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投稿时间：2019-10-26
投稿时间：2019-10-26
中文摘要: 以内蒙古乌海地区沙漠葡萄自然发酵醪液为筛选来源，共分离纯化出22 株酵母菌，通过复筛得到1 株优良酵母菌KT3，经26S rDNA D1/D2 区测序，鉴定为酵母菌属（Saccharomyces）的酿酒酵母菌（Saccharomyces cerevisiae）；该酵母菌具有良好的耐受能力，耐酒精度为16%，耐SO2 浓度为450 mg/L，耐高糖浓度为50%，耐pH 值为2.5；并且具备高产酒精和低产硫化氢的能力，发酵产品风味协调，典型性强，可以用于葡萄酒的生产。
Abstract:22 strains of yeast in Wuhai area of Inner Mongolia were isolated and purified from natural fermentation mash.One strain of yeast KT3 was obtained through re-screening.The yeast was identified as Saccharomyces cerevisiae by sequencing in 26S rDNA D1/D2 region.The yeast had good tolerance.Alcohol tolerance was 16 %，sulfur dioxide resistant concentration was 450 mg/L，sugar tolerance was 50 %，pH tolerance was 2.5.Furthermore，it had the ability of high-yield alcohol and low-yield hydrogen sulfide.The fermented product could be used in wine production since it had harmonious flavor and strong typicality.
文章编号：202005027 中图分类号： 文献标志码：
基金项目:内蒙古自治区教育厅产学研科技创新平台项目（NJCXY-19-05）
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