GRABER: Scientists at the U.S. Department of Agriculture have developed a new "plastic" wrap made entirely out of fruits and vegetables. The simple recipe: Take the fruit or vegetable of your choice, puree, add water, spread it paper thin, and let it dry. Fruits and vegetables contain long chain molecules called polysaccharides, which bond to create a thin film when the puree and water mixture dries. The sugars in the produce help make the wrap flexible. In low humidity, the fruit or veggie wrap keeps out as much oxygen as plastic wrap does, protecting food from spoiling. This technique could provide a new use for produce now too small to be canned or sold fresh. And the film retains the color and the flavor of the original material. So as Marie Antoinette might say: Let them eat cake, and the wrapper, too. That's this week's technology update. I'm Cynthia Graber.
(Music up and under)
CURWOOD: And you're listening to Living on Earth. You can hear our program any time on our Web site. The address is www.loe.org. That's www.loe.org. And while you're online, send your comments to us at email@example.com. Once again, firstname.lastname@example.org. Our postal address is 8 Story Street, Cambridge, Massachusetts 02138. And you can reach our listener line at 800-218-9988. That's 800-218-9988. CDs, tapes, and transcripts are $15.
(Music up and under)
Living on Earth wants to hear from you!
P.O. Box 990007
Boston, MA, USA 02199
Donate to Living on Earth!
Living on Earth is an independent media program and relies entirely on contributions from listeners and institutions supporting public service. Please donate now to preserve an independent environmental voice.
Major funding for Living on Earth is provided by the National Science Foundation.
Kendeda Fund, furthering the values that contribute to a healthy planet.
The Grantham Foundation for the Protection of the Environment: Committed to protecting and improving the health of the global environment.
Contribute to Living on Earth and receive, as our gift to you, an autographed copy of one of Mark Seth Lender's extraordinary hummingbird photographs. Follow the link to see Mark's current collection of photographs.