产多元醇酵母的耐高渗生长特征

Growth Patterns of Polyol Producing Yeasts in Response to Water Stress

摘要:

应用低水活度选择性增殖的方法从花卉、果园土壤、水果和蜂产品等样品中分离得到２６７株耐高渗酵母，其中２０６株生产阿拉伯醇、赤藓糖醇和甘油等各种多元醇．对随机挑选的６２株产多元醇的耐高渗酵母在不同质量浓度葡萄糖培养基中的生长特征进行了研究，结果显示酵母的耐高渗生长能力与其产多元醇的类别之间存在关联．在所调查的酵母中，产赤藓糖醇的酵母耐高渗生长能力最强、产阿拉伯醇的酵母耐高渗生长能力次之，产甘油的酵母耐高渗生长能力较弱．

Abstract:

A total of 267 strains of osmotolerant yeasts were isolated from flowers, fruits, soil and honey. A survey of these osmotolerant yeasts showed that glycerol, erythritol and arabitol were produced by 206 strains. The growth curves of 62 strains of polyol