Mild Urea/KOH pretreatment to enhance enzymatic hydrolysis of corn stover with liquid waste recovery for plant growth

doi:10.1016/j.jclepro.2020.125392

	Mild Urea/KOH pretreatment to enhance enzymatic hydrolysis of corn stover with liquid waste recovery for plant growth
	Zahoor 2; Wang, Wen 2; Tan, Xuesong 2; Guo, Ying 2; Zhang, Bowen 2; Chen, Xiaoyan 2; Yu, Qiang 2; Zhuang, Xinshu 2; Yuan, Zhenhong 1,2
刊名	JOURNAL OF CLEANER PRODUCTION
	2021-02-15
卷号	284 页码:9
关键词	Pretreatment Corn stover Ethanol Urea/KOH Liquid waste Value-added fertilizer
ISSN号	0959-6526
DOI	10.1016/j.jclepro.2020.125392
通讯作者	Wang, Wen(wangwen@ms.giec.ac.cn) ; Zhuang, Xinshu(zhuangxs@ms.giec.ac.cn)
英文摘要	Alkaline pretreatment can effectively remove lignin and significantly increase enzymatic hydrolysis efficiency of lignocellulosic biomass. Sodium hydroxide (NaOH) is the common alkali for treating lignocellulose. However, a large quantity of liquid waste (LW) generated in the NaOH pretreatment process is hard to be removed. In this context, this work employed KOH together with urea for treating corn stover (CS) and explored the feasibility of recovering LW for plant fertilization due to the existence of potassium (K) and nitrogen (N) elements in LW. With response surface methodology, an optimum pretreatment condition, which was 1:1 (2% w/v) Urea/KOH (UK) at 30 degrees C for 2 h was achieved. Enzymatic digestibility of UK-treated CS could attain 75.49%, which was 12.55% higher than that of KOH-treated CS under the same conditions. The glucose yield could be further increased to 83.1% with the addition of 1% Tween-80. Meanwhile, the LW showed significant enhancement in the length and biomass yield of two cereal and three vegetable crops. UK pretreatment is a promising greenway for cellulosic ethanol production by recycling LW as value-added fertilizer. (C) 2020 Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China[51976221] ; National Natural Science Foundation of China[51606203] ; National Natural Science Foundation of China[51876206] ; Pearl River S&T Nova Program of Guangzhou[201806010052] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA21050400] ; Southeast Asia Biodiv. Res. Institute, CAS[Y4ZK111B01]
WOS关键词	SODIUM-HYDROXIDE PRETREATMENT ; HOT-WATER PRETREATMENT ; LIGNOCELLULOSIC BIOMASS ; ALKALINE PRETREATMENT ; POTASSIUM HYDROXIDE ; BIOETHANOL PRODUCTION ; STRUCTURAL FEATURES ; CLEANER PRODUCTION ; SUGARCANE BAGASSE ; WHEAT-STRAW
WOS研究方向	Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000608119300003
资助机构	National Natural Science Foundation of China ; Pearl River S&T Nova Program of Guangzhou ; Strategic Priority Research Program of Chinese Academy of Sciences ; Southeast Asia Biodiv. Res. Institute, CAS
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/32555]
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.Collaborat Innovat Ctr Biomass Energy, Zhengzhou 450002, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China
推荐引用方式 GB/T 7714	Zahoor,Wang, Wen,Tan, Xuesong,et al. Mild Urea/KOH pretreatment to enhance enzymatic hydrolysis of corn stover with liquid waste recovery for plant growth[J]. JOURNAL OF CLEANER PRODUCTION,2021,284:9.
APA	Zahoor.,Wang, Wen.,Tan, Xuesong.,Guo, Ying.,Zhang, Bowen.,...&Yuan, Zhenhong.(2021).Mild Urea/KOH pretreatment to enhance enzymatic hydrolysis of corn stover with liquid waste recovery for plant growth.JOURNAL OF CLEANER PRODUCTION,284,9.
MLA	Zahoor,et al."Mild Urea/KOH pretreatment to enhance enzymatic hydrolysis of corn stover with liquid waste recovery for plant growth".JOURNAL OF CLEANER PRODUCTION 284(2021):9.