天津科技大学学报2011，Vol.26Issue(5)：27-31,5.
不同预处理方法对棉秆酶水解的影响
Effects of Different Pretreatment Methods on Enzymatic Hydrolysis of Cotton Stalk
摘要
Abstract
Effect of the chemicals dosage of dilute sulfuric acid.sulfurous acid and sulfite pretreatment and enzymatic hydrolysis of cotton stalk was investigated. The scanning electron microscopic (SEM) analysis of untreated and treated cotton stalk was performed for comparing these methods. Under conditions of liquid ratio 1 : 4, temperature 180 °C for 20 min, cellulase 10 U/g,cellobiase 3.6 U/g compared to substrate, enzymatic hydrolysis conversion rate was 42.63% when 5.52% sulfuric acid with mass fraction of 98% for pretreating cotton stalk, enzymatic hydrolysis conversion rate was 81.25% when 7% sulfurous acid for pretreating cotton stalk, and enzymatic hydrolysis conversion rate was 70.06% when 0.92% sulfuric acid with mass fraction of 98% and 8% sodium bisulfite for pretreating cotton stalk.关键词
棉秆/酶水解/预处理Key words
cotton stalk/ enzymatic hydrolysis/ pretreatment method分类
化学化工引用本文复制引用
齐临冬,王高升,于孟辉,普春刚..不同预处理方法对棉秆酶水解的影响[J].天津科技大学学报,2011,26(5):27-31,5.基金项目
天津市高等学校科技发展基金资助项目(20080522) （20080522）
华南理工大学制浆造纸工程国家重点实验室开放基金资助项目(200924) （200924）
