Nano-scale additives fight food pathogens

They can induce lethal structural damage to food poisoning microbes.

By Janet Raloff, 11:54 AM July 19, 2010

CHICAGO. Nano products are all the rage, even in food science. Here, at the Institute of Food Technologists’ annual meeting, on July 18, scientists described dramatic success in fighting food-poisoning bacteria by doctoring foods or their packaging with microbe-killing nanoparticles – sometimes along with natural anti-bacterial agents.

The nano of interest: Zinc oxide. When particles of this compound are very small, they exhibit properties not seen with bigger ones. Specifically, they appea...

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