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

doi:10.1016/j.indcrop.2021.113776

	Rice straw pretreatment with KOH/urea for enhancing sugar yield and ethanol production at low temperature
	Zahoor 3; Wang, Wen 3; Tan, Xuesong 3; Imtiaz, Muhammad 2; Wang, Qingfeng 3; Miao, Changlin 3; Yuan, Zhenhong 1,3; Zhuang, Xinshu 3
刊名	INDUSTRIAL CROPS AND PRODUCTS
	2021-10-15
卷号	170 页码:7
关键词	Rice straw KU pretreatment Room temperature Sugar yield Ethanol production Fertilizer value
ISSN号	0926-6690
DOI	10.1016/j.indcrop.2021.113776
通讯作者	Zhuang, Xinshu(zhangxs@ms.giec.ac.cn)
英文摘要	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.
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关键词	POTASSIUM HYDROXIDE PRETREATMENT ; WHEAT-STRAW ; ALKALINE PRETREATMENT ; ENZYMATIC-HYDROLYSIS ; BIOMASS ; BIOETHANOL ; RESIDUE ; ACID
WOS研究方向	Agriculture
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000690490500002
资助机构	National Natural Science Foundation of China ; Pearl River S & T Nova Program in Guangzhou ; Chinese Academy of Sciences' Strategic Priority Research Program
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/33836]
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.Collaborat Innovat Ctr Biomass Energy, Zhengzhou 450002, Peoples R China 2.Abdul Wali Khan Univ, Dept Hort, Mardan 23200, Pakistan 3.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
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.