Impact of Alkaline Pretreatment Condition on Enzymatic Hydrolysis of Sugarcane Bagasse and Pretreatment Cost

doi:10.1007/s12010-021-03530-y

	Impact of Alkaline Pretreatment Condition on Enzymatic Hydrolysis of Sugarcane Bagasse and Pretreatment Cost
	Wang, Chaojun 1,2; Qi, Wei 2; Liang, Cuiyi 1,2; Wang, Qiong 2; Wang, Wen 2; Wang, Zhongming 2; Yuan, Zhenhong 2,3
刊名	APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
	2021-02-18
页码	11
关键词	Sodium hydroxide pretreatment Combined severity factor Lignocellulose Biorefinery Economic assessment
ISSN号	0273-2289
DOI	10.1007/s12010-021-03530-y
通讯作者	Wang, Wen(wangwen@ms.giec.ac.cn)
英文摘要	A combined severity factor (R-CSF) which is usually used to evaluate the effectiveness of hydrothermal pretreatment at above 100 degrees C had been developed to assess the influence of temperature, time, and alkali loading on pretreatment and enzymatic hydrolysis of lignocellulose. It is not suitable for evaluating alkaline pretreatment effectiveness at lower than 100 degrees C. According to the reported deducing process, this study modified the expression of R-CSF = log[C-OH-(n) x t x e((Tr-Tb))/14.75] as R-CSF = log [COH- x t x e([-13700/Tr+273)) + 36.2]} which is easier and more reasonable to assess the effectiveness of alkaline pretreatment. It showed that R-CSF exhibited linear trend with lignin removal, and quadratic curve relation with enzymatic hydrolysis efficiency (EHE) at the same temperature. The EHE of alkali-treated SCB could attain the maximum value at lower R-CSF, which indicated that it was not necessary to continuously enhance strength of alkaline pretreatment for improving EHE. Within a certain temperature range, the alkali loading was more important than temperature and time to influence pretreatment effectiveness and EHE. Furthermore, the contribution of temperature, time, and alkali loading to pretreatment cost which was seldom concerned was investigated in this work. The alkali loading contributed more than 70% to the pretreatment cost. This study laid the foundation of further optimizing alkaline pretreatment to reduce cost for its practical application.
资助项目	National Key R&D Program of China[2019YFB1503802] ; Pearl River S&T Nova Program of Guangzhou, China[201806010052] ; National Natural Science Foundation of China[51861145103] ; National Natural Science Foundation of China[51976224] ; National Natural Science Foundation of China[52006227] ; Guangdong Basic and Applied Basic Research Foundation, China[2020A1515011012]
WOS研究方向	Biochemistry & Molecular Biology ; Biotechnology & Applied Microbiology
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000619374900001
资助机构	National Key R&D Program of China ; Pearl River S&T Nova Program of Guangzhou, China ; National Natural Science Foundation of China ; Guangdong Basic and Applied Basic Research Foundation, China
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/32677]
专题	中国科学院广州能源研究所
通讯作者	Wang, Wen
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 3.Collaborat Innovat Ctr Biomass Energy, Zhengzhou 450002, Peoples R China
推荐引用方式 GB/T 7714	Wang, Chaojun,Qi, Wei,Liang, Cuiyi,et al. Impact of Alkaline Pretreatment Condition on Enzymatic Hydrolysis of Sugarcane Bagasse and Pretreatment Cost[J]. APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY,2021:11.
APA	Wang, Chaojun.,Qi, Wei.,Liang, Cuiyi.,Wang, Qiong.,Wang, Wen.,...&Yuan, Zhenhong.(2021).Impact of Alkaline Pretreatment Condition on Enzymatic Hydrolysis of Sugarcane Bagasse and Pretreatment Cost.APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY,11.
MLA	Wang, Chaojun,et al."Impact of Alkaline Pretreatment Condition on Enzymatic Hydrolysis of Sugarcane Bagasse and Pretreatment Cost".APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY (2021):11.