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中国农学通报 ›› 2011, Vol. 27 ›› Issue (14): 64-68.

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杨梅汁中酿酒酵母的分离、鉴定及生长特性的研究

谢建华 庞杰 何佳滨 郑佳俐 王文成   

  • 收稿日期:2010-12-16 修回日期:2011-02-14 出版日期:2011-06-15 发布日期:2011-06-15
  • 基金资助:

    福建省教育厅科技项目

Studies on the Isolation, Identification and Growth Characteristics of the Yeast in Myrica rubra Juice

  • Received:2010-12-16 Revised:2011-02-14 Online:2011-06-15 Published:2011-06-15

摘要:

为筛选得到适合发酵杨梅果酒的酵母菌株,从优质自然发酵杨梅汁中分离筛选到一株酵母Y-9,对该酵母菌进行形态学鉴定、生理生化等试验,结果显示,杨梅酒中的酵母菌为郎比可酒香酵母(Brettanomyces lambicus)。该菌在麦芽汁中的最适生长温度为34℃,最低和最高生长温度分别为10℃和39℃;最适生长pH为4.5,最低和最高生长pH分别为2.5和9.0;耐酒精为14%。

关键词: 成活率, 成活率

Abstract:

In order to achieve qulity yeast for Myrica rubra wine, a strain of Y-9 was isolated from the natural fermented Myrica rubra juice. In this paper, the morphological identification of yeast, and other physiological and biochemical tests. The results showed that Y-9 was Brettanomyces lambicus. The growth characteristics of the selected yeast in malt extract was studied. The optimum growth temperature was 34℃, while the minimum and maximum growth temperatures were 10℃ and 39℃ respectively. The optimum growth pH value was 4.5, while the minimum and maximum growth pH values were 2.5 and 9.5 respectively. The maximum concentration of ethanol permitting growth was 14%.