Ethanol production in an immobilized-cell reactor

Autor:	James L. Gaddy, Oliver C. Sitton
Rok vydání:	1980
Předmět:	Chromatography Bioengineering Xylose Furfural Applied Microbiology and Biotechnology Yeast Hydrolysate Hydrolysis chemistry.chemical_compound chemistry Biochemistry Cellulosic ethanol Ethanol fuel Fermentation Biotechnology
Zdroj:	Biotechnology and Bioengineering. 22:1735-1748
ISSN:	1097-0290 0006-3592
DOI:	10.1002/bit.260220814
Popis:	Ethanol is produced from cellulosic material such as corn stover by treating the cellulosic material in a first hydrolysis stage with a dilute acid solution to hydrolyze pentosans to xylose, separating solids from the resultant hydrolysate, treating the solids in a second hydrolysis stage with a concentrated acid solution to hydrolyze hexosans to glucose, and fermenting the glucose to ethanol by passing a solution of the glucose over a fixed film of yeast prepared by attaching yeast with a polyfunctional agent to a proteinaceous material coated on a solid support. The use of a first hydrolysis stage avoids the production of furfural which is toxic and inhibits yeast fermentation. Xylose produced from the first stage may also be fermented to ethanol with the fixed film of yeast.
Databáze:	OpenAIRE
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