Gut Reaction: Cow Stomach Holds Key To Turning Corn Into Biofuel
ScienceDaily (Apr. 10, 2008) — An enzyme from a microbe that lives inside a cow's stomach is the key to turning corn plants into fuel, according to Michigan State University scientists.
The enzyme that allows a cow to digest grasses and other plant fibers can be used to turn other plant fibers into simple sugars. These simple sugars can be used to produce ethanol to power cars and trucks.

MSU scientists have discovered a way to grow corn plants that contain this enzyme. They have inserted a gene from a bacterium that lives in a cow's stomach into a corn plant. Now, the sugars locked up in the plant's leaves and stalk can be converted into usable sugar without expensive synthetic chemicals.

"The fact that we can take a gene that makes an enzyme in the stomach of a cow and put it into a plant cell means that we can convert what was junk before into biofuel," said Mariam Sticklen, MSU professor of crop and soil science. She is presenting at the 235th national American Chemical Society meeting in New Orleans April 9. The work also is presented in the "Plant Genetic Engineering for Biofuel Production: Towards Affordable Cellulosic Ethanol" in the June edition of Nature Review Genetics.

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