New fuels: Biofuels: A more economical process for making ethanol from non-food sources

Published: June 10, 2010, 2 p.m.

Scientists in Wisconsin are reporting discovery of a way to lower the cost of converting wood, corn stalks and leaves, switch grass, and other non-food biomass materials into ethanol fuel. The process reduces amounts of costly enzymes needed to break down tough fibrous cellulose matter in biomass for fermentation into alcohol.

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