食品科学 ›› 2011, Vol. 32 ›› Issue (13): 165-168.doi: 10.7506/spkx1002-6630-201113036

• 生物工程 • 上一篇    下一篇

发酵蔬菜低温贮藏酵母菌动态变化研究

贺稚非,李洪军,任俊琦   

  1. 西南大学食品科学学院
  • 出版日期:2011-07-15 发布日期:2011-07-02
  • 基金资助:
    重庆市科委攻关项目(CSTC,2005AC1020)

Dynamic Change of Yeast in Pickled Radish Stored at Low Temperature

HE Zhi-fei,LI Hong-jun,REN Jun-qi   

  1. College of Food Science, Southwest University, Chongqing 400715, China
  • Online:2011-07-15 Published:2011-07-02

摘要: 以发酵萝卜为研究对象,系统测定酵母菌数量、种类的变化,并进行鉴定,同时,研究发酵泡菜低温贮藏酵母菌的动态变化。结果表明:酵母菌数量在4℃贮藏15d时下降明显,由4.67×102CFU/g下降至13CFU/g;贮藏第1天分离得到酵母菌4株分别为近平滑假丝酵母(Candida parapsilosis)、异常汉逊酵母(Hansenula anomala)、瘦果红酵母(Rhodotorula acheniorum)和异酒香酵母(Brettanomyces anomalus),贮藏30d只分离得一株瘦果红酵母;发现糖添加量是影响低温贮藏泡菜风味的主要因素,该研究对发酵蔬菜的质量控制具有指导作用。

关键词: 发酵蔬菜, 酵母菌, 数量, 鉴定

Abstract: Pickled radish was tested for dynamic changes in yeast count and species during storage at 4 ℃. The results showed that after 15-day storage, yeast count in pickled radish exhibited an obvious reduction from 4.67 × 102 to 13 CFU/g. Four yeast strains were isolated from 1-day stored samples and identified as Candida parapsilosis, Hansenula anomala, Rhodotorula acheniorum and Brettanomyces anomalus. However, only Rhodotorula acheniorum was isolated and identified in 30-day stored samples. Moreover, the amount of sugar addition had a great impact on the flavor of pickled radish during 4 ℃ storage. These findings collectively provide a useful guidance for the quality control of pickled vegetables.

Key words: pickled vegetables, yeast, identification, low temperature, storage

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