Invention harnesses oxygen-trapping power of iron
By Sid Perkins
Web edition: May 28, 2013
Iron-ing out the bugs
Carolyn Jons, 15 , has developed a new type of plastic bag for foods. Its "nano-iron" helps keep microbes from spoiling leftovers.
Credit: Patrick Thornton, SSP
Food doesn?t stay fresh forever, even in a refrigerator. Fuzzy mold can grow on fruit, veggies and other items even if they?re kept in a sealed container. But a 15-year-old inventor now has developed a new type of resealable bag that can keep food fresh longer. It relies on a pouch of powder that chemically sucks oxygen out of the bag. And this could keep fungi and even some food-poisoning germs from growing.
Carolyn Jons of Eden Prairie High School in Eden Prairie, Minn., presented her results May 13 in Phoenix, Ariz., at the Intel International Science & Engineering Fair. The Society for Science & the Public, which created the fair in 1950, still runs the competition. (SSP also publishes Science News?and?Science News for Kids.)?
Visit the new Science News for Kids website and read the full story: New bag keeps food fresh longer.
Source: http://www.sciencenews.org/view/generic/id/350681/title/FOR_KIDS_New_bag_keeps_food_fresh_longer
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