期刊
JOURNAL OF BIOTECHNOLOGY
卷 103, 期 3, 页码 273-280出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0168-1656(03)00123-8
关键词
white rot fungi; Ceriporiopsis subvermispora; ethanolysis; SSF; ethanol fermentation
Ethanol was produced by simultaneous saccharification and fermentation (SSF) from beech wood chips after bioorganosolve pretreatments by ethanolysis and white rot fungi, Ceriporiopsis subvermispora, Dichomitus squalens, Pleurotus ostreatus, and Coriolus versicolor. Beech wood chips were pretreated with the white rot fungi for 2-8 weeks without addition of any nutrients. The wood chips were then subjected to ethanolysis to separate them into pulp and soluble fractions (SFs). From the pulp fraction (PF), ethanol was produced by SSF using Saccharomyces cerevisiae AM12 and a commercial cellulase preparation, Meicelase, from Trichoderma viride. Among the four strains, C subvemzispora gave the highest yield on SSF. The yield of ethanol obtained after pretreatment with C subvermispora for 8 weeks was 0.294 g g(-1) of ethanolysis pulp (74% of theoretical) and 0.176 g g(-1) of beech wood chips (62% of theoretical). The yield was 1.6 times higher than that obtained without the fungal treatments. The biological pretreatments saved 15% of the electricity needed for the ethanolysis. (C) 2003 Elsevier B.V. All rights reserved.
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