Optimization of Alkaline Sulfite Pretreatment and Comparative Study with Sodium Hydroxide Pretreatment for Improving Enzymatic Digestibility of Corn Stover
Liu, Huan1,2; Pang, Bo2; Wang, Haisong1,2; Li, Haiming1; Lu, Jie1; Niu, Meihong1
刊名JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
2015-04-01
卷号63期号:12页码:3229-3234
关键词corn stover alkaline sulfite pretreatment enzymatic hydrolysis total sugar yield
英文摘要In this study, alkaline sulfite pretreatment of corn stover was optimized. The influences of pretreatments on solid yield, delignification, and carbohydrate recovery under different pretreatment conditions and subsequent enzymatic hydrolysis were investigated. The effect of pretreatment was evaluated by enzymatic hydrolysis efficiency and the total sugar yield. The optimum pretreatment conditions were obtained, as follows: the total titratable alkali (TTA) of 12%, liquid/solid ratio of 6:1, temperature of 140 degrees C, and holding time of 20 min. Under those conditions, the solid yield was 55.24%, and the removal of lignin was 82.68%. Enzymatic hydrolysis rates of glucan and xylan for pretreated corn stover were 85.38% and 70.36%, and the total sugar yield was 74.73% at cellulase loading of 20 FPU/g and beta-glucosidase loading of 10 IU/g for 48 h. Compared with sodium hydroxide pretreatment with the same amount of total titratable alkali, the total sugar yield was raised by about 10.43%. Additionally, the corn stover pretreated under the optimum pretreatment conditions was beaten by PFI at 1500 revolutions. After beating, enzymatic hydrolysis rates of glucan and xylan were 89.74% and 74.06%, and the total sugar yield was 78.58% at the same enzymatic hydrolysis conditions. Compared with 1500 rpm of PFI beating after sodium pretreatment with the same amount of total titratable alkali, the total sugar yield was raised by about 14.05%.
WOS标题词Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
类目[WOS]Agriculture, Multidisciplinary ; Chemistry, Applied ; Food Science & Technology
研究领域[WOS]Agriculture ; Chemistry ; Food Science & Technology
关键词[WOS]BIOLOGICAL PRETREATMENT ; STEAM EXPLOSION ; FUEL ETHANOL ; DILUTE-ACID ; RICE STRAW ; HOT-WATER ; HYDROLYSIS ; SACCHARIFICATION ; FRACTIONATION ; TECHNOLOGIES
收录类别SCI
语种英语
WOS记录号WOS:000352245200019
公开日期2015-12-24
内容类型期刊论文
源URL[http://ir.qibebt.ac.cn/handle/337004/6418]  
专题青岛生物能源与过程研究所_绿色化学催化团队
作者单位1.Dalian Polytech Univ, Liaoning Key Lab Pulp & Papermaking Engn, Dalian 116034, Liaoning, Peoples R China
2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, CAS Key Lab Biofuels, Qingdao 266101, Shandong, Peoples R China
推荐引用方式
GB/T 7714
Liu, Huan,Pang, Bo,Wang, Haisong,et al. Optimization of Alkaline Sulfite Pretreatment and Comparative Study with Sodium Hydroxide Pretreatment for Improving Enzymatic Digestibility of Corn Stover[J]. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY,2015,63(12):3229-3234.
APA Liu, Huan,Pang, Bo,Wang, Haisong,Li, Haiming,Lu, Jie,&Niu, Meihong.(2015).Optimization of Alkaline Sulfite Pretreatment and Comparative Study with Sodium Hydroxide Pretreatment for Improving Enzymatic Digestibility of Corn Stover.JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY,63(12),3229-3234.
MLA Liu, Huan,et al."Optimization of Alkaline Sulfite Pretreatment and Comparative Study with Sodium Hydroxide Pretreatment for Improving Enzymatic Digestibility of Corn Stover".JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 63.12(2015):3229-3234.
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