Fermentation of pretreated sugarcane bagasse hemicellulose hydrolysate to ethanol by Pachysolen tannophilus.
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).
Cheng
Ke-Ke
KK
Division of Green Chemistry and Technology, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, PR China.
Ge
Jing-Ping
JP
Zhang
Jian-An
JA
Ling
Hong-Zhi
HZ
Zhou
Yu-Jie
YJ
Yang
Ming-De
MD
Xu
Jing-Ming
JM
D002482:Cellulose / Q000378:metabolism*; D000431:Ethanol / Q000378:metabolism*; D005285:Fermentation; D006868:Hydrolysis; D011134:Polysaccharides / Q000378:metabolism*; D004718:Saccharomycetales / Q000378:metabolism*; D031786:Saccharum / Q000378:metabolism*; D013997:Time Factors
D011134:Polysaccharides; D000431:Ethanol; C007916:hemicellulose; D002482:Cellulose; C027433:bagasse