Optimization of Alkaline Sulfite Pretreatment and Comparative Study with Sodium Hydroxide Pretreatment for Improving Enzymatic Digestibility of Corn Stover

doi:10.1021/jf505433q

QIBEBT-IR > 绿色化学催化研究组

	Optimization of Alkaline Sulfite Pretreatment and Comparative Study with Sodium Hydroxide Pretreatment for Improving Enzymatic Digestibility of Corn Stover
	Liu, Huan 1,2; Pang, Bo 2; Wang, Haisong1,2 ; Li, Haiming 1; Lu, Jie 1; Niu, Meihong 1
	2015-04-01
发表期刊	JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷号	63 期号:12 页码:3229-3234
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%.
文章类型	Article
关键词	Corn Stover Alkaline Sulfite Pretreatment Enzymatic Hydrolysis Total Sugar Yield
WOS标题词	Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI	10.1021/jf505433q
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研究方向	Agriculture ; Chemistry ; Food Science & Technology
WOS类目	Agriculture, Multidisciplinary ; Chemistry, Applied ; Food Science & Technology
WOS记录号	WOS:000352245200019
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/6418
专题	绿色化学催化研究组
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.