食品科学 ›› 2018, Vol. 39 ›› Issue (3): 295-301.doi: 10.7506/spkx1002-6630-201803044

• 专题论述 • 上一篇    下一篇

乳酸菌耐盐分子机制研究进展

林松洋1,郝利民2,*,刘 鑫1,鲁来政3,康巧珍1,鲁吉珂1,*   

  1. 1.郑州大学生命科学学院,河南 郑州 450001;2.军事科学院军需工程技术研究所,北京 100010;3.郑州明德生物科技有限公司,河南 郑州 450001
  • 出版日期:2018-02-15 发布日期:2018-01-30
  • 基金资助:
    国家自然科学基金青年科学基金项目(31201342);国家自然科学基金面上项目(81373119;81571526); 河南省自然科学基金面上项目(162300410305);郑州大学优秀青年教师发展基金项目(1421311080); 军队科研项目(BX115C007)

Progress in Molecular Mechanism of Salt Tolerance in Lactic Acid Bacteria

LIN Songyang1, HAO Limin2,*, LIU Xin1, LU Laizheng3, KANG Qiaozhen1, LU Jike1,*   

  1. 1. School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China; 2. The Quartermaster Equipment Institute, Academy of Military Sciences PLA China, Beijing 100010, China; 3. Zhengzhou Mindtek Biotechnology Co. Ltd., Zhengzhou 450001, China
  • Online:2018-02-15 Published:2018-01-30

摘要: 乳酸菌广泛应用于食品和发酵行业。在酱油、熏肉、泡菜等发酵食品的生产过程中,乳酸菌的生长常受到 高盐浓度的影响。盐胁迫引起的渗透压变化会引起乳酸菌细胞结构损伤,导致细胞生理代谢活动紊乱甚至死亡。因 此,乳酸菌在盐胁迫条件下生存、生长和代谢的能力在食品发酵过程中是非常重要的。本文就乳酸菌的耐盐机制进 行阐释,以期为乳酸菌科学研究及食品发酵工业应用提供参考。

关键词: 乳酸菌, 盐胁迫, 分子机制, 相容性溶质, 离子运输, 应激调控系统

Abstract: Lactic acid bacteria (LAB) are widely used in food and fermentation industries. Bacterial growth is often affected by high salt concentration during the production of fermented foods such as soy sauce, bacon and pickles. The change in osmotic pressure induced by salt stress can cause damage to cell structure, leading to cell physiological and metabolic disorders or even death. Therefore, the survival, growth and metabolic capacity of LAB under salt stress are very important during food fermentation. In this article, the mechanism of salt tolerance in LAB is reviewed, which will provide a theoretical basis for scientific research of lactic acid bacteria and their industrial application in food fermentation.

Key words: lactic acid bacteria, salt stress, molecular mechanism, compatible solutes, ion transport, stress regulation system

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