Fermentation of pretreated sugarcane bagasse hemicellulose hydrolysate to ethanol by <Emphasis Type="Italic">Pachysolen tannophilus</Emphasis> |
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Authors: | Ke-Ke Cheng Jing-Ping Ge Jian-An Zhang Hong-Zhi Ling Yu-Jie Zhou Ming-De Yang Jing-Ming Xu |
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Institution: | (1) Division of Green Chemistry and Technology, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, P.R. China;(2) Key Laboratory of Microbiology, College of Life Science, Heilongjiang University, Harbin, 150080, P.R. China |
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Abstract: | Sugarcane bagasse hemicellulose hydrolysates, pretreated by either over-liming or electrodialysis and, supplemented with nutrient
materials, were fermented to ethanol using Pachysolen tannophilus DW06. Compared with detoxification by over-liming, detoxification by electrodialysis decreased the loss of sugar and increased
the acetic acid removal, leading to better fermentability. A batch culture with electrodialytically pretreated hydrolysate
as substrate was developed giving 21 g ethanol l−1 with a yield of 0.35 g g−1 sugar and productivity of 0.59 g l−1 h−1. |
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Keywords: | Ethanol Fermentation Hydrolysate Pachysolen tannophilus Sugarcane bagasse |
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