Optimization of Microwave Assisted Aspergillus niger Hydrolysis Saccharification Technics of Rice Husk

Reducing sugar was made from microwave pretreatment and Aspergillus niger synergistic hydrolysis of rice hull.The effects of sample size,volume of the enzymolysis solution,reaction time and reaction temperature on yield were investigated.The reaction conditions such as temperature,time and volume of the enzymolysis solution were analyzed by response surface methodology(RSM).The result showed that under a reaction temperature of 61°C and volume of the enzymolysis solution of 31 U/g,react for 18.8 h,the reducing sugar could reach 46.17%.The reducing sugar yield had been increased by 96.22% compared with the sample which hadn't been pretreated with microwave at the same conditions.