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

doi:10.1002/ese3.257

	Ethanol production from sugarcane bagasse by fed-batch simultaneous saccharification and fermentation at high solids loading
	Gao, Yueshu 1; Xu, Jingliang 2; Yuan, Zhenhong 2; Jiang, Jianchun 3; Zhang, Zhenjia 1; Li, Chunjie 1
刊名	ENERGY SCIENCE & ENGINEERING
	2018-12-01
卷号	6 期号:6 页码:810-818
关键词	ethanol production fed-batch process high solids loading simultaneous saccharification and fermentation sugarcane bagasse
ISSN号	2050-0505
DOI	10.1002/ese3.257
通讯作者	Jiang, Jianchun(bio-energyi@163.com) ; Li, Chunjie(cjli@sjtu.edu.cn)
英文摘要	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%.
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关键词	BIOETHANOL PRODUCTION ; ENZYMATIC-HYDROLYSIS ; CORN STOVER ; PRETREATMENT ; BIOMASS ; OPTIMIZATION ; PERSPECTIVES ; CELLULOSE ; GRASS ; SSF
WOS研究方向	Energy & Fuels
语种	英语
出版者	WILEY
WOS记录号	WOS:000453699300015
资助机构	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
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/29804]
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.