Ethanol production from sugarcane bagasse by fed-batch simultaneous saccharification and fermentation at high solids loading

doi:10.1002/ese3.257

GIEC OpenIR

	Ethanol production from sugarcane bagasse by fed-batch simultaneous saccharification and fermentation at high solids loading
	Gao, Yueshu 1; Xu, Jingliang2 ; Yuan, Zhenhong2 ; Jiang, Jianchun 3; Zhang, Zhenjia 1; Li, Chunjie 1
	2018-12-01
发表期刊	ENERGY SCIENCE & ENGINEERING
ISSN	2050-0505
卷号	6 期号:6 页码:810-818
通讯作者	Jiang, Jianchun(bio-energyi@163.com) ; Li, Chunjie(cjli@sjtu.edu.cn)
摘要	To make the bioethanol conversion process economically viable, improving solids loading (>15% [w/v]) in different unit operations is crucial. In this study, alkali pretreatment of sugarcane bagasse was carried out at high solids loading. Temperature and pH were optimised via batch simultaneous saccharification and fermentation (SSF) experiments using Saccharomyces cerevisiae Y-2034 or Kluyveromyces marxianus NCYC-587. The effects of enzyme addition mode and solids loading on ethanol production were studied in fed-batch SSF experiments. It was demonstrated that the optimised pH and temperature for both S. cerevisiae Y-2034 and K. marxianus NCYC-587 were 5.2 and 37 degrees C. The mode of enzyme addition "one-time dose" improved ethanol productivity better than the "batch addition" mode. With fresh substrates added, solids loading strongly increased from 19% to 33% (w/v), corresponded to a small decline in the ethanol yield. At the final solids loading of 33% (w/v), the highest ethanol concentration of 75.57 +/- 2.14 g/L was obtained, with ethanol productivity of 0.63 +/- 0.02 g/(L h) and a yield of 66.17 +/- 1.87%.
关键词	ethanol production fed-batch process high solids loading simultaneous saccharification and fermentation sugarcane bagasse
DOI	10.1002/ese3.257
关键词[WOS]	BIOETHANOL PRODUCTION ; ENZYMATIC-HYDROLYSIS ; CORN STOVER ; PRETREATMENT ; BIOMASS ; OPTIMIZATION ; PERSPECTIVES ; CELLULOSE ; GRASS ; SSF
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[21808141] ; Natural Science Foundation of Jiangsu Province for Youth Science Funds[BK20160150] ; Natural Science Foundation of Shanghai City[16ZR1417400] ; Fundamental Research Funds for the Central Universities[17X100040069]
WOS研究方向	Energy & Fuels
项目资助者	National Natural Science Foundation of China ; Natural Science Foundation of Jiangsu Province for Youth Science Funds ; Natural Science Foundation of Shanghai City ; Fundamental Research Funds for the Central Universities
WOS类目	Energy & Fuels
WOS记录号	WOS:000453699300015
出版者	WILEY
引用统计	被引频次：21[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/29805
专题	中国科学院广州能源研究所
通讯作者	Jiang, Jianchun; Li, Chunjie
作者单位	1.Shanghai Jiao Tong Univ, Sch Environm Sci & Engn, Shanghai, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou, Guangdong, Peoples R China 3.Chinese Acad Forest, Inst Chem Ind Forest Prod, Nanjing, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Gao, Yueshu,Xu, Jingliang,Yuan, Zhenhong,et al. Ethanol production from sugarcane bagasse by fed-batch simultaneous saccharification and fermentation at high solids loading[J]. ENERGY SCIENCE & ENGINEERING,2018,6(6):810-818.
APA	Gao, Yueshu,Xu, Jingliang,Yuan, Zhenhong,Jiang, Jianchun,Zhang, Zhenjia,&Li, Chunjie.(2018).Ethanol production from sugarcane bagasse by fed-batch simultaneous saccharification and fermentation at high solids loading.ENERGY SCIENCE & ENGINEERING,6(6),810-818.
MLA	Gao, Yueshu,et al."Ethanol production from sugarcane bagasse by fed-batch simultaneous saccharification and fermentation at high solids loading".ENERGY SCIENCE & ENGINEERING 6.6(2018):810-818.