Designing Edible Films from Milk and Biofuel Byproducts
June 8, 2007| |
Scientists at the United States Department of Agriculture Agricultural Research Service (ARS) have developed a method that uses byproducts, not only from dairy processing, but also from biofuel production, to create biodegradable protective films. The water-resistant film was made from the milk protein casein, water, and glycerol, a byproduct of biofuel production. Carbon dioxide was used to isolate dairy proteins from milk, instead of harsh chemicals or acids. Using CO2 makes the film more water-resistant and biodegradable. The resulting food coatings are glossy, transparent and completely edible.
The news article is available at http://www.ars.usda.gov/News/docs.htm?docid=1261.
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