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Full-Text Articles in Life Sciences
Production Of 2,3-Butanediol By Enterobacter Cloacae From Corncob-Derived Xylose, Cuiying Zhang, Wei Li, Dongsheng Wang, Xuewu Guo, Lijuan Ma, Dongguang Xiao
Production Of 2,3-Butanediol By Enterobacter Cloacae From Corncob-Derived Xylose, Cuiying Zhang, Wei Li, Dongsheng Wang, Xuewu Guo, Lijuan Ma, Dongguang Xiao
Turkish Journal of Biology
During the process of industrial production of biofuels and biochemicals from lignocellulosic biomass, large amounts of waste byproducts rich in xylose are generated, resulting in excessive wastage of natural resources and environmental pollution. In this work, xylose solution from corncob hydrolysate was utilized to produce 2,3-butanediol (2,3-BD), using the strain Enterobacter cloacae CICC 10011 to improve the utilization rate of hemicellulose and reduce environmental pollution. 2,3-BD fermentation conditions were subsequently developed. Xylose solution and (NH4)2HPO4, selected with the Plackett-Burman experiment, were determined as significant independent variables to conduct a response surface experiment. With the optimized medium, 50.02 g/L 2,3-BD production …
Enhanced Enzymatic Xylose/Cellulose Fractionation From Alkaline Liquor-Pretreated Corn Cob By Surfactant Addition And Separate Fermentation To Bioethanol, Yefu Chen, Xinxin Zhang, Shijie Zhang, Weijun Qin, Changhui Guo, Xuewu Guo, Dongguang Xiao
Enhanced Enzymatic Xylose/Cellulose Fractionation From Alkaline Liquor-Pretreated Corn Cob By Surfactant Addition And Separate Fermentation To Bioethanol, Yefu Chen, Xinxin Zhang, Shijie Zhang, Weijun Qin, Changhui Guo, Xuewu Guo, Dongguang Xiao
Turkish Journal of Biology
Xylanase xylose/cellulose fractionation can efficiently improve the utilization of xylose and cellulose. Improvement of xylanase performance during hemicellulose hydrolysis can increase xylose/cellulose fractionation efficiency. To utilize xylose and cellulose efficiently, an enzymatic xylose/cellulose fractionation and a separate fermentation bioethanol process were performed. Alkaline liquor-pretreated corn cob was subjected to xylose/cellulose fractionation with xylanase in the presence or absence of the following mixed surfactants: polyoxyethylene(20)-sorbitan-monooleate (0.15% v/v), polyethylene glycol 6000 (0.15% w/v), bovine serum albumin (0.15% w/v), and rhamnolipid (0.005% v/v). The hemicellulose hydrolysis yield (HHY) in the presence of mixed surfactants was 70.5%, which was 66% higher than that of …