期刊论文

Preparation of Reducing Sugar Using Ultrasonic Pretreatment and Aspergillus Niger Synergistic Hydrolysis for Corncob

中文

食品研究与开发

1005-6521

2011

32

5

12-15

10.3969/j.issn.1005-6521.2011.05.004

湖南省教育厅科技项目（08D124）；

本校为其他机构

以玉米芯为原料,采用超声波预处理和黑曲霉协同水解玉米芯制备还原糖。探讨了经过超声波预处理后原料的粒度、酶液用量、水解温度和水解时间对还原糖得率的影响,并采用响应面法建立二次回归模型对水解工艺进行了优化,在反应温度为56℃、反应时间为22.4 h、酶液用量为26 U/g时,还原糖的得率可达到36.58%,比在相同工艺条件下未经超声波处理的得率提高了13.41%。

Reducing sugars was made from ultrasonic pretreatment and aspergillus niger synergistic hydrolysis for corncob.The effects of sample size,volume of the enzymolysis solution,reaction time and reaction temperature on reducing sugar yield were investigated.The reaction condition such as temperatures,times and volume of the enzymolysis solution were analyzed by response surface methodology（RSM）,and got the best processes.The result showed that under a reaction temperature of 56 ℃,a reaction time of 22.4 h,and a volume of the enzymolysis solution...