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学科主题物理化学
Vitalized yeast with high ethanol productivity
Liu, Xiumei; Xu, Wenjuan; Zhang, Chao; Yan, Peifang; Jia, Songyan; Xu, Zhanwei; Zhang, Z. Conrad; Zhang ZC(张宗超)
刊名RSC ADVANCES
2014
DOI10.1039/c4ra08809c
4期:94页:52299-52306
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Multidisciplinary
研究领域[WOS]Chemistry
关键词[WOS]SACCHAROMYCES-CEREVISIAE ; FERMENTATION PROCESSES ; ALCOHOL PRODUCTION ; FUEL ALCOHOL ; WHEAT MASHES ; SUPPLEMENTATION ; GLUCOSE ; SUGAR
英文摘要Fuel ethanol is an attractive alternative to fossil-based fuels or fuel additives. Very-high-gravity (VHG) ethanol fermentation is a promising technology to reduce energy consumption in distillation. However, yeast cells subjected to a high concentration of ethanol and osmotic stress readily lose cell viability, resulting in reduced ethanol productivity. Here we report the beneficial effect of fully water-soluble polyethylene glycol (PEG) in chemically exo-protecting yeast cells during fermentation, resulting in largely boosted cell vitality and tolerance to high ethanol concentration. The final ethanol concentration and the yeast cell viability were substantially increased as compared to PEG-free fermentation. The recovered exo-protected yeast was further demonstrated to continue to deliver superior bio-catalytic performance in subsequent fermentations over that recovered from PEG-free broth. Furthermore, the water-soluble PEG was readily recycled for reuse after distillation of ethanol.
语种英语
WOS记录号WOS:000344389000064
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/144072
专题中国科学院大连化学物理研究所
通讯作者Zhang ZC(张宗超)
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, State Key Lab Catalysis, Dalian, Peoples R China
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GB/T 7714
Liu, Xiumei,Xu, Wenjuan,Zhang, Chao,et al. Vitalized yeast with high ethanol productivity[J]. RSC ADVANCES,2014,4(94):52299-52306.
APA Liu, Xiumei.,Xu, Wenjuan.,Zhang, Chao.,Yan, Peifang.,Jia, Songyan.,...&张宗超.(2014).Vitalized yeast with high ethanol productivity.RSC ADVANCES,4(94),52299-52306.
MLA Liu, Xiumei,et al."Vitalized yeast with high ethanol productivity".RSC ADVANCES 4.94(2014):52299-52306.
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