title: Enhancing enzymatic hydrolysis of xylan by adding sodium lignosulfonate and long-chain fatty alcohols.
abstract: Sodium lignosulfonate (SXSL) and long-chain fatty alcohols (LFAs) could enhance the enzymatic hydrolysis of xylan, and the compound of SXSL and LFAs have synergies on the enzymatic hydrolysis. SXSL shows a strong enhancement in buffer pH range from 4.0 to 6.0. The enhancement increased with the SXSL dosage and the xylanase loading. The cellulose and lignin in corncob substrate could not only adsorb xylanase nonproductively, but also seriously reduce the accessibility of xylanase on xylan to impede the enzymatic hydrolysis of xylan. Cellulase could break the plant cell wall structure of corncob and make additives work better. The xylose yield of corncob at 72h increased from 59.4% to 73.7% by adding the compound of 5g/L SXSL and 0.01% (v/v) n-decanol, which was higher than that without cellulase and additives by 30.7%. Meanwhile, the glucose yield at 72h of corncob increased from 45.8% to 62.3%.
authors.affiliation: School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China; State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, China.
authors.forename: Hongming
authors.initials: H
authors.lastname: Lou
authors.affiliation: School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China.
authors.forename: Long
authors.initials: L
authors.lastname: Yuan
authors.affiliation: School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China; State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, China. Electronic address: xueqingqiu66@163.com.
authors.forename: Xueqing
authors.initials: X
authors.lastname: Qiu
authors.affiliation: School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China.
authors.forename: Kexian
authors.initials: K
authors.lastname: Qiu
authors.affiliation: Guangdong Key Laboratory of Sugarcane Improvement & Biorefinery, Sugarcane Industry Research Institute, Guangzhou, China.
authors.forename: Jinguo
authors.initials: J
authors.lastname: Fu
authors.affiliation: School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China.
authors.forename: Yuxia
authors.initials: Y
authors.lastname: Pang
authors.affiliation: School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China.
authors.forename: Jinhao
authors.initials: J
authors.lastname: Huang
mesh_terms: D000327:Adsorption; D001709:Biotechnology / Q000379:methods*; D002480:Cellulase / Q000737:chemistry / Q000378:metabolism; D002482:Cellulose / Q000737:chemistry; D005233:Fatty Alcohols / Q000737:chemistry*; D006868:Hydrolysis; D008031:Lignin / Q000031:analogs & derivatives* / Q000737:chemistry; D058525:Quartz Crystal Microbalance Techniques; D013056:Spectrophotometry, Ultraviolet; D018505:Waste Management / Q000379:methods; D014990:Xylans / Q000737:chemistry* / Q000378:metabolism; D014994:Xylose / Q000737:chemistry / Q000378:metabolism*; D003313:Zea mays / Q000737:chemistry / Q000378:metabolism
chemical_list: D005233:Fatty Alcohols; D014990:Xylans; C001545:lignosulfuric acid; C029383:n-decyl alcohol; D002482:Cellulose; D008031:Lignin; D014994:Xylose; D002480:Cellulase
keywords: Corncob; Enzymatic hydrolysis; Lignosulfonate; Long-chain fatty alcohols; Xylan