有机介质中固定化酵母催化苯甲醛加氢反应

为了进一步拓展酵母在有机反应中的应用领域，考察了多种酵母在水相及有机相中对苯甲醛加氢
生成苯甲醇的催化活性，通过海藻酸钙固定化面包酵母，进一步研究了有机溶剂种类、底物初始浓度、
酵母量、酵母活化处理等因素对酵母催化苯甲醛加氢能力的影响.结果表明,假丝酵母1#和面包酵母催化
苯甲醛加氢能力较强，活化处理的酵母、较大lg P值的溶剂对催化苯甲醛加氢有较好的反应活性.本研究
为开发酵母在有机反应中的应用奠定了实验基础.

Studies on catalytic hydrogenation of benzaldehyde with immobilized yeasts in organic solvents

Catalytic hydrogenation of benzaldehyde to benzyl alcohol with a number of yeasts in aqueous phase or organic phase was investigated.The factors such as types of organic solvents,original concentration of substrates,quantity of yeasts and activating treatment of yeasts were investigated further through the baker's yeasts immobilized with calcium alginate.The results showed that catalytic hydrogenations of benzaldehyde with the candida sp and baker's yeast are relatively better,and that catalytic hydrogenations of benzaldehyde by the activated yeast and in organic solvents with higher value of lg P are preferable.This work has established the experimental foundation for applications of the yeasts in the organic reaction.