文献类型：期刊文献

中文题名：糖化酶超滤速度的研究

英文题名：Studies on Ultrafiltration Flux Rate of Glucoamylase

作者：刘叶青[1];刘鑫峰[1];李昭清[1];唐晓红[1]

机构：[1]华东化工学院生化工程系

年份：1991

卷号：17

期号：1

起止页码：76

中文期刊名：华东化工学院学报

收录：国家哲学社会科学学术期刊数据库;Scopus;CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：酶;糖化酶;超滤;超过滤膜

外文关键词：ultrafiltration; ultrafiltration membrane; enzyme; glucoamylase; concentration polarization; gel layer

摘要：以浓差极化-凝胶层数学模型为基础,研究了影响糖化酶超滤速度的各种因素。结果表明:在浓差极化现象存在下,超滤速度随透出液体积和主体溶液浓度的增大而减小,随搅拌速度或料液流速的增大而增大。提高操作压力不会增大超滤速度。对糖化酶发酵液进行絮凝处理及适当提高温度都有利于超滤速度的提高。
Based on concentration polarization-gel layer mathematical model, effects of various factors on ultrafiltration flux rate of glucoamylase solution have been studied. Experimental results show that with the build-up of the gel-polarization layer, flux rate decreases with the increasing permeate volume and bulk concentration, and increases with the increasing stirring rate and fluid flow velocity across the membrane. Increasing the operating pressure has no positive effect on flux rate. Flocculation and moderately increasing the temperature will enhance the ultrafiltration flux rate of glucoamylase broth.