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中国精品科技期刊2020
李志辉, 任蓓蕾, 朱健辉, 杜萍萍, 张莹莹, 何俊萍, 张伟, 王颉, 檀建新. 一株产乙酸乙酯酵母C42的分离与鉴定[J]. 食品工业科技, 2014, (08): 188-191. DOI: 10.13386/j.issn1002-0306.2014.08.034
引用本文: 李志辉, 任蓓蕾, 朱健辉, 杜萍萍, 张莹莹, 何俊萍, 张伟, 王颉, 檀建新. 一株产乙酸乙酯酵母C42的分离与鉴定[J]. 食品工业科技, 2014, (08): 188-191. DOI: 10.13386/j.issn1002-0306.2014.08.034
LI Zhi-hui, REN Bei-lei, ZHU Jian-hui, DU Ping-ping, ZHANG Ying-ying, HE Jun-ping, ZHANG Wei, WANG Jie, TAN Jian-xin. Isolation and identification of an ethyl acetate producing yeast strain C-42[J]. Science and Technology of Food Industry, 2014, (08): 188-191. DOI: 10.13386/j.issn1002-0306.2014.08.034
Citation: LI Zhi-hui, REN Bei-lei, ZHU Jian-hui, DU Ping-ping, ZHANG Ying-ying, HE Jun-ping, ZHANG Wei, WANG Jie, TAN Jian-xin. Isolation and identification of an ethyl acetate producing yeast strain C-42[J]. Science and Technology of Food Industry, 2014, (08): 188-191. DOI: 10.13386/j.issn1002-0306.2014.08.034

一株产乙酸乙酯酵母C42的分离与鉴定

Isolation and identification of an ethyl acetate producing yeast strain C-42

  • 摘要: 从采自沧州良种枣繁育基地的200份枣果实样品中利用含有10%乙醇的YPD平板分离、筛选得到了36株耐酒精酵母菌株,其中一株酵母能产生愉悦的水果香味,命名为C-42。通过形态学,生理生化实验和18S rDNA序列同源性比对,证明该株酵母菌是异威克汉逊酵母(Wickerhamomyces anomalus)。气相色谱分析表明酵母菌株C-42在麦芽汁培养基中发酵一周后可产生乙酸乙酯,浓度可达154mg/L,说明该菌株在发酵工业中具有应用潜力。 

     

    Abstract: Thirty six yeast strains which were resistant to alcohol on YPD plate containing 10% ethanol were isolated from 200 jujube fruit samples collected from Cangzhou Jujube Seed Breeding Base. Among these strains, a yeast strain producing pleasant fruit flavors, named C-42, were isolated. It was identified as Wickerhamomyces anomalus by the morphological, physiological and biochemical tests and the homological comparison of18S rDNA sequence. Gas chromatography analysis showed that the yeast strain C-42 could produce ethyl acetate up to 154mg/L after a week-long fermentation in wort medium. The strain may have potential applications in the fermentation industry.

     

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