Scientists are using anti-microbial extracts from the herb to
create a plastic wrapper for meat and cheese.
The chemicals slowly ooze out from the wrapper - and extend the
product's shelf-life by killing off bacteria such as E. coli and
listeria which can cause severe food poisoning.
New Scientist magazine reports that tests have shown the new
wrapping can keep bacteria at bay in Cheddar cheese for a week
longer than ordinary packaging.
The wrapper has been developed by scientists at the Technion
Institute of Technology in Haifa, Israel, and the Victoria
University in Melbourne, Australia.
It is laced with two chemicals extracted from basil: an ether
called methyl chavicol and the alcohol linalool.
Both contain compounds that attack and destroy cell walls, and
have been shown to be active against eight types of bacteria.
Japanese horseradish
Wasabi was tested and failed
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The idea of incorporating natural substances in food wrappings
has been tried before.
The Japanese used extracts from a potent horseradish, wasabi.
However, the project had to be scrapped after complaints that the
food was tainted by the flavour of horseradish.
The new product does not have this problem, because the levels of
chavicol and linalool used are too low to impart a basil taste to
the food.
Lead researcher Dr Joseph Miltz said one of the advantages of the
new wrapping was that because the active chemicals came from a
natural source they were less likely to degrade into harmful
by-products.
However, Dr Joseph Hotchkiss, of the Department of Food Science
at Cornell University in New York, said that this did not
necessarily make them safer than artificial additives.
A spokeswoman for the Health Protection Agency said: "Whilst the
HPA welcomes any initiative to control microbial contamination in
specific situations, it should be remembered that use of
antimicrobial substances cannot and should not be a substitute for
good basic hygiene.
"With regard to the use of antimicrobial products for kitchen
hygiene, adherence to basic hygiene rules is likely to be just as
effective in providing a hygienic environment as using antimicrobial
products."