期刊论文

Optimal Process of Bagasse Synergistic Hydrolysis with Ultrasonic and WO_3/ZrO_2 Solid Acid

中文

安徽农业科学

0517-6611

2010

38

18

9776-9778

10.13989/j.cnki.0517-6611.2010.18.030

湖南省教育厅科技项目（08D124）；

本校为其他机构

[目的]采用超声波预处理协同固体酸水解蔗渣制备还原糖。[方法]探讨了超声波预处理后水解温度、固体酸用量、水解时间、液固比对水解液中还原糖得率的影响。采用响应面法建立二次回归模型,并对水解工艺进行优化。[结果]当水解温度97.52℃、固体酸用量5.76%、反应时间3.10 h、液固比18∶1时,还原糖的得率可达75.65%,比在相同工艺条件下未经超声波处理的得率提高了21.91%。[结论]超声波预处理能够促进蔗渣的水解。

[Objective] The aim was to study bagasse hydrolyzed with ultrasonic pretreatment and WO3/ZrO2 solid acid to prepare reducing sugar.[Method] The effects of hydrolysis temperature,quality of solid acid,hydrolysis time,and liquid-solid mass ratios on the reducing sugar yield in the hydrolyzate were discussed.A quadratic regression model was founded with response surface methodology,and the process was optimized.[Result] The result showed that the reducing sugar yield was 75.65%,the hydrolysis temperature was 97.52 ℃,quality of solid acid was 5.76...