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农学学报 ›› 2021, Vol. 11 ›› Issue (6): 68-72.doi: 10.11923/j.issn.2095-4050.cjas20191200319

所属专题: 生物技术

• 农业工程/农业机械/生物技术/食品科学 • 上一篇    下一篇

3株酿酒酵母发酵过程中游离氨基酸含量变化分析

裴芳艺(), 薛迪, 马岩石, 刘宇超, 刘得水, 李慧, 刘韩()   

  1. 齐齐哈尔医学院,黑龙江齐齐哈尔 161000
  • 收稿日期:2019-12-25 修回日期:2020-02-13 出版日期:2021-06-20 发布日期:2021-06-28
  • 通讯作者: 刘韩 E-mail:fangyipei@126.com;516600654@qq.com
  • 作者简介:裴芳艺,女,1990年出生,黑龙江齐齐哈尔人,助理研究员,硕士,研究方向:微生物学。通信地址:161000 黑龙江省齐齐哈尔市建华区卜奎北大街333号 齐齐哈尔医学院,Tel:0452-2663875,E-mail: fangyipei@126.com
  • 基金资助:
    齐齐哈尔医学科学院面上基金项目“氧化葡糖杆菌胞外多糖的分离、鉴定及抗氧化性质研究”(QMSI2020M-07);黑龙江省教育厅项目 “gpd基因的缺失对酿酒酵母单倍体产2,3-丁二醇的影响”(2017-KYYWF-0699);黑龙江省教育厅项目“产B族维生素乳酸菌的筛选及生物特性研究”(2016-KYYWF-0890)

Free Amino Acids in 3 Saccharomyces cerevisiae During Fermentation Culture: Content Analysis

Pei Fangyi(), Xue Di, Ma Yanshi, Liu Yuchao, Liu Deshui, Li Hui, Liu Han()   

  1. Qiqihar Medical University, Qiqihar 161000, Heilongjiang, China
  • Received:2019-12-25 Revised:2020-02-13 Online:2021-06-20 Published:2021-06-28
  • Contact: Liu Han E-mail:fangyipei@126.com;516600654@qq.com

摘要:

为了进一步研究酿酒酵母(Saccharomyces cerevisiae)游离氨基酸丰富的生物学功能,以适应对新型S. cerevisiae食品资源的开发应用。本研究以3株S. cerevisiae为出发菌株,利用全自动氨基酸分析仪对 S. cerevisiae发酵过程中游离氨基酸的组成及含量进行了测定与分析。结果表明:3株S. cerevisiae发酵液中均含有17种游离氨基酸,但游离氨基酸组成和含量存在明显差异。发酵末期,S. cerevisiae P1发酵液中的游离氨基酸总量最高,而S. cerevisiae 32788发酵液中必需氨基酸含量最高。S. cerevisiae 1946发酵体系中,游离氨基酸的含量先增加后减少,在发酵末期,游离氨基酸总量和必需氨基酸含量均低于另外2种S. cerevisiae。本研究结果为S. cerevisiae的营养价值评价以及为S. cerevisiae功能食品的研究提供一定的科学依据。

关键词: 酿酒酵母, 发酵培养, 游离氨基酸, 必需氨基酸, 含量

Abstract:

To further study the biological function of free amino acids of Saccharomyces cerevisiae and adapt to the development and application of new S. cerevisiae food resources, the composition and contents of free amino acids produced by three S. cerevisiae were analyzed with a fully automated amino acid analyzer. The results showed that, 17 kinds of free amino acids were found in the three S. cerevisiae fermentation broths, but there were significant differences in the composition and content of free amino acids. At the end of the fermentation, the total amount of free amino acids in the S. cerevisiae P1 fermentation broth was the highest. The S. cerevisiae 32788 fermentation broth had the highest essential amino acid content. The content of free amino acid increased first and then decreased with the fermentation time in the S. cerevisiae 1946. At the end of fermentation, the total amount of free amino acids and essential amino acids were lower than the other two S. cerevisiae. This study provides a basis for nutritional value evaluation of S. cerevisia and further study on S. cerevisia functional foods.

Key words: Saccharomyces cerevisiae, Fermentation Culture, Free Amino Acids, Essential Amino Acid, Content

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