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乳业科学与技术 ›› 2021, Vol. 44 ›› Issue (6): 45-50.DOI: 10.15922/j.cnki.jdst.2021.06.009

• 专题论述 • 上一篇    下一篇

海藻糖对乳酸菌保护机制的研究进展

杨友馨,王瑞雪,王俊国   

  1. 内蒙古农业大学食品科学与工程学院，乳品生物技术与工程教育部重点实验室，农业农村部奶制品加工重点实验室，内蒙古 呼和浩特 010018
  • 出版日期:2021-11-01 发布日期:2022-03-23
  • 基金资助:
    国家自然科学基金地区科学基金项目（31660456）

Progress in Research on the Protective Mechanism of Trehalose on Lactic Acid Bacteria

YANG Youxin, WANG Ruixue, WANG Junguo   

  1. Key Laboratory of Dairy Products Processing, Ministry of Agriculture and Rural Affairs, Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
  • Online:2021-11-01 Published:2022-03-23

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摘要： 海藻糖是一种广泛存在于生物体中的非还原性二糖，具有独特的生物学特性，在医药、农业和食品等领域对细胞和生物分子都起到重要的保护作用。乳酸菌作为食品发酵工业中的重要微生物，近年来逐渐成为研究热点。为了进一步探究海藻糖对于乳酸菌的保护机制，本文综述国内外学者关于海藻糖对生物分子的保护机理及其在保护乳酸菌抵御环境胁迫中的应用。海藻糖对生物分子的保护机理存在4 种假说：“水替代”假说、“玻璃态”假说、优先排阻学说和分子间协同作用学说；海藻糖能够对乳酸菌在脱水胁迫、高温胁迫、冷冻胁迫及氧化胁迫等恶劣环境下起到一定的保护作用。本文为今后将海藻糖作为保护剂，提高乳酸菌对不利环境的抗性提供了理论依据。

关键词: 海藻糖；乳酸菌；胁迫；保护机制；研究进展

Abstract: Trehalose is a non-reducing disaccharide widely present in organisms. It has unique biological characteristics and plays an important role in protecting cells and biomolecules in many fields such as medicine, agriculture and food. In recent years, as an important microorganism in the food fermentation industry, lactic acid bacteria (LAB) have gradually become a research hotspot. In order to drive further research on the protective mechanism of trehalose on LAB, this article reviews recent studies on the protective mechanism of trehalose on biomolecules and its application in protecting LAB from environmental stress. Four hypotheses explaining the protection mechanism of trehalose on biomolecules have been proposed: water substitution, glass state, priority exclusion and intermolecular synergism. Trehalose can protect LAB from harsh environments such as dehydration stress, high temperature stress, freezing stress and oxidative stress. This article will provide a theoretical basis for applying trehalose as a protective agent to improve the resistance of LAB to adverse environments.

Key words: trehalose; lactic acid bacteria; stress; protection mechanism; progress

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