金属与糖化酶共催化糊精水解加氢制山梨醇的研究  

Study on the Hydrolysis-Hydrogenation of Dextrin to Sorbitol Co-Catalyzed by Metal and Saccharifying Enzyme

作　　者：李辉[1] 董福兴[1] 徐亮[1] 

机构地区：[1]上海师范大学生命与环境科学学院,上海200234

出　　处：《上海师范大学学报（自然科学版）》2011年第4期336-339,441,共4页Journal of Shanghai Normal University(Natural Sciences)

基　　金：国家自然科学基金项目(20973113);上海市教委项目(10SG41)

摘　　要：通过考察糖化酶对糊精水解的影响因素,确定了合适的糖化酶水解条件.通过对金属催化剂筛选,寻找出催化性能较好的Ru-P非晶态合金为加氢催化剂.采用超声辅助化学还原法制备了负载型Ru-P非晶态合金催化剂,与糖化酶相结合,用于糊精水解加氢一步法制备山梨醇,得到较高的山梨醇收率.The optimal reaction conditions for the hydrolysis of dextrin by saccharifying enzyme were determined via investigating several effect factors.Meanwhile,Ru-P amorphous alloy was selected as hydrogenation catalyst.A supported Ru-P amorphous alloy catalyst was prepared through ultrasound-assisted chemical reduction method.The as-prepared catalyst was combined with saccharifying enzyme,and employed in the one-pot hydrolysis-hydrogenation of dextrin to sorbitol.A relatively high sorbitol yield was achieved.

关 键 词：糊精 山梨醇 糖化酶 Ru-P非晶态合金催化剂 氢化 

分 类 号：O643.32[理学—物理化学]