Bioethanol from lignocellulosic materials has a potential to become an important sustainable fuel in the coming years. It can substitute fossil fuels needed in the transportation sector, and fuel ethanol is already produced in vast amounts. Ethanol can be produced from fermentable sugars, e.g.C6-glucose derived from starch or cellulose from any lignocellulosic biomass, for example, agricultural waste or forestresidues. Lignocellulose usually consists of cellulose, hemicellulose andlignin. Cellulose and hemicellulose can be changed to sugars by biological and chemical conversion, and the sugars can be fermented to ethanol or other valuable chemicals. However, lignin is an inhibitor of the enzyme reaction, as it not only prevents cellulose from forming cellulose but also adsorbs enzyme, making it inactivefor cellulose hydrolysis
Bioethanol from lignocellulosic materials has a potential to become an important sustainable fuel in the coming years. It can substitute fossil fuels needed in the transportation sector, and fuel ethanol is already produced in vast amounts. Ethanol can be produced from fermentable sugars, e.g.C6-glucose derived from starch or cellulose from any lignocellulosic biomass, for example, agricultural waste or forestresidues. Lignocellulose usually consists of cellulose, hemicellulose andlignin. Cellulose and hemicellulose can be changed to sugars by biological and chemical conversion, and the sugars can be fermented to ethanol or other valuable chemicals. However, lignin is an inhibitor of the enzyme reaction, as it not only prevents cellulose from forming cellulose but also adsorbs enzyme, making it inactivefor cellulose hydrolysis
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