期刊
BIORESOURCE TECHNOLOGY
卷 114, 期 -, 页码 399-405出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2012.02.139
关键词
Bioethanol production; Zwitterionic surfactants; Spent mushroom compost; Agaricus bisporus; Mushroom cultivation
Spent mushroom compost (SMC), a byproduct of commercial mushroom cultivation, poses serious environmental problems that have hampered the growth of this important agro-industry. In an effort to develop new applications for SMC. we explored its use as a feedstock for bioethanol production. SMC constitutes approximately 30% w/w polysaccharides, 66% of which is glucan. Following dilute-acid pretreatment and enzymatic hydrolysis, both in the presence of PEG 6000, 97% of glucan and 44% of xylan in SMC were converted into the corresponding monosaccharides. Incorporation of PEG 6000 reduced the cellulase requirement by 77%. Zwittergent 3-12 and 3-14 also significantly increased the efficacy of acid pretreatment and enzymatic hydrolysis. The use of SMC in bioethanol production represents a potential mitigation solution for the critical environmental issues associated with the stockpiling of the major byproduct of the mushroom industry. (C) 2012 Elsevier Ltd. All rights reserved.
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