微生物果胶酶的研究进展

该文综述了近年来微生物果胶酶的产生菌种及菌种选育的研究,论述了果胶酶的分类、作用机制及酶活测定方法,并对微生物果胶酶的酶学性质、分子生物学研究及应用等方面进行了概述。

饲用NSP酶制剂的研究进展

本文论述了非淀粉多糖(NSP)的抗营养特性、饲用非淀粉多糖酶的作用机理及非淀粉多糖酶活力的测定方法,并对今后NSP酶制剂的研究进行了展望,为今后进一步研究饲用非淀粉酶提供了参考。

胆固醇氧化酶的研究进展

胆固醇氧化酶在食品加工、医疗监测、生物抗虫等方面作用日益受到人们的重视,并且显示出巨大应用潜力,现已成为一大研究热点。笔者综述了产酶的微生物、酶活测定方法及发酵工艺等,并对胆固醇氧化酶的研究进行了展望。

A Mew Technique to Rapidly Test Agrochemicai Residues In Fruits and Vegetables

Extraction of AchE, relationship between substrate and enzyme concentration, and inhibition effects of the agrochemicals to AchE are discussed in this paper. Through the re-search, the proper AchE concentration for hydrolysis of 1 ml 1mmol/L substrate and I50 val-ues of the agrochemicals to AchE are decided. It is proved that Asch-DTNB method is a rapid test tool for agrochemical residues in fruits and vegetables.A rapid test card has been developed with sensitivity of 0.05mg/L.