林产化学与工业2012，Vol.32Issue(5)：69-76,8.
绿液预处理麦秆纤维素酶水解的研究
Enzymatic Hydrolysis of Wheat Straw Pretreated by Green Liquor
摘要
Abstract
The wheat straw pretreated by green liquor was hydrolyzed under the exist of enzymes. The pulp yield,chemical com-position and enzymatic hydrolysis yield under different green liquor pretreatment conditions were studied. The results indicated that the pulp with higher weight loss and delignification were obtained as more severe condition was applied in pretreatment,and the enzymatic hydrolysis yield was higher in the same enzymatic hydrolysis conditions. The proper pretreatment was conducted at 150℃; as the total alkali charge and sulfidity were 8 % and 40 % while pulp yield was 62.0 % ,the content of glucan,xylan and lignin was 50.0 % ,18.9 % and 16.2%,glucose yield and xylose yield was 74.2 % and 73.5% ,repectively. The effects of mass concentration and enzyme dosage on wheat straw pretratment by green liquor were investigated. The enzyme system and addition amount of Tween-80 were optimized. The optimum enzymatic hydrolysis conditions of wheat straw by green liquor were 100 g/L mass concentration,15 FPU/g cellulase dosages,9 IU/g β-glucosidase,30 IU/g xylanase and 0.05 g/g Tween-80. The glucose yield and xylose yield were 82.5 % and 77.8 % respectively under the optimum pretreatment conditions. They were 2. 6 times and 1. 6 times of those without treatment.关键词
麦秆/纤维素酶水解/绿液预处理Key words
wheat straw/enzymatic hydrolysis/green liquor pretreatment分类
化学化工引用本文复制引用
赵士明,陆青山,储秋露,余世袁..绿液预处理麦秆纤维素酶水解的研究[J].林产化学与工业,2012,32(5):69-76,8.基金项目
国家林业局林业公益性行业科研专项(201004001) （201004001）
江苏高校科技创新团队资助项目(无编号) （无编号）
江苏高校优势学科建设工程资助项目(无编号) （无编号）
