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Your search keyword '"Ethanol fermentation"' showing total 2 results
2 results on '"Ethanol fermentation"'

1. Ethanol production from high cellulose concentration by the basidiomycete fungus Flammulina velutipes

Author

Maehara, Tomoko, Ichinose, Hitomi, Furukawa, Takanori, Ogasawara, Wataru, Takabatake, Koji, and Kaneko, Satoshi

Subjects
*ETHANOL, *CELLULOSE, *BASIDIOMYCETES, *FLAMMULINA velutipes, *CELLOBIOSE, *BAGASSE
Abstract

Abstract: Ethanol production by Flammulina velutipes from high substrate concentrations was evaluated. F. velutipes produces approximately 40–60 g l−1 ethanol from 15 % (w/v) d-glucose, d-fructose, d-mannose, sucrose, maltose, and cellobiose, with the highest conversion rate of 83 % observed using cellobiose as a carbon source. We also attempted to assess direct ethanol fermentation from sugarcane bagasse cellulose (SCBC) by F. velutipes. The hydrolysis rate of 15 % (w/v) SCBC with commercial cellulase was approximately 20 %. In contrast, F. velutipes was able to produce a significant amount of ethanol from 15 % SCBC with the production of β-glucosidase, cellobohydrolase, and cellulase, although the addition of a small amount of commercial cellulase to the culture was required for the conversion. When 9 mg g−1 biomass of commercial cellulase was added to cultures, 0.36 g of ethanol was produced from 1 g of cellulose, corresponding to an ethanol conversion rate of 69.6 %. These results indicate that F. velutipes would be useful for consolidated bioprocessing of lignocellulosic biomass to bioethanol. [Copyright &y& Elsevier]

Published
2013
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2. Ethanol production from high cellulose concentration by the basidiomycete fungus Flammulina velutipes

Author

Wataru Ogasawara, Takanori Furukawa, Koji Takabatake, Tomoko Maehara, Hitomi Ichinose, and Satoshi Kaneko

Subjects
biology, Ethanol, Hydrolysis, Lignocellulosic biomass, Cellulase, Cellobiose, Ethanol fermentation, biology.organism_classification, chemistry.chemical_compound, Industrial Microbiology, Infectious Diseases, chemistry, Biochemistry, Fermentation, Genetics, biology.protein, Ethanol fuel, Food science, Cellulose, Ecology, Evolution, Behavior and Systematics, Flammulina
Abstract

Ethanol production by Flammulina velutipes from high substrate concentrations was evaluated. F. velutipes produces approximately 40-60 g l(-1) ethanol from 15% (w/v) D-glucose, D-fructose, D-mannose, sucrose, maltose, and cellobiose, with the highest conversion rate of 83% observed using cellobiose as a carbon source. We also attempted to assess direct ethanol fermentation from sugarcane bagasse cellulose (SCBC) by F. velutipes. The hydrolysis rate of 15% (w/v) SCBC with commercial cellulase was approximately 20%. In contrast, F. velutipes was able to produce a significant amount of ethanol from 15% SCBC with the production of β-glucosidase, cellobohydrolase, and cellulase, although the addition of a small amount of commercial cellulase to the culture was required for the conversion. When 9 mg g(-1) biomass of commercial cellulase was added to cultures, 0.36 g of ethanol was produced from 1 g of cellulose, corresponding to an ethanol conversion rate of 69.6%. These results indicate that F. velutipes would be useful for consolidated bioprocessing of lignocellulosic biomass to bioethanol.

Published
2012

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