
Navigation
Home
Ourfood.com-HTML
Ourfood.com-pdf
July 2007

Navigation
Home
Ourfood.com-HTML
Ourfood.com-pdf
GM Food
20.07.2007: BASF GM potato Amflora was not approved by EU agrarian ministers [1]
The European Food Safety Authority (EFSA) had judged that Amflora is, for humans, animals and the environment, unlikely to pose a threat o human health. However, Austria, Italy and Ireland voted on 16.07.07 against giving Amflora the green light yesterday, whereas France and Bulgaria abstained.
The EU trade commissioner Peter Mandelson in a speech, had warned from not approving the GM potato saying that in this case Europe would suffer economic consequences.
EuropaBio had backed Amflora, saying that the GM potato would strengthen the competitiveness of the potato starch industry.
Although
Amflora is intended for the production of starch for industrial
applications. However, the remaining potato pulp is to be used as an
animal feed. The food chain is therefore directly affected. Therefore
the negative vote of Austria, Italy and Ireland was welcomed by
environmental groups.
BASF joined Monsanto to invest 1.2 billion euros to develop GM corn, cotton and soya in the next 10 years.
[1] See OurFood-News 29.06.2007: EU Council of Ministers postpones its decision on approval of GM Amflora potato from BASF
Five-a-day rule
20.07.2007: Very high intake of fruits and vegetable does not reduce the risk of breast cancer [1] [2]
Marcia
Stefanick and colleagues found that women who were previously treated
for early stage breath cancer, and found that adopting a diet very high
in vegetables, fruit and fibre and low in fat (doubling the five-a-day
recommendations) did not have a lower risk of breast cancer recurrence,
compared to women who followed a diet of five or more servings a day
(400g) of fruit and vegetables.
The authors, however affirm that
that fruit and vegetables do conferred benefits, but getting more than
the recommended amounts doesn't change the recurrence rate for women
who have already completed treatment for early-stage breast cancer.
The
authors concluded that available data do not support best practice
dietary recommendations to improve long-term prognosis for early stage
breast cancer survivors.
Thomas L. Schwenk commenting the
current trial argues that the relatively small differences in the diets
between the groups and the fairly short follow-up time (7,5 y) may have
caused the disappointing results. In any case, this study shows that
relatively small changes in vegetable, fruit, and fat intake alone did
not make a difference in reducing the risk for breast cancer
recurrence. [3]
[1] Pierce JP, Stefanick, M.L. et al.:
Influence of a diet very high in vegetables, fruit, and fiber and low
in fat on prognosis following treatment for breast cancer: The Women’s
Healthy Eating and Living (WHEL) randomized trial. JAMA 2007 Jul 18;
298:289-98.
[2] Gapstur, Susan M.; KhanFat, Seema: Fruits,
Vegetables, and Breast Cancer Survivorship. Editorial: Journal of the
American Medical Association 2007;298:335-336.
http://jama.ama-assn.org/cgi/content/extract/298/3/335
[3] Schwenk, Thomas L.: Diet and Breath Ca<ncer. Comment publisched in Journal Watch General Medicine July 17, 2007
http://general-medicine.jwatch.org/cgi/content/full/2007/717/1
Obesity
20.07.2007: High protein diet may allow ingestion of high-glycemic index carbohydrates without high blood glucose response [1]
Mandy
Claessens and colleagues 2007 say that high-protein diets are
beneficial in weight maintenance because of their satiating and
thermogenic effects. These effects may be partly mediated by the
hormonal effects of proteins. The researchers tested the effect of soy
protein hydrolysates on diet-induced thermogenesis and insulin response
with and without a carbohydrate pre- and afterload.
They found
that the dietary induced thermogenic effect was larger after protein
than after a carbohydrate load. This may be related to the glucagon
response that is induced by protein but not by charbohydrates. The
protein-induced dietary induced termogenesis and glucagon response are
not influenced by a carbohydrate pre- or afterload; and that protein
ingestion can fully prevent the plasma glucose increase associated with
carbohydrates when they are ingested after proteins. This condition may
allow ingestion of high-glycemic index carbohydrates without the
associated high blood glucose response.
[1] Claessens, Mandy;
Calame, Wim; Siemensma, André D.;. Saris, Wim H.M.; van Baak, Marleen
A.: The thermogenic and metabolic effects of protein hydrolysate with
or without a carbohydrate load in healthy male subjects. Metabolism
(Elsevier) August 2007, Volume 56, Issue 8, Pages 1051-1059. Metabolism (Elsevier)
Food Ingredients
19.07.2007: Ethyl lauroyl arginate as a food preservative [1]
The
active ingredient of ethyl lauroyl arginate,
ethyl-Nα-lauroyl–L-arginate HCl, is the hydrochloride salt of an
N-fatty acylsubstituted amino acid ethyl ester.
Ethyl
lauroyl arginate is intended to be used as a preservative. The
anti-microbial activity of ethyl lauroyl arginate is due to the
cationic surfactant properties of its active ingredient
ethyl-Nα-lauroyl-L-arginate.
It is concluded that, on ingestion by humans, ethyl lauroyl arginate will be broken down to products of normal metabolism.
Based
on the NOAEL of lower than 106 mg/kg bw/day. and a safety factor of
100, the Panel established an ADI of 0.5 mg ethyl lauroyl arginate of
the proposed specifications /kg bw.
The safety factor of 100 is
considered sufficient in spite of the fact that the ADI is based on a
90-day study because the effects on white blood cells do not become
more severe upon prolonged exposure.
Potential
dietary exposure to ethyl lauroyl arginate was estimated based on UK
food consumption data and on the assumption that it would be present in
all food categories for which use levels are proposed. Potential
dietary exposure was found to be at or above the ADI in high consumers
for both children aged 1.5 to 4.5 (580% of the ADI), children aged 4 to
18 (370% of the ADI) and adults (100% of the ADI). Potential mean
dietary exposure to ethyl lauroyl arginate in consumers only was also
at or above the ADI for both children aged 1.5 to 4.5 (170% of the ADI)
and children aged 4 to 18 (106% of the ADI).
[1] EFSA: Opinion
of the Scientific Panel AFC related to an application on the use of
ethyl lauroyl arginate as a food additive. Publication Date: 16 July
2007
http://www.efsa.europa.eu/en/science/afc/afc_opinions/ej511_lauric_arginate.html
Future of Global Nutrition
19.07.2007: EU Commission: Bay of Biscay anchovy fishery to remain closed[1]
The
Bay of Biscay anchovy fishery which is currently closed until the end
of the year will not be reopened. The advice, recently delivered by the
Commission's Scientific, Technical and Economic Committee on Fisheries
(STECF), was that "management measures other than complete closure of
the fishery in 2007 should not be considered".
STECF estimated the quantity of adults in the stock at 30,000 tonnes. This is higher than last spring's 18,640 tonnes, but still well below the level at which commercial fishing can safely resume. Given the depleted state of this stock, and the short life span of anchovy, it is paramount that each adult be given the chance to contribute to the rebuilding of the stock.
[1] Commission: Bay of Biscay anchovy fishery to remain closed. Reference: IP/07/1139 Date: 19/07/2007
http://europa.eu/rapid/pressReleasesAction.do?reference=IP/07/1139&format=HTML&aged=0
&language=EN&guiLanguage=en
Nanotechnology
19.07.2007: European Code of Conduct for responsible nanosciences and nanotechnologies research[1]
The
European Commission has today announced a public consultation on
responsible nanosciences and nanotechnologies research. The
consultation will provide input for a Recommendation to the Member
States on a possible Code of Conduct for this emerging area of science,
which the Commission will put forward later this year.
At the same time, some, though not all, areas of nanoscience come with very specific issues, related to properties such as their minuscule size, their ability to cross natural bio-boundaries or potential to connect living creatures and man-made materials and systems. Therefore the responsible management and control of nano-sciences has become a very specific region of the science and technology landscape in the last decade, particularly as regards ethics, safety and environment and the fundamental rights of individuals, such as the protection of personal data.
[1]
Commission launches consultation on responsible research in
Nanosciences and Nanotechnologies. Reference: IP/07/1140 Date:
19/07/2007
http://europa.eu/rapid/pressReleasesAction.do?reference=IP/07/1140&format=HTML&aged=0
&language=EN&guiLanguage=en
Regulation
19.07.2007: Call for a single unified US Food Safety Agency [1]
According
to the Center for Science in the Public Interest (CSPI) all imported
meat and poultry products are visually inspected at the border and
subject to microbial and chemical testing, 99 percent of imported
seafood, produce, animal feeds, and grains pass through U.S. borders
uninspected.
According to the Center for Science in the Public Interest, that’s
because meat and poultry products are regulated by the well funded U.S.
Department of Agriculture (USDA), and most other foods are regulated by
the woefully underfunded Food and Drug Administration (FDA).
CSPI
food safety director Caroline Smith DeWaal said that even when USDA and
FDA are operating at the same port, they don’t share inspectors. DeWaal
said that Congress should dramatically increase funding for the FDA and
modernize food safety laws that are more than a century old.
Ultimately, Congress should create a single unified Food Safety
Agency—a proposal championed by Senator Richard Durbin (D-IL) and
Representative Rosa Delauro (D-CT) and recommended by the National
Academy of Sciences.
[1] CSPI: Chinese Import Scandal Demonstrates FDA Failings, Congress Told
CSPI
Urges New Money for FDA, Ultimately Single Food Safety Agency . Press
release Chinese Import Scandal Demonstrates FDA Failings, Congress Told
CSPI Urges New Money for FDA, Ultimately Single Food Safety Agency .
http://www.cspinet.org/new/200707171.html
Physiology
19.07.2007: Comprehensive Assessment of the Long-term Effects of Restricting Intake of Energy (CALERIE) trial
Food cravings are bound to calories, not carbohydrates [1]
Craved
foods are related to high energy density and fat content, and low
protein and fiber contents. Lifestyle modification programs for
long-term weight loss Portion should be focussed on size of craved
foods and frequency of giving in to food cravings.Understanding food
and taste preferences and cravings may become important to tackle
obesity epidemic.
According to the authors cravings resulted
from dieting will be for calorie-dense foods. It is helpful to
substitute foods that taste similar but have fewer calories, since the
craving can be satisfied by related tastes. The authors recommend that
allowing yourself to have the foods you crave, but doing so less
frequently may be one of the most important keys to successful weight
control.
[1] Gilhooly, C H; Das, SK; Golden, JK; McCrory, MA;
Dallal, GE; Saltzman, EF; Kramer, M; Roberts, SB: Food cravings and
energy regulation: the characteristics of craved foods and their
relationship with eating behaviors and weight change during 6 months of
dietary energy restriction. International Journal of Obesity doi:
10.1038/sj.ijo.0803672. 26 June 2007
http://www.nature.com/ijo/journal/vaop/ncurrent/abs/0803672a.html;jsessionid=
DA96D87BB0A95964B60A349AE5C0479B
Markerting
16.07.2007: Psychology of labelling: Low fat, high sugar
| It was a good idea to bring a product with low fat (0,4%) and to hail it with giant letters on the front of the package. However, it was not a good idea to add 6% of sugar, which stands for an amount of fat of 3% . Marketing wisely concealed this fact in small letters amidst the Ingredients List where quick shoppers never look. Its legal, but the hidden psychological trick drives up obesity. | ![]() |
Physiology
14.07.2007 Flavonoids derived from the Chinese herb Epimedium, the Horny Goatweed may have benefits against osteoporosis [1]
According
to Ge Zhang and colleagues phytoestrogen flavonoids from Horny Goatweed
(Epimedium brevicornum maxim) may prevent bone loss in late
postmenopausal women without resulting in a detectable hyperplasia
effect on the endometrium.
The marker of bone resorption
deoxypyrdinoline was decreased by by 39 per cent after two years in the
supplemented group compared with no supplementation.
These
results add to similar results from the soy phytoestrogen isoflavones
study, reporting that a 90 mg/d dose of soy isoflavones may improve
bone density. [2]
Another study related to isoflavones reports
that high soy consumption was linked with a 48 per cent decrease in
fractures for women who had been menopausal for less than 10 years. [3]
[1]
Zhang, Ge; Qin, Ling; Shi, Yinyu: Epimedium-Derived Phytoestrogen
Flavonoids Exert Beneficial Effect on Preventing Bone Loss in Late
Postmenopausal Women: A 24-Month Randomized, Double-Blind and
Placebo-Controlled Trial. Journal of Bone and Mineral Research. July
2007, Volume 22, Pages 1072-1079, doi: 10.1359/jbmr.070405
http://www.jbmronline.org/doi/abs/10.1359/jbmr.070405
[2]
Ma, D-H.; Qin, L-Q.; Wang, P-Y.; Katoh, R.: Soy isoflavone intake
inhibits bone resorption and stimulates bone formation in menopausal
women: meta-analysis of randomized controlled trials. European Journal
of Clinical Nutrition, 28. March 2007, doi: 10.1038/sj.ejcn.1602748
http://www.nature.com/ejcn/journal/vaop/ncurrent/abs/1602748a.html
[3]
Zhang, Xianglan; Shu, Xiao-Ou; Li, Honglan; Yang, Gong; Li; Qi; Gao,
Yu-Tang; Zheng, Wei: Prospective Cohort Study of Soy Food Consumption
and Risk of Bone Fracture Among Postmenopausal Women. Arch Intern Med.
2005;165:1890-1895.
http://archinte.ama-assn.org/cgi/content/abstract/165/16/1890
14.07.2007: Cancer-risk from soft drinks – Lawsuit against PepsiCo and others [1]
A
lawsuit in the US demand that beverage makers like PepsiCo remove their
drinks from store shelves and reformulate their products. The drinks
contain chemical preservatives sodium benzoate or potassium benzoate
(or benzoic acid) together with ascorbic acid or vitamin C. These
ingredients can stimulate the formation of cancerigenous benzene. The
reaction increases with elevated temperatures
FDA
had tolerated this for 15 years, asking the companies to reformulate
their products, however, the producers did not change their products.
Now they are forced by law to reformulate the soft drinks, fruit
nectars and flavoured waters. [2]
More than 1,500 new soft
drinks containing sodium benzoate (or benzoic acid) and ascorbic acid
or citric were marketed in Europe, North America and Latin America in
the last four years. The lawsuit is bound to USA borders, The problem
will therefore continue in other countries.[2]
Check here products with high content of cancer-risk Benzene [3]
Outstanding high benzene levels were found by FDA in:
Giant
Diet Sun Pop Orange, Safeway Select Diet Orange, Shasta Caffeine Free
Orange Soda, Sunny D Citrus Punch, AquaCal Strawberry Flavored Water,
AquaCal Peach Mango Flavored Water Beverage, AquaCal Concord Grape
Flavored Water Beverage, BellyWashers Black Cherry Blast Vitamin C
Juice Drink, BellyWashers Battle Berry Vitamin C Juice Drink,
BellyWashers Eerie Berry Vitamin C Juice Drink, Faygo Moon Mist,
Crystal Light Sunrise Classic Orange, Rush! Energy Lite Drink, Kool-Aid
Jammers 10 Juice Drink Tropical Punch, Kool-Aid Jammers Juice Drink
Kiwi-Strawberry, Giant Light Cranberry Juice Cocktail, Ocean Spray
Light Cranberry Juice Cocktail, NEW Crystal Light Sunrise Classic
Orange, Diet Wild Cherry Pepsi, Baja Orange, Baja Berry, Diet Rockstar,
Polar Diet Orange Dry, Shasta Caffeine Free Regular Orange.
The brands are: PepsiCo, Sunny Delight Beverages Co., Rockstar Inc., Polar Beverages Inc. Shasta Beverages Inc. [1]
FDA believes Benzene in soft drinks of no safety concern [4]
FDA
believes that the results of CFSAN's recent survey indicate that the
levels of benzene found in soft drinks do not pose a safety concern.
Do
not believe what FDA does. Safety on cancer risk is zero tolerance.
Most of the soft drinks are being heavily consumed by children a
cancer- risk of exposure in childhood will follow them the whole life.
Benzene
in soft drinks should be seen in the context of wider environmental
exposure. Taking the worst example found to date, of a soft drink
containing 87.9ppb benzene, someone drinking a 500ml can would ingest
44μg (micrograms) of benzene. Whilst there is no justification for a
soft drink to contain high levels of benzene ("There is a difference
here between a small and unavoidable risk, and a small but avoidable
risk.”). The European Union also criticized the FDA for not acting on
the Total Diet Study results showing the nearly 80% of the diet soft
drinks exceeded the federal drinking water standards. [5]
The use of preservatives in soft drinks
Chemical
preservatives such as benzoates (or benzoic acid) are the source of
benzene. There is no need of chemical preservation when cleaning and
disinfection systems of the packaging material and the production line
are made periodically according to a HACCP system. The need of
preservatives indicate a loophole of cleaning and food safety of the
production line.
FDA testing does not represent the reality [2]
The
independent scientist James Neal-Kababick woke up FDA from their
lethargy and presented a better test for benzene. He claims that
products on shelves, exposed to heat may develop more benzene as found
in so-called off-the-shelf testing of FDA.
Protection for your kinds and yourself
Read the INGREDIENT LIST. Look for preservative: BENZOATE or BENZOIC ACID do not buy these drinks. They pose cancer risk.
[1] The Journal News: Pepsi agrees to settlement in benzene lawsuit. 12.07.2007
http://www.thejournalnews.com/apps/pbcs.dll/article?AID=
/20070712/BUSINESS01/707120428
[2] Food Navigator: Pepsi and others settle benzene lawsuit. 13.07.2007
http://www.foodnavigator.com/news/ng.asp?n=78173-pepsico-coca-cola-benzene
[3] FDA: Data on Benzene in Soft Drinks and Other Beverages: Data through May 16, 2007
http://www.cfsan.fda.gov/~dms/benzdata.html
[4] FDA Statement April 13 2006: Benzene in Soft Drinks.
http://www.fda.gov/bbs/topics/NEWS/2006/NEW01355.htm
[5] Wikipedia, the free enzyclopedia: Benzene in soft drinks
http://en.wikipedia.org/wiki/Benzene_in_soft_drinks
12.07.2007: Marketing strategies
Labeling
of energy, fat,carbohydrates and protein in front of package is good
action, however it does not match the intended goal of UK Food
Standards Agency. It does not use the colors proposed by the FSA.
The members of the European Union should hold on such standard
decisions. 
UK Traffic light labeling
initiated by the UK FSA uses the colors RED for bad (high) , YELLOW for middle (acceptable) and GREEN for good amount. X 
Some
marketing strategies try to bring their labeling as near as possible
to high values. Such as the Fruit Yoghurt YOGANIC which may be
interpreted wrongly as ORGANIC. This product is not of organic origin. 
Food supplements
12.07.2007: Calcium ascorbate with a content of threonate for use as a source of vitamin C in food supplements [1]
According
to the opinion of the Scientific Panel of The European Food Safety
Authority the bioavailability of vitamin C from calcium ascorbate with
a content of threonate is comparable to that of ascorbic acid.
The
Panel noted that threonate is a normal metabolite in the body and
concluded that the use of calcium ascorbate containing up to 2%
threonate as a source of vitamin C in food supplements is not of safety
concern.
22
Ring-substituted phenolic substances from chemical groups 21 and 25
(Commission Regulation (EC) No 1565/2000 of 18 July 2000) [2]
when
the Scientific Panel examined the information provided by the European
flavouring industry on The informations provided by the European
flavouring industry were found to be grossly underestimating the intake
by regular consumers of products flavoured at the reported use level
In
consequence, the Scientific Panel had reservations about the data on
use and use levels provided and the intake estimates obtained by the
MSDI approach.
According to the default MSDI approach, the 23
flavouring substances in this group have intakes in Europe from 0.001
to 2.2 microgram/capita/day, which are below the thresholds of concern
for both structural class I (1800 microgram/person/day) and structural
class II (540 microgram/person/day) substances.
One of the
flavouring substances, 3,4-methylenedioxyphenol [FL-no: 04.080] was
reported to have a genotoxic potential in vitro while in vivo studies
were not available for this candidate substance. Therefore, the Panel
decided that the Procedure could not be applied to this flavouring
substance until adequate genotoxicity data become available. The
genotoxicity data available for the other flavouring substances in the
present Flavouring Group Evaluation do not preclude their evaluation
through the Procedure.
The flavouring substances in this group
are conjugated with glucuronic acid or sulphate very efficiently,
pathways which are not easily saturated. At high dose levels reactive
metabolites (quinones, catechols, quinone methides) may be formed, but
it is not expected that at intake levels estimated from the use as
flavouring substances the formation of these metabolites would
overwhelm the detoxication capacity through conjugation with sulphate,
glucuronic acid or in particular glutathione. Thus, it is concluded
that all 22 substances in this group which have been evaluated using
the Procedure may be expected to be metabolised to innocuous substances
at the estimated levels of intake, based on the MSDI approach.
Adequate
specifications including complete purity criteria and identity tests
for the materials of commerce have been provided for all 22 flavouring
substances evaluated through the Procedure and these would present no
safety concern at the levels of intake estimated on the basis of the
Maximised Survey-derived Daily Intakes (MSDI) approach.
[1]
EFSA: Opinion of the Scientific Panel AFC related to Calcium ascorbate
with a content of threonate for use as a source of vitamin C in food
supplements. Publication Date: 29 May 2007.
http://www.efsa.europa.eu/en/science/afc/afc_opinions/ej491_calcium_ascorbate.html
[2]
EFSA: Opinion of the Scientific Panel AFC related to Flavouring Group
Evaluation22: Ring-substituted phenolic substances from chemical groups
21 and 25 (Commission Regulation (EC) No 1565/2000 of 18 July 2000).
Publication Date: 4 May 2007.
http://www.efsa.europa.eu/en/science/afc/afc_opinions/ej393_fge22.html
Food Colours
12.07.2007: Food colour Red 2G used in certain sausages and burger meat raises potential safety concerns[1]
The
AFC Panel of the European Food Safety Authority (EFSA) has adopted on
the 5th of July 2007an opinion on the food colour Red 2G (E 128). The
use of this colour which is only permitted in certain breakfast
sausages and burger meat raised potential health concerns. This is the
first opinion in a series of re-evaluations EFSA is currently
undertaking on the safety of food additives, including colours,
authorised in the European Union (EU).
Red
2G has been shown to convert largely in the body into a substance,
called aniline. Based on animal studies the Panel concluded that
aniline should be considered as a carcinogen
On the basis of the EFSA evaluation, the UK Food Standards Agengy recommends that food producers stop using Red 2G.
Under
current European Union legislation, Red 2G is only permitted for use in
specific meat products, namely, breakfast sausages with a minimum
cereal content of 6% and burger meat with a minimum vegetable and/or
cereal content of 4%. Red 2G is not permitted to be used as an additive
in any other foods. Red 2G is likely to only be present in the
specified products at very low levels and does not pose an immediate
health risk to consumers. [2]
[1] EFSA re-evaluates safety of food colours and adopts first opinion
Food colour Red 2G raises potential safety concerns. Publication Date: 9 July 2007 .
http://www.efsa.europa.eu/en/press_room/press_release/pr_red2g.html
[2] Advice on food colouring. Tuesday 10 July 2007
http://www.food.gov.uk/news/newsarchive/2007/jul/red
GM Food
10.07.2007 First African GM plant ready to be commercialised [1]
Scientists
at the University of Cape Town, South Africa, and the South African
seed company, Pannar Pty, developed a genetically modified (GM) maize
is resistant to maize streak viruses (MSV) which are endemic to
sub-Saharan Africa and adjacent Indian Ocean islands.
The
scientists say that he maize will only be sold in Africa. A mutated
protein from maize streak viruses was introduced in the chromosome of
the GM maize prevents the virus from replicating and killing the plant.
It is planed also to modify barley, wheat, oats, sugarcane, and millet,
which suffer from similar diseases.
Growing global GM cultivation [2]
The
African CM maize will cause a further increase of the world total
acreage cultivated with GM crops. The International Service for the
Acquisition of Agri-biotech Applications (ISAAA) showed that in 2006
the number of hectares globally cultivated with GM crops increased by
12 million hectares. Most of this growth came from countries such as
China and India.
The report is co-sponsored by the Rockefeller
Foundation, a U.S.-based philanthropic organization associated with the
Green Revolution that saved up to a billion lives in the 1960s, and
Ibercaja, one of the largest Spanish banks headquartered in the maize
growing region of Spain.
Key GM planting countries
According tp a report ISAAA.org key GM planting countries are:
The
Americas: The United States continues to drive growth in North America
and globally, accounting for the greatest absolute acreage increase in
2006 with the addition of 4.8 million hectares. Brazil leads growth in
South America with an increase of 22 percent to total 11.5 million
hectares of soybeans and biotech cotton, the latter commercialized for
the first time in 2006.
Asia: India is emerging as a key leader in Asia. The country tallied the most substantial percentage increase at 192 percent or 2.5 million hectares to total 3.8 million hectares, jumping two spots in the world ranking to become the fifth largest producer of biotech crops in the world, surpassing China for the first time.
Africa: South Africa made significant strides in the past year to lead the African continent forward by almost tripling its biotech crop area. Notably, the gain came from Bt white maize, primarily used for food, and Bt yellow maize used for livestock feed.
Europe:
Growth also continues in the countries of the EU where Slovakia became
the sixth EU country out of 25 to plant biotech crops. Spain continues
to lead the continent, planting 60,000 hectares in 2006; however, the
other five EU countries reported a five-fold increase in plantings from
1,500 hectares in 2005 to about 8,500 hectares in 2006
[1] University of Cape Town: Scientists gear up to take GM maize into the field
26 January 2007
http://www.news.uct.ac.za/dailynews/archives/?id=6091
[2]
International Service for the Acquisition of Agri-Biotech Applications:
Global Biotech Area Surges Past 100 Million Hectares on 13 Percent
Growth. Study predicts 200 million hectares, 20 million farmers by 2015
http://www.isaaa.org/resources/publications/briefs/35/pressrelease/default.html
Environment
10.07.2007: German hydrogen technology may avoid global energy shortage and green arid regions
War for land and oil [1]
Climate
change, and the resulting shortage of ecological resources, could be to
blame for armed conflicts in the future, according to David Zhang from
the University of Hong Kong and colleagues. The authors found that
temperature fluctuations and reduced agricultural production explain
warfare frequency in eastern China in the past in societies with
limited technology such as pre-industrial China. Zhang and colleagues
suggest that shortages of essential resources, such as fresh water,
agricultural land, energy sources and minerals may trigger more armed
conflicts among human societies.
Energy dependence [2]
Energy
dependence of the new technology era adds another war potential. To
avoid increase of conflict between USA and oil rich territories, The
United States, with less than 5% of the world
population, emits over 25% of the worlds´ carbon dioxide
United nations should act on:
1- Development of carbon dioxide and nuclear free energy technology
2- Avoiding desertification and restoring agriculture arid zones.
The German hydrogen technology [3]
The
EU Project known as Zero Regio is a cooperation with the EU, German
government and industrial corporations. AGIP maintains fuel stations
for hydrogen cars in Frankfuirt and suroundings. The whole technology
of production of hydrogen, its storage, transportation and handling has
been developed and is being maintained by the project.
The EU commitment to climate, environmental friendly energy and African aid. [4]
Due
to the proximity to the arid zones of northern Africa it should be a
primary task of the EU to tackel climate change, energy dependence ,
poverty and growing desertification.
The
Speech of José Manuel Durão Barroso President of the European
Commission: The EU: ending the doubts on energy and climate change
IFRI energy programme Brussels, 24 May 2007:
“Attention
should focus on strengthening the EU Africa dialogue on access to
energy and energy security; increasing investment in energy
infrastructure, including promotion of energy efficiency and renewable
energy; placing capacity building in the areas of energy and climate
change high on our agenda of development aid; encouraging the flow of
oil and gas revenues into development; promoting greater transparency
and investment-friendly frameworks; and mainstreaming climate change
into development cooperation. Let us be frank – those who will be
hardest hit by climate change will be those who can least afford it.
A
key milestone for progress this year is the UN Climate Conference in
Bali this December. The EU has already launched the worldwide debate on
climate change; if we continue to lay the groundwork at other events
this year, then I hope Bali will be the moment to launch negotiations
on a global and comprehensive, post-2012 agreement.”
Details of the project
A
feasibility study will analyse the possibility of covering large area
of desert zones of northern Africa with photovoltaic. in a first phase
2.500 km² of desert will be covered by PV cells, delivering electrical
energy sufficient to produce 18 Million Tons/y of hydrogen. Climate
change due to shadowing the area would regain it for agriculture.
A
second phase of the project uses the feed-back from from the first
module, will increase the area covered by PV cells. Rotation of the
location of the modules should turn the arid zones back to arable
regions. This will be an enormous aid to reduce poverty as the hosting
countries could demand royalties for their wealth of sun energy.
Low-priced access of produced hydrogen to the international energy market is the aim of this phase of the project.
At the third phase wil mark handover of the outcomes of the project to the management of the United Nations.
[1]
Zhang DD, Zhang J, Lee HF, He Y (2007). Climate change and war
frequency in eastern China over the last millennium. Human Ecology;
(DOI: 10.1007/s10745-007-9115-8)
[2] Kyoto Protocol on climate change: Need for committed international solidarity. Doc. 9058 24 April 2001
http://assembly.coe.int/Documents/WorkingDocs/doc01/EDOC9058.htm
[3] Zero Regio: June 2007: Project-CD ROM Online
http://www.admin.zeroregio.de/CDROM/anfang.html
[4]
José Manuel Durão Barroso, President of the European Commission: The
EU: ending the doubts on energy and climate change IFRI energy
programme Brussels, 24 May 2007 http://europa.eu/rapid/pressReleasesAction.do?reference=SPEECH/07/332&format=HTML&aged=0&language=EN&guiLanguage=en
Food-Borne Virus Diseases
07.07.2007: Avian flue hits Germany again[1]
Dead
wild birds had been detected in several places of Germany. One outbreak
in a small farm in Thuringia, Germany was now confirmed as being caused
by H5N1. Around 3 three kilometer all poultry were culled by veterinary
officials.
All
over Germany poultry is being kept indoors.The last German outbreak of
the disease took place on 5. April 2006 in a farm near Leipzig. 21.000
animald had to be culled. In 2007 outbreaks already Hungary, Czechia
and Great Britain
[1] Spiegel Online:Thüringen- Vogelgrippe-Erreger bei Nutztieren entdeckt
http://www.spiegel.de/wissenschaft/natur/0,1518,493061,00.html
Physiology
06.07.2007: Small amounts of dark chocolate lower blood pressure [1]
Acording
to a researche of Dirk Taubert and colleagues, 2007, blood pressure
could be reduced including relatively small amounts of dark chocola top
diet.
6.3
g (30 kcal) of dark chocolate containing 30 mg of polyphenols were
given to the patients for 18 weeks.Blood pressure and plasma markers of
vasodilative nitric oxide (S-nitrosoglutathione) and oxidative stress
(8-isoprostane) and the bioavailability of the cocoa polyphenols were
measured. Systolic pressure was found to have fallen by 2.9 mm of
mercury and diastolic pressure by 1.9 mm.
The
researchers pointed out that although the changes in BP appeared small
they were clinically noteworthy.For instance, a 3 mm reduction in blood
pressure could reduce the relative risk of stroke mortality by 8%, of
coronary artery disease by 5% and all cause mortality by 4%.
Sara
Stanner at the British Heart Foundation noted that chocolate is high in
fat and calories which are not good for the heart.A better way of
getting polyphenols, vitamins and minerals to protect the heart is to
consume 5 portions/day of fresh fruit and vegetables. (JAMA)
[1] Taubert, Dirk; Roesen, Renate; Lehmann, Clara; Jung, Norma; Schömig, Edgar: Effects of Low Habitual Cocoa Intake on Blood Pressure and Bioactive Nitric Oxide: A Randomized Controlled Trial. JAMA. 2007;298:49-60.
http://jama.ama-assn.org/cgi/content/abstract/298/1/49
Packaging, Microbiology
06.07.2007:
Modified atmosphere packaging (MAP) method reducing oxygen levels may
increase infectivity of Listeria monocytogenes [1]
Jens
Bo Andersen and colleagues 2007 found that Listeria cultivated under
oxygen-restricted conditions were approximately 100 fold more invasive
than similar cultures grown without oxygen restriction.
According to the authors oxygen restriction increases the initial translocation of Listeria from the gut lumen to internal organs, but does not influence the ability of the bacteria to proliferate inside the investigated organs.
The
authors suggest that the observed increased infectivity of L.
monocytogenes grown under oxygen-restricted conditions can be
attributed to an increased expression of the InternalinA (InlA)
protein, which is known to be a key factor for virulence of L.
monocytogenes,.
The authors stress that not only the number of
Listeria present in a given food item, but that also the physiological
condition of these bacteria is important for food safety, and that an
oxygen-restricted L. monocytogenes cell represents a significantly
higher risk than a cell grown without oxygen restriction.
This
is highly relevant for safety assessment of this organism in food and
calls for a revision of the systems for packaging under controlled
atmosphere, which remove air from the space above food and flushes in
inert gases such as carbon dioxide and nitrogen.
[1] Jens Bo
Andersen, Bent B Roldgaard , Bjarke Bak Christensen and Tine Rask
Licht: Oxygen restriction increases the infective potential of Listeria
monocytogenes in vitro in Caco-2 cells and in vivo in guinea pigs. BMC
Microbiology 2007, 7:55 doi:10.1186/1471-2180-7-55
http://www.biomedcentral.com/1471-2180/7/55
Quality and Safety Standards
06.07.2007: Free Web Seminar on food safety and quality standards [1]
Single
Food Audit Pack helps to meet the requirements of most internationally
recognized food safety or quality standards including ISO 22000, ISO
9001, HACCP, GMP, BRC and IFS with a single audit. Join a FREE web
seminar to learn more. SGS Group: Six Sigma Standard Info Session Next
event: July 17, 2007 10-11 am Eastern DT
http://sf1.novisgroup.com/b.php?b=08zbepw&m=1fne705&c=nfuzqfgkdkribxo
Dietary Supplements
06.07.2007: Magnesium reduces diabetes type 2 risk [1]
Susanna
C. Larsson and colleagues in a meta-analysis found that magnesium
intake was inversely associated with incidence of type 2 diabetes, with
every 100 mg per day increase in magnesium intake linked to a 15 per
cent decrease in disease risk. The authors recommend therefore
increased consumption of magnesium-rich foods such as whole grains,
beans, nuts, and green leafy vegetables to reduce the risk of type 2
diabetes.
[1] Larsson, Susana C.; Wolk,A.: Magnesium intake and
risk of tpe-2 diabetes: a meta-analysis. Journal of Internal Medicine
(Blackwell Publishing)Published on-line, doi:
10.1111/j.1365-2796.2007.01840.x
http://www.blackwell-synergy.com/doi/abs/10.1111/j.1365-2796.2007.01840.x
Organic Foods
05/07/2007: Organically grown tomatoes contain higher levels of flavonoids than conventional tomatoes[1]
Alyson
E. Mitchel and colleagues, comparing organic and conventional tomatoes
over a period of ten years found that organically grown tomatoes
contained on average 79 and 97 per cent more quercetin and kaempferol
aglycones flavonoids than conventionally grown tomatoes.
The
authors report that the levels of flavonoids increased over time in
samples from organic treatments, whereas the levels of flavonoids did
not vary significantly in conventional treatments. This increase
corresponds not only with increasing amounts of soil organic matter
accumulating in organic plots but also with reduced manure application
rates once soils in the organic systems had reached equilibrium levels
of organic matter.
Over-fertilisation of the conventionally
grown plants was seen by the authors as the reason of reduced
flavonoids in conventional tomatoes . Flavonoids are produced as a
defence mechanism of the plant in response to nutrient deficiency in
organic soils and therefore increase in tomatoes grown under such
conditions.
The comment of UK FSA concerning organic tomatoes [2]
Andrew
Wadge, from UK Food Standards AgencyI commenting the article of
Williamso writes that there is not enough evidence to show that
increasing intakes of flavonoid rich foods will reduce heart disease,
because other factors associated with high fruit and vegetable intakes
may be responsible for their cardiovascular protection.
Wadge stresses that the Agency has commissioned a large study that will assess the effect increasing consumption of flavonoid-rich and flavonoid-poor fruit and vegetables has on cardiovascular disease risk factors. [3]
The
British Tomato Growers’ Association technical expert is reported as
saying that there is little difference between traditionally and
organically grown tomatoes in Britain so he couldn’t see the
opportunity for much difference in their nutritional value. [2]
[1]
Mitchell, Alyson E. Hong, Yun-Jeong; Koh, Eunmi; Barrett, Diane
M.;Bryant, D. E.; Denison, R. Ford; Kaffka, Stephen: Ten-Year
Comparison of the Influence of Organic and Conventional Crop Management
Practices on the Content of Flavonoids in TomatoesJournal of
Agricultural and Food Chemistry. Published on-line ahead of print, ASAP
Article doi: 10.1021/jf070344+ S0021-8561(07)00344-5
http://pubs.acs.org/cgi-bin/abstract.cgi/jafcau/asap/abs/jf070344+.html
[2] FSA: Organic Tomatoes.05.07.2007
http://www.fsascience.net/2007/07/05/organic_tomatoes
[3]
FSA: N02039: Impact of increasing doses of flavonoid-rich and
flavonoid-poor fruit and vegetables on cardiovascular risk factors in
an 'at risk' group (URFAVS) 31.01.2007
http://www.food.gov.uk/science/research/researchinfo/nutritionresearch/dietandcardiovasc/
n02programme/n02projilist/n02039/
Nuclear Energy
04.07.2007:
Officials hold back informations concerning nuclear power plant
incident to influence Energy Summit of Cancellor Merkel [1]
On 28 June 2007 two German power plants were shut down because of unsettled incidents. [1]
An external fire in a transformator of the power plant of Krümmel, in the proximity of the metropolis Hamburg caused the failure of the cooling system of the core of the reactor. Pressure and the level of cooling water went down, safety valves opened . A second cooling system avoided further harm. This incident, however demonstrates that external incidents interfere in the security of the nuclear core. [2]
The informations were held back by officials in order not influence the Energy Summit of Chancellor Merkel in Berlin on the 3 July 2007 which, under the pressure of the atomic lobby, decided the comeback of nuclear power plants in Germany in 2009.
This
decision was held in detriment of research and backing new inovative
projects, such as solar voltaic electricity power plant situated in the
desert zone of North Africa, producing hydrogen which could fuel power
plants elswhere with almost zero emision.
[1] Spiegel Online: Ministerium hielt Informationen über Reaktor-Zwischenfall zurück.
http://www.spiegel.de/wissenschaft/mensch/0,1518,492332,00.html
[2] Spiegel Online: Reactor Affected in Nuclear Power Plant Fire
http://www.spiegel.de/international/germany/0,1518,492305,00.html
Food Safety
04.07.2007: Unsafe EU From Farm to Fork [1] [2]
UK
Cadbury Schweppes pleads guilty for selling chocolate contaminated by a
leaking waste water pipe with causing Salmonella montevideo strain
outbreak.
According to the Birmingham City Council the
company knew about the contamination but still sold the product,
recalled the chocolate bars only after the UK Food Standards Agency.
and the Health Protection Agency got envolved on the fact that 37
people were reported being infected by Cadbury chocolate products from
January to June 2006.
Cadbury is accused of not reporting
positive private tests revealing the presence of salmonella strain in
January last year alleging the levels present did not pose a danger.
This is an infringement against article 19 (3) of the EU General Food
Law. The food business operator is obliged to immediately inform the
competent authorities if it considers or has reason to believe that a
food which it has placed on the market may be injurious to human
health. Cadbury Sweppes alleged that the low level of Salmonella had
been considered by them as harmless and will get through the loophole
of the Food Law, which leaves up to the producer to decide whether or
not he responds to the deviation. [3]
Dripping wate water
contaminated the chocolate crumb (a mixture of sugar, milk and cocoa)
during production at the plant in Marlbrook, Herefordshire.
Poor
layout of the factory and inadequate drainage and disinfection
equipment, and not having the EU hygiene rules Hazard Analysis and
Critical Control Point (HACCP) analysis in place are the cause of this
scandal.
Affected Cadbury products: [4]
Cadbury
Dairy Milk Turkish 250g; Cadbury Dairy Milk Caramel 250g; Cadbury Dairy
Milk Mint 250g; Cadbury Dairy Milk eight chunk; Cadbury Dairy Milk 1kg;
Cadbury Dairy Milk Button Easter Egg 105g; Cadbury Freddo 10p.
According
to bacteriologist Professor Hugh Pennington of Aberdeen University the
fat in chocolate actually preserves the salmonella from the normal
intestinal defences. Very few salmonellas cause an infection The
infection dose from chocolate is a thousand times smaller than eating
it from traditional sources like meats.
According
to the Food Standards Agency the presence of salmonella in ready-to-eat
foods such as chocolate is unacceptable at any level.
Serious situation of European food industry ethic
The
responsible head of Cadbury Sweppes has overlook serious problems of
the layout of the factory. This situation must have gone on for a long
time. The head of the company has knowingly failed to report and recall
contaminated products. This is a serious disruption of commitment to
ethic. While producing 97,000 tonnes of milk chocolate crumb every
year, the company placed financial costs over food safety, selling
chocolate with poisonous bacteria and disgusting waste water.
Serious situation of the official controls
It is an alarming loophole of the European food safety system and private certification auditings
that the Food authority in UK did not noticing poor layout of the
Cadbury factory during normal check ups. Stronger surveillance by food
authority of factories producing high fat and high sugar items are
necessary. Carelessness in cleaning and disinfection is frequent with
these produces because they do not present signs of spoilage, so other
products like meat or fresh produces do. UK food authority surveillance
is to be blame, at least in part, for the Cadbury Sweppes salmonella
scandal.
[1] FoodNavigator: Cadbury pleads guilty to all salmonella charges 04.07.2007
http://www.foodnavigator.com/news/ng.asp?n=77888&m=1fne704&c=nfuzqfgkdkribxo
[2]BBC NEWS: Cadbury salmonella scare probed 24.06.2007
http://news.bbc.co.uk/1/hi/uk/5112470.stm
[3]
EU: Regulation (EC) No 178/2002 of the European Parliament and of the
Council of 28 January2002 laying down the general principles and
requirements of food law, establishing the European Food
SafetyAuthority and laying down procedures in matters of food safety
http://eur-lex.europa.eu/pri/en/oj/dat/2002/l_031/l_03120020201en00010024.pdf
[4] UK Food Standards Agency: Cadbury recall update 1 August 2006
http://www.food.gov.uk/news/newsarchive/2006/aug/cadbury
Bacteriology
03.07.2007: New Zealand produces update on work related to Campylobacter [1]
As
concern around New Zealand’s high rates of campylobacteriosis
continues, the New Zealand Food Safety Authority (NZFSA) has put
together a report “A Background to Campylobacter”
which sets out, in easy-to-understand terms, the scientific research
that NZFSA has collated on Campylobacter in food and the practical
measures currently in place to contain it, as well as an update on what
is happening in this regard overseas.
Campylobacter
is naturally present throughout the environment - in water, on animals
(including birds and pets) as well as being found on meat and food
products.
While
different interventions may offer reductions in hazard levels at
certain points in the farm-to-fork continuum, it is a combination of
measures that is more likely to achieve the greatest reduction in risk
to consumers.
According
Steve Hathaway, Director of NZFSA, the agency is considering some
short-term measures that will decrease contamination rates in poultry.
However, the aim has always been to focus on not just removing the high
levels of the pathogen from the food chain, but to find ways to prevent
it getting there in the first place.
[1 ] NZFSA: New Zealand produces update on work related to Campylobacter
http://www.nzfsa.govt.nz/publications/news-current-issues/campylobacter.htm
International Agreements
03.07.2007: EFSA and FDA Strengthen Cooperation in Food Safety Science [1]
The
European Food Safety Authority (EFSA) and the U.S. Food and Drug
Administration (FDA) signed the first U.S./European agreement in the
area of assessing food safety risk. This is the first formal
international cooperation agreement EFSA has signed and the first
formal step in cooperation between the two bodies.
Food safety
knows no national boundaries and the food chain is today truly a global
one. Sharing data and knowledge across our two organisations is an
important first step in achieving food safety.
The agreement is
designed to facilitate the sharing of confidential scientific and other
information between EFSA and the FDA, such as methodologies to ensure
safety and wholesomeness of food A formal agreement ensures appropriate
protection of such confidential information under the applicable legal
frameworks in both the United States and the European Union.
[1] EFSA: EFSA and FDA Strengthen Cooperation in Food Safety Science
http://www.efsa.europa.eu/en/press_room/press_release/pr_fda.html
Nuclear Energy
3.07.2008: Germany on the difficult way of energy management [1]
The
Chancellor Merkel under the pressure of the lobby of the industry
prepares the way for a comeback of nuclear energy in Germany at the
Energy Summit in Berlin.
As highly capable to bring parties to a
deal together, Merkel will surely bring the opposition to an agreement
on this matter and will postpone the shut-down of nuclear power plants
for 2020 for more 20 years.
[1] Spiegel Online: Merkel Nudges for Nuclear Power Comeback
http://www.spiegel.de/international/germany/0,1518,492202,00.html
Inovations
03.07.2007: Production of probiotic culture [1]
Living
bacterial strains of probiotics will be produced using a new technique
which continuosly removes lactic acid during fermentation by
electrodialyses.
Lactic
acid limits the bacterial growth. Removig it from the system, as it is
being formed, improves yields and quality of the probiotic culture. The
Reverse Electro-Enhanced Dialysis (REED) system was developed by the
Danish firm Jurag Separation and can be combined with traditional or
bipolar membrane electro dialysis processes continuously changing the
direction of electrical current. It avoids thus fouling of the
membrane. The system is a continuous ion-exchange across selective
ion-exchange membranes without the use of resins.
[1] Jurag Separation: REED System
http://www.jurag.dk/index.asp
Labelling
03.07.2007: Mandatory nutrition labelling for fast food chains [1]
Food
regulators should should establish legislation requiring fast-food and
other chain restaurants to list calories, saturated plus trans fat,
carbohydrates, and sodium on printed menus, and just calories on menu
boards, where space is limited.
Without
clear, easy-to-use nutrition information, it's difficult to make
informed choices at chain restaurants. Otherwise how can you know that
a tuna fish salad sandwich has 50% more calories than a roast beef
sandwich? Or that a small chocolate milkshake at McDonald’s has more
calories than a Big Mac?
Although people eat out more than ever
before, few restaurants provide nutrition information. As a result, we
often are getting more calories, fat, and salt than we realize. This
can be particularly problematic for people who watch what they eat to
manage health conditions such as diabetes, high cholesterol, or high
blood pressure.
Restaurant labelling regulations would give
the citizens an important new tool to help us eat well and maintain a
healthy weight. It would provide information that would allow people to
take responsibility for their own health and make more informed
decisions for a significant and growing part of our diet. And limiting
the requirement to chain restaurants would not burden independent
restaurants. Nutrition labelling would be a clever move for McDonnald´s
and other fast food chains to improve its bad image as unhealthy food
[1]CSPI: Why Menu Labeling Is Important
http://www.cspinet.org/nah/vlog/menulabeling.html
2.07.2007: Chromium (VI) in leather clothing and shoes problematic for allergy sufferers! [1]
BfR recommends strictly limiting levels in leather goods
Studies
by the regulatory authorities of the federal states reveal that many
leather goods like gloves, shoes or watch straps which come into direct
contact with the skin contain high levels of chromium (VI). Hexavalent
chromium is a strong allergen and it can lead to allergic skin
reactions like contact eczema in sensitised individuals.
Clinical picture of Chromium VI allergy
The
typical clinical picture is allergic contact eczema on the areas of the
skin which come into contact with chromium (VI). Clothing which has
direct skin contact should not, therefore, contain any chromium (VI).
Even
the lowest levels of chromium (VI) in leather are sufficient to trigger
an allergic reaction in hypersensitive individuals. At a level of 5 mg
per kg leather half of the sensitised individuals already manifested
allergic skin reactions like for instance contact eczema. The only
effective protection for them against skin disorders is to avoid any
contact with products containing chromium (VI).
Regulation
At
the present time the chromium content of leather goods has not been
regulated by law apart from industrial safety provisions. In 2006 a DIN
standard stipulated that the chromium (VI) levels in work gloves must
be below the detection limit of three milligrams chromium (VI) per
kilogram leather.
In more than 50% of leather goods such as gloves
and shoes and other ware which is worn close to the skin like watch
straps, chromium IV was found up to 10 mg/kg.
Tanning processing of hides
Normally,
chromium (III) sulphate is used as the tanning agent. Chromium (VI)
either appears as an impurity in the tanning substance or it is formed
through oxidation from chromium (III) in the ensuing processing stages.
There are methods available which can considerably reduce the chromium
levels in the leather or even completely remove the chromium (VI).
Chromium-free tanning methods are another option.
Chromium free leather processing or mandatory declaration
The
BfR believes that leather goods that come into contact with skin should
not, if possible, contain any chromium (VI). At the very least, the
levels should be reduced as far as possible. At the present time, the
analytical detection limit is approximately 3 mg per kg leather. The
studies by the regulatory authorities and the standard for work gloves
prove that this limit can be complied with by using the corresponding
technologies.
On
the other hand, mandatory declaration could help allergy sufferers to
consciously avoid purchasing products containing chromium (VI).
[1]
Federal Institut for Risk Assessment: Chromium (VI) in leather clothing
and shoes problematic for allergy sufferers! 10/2007, 02.07.2007
http://www.bfr.bund.de/cms5w/sixcms/detail.php/9575
Innovations
02.07.2007: Research on exposure and toxicological/ecotoxicological effects of nanoparticles[1]
Nanotechnology:
describes the manufacture, examination and use of structures, molecular
materials, inner interfaces with at least one critical dimension below
100 nm.
Nanoparticles:
are understood as being engineered granular particulates, tubes and
fibres with a diameter <100 nm (including their agglomerates and
aggregates) for at least one dimension which have been shown to have
low solubility in biological systems. Based on knowledge acquired so
far these particles are particularly toxicologically relevant.
It
is expected that the importance of nanotechnology will continue to grow
and that workers and consumers will be increasingly exposed to it.
According to present knowledge, the insoluble and poorly soluble nanoparticles are particularly toxicologically relevant.
As the exposure of humans and the environment as well as the toxicological and
ecotoxicological properties and risks have not yet been characterised, there is a general
need to conduct further studies and to close the gaps in knowledge through research and
assessment activities.
Chemical legislation
Chemical
legislation does not specify any obligation to test (e.g. toxicological
studies) or assess widespread nanoparticles like for instance titanium
dioxide, zinc oxide, iron oxide, silicon dioxide or "carbon black" that
involve a nanoscale modification to a high production volume existing
substance with the same CAS Number
Nanoparticles as food additives
Up
to now there has been no specific regulation for nanoparticles in the
areas food, consumer goods or cosmetics. For instance, no particle
sizes are stipulated in the purity criteria for the approved food
additives silicon dioxide (E551) and titanium dioxide (E171).
Public acceptance of nanotechnology
In order to promote the acceptance of nanotechnology by the public, accompanying social
scientific research should be conducted and there should be transparent discussion of the
risks with all interested stakeholders in society (cf. for instance http://www.dialognanopartikel.
de/downloads.html).
The Goal of the research
The main goal of this research strategy is to structure the research area, to develop the
measurement of particles (metrology), to record information on exposure and
toxicological/ecotoxicological effects, to promote the development of a sophisticated risk
related test and assessment strategy, safety and risk management
[1]
Bundesanstalt für Arbeitsschutz und Arbeitsmedizin: Nanotechnology:
Health and Environmental Risks of Nanoparticles - Research strategy -
http://www.bfr.bund.de/cm/220/nanotechnologie_gesundheits_und_umweltrisiken_von
_nanopartikeln_forschungsstrategie_entwurf.pdf
Allergies
02.07.2007: People who are allergic to birch pollen may react hypersensitively to soy products too [1]
People
who are allergic to birch pollen react also to peanuts, hazelnuts,
apples, strawberries, carrots, celery and pulses. Certain proteins in
these foods are so similar in structure to the protein in birch pollen
that triggers the allergy that the body manifests such cross allergy.
According to Professor Dr. Dr. Andreas Hensel, President of the Federal
Institute for Risk Assessment (BfR).BfR stresses that such cross
allergy with soy products are possible.
The trigger of the cross
allergy to soy is a protein (the PR-10 stress protein Gly m 4), which
is found in soybeans and is similar in structure to the birch pollen
allergen Bet v 1.
The activity of the soy protein Gly m 4 can be
dampened through heating to high temperatures or the protein itself can
be destroyed. Allergy sufferers can, therefore, eat most products with
soy ingredients which were heated during processing without suffering
any health disorders.
BfR
does not believe that it makes sense for the packaging of soy products
to carry additional warnings for allergy sufferers. Not all soy
products contain the protein Gly m4 that triggers the allergy. At the
present time, no official detection method is available. Furthermore,
besides soy numerous other foods such as peanuts could trigger severe
cross allergy in people with a birch pollen allergy. They include
apples, hazelnuts, and celery. Warnings on soy products would not,
therefore, protect people who are allergic to birch pollen from a cross
allergy.
[1] Federal Institute for Risk Assessment: People who
are allergic to birch pollen may react hypersensitively to soy products
too. 09/2007, 28.06.2007
http://www.bfr.bund.de/cms5w/sixcms/detail.php/9553
Innovations
01.07.2007 Seed flours derived from Chardonnay grapes and black raspberries improving stability of fish oil. [1]
Fish
oil is highly susceptible to oxidation, resulting in a fishy taste and
smell. Aside of microencapsulation Marla Luther and colleagues 2007
suggest ethanol extracts of Chardonnary grape and black raspberry seed
flours to suppress lipid oxidation and rancidity development of omega-3
fatty acids in fish oil.
The black raspberry seed flour
extract also exhibited bacteriocidal activity against E. coli and
inhibited the growth of Listeria monocytogenes at a level of 165 μg
seed flour equivalents/mL.
According to the authors, the flour of
these seeds may become a natural preservative and antioxidant omega-3
fatty acids added to a variety of canned foods, bread, dairy products
and confectioneries.
[1] Luther, Marla; Parry, John;
Moore, Jeffrey; Meng, Jianghong; Zhang, Yifan; Cheng, Zhihong; Yu,
Liangli (Lucy): Inhibitory effect of Chardonnay and black raspberry
seed extracts on lipid oxidation in fish oil and their radical
scavenging and antimicrobial properties. Journal of Food Chemistry
(Elsevier) Doi: 10.1016/j.foodchem.2007.01.034
Allergies
1.07.2007: Lactose intolerance [1] [2]
Lactose
intolerance is caused by a shortage of the enzyme lactase, which is
produced by the cells that line the small intestine. Lactase breaks
down milk sugar into two simpler forms of sugar called glucose and
galactose, which are then absorbed into the bloodstream. Lactose
intolerance occurs in about 25% of people in Europe; 50-80% of people
of Hispanic origin, people from south India, black people, and
Ashkenazi Jews; and almost 100% of people in Asia and American
Indians.Lactose intolerance is a problem caused by the digestive system.
Cow'milk intolerance
Symptoms are often the same of lactose intolerace. Cow's milk is an allergic reaction triggered by the immune system.
Symptoms of lactose intolerance
Common
symptoms, which range from mild to severe, include nausea, cramps,
bloating, gas, and diarrhea. Symptoms begin about 30 minutes to 2 hours
after eating or drinking foods containing lactose. The severity of
symptoms depends on many factors, including the amount of lactose a
person can tolerate and a person’s age, ethnicity, and digestion rate.
Diagnosis
There
are sophisticated tests for the diagnosis of lactase malabsorption,like
the Lactose Tolerance Test, the Hydrogen Breath Test and the Stool
Acidity Test. However, the diagnosis can be made easily on the basis of
clinical history. Improvement in symptoms after eliminating such foods
and worsening when they are reintroduced confirms the diagnosis.
Classification of lactase deficiency and dietary measures
No treatment can improve the body's ability to produce lactase, but symptoms can be controlled through diet.
Primary lactase deficiency
Lactase
concentration after birth and declines after weaning. In primary
lactase deficiency lactase concentrations declines at the age of
weaning. It is associated with a recessive inherited trait, different
between Europeans and Africans.
Treatment: In
primary lactase deficiency the development of symptoms depends on how
much lactose needs to be ingested before the available lactase is
saturated. Thus, most people with primary lactase deficiency can ingest
up to 240 ml of milk (12 g of lactose) without developing symptoms.
It
may help to divide daily milk intake into several small portions and to
take it with other foods. Yoghurt, curds, and cheeses are better
tolerated, because lactose is partially hydrolysed by bacteria during
their preparation and gastric emptying is slower as these products have
a thicker consistency.
People with lactose intolerance should be
encouraged to gradually increase their intake of milk- this causes
changes in the intestine that permit higher milk intake.
Milk-cereal
mixtures delay the entry of lactose into the intestine, permitting
better absorption. Since these are cheap and easily prepared at home,
their use should be promoted.
Secondary lactase deficiency
It
results from injury to the small bowel mucosal brush border secondary
to viral or non-viral intestinal infection, common in developing
countries. Treatment is directed at the underlying cause.
Cogenital lactase deficiency
It is characterized by minimal or absent lactase immediately after birth. It is a rare disorder.
Developmental lactase deficiency
It
occurs in premature infants, because lactase levels do not increase
until the third trimester of a woman’s pregnancy. The deficiecy,
however, rapidly improves as the intestinal mucosa matures.
Lactase enzyme tablets
For
those who react to very small amounts of lactose or have trouble
limiting their intake of foods that contain it, the lactase enzyme is
available without a prescription to help people digest foods that
contain lactose. The tablets are taken with the first bite of dairy
food. Lactase enzyme is also available as a liquid. Adding a few drops
of the enzyme makes lactose more digestible for people with lactose
intolerance.
Young children and infants with lactase deficiency
should not consume lactose-containing formulas or foods until they are
able to tolerate lactose digestion. Most older children and adults do
not have to avoid lactose completely, but people differ in the amounts
and types of foods they can handle.
Children with infective diarrhoea [2]
Short
periods of lactose intolerance are common after episodes of infective
diarrhoea and may prolong the diarrhoeal illness. a meta-analysis has
shown that most children with acute diarrhoea can safely continue to
receive breast or undiluted animal milk Giving milk rather than yoghurt
during acute diarrhoea is associated with higher milk intake and better
weight gain and does not increase diarrhoea. Milk-cereal mixtures given
at frequent intervals (nearly 2 g/kg/day of lactose or 40 ml/kg/day of
milk) were well tolerated by most children with persistent diarrhoea.
Non-responders
will benefit from reducing lactose intake below their current threshold
of tolerance, followed by long term steps directed at improving
adaptation of the intestine.
Recent research shows that yogurt
with active cultures may be a good source of calcium for many people
with lactose intolerance. Even though yogurt is fairly high in lactose,
the bacterial cultures used to make it produce some of the lactase
enzyme required for proper digestion.[1]
Daily Calcium intake
The
Institute of Medicine released a report listing the requirements for
daily calcium intake. How much calcium a person needs to maintain good
health varies by age group. Recommendations from the report are shown
in the following table. [3] Age group Amount of calcium to consume daily, in milligrams (mg) 0–6 months 400 mg 6–12 months 600 mg 1–5 years 800 mg 6–10 years 1.200 mg 11–24 years 1,200–1,500 mg 19–50 years 1,000 mg 51–70+ years 1,500 mg
In addition, pregnant and nursing women need between 1,200 and 1,500 mg of calcium daily
Calcium sources
Many
non-dairy foods are high in calcium, including dark green vegetables
such as broccoli, or fish with soft, edible bones, such as salmon and
sardines.
Calcium and Lactose in Common Foods [4]
Vegetables Calcium Content Lactose Content Dairy Products Calcium content Lactose Content Soymilk, fortified, 1 cup 200–300 mg 0 Yogurt, plain, low-fat, 1 cup 415 mg 5 g Sardines, with edible bones, 3 oz. 270 mg 0 Milk, reduced fat, 1 cup 295 mg 11 g Salmon, canned, with edible bones, 3 oz. 205 mg 0 Swiss cheese, 1 oz. 270 mg 1 g Broccoli, raw, 1 cup 90 mg 0 Ice cream, 1/2 cup 85 mg 6 g Orange, 1 medium 50 mg 0 Cottage cheese, 1/2 cup 75 mg 2-3 g Pinto beans, 1/2 cup 40 mg 0 Tuna, canned, 3 oz. 10 mg 0 Lettuce greens, 1/2 cup, 10 mg 0
Yoghurt
with active cultures may be a good source of calcium for many people
with lactose intolerance. Even though yoghurt is fairly high in
lactose, the bacterial cultures used to make it produce some of the
lactase enzyme required for proper digestion.
Clearly, many foods
can provide the calcium and other nutrients the body needs, even when
intake of milk and dairy products is limited. However, factors other
than calcium and lactose content should be kept in mind when planning a
diet. Some vegetables that are high in calcium (Swiss chard, spinach,
and rhubarb, for example) are not listed in the chart because the body
cannot use the calcium they contain because these foods also contain
substances called oxalates, which stop calcium absorption.
Calcium
is absorbed and used only when there is enough vitamin D in the body. A
balanced diet should provide an adequate supply of vitamin D from
sources such as eggs and liver. Sunlight also helps the body naturally
absorb vitamin D, and with enough exposure to the sun, food sources may
not be necessary.
Hidden lactose
Although
milk and foods made from milk are the only natural sources of lactose,
it is often added to prepared foods. People with very low tolerance for
lactose should know about the many food products that may contain even
small amounts of lactose, such as:
Bread and other baked
goods, processed breakfast cereals, instant potatoes, soups, and
breakfast drinks, margarine, lunch meats (other than kosher), salad
dressings, candies and other snacks, mixes for pancakes, biscuits, and
cookies, powdered meal-replacement supplements
Some products labeled
non-dairy, such as powdered coffee creamer and whipped toppings, may
actually include ingredients that are derived from milk and therefore
contain lactose such as whey, curds, milk by-products, dry milk solids,
and non-fat dry milk powder. They contain lactose.
[1] National Digestive Diseases Information Clearinghouse (NDDIC): Lactose intolerance
http://digestive.niddk.nih.gov/ddiseases/pubs/lactoseintolerance/
[2]
Bhatnagar, Shinjini; Aggarwal, Rakesh: Lactose intolerance is common
and can be diagnosed clinically and treated with simple dietary
measures.BMJ 2007;334:1331-1332 (30 June),
doi:10.1136/bmj.39252.524375.80
http://www.bmj.com/cgi/content/full/334/7608/1331
[3] Institute of Medicine: Dietary Reference Intakes for Calcium, Phosphorus, Magnesium, Vitamin D, and Fluoride
http://www.iom.edu/?id=12704
[4]
Adapted from Manual of Clinical Dietetics. 6th ed. American Dietetic
Association, 2000; and Soy Dairy Alternatives. Available at: www.soyfoods.org.
