畜牧与饲料科学 ›› 2023, Vol. 44 ›› Issue (3): 103-108.doi: 10.12160/j.issn.1672-5190.2023.03.015

• 食品科学 • 上一篇    下一篇

内蒙古锡林郭勒盟酸乳清中酵母菌的分离鉴定

郑伟1,康连和1,刘鹏斌2,特日格勒1,李子健1,李星云1,王莉梅1,张园园1,刘秀丽1,史培1,乔健敏1   

  1. 1.内蒙古自治区农牧业科学院,内蒙古 呼和浩特 010031
    2.阿拉善盟农畜产品质量综合检验检测中心,内蒙古 阿拉善左旗 750300
  • 收稿日期:2023-05-09 出版日期:2023-05-30 发布日期:2023-07-12
  • 通讯作者: 乔健敏(1988—),女,副研究员,博士,主要研究方向为乳品生物技术与工程。
  • 作者简介:郑伟(1994—),女,硕士,主要研究方向为乳品生物技术与工程。
  • 基金资助:
    国家自然科学基金项目(32160567);内蒙古自治区科技计划项目(2020GG0093);2019年度内蒙古自治区本级事业单位引进人才科研启动支持项目;鄂尔多斯市科技计划项目(2022YY029)

Isolation and Identification of Yeasts from Sour Whey in Xilin Gol League, Inner Mongolia

ZHENG Wei1,KANG Lianhe1,LIU Pengbin2,Terigele 1,LI Zijian1,LI Xingyun1,WANG Limei1,ZHANG Yuanyuan1,LIU Xiuli1,SHI Pei1,QIAO Jianmin1   

  1. 1. Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences,Hohhot 010031,China
    2. Alagxa League Comprehensive Inspection and Testing Center for Agricultural and Livestock Products Quality,Alagxa Left Banner 750300,China
  • Received:2023-05-09 Online:2023-05-30 Published:2023-07-12

摘要:

[目的]探究内蒙古锡林郭勒盟牧区传统奶酪加工副产物酸乳清中酵母菌的生物多样性。[方法]采用传统微生物分离培养技术从采集自内蒙古锡林郭勒盟的2份酸乳清样本中分离纯化酵母菌,利用ITS基因序列分析方法鉴定种属并构建系统发育树。[结果]从2份酸乳清样本中共分离到18株酵母菌,归属为4个种,分别为酿酒酵母菌(Saccharomyces cerevisiae)(n=2)、发酵毕赤酵母菌(Pichia fermentans)(n=2)、库德里阿兹威氏毕赤酵母菌(Pichia kudriavzevii)(n=2)、马克斯克鲁维酵母菌(Kluyveromyces marxianus)(n=12),其中,马克斯克鲁维酵母菌(Kluyveromyces marxianus)为优势菌种。[结论]该研究揭示了内蒙古锡林郭勒盟牧区传统奶酪加工副产物酸乳清中酵母菌的生物多样性,为酸乳清的综合利用及产业化生产提供了参考。

关键词: 酸乳清, 酵母菌, 生物多样性, 分离鉴定

Abstract:

[Objective] This study aimed to explore the biodiversity of yeasts in sour whey, a by-product of traditional cheese processing in the pastoral area of Xilin Gol League, Inner Mongolia. [Method] The yeasts were isolated and purified from two sour whey samples collected in Xilin Gol League, Inner Mongolia, using traditional isolation and culture technology of microorganisms. The species of the isolated yeast strains was determined by ITS gene sequence analysis, and a phylogenetic tree was constructed. [Result] A total of 18 yeast strains were obtained from the two sour whey samples, belonging to 4 different species, Saccharomyces cerevisiaen=2), Pichia fermentansn=2), Pichia kudriavzeviin=2) and Kluyveromyces marxianusn=12). Among them, Kluyveromyces marxianus was the dominant flora in the sour whey samples. [Conclusion] Our results reveal the biodiversity of yeasts in sour whey collected in Xilin Gol League, Inner Mongolia, and provide references for the comprehensive utilization and industrial production of sour whey.

Key words: sour whey, yeast, biodiversity, isolation and identification

中图分类号: