Recycling of Black Liquor for Treating Sugarcane Bagasse at Low Temperature to Attain High Ethanol Production without Washing Step

doi:10.1021/acssuschemeng.0c05763

	Recycling of Black Liquor for Treating Sugarcane Bagasse at Low Temperature to Attain High Ethanol Production without Washing Step
	Wang, Qingfeng 1,2,3,5; Wang, Wen 1,2,5; Zahoor 1,2,5; Tan, Xuesong 1,2,5; Zhuang, Xinshu 1,2,5; Miao, Changlin 1,2,5; Guo, Ying 1,2,5; Chen, Xiaoyan 1,2,5; Yu, Qiang 1,2,5; Yuan, Zhenhong 1,2,4,5
刊名	ACS SUSTAINABLE CHEMISTRY & ENGINEERING
	2020-11-23
卷号	8 期号:46 页码:17016-17021
关键词	Alkaline pretreatment Fed-batch enzymatic hydrolysis Tween80 Domestication Saccharomyces cerevisiae
ISSN号	2168-0485
DOI	10.1021/acssuschemeng.0c05763
通讯作者	Wang, Wen(wangwen@ms.giec.ac.co) ; Zhuang, Xinshu(zhuangxs@ms.giec.ac.cn)
英文摘要	Alkaline pretreatment has been commonly used for bioconversion of lignocellulose into fuel ethanol due to its gentle condition. However, the large quantity of water consumption and wastewater generation from the pretreatment and washing steps have been two bottleneck problems for the practical application of alkaline pretreatment. In order to save water consumption and reduce wastewater generation, black liquor (BL) generated in the sodium hydroxide (NaOH) pretreatment process was recycled for pretreating sugarcane bagasse (SCB), and the BL-NaOH-treated SCB without being washed was directly enzymatically hydrolyzed and fermented. After 120-h fed-batch enzymatic hydrolysis with the addition of 20 FPU cellulase/g cellulose and 2.51 mu L Tween80/ mL hydrolytic slurry, the maximum glucose concentration and enzymatic hydrolysis efficiency achieved 99.95 g/L and 71.02%, respectively. After 36-h fermentation with the domesticated Saccharomyces cerevisiae, the ethanol production reached 44.53 g/L, which amounted to 87.35% of theoretical ethanol yield. Compared with other water-saving and wastewater-reducing alkaline pretreatments, this technology saved more than 20% water consumption and reduced over 20% wastewater discharge. It provides a promising applied technology for cellulosic ethanol production.
资助项目	Pearl River S&T Nova Program of Guangzhou, China[201806010052] ; National Natural Science Foundation of China[51976221] ; National Natural Science Foundation of China[51606203] ; National Natural Science Foundation of China[51876206] ; National Key Research and Development Program of China[2018YFB1501402] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA21050400]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Engineering
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000595489200003
资助机构	Pearl River S&T Nova Program of Guangzhou, China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; Strategic Priority Research Program of Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/32522]
专题	中国科学院广州能源研究所
通讯作者	Wang, Wen; Zhuang, Xinshu
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 2.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Collaborat Innovat Ctr Biomass Energy, Zhengzhou 450002, Henan, Peoples R China 5.CAS Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Wang, Qingfeng,Wang, Wen,Zahoor,et al. Recycling of Black Liquor for Treating Sugarcane Bagasse at Low Temperature to Attain High Ethanol Production without Washing Step[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2020,8(46):17016-17021.
APA	Wang, Qingfeng.,Wang, Wen.,Zahoor.,Tan, Xuesong.,Zhuang, Xinshu.,...&Yuan, Zhenhong.(2020).Recycling of Black Liquor for Treating Sugarcane Bagasse at Low Temperature to Attain High Ethanol Production without Washing Step.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,8(46),17016-17021.
MLA	Wang, Qingfeng,et al."Recycling of Black Liquor for Treating Sugarcane Bagasse at Low Temperature to Attain High Ethanol Production without Washing Step".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 8.46(2020):17016-17021.