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EFFECT OF SULFITE PRETREATMENT TO OVERCOME THE RECALCITRANCE OF LIGNIN (SPORL) ON ENZYMATIC SACCHARIFICATION OF CORN STALK
Liu, Yun1,2; Wang, Gaosheng1; Xu, Jingliang2; Zhang, Yu2; Liu, Chuanfu3; Yuan, Zhenhong2
2011
发表期刊BIORESOURCES
卷号6期号:4页码:5001-5011
摘要In order to maximize the glucose yield in the subsequent enzymatic hydrolysis, corn stalk was pretreated with sulfite to overcome the recalcitrance of lignocellulose (SPORL) under different operational conditions (pretreatment temperature, bisulfite charge, and pH). The parameters optimized included sodium bisulfite charge from 0 to 7% (w/w) on od dry (od) substrate, pretreatment temperature 160 to 190 degrees C, and pH 2.2 to 6.7 required in the process. The results indicated that after the SPORL pretreatment of corn stalk with 7% bisulfite at 180 degrees C for 30 min, about 69% and 62% of enzymatic conversion efficiency and glucose yield were achieved, respectively, with emzyme loading of about 5 FPU cellulase per gram of cellulose plus beta-glucosidase after 72 h hydrolysis. Temperature had a positive effect on enzymatic hydrolysis. The enzymatic conversion efficiency was reached 81.04% with 7% sodium bisulfite at 190 degrees C for 30 min. The pH of pretreatment liquor plays a crucial role in enhancing enzymatic digestibility of SPORL substrate.
文章类型Review
关键词Corn Stalk Sporl Pretreatment Enzymatic Saccharification/hydrolysis Sodium Bisulfite
WOS标题词Science & Technology ; Technology
研究领域[WOS]Materials Science
关键词[WOS]LIGNOCELLULOSIC BIOMASS ; ETHANOL-PRODUCTION ; HYDROLYSIS ; DIGESTIBILITY ; TECHNOLOGIES ; RECYCLE ; STOVER
收录类别SCI
语种英语
WOS类目Materials Science, Paper & Wood
WOS记录号WOS:000298119500104
引用统计
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/10371
专题中国科学院广州能源研究所
作者单位1.Tianjin Univ Sci & Technol, Tianjin Key Lab Pulp & Paper, Tianjin 300457, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy & Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China
3.S China Univ Technol, State Key Lab Pulp & Paper Engn, Guangzhou 510640, Guangdong, Peoples R China
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GB/T 7714
Liu, Yun,Wang, Gaosheng,Xu, Jingliang,et al. EFFECT OF SULFITE PRETREATMENT TO OVERCOME THE RECALCITRANCE OF LIGNIN (SPORL) ON ENZYMATIC SACCHARIFICATION OF CORN STALK[J]. BIORESOURCES,2011,6(4):5001-5011.
APA Liu, Yun,Wang, Gaosheng,Xu, Jingliang,Zhang, Yu,Liu, Chuanfu,&Yuan, Zhenhong.(2011).EFFECT OF SULFITE PRETREATMENT TO OVERCOME THE RECALCITRANCE OF LIGNIN (SPORL) ON ENZYMATIC SACCHARIFICATION OF CORN STALK.BIORESOURCES,6(4),5001-5011.
MLA Liu, Yun,et al."EFFECT OF SULFITE PRETREATMENT TO OVERCOME THE RECALCITRANCE OF LIGNIN (SPORL) ON ENZYMATIC SACCHARIFICATION OF CORN STALK".BIORESOURCES 6.4(2011):5001-5011.
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