Rice straw pretreatment with KOH/urea for enhancing sugar yield and ethanol production at low temperature

doi:10.1016/j.indcrop.2021.113776

GIEC OpenIR

	Rice straw pretreatment with KOH/urea for enhancing sugar yield and ethanol production at low temperature
	Zahoor 1; Wang, Wen 1; Tan, Xuesong1 ; Imtiaz, Muhammad 2; Wang, Qingfeng 1; Miao, Changlin 1; Yuan, Zhenhong1,3 ; Zhuang, Xinshu1
	2021-10-15
发表期刊	INDUSTRIAL CROPS AND PRODUCTS
ISSN	0926-6690
卷号	170 页码:7
通讯作者	Zhuang, Xinshu(zhangxs@ms.giec.ac.cn)
摘要	In this experiment, a low-temperature (< 100 degrees C) KOH/urea (KU) pretreatment of rice straw (RS) was performed to enhance its bioconversion to ethanol. The pretreatment factors were optimized by Box-Behnken Design of response surface method (RSM), resulting in an optimum KU concentration of 3%, with a solid to liquid ratio of 1:15 for 3 hat 70 degrees C. Under the above conditions, five-times higher sugar yields (92.38 %) and six-times higher ethanol production (87.13 %) compared with the control experiment were obtained. The cell wall composition and crystallinity index (CrI) of RS changed significantly after KU pretreatment, with cellulose amounts raised, while the CrI increased and the amounts of hemicellulose and lignin decreased. Additionally, the pretreatment liquor is high in potassium and nitrogen contents, which may be used as a fertilizer for plant cultivation to achieve a zero-emission biorefinery process.
关键词	Rice straw KU pretreatment Room temperature Sugar yield Ethanol production Fertilizer value
DOI	10.1016/j.indcrop.2021.113776
关键词[WOS]	POTASSIUM HYDROXIDE PRETREATMENT ; WHEAT-STRAW ; ALKALINE PRETREATMENT ; ENZYMATIC-HYDROLYSIS ; BIOMASS ; BIOETHANOL ; RESIDUE ; ACID
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51976221] ; Pearl River S & T Nova Program in Guangzhou[201806010052] ; Chinese Academy of Sciences' Strategic Priority Research Program[XDA21050400]
WOS研究方向	Agriculture
项目资助者	National Natural Science Foundation of China ; Pearl River S & T Nova Program in Guangzhou ; Chinese Academy of Sciences' Strategic Priority Research Program
WOS类目	Agricultural Engineering ; Agronomy
WOS记录号	WOS:000690490500002
出版者	ELSEVIER
引用统计	被引频次：38[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/344007/33837
专题	中国科学院广州能源研究所
通讯作者	Zhuang, Xinshu
作者单位	1.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 2.Abdul Wali Khan Univ, Dept Hort, Mardan 23200, Pakistan 3.Collaborat Innovat Ctr Biomass Energy, Zhengzhou 450002, Peoples R China
第一作者单位	中国科学院广州能源研究所
推荐引用方式 GB/T 7714	Zahoor,Wang, Wen,Tan, Xuesong,et al. Rice straw pretreatment with KOH/urea for enhancing sugar yield and ethanol production at low temperature[J]. INDUSTRIAL CROPS AND PRODUCTS,2021,170:7.
APA	Zahoor.,Wang, Wen.,Tan, Xuesong.,Imtiaz, Muhammad.,Wang, Qingfeng.,...&Zhuang, Xinshu.(2021).Rice straw pretreatment with KOH/urea for enhancing sugar yield and ethanol production at low temperature.INDUSTRIAL CROPS AND PRODUCTS,170,7.
MLA	Zahoor,et al."Rice straw pretreatment with KOH/urea for enhancing sugar yield and ethanol production at low temperature".INDUSTRIAL CROPS AND PRODUCTS 170(2021):7.