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中国农学通报 ›› 2024, Vol. 40 ›› Issue (9): 66-74.doi: 10.11924/j.issn.1000-6850.casb2023-0362

所属专题: 生物技术

• 资源·环境·生态·土壤 • 上一篇    下一篇

微生物胞外多糖在环境中的应用

杨义1(), 赵守祺1, 葛菁萍1,2, 宋刚1,2(), 杜仁鹏1,2()   

  1. 1 黑龙江大学生命科学学院,农业微生物技术教育部工程研究中心,黑龙江省寒区植物基因与生物发酵重点实验室,黑龙江省普通高校微生物重点实验室,哈尔滨 150080
    2 河北环境工程学院,河北省农业生态安全重点实验室,河北秦皇岛 066102
  • 收稿日期:2023-04-23 修回日期:2023-07-15 出版日期:2024-03-25 发布日期:2024-03-22
  • 通讯作者:
    宋刚,男,1979年出生,黑龙江七台河人,教授,硕士,研究方向:微生物资源挖掘与利用。通信地址:150080 黑龙江哈尔滨南岗区学府路74号生命科学学院,Tel:0451-86609134,E-mail:
    杜仁鹏,男,1989年出生,黑龙江大兴安岭人,副教授,博士,研究方向:微生物次生代谢产物与生理。通信地址:150080 黑龙江哈尔滨南岗区学府路74号生命科学学院,Tel:0451-86609134,E-mail:
  • 作者简介:

    杨义,男,1999年出生,湖南人,硕士研究生,研究方向:微生物次生代谢产物与生理。通信地址:1150080 黑龙江哈尔滨南岗区学府路74号生命科学学院,Tel:0451-86609134,E-mail:

  • 基金资助:
    黑龙江省自然科学基金优秀青年基金项目“乳酸明串株菌群体感应和第二信使介导右旋糖酐合成的信号通路研究”(YQ2021C030); 中国博士后科学基金资助项目“c-di-GMP和c-di-AMP介导乳酸明串珠菌L2胞外多糖合成的分子调控机制研究”(2022MD713755); 黑龙江省博士后资助项目“柠檬明串珠菌胞外多糖合成途径中信号网络的作用机制研究”(LBH-Z21082); ‘新时代龙江优秀硕士、博士学位论文’项目“肠膜明串珠菌DRP105右旋糖酐生物合成机制的研究”(LJYXL2022-020); 黑龙江省省属高等学校基本科研业务费科研项目“c-di-AMP调控肠膜明串珠菌DRP105胞外多糖的生物合成机理”(2022-KYYWF-1075); 河北省农业生态安全重点实验室开放基金课题项目“乳酸菌胞外多糖的分离纯化及构效关系研究”(2023SYSJJ17)

Application of Microbial Exopolysaccharides in Environment

YANG Yi1(), ZHAO Shouqi1, GE Jingping1,2, SONG Gang1,2(), DU Renpeng1,2()   

  1. 1 School of Life Sciences, Heilongjiang University/ Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education/ Heilongjiang Provincial Key Laboratory of Plant Genetic Engineering and Biological Fermentation Engineering for Cold Region/ Key Laboratory of Microbiology, College of Heilongjiang Province, Harbin 150080
    2 Hebei University of Environmental Engineering/ Hebei Key Laboratory of Agroecological Safety, Qinhuangdao, Hebei 066102
  • Received:2023-04-23 Revised:2023-07-15 Published:2024-03-25 Online:2024-03-22

摘要:

微生物胞外多糖具有可再生、可生物降解、吸附性强、抗炎、抗氧化和抗病毒等重要特性,在食品、医药、化妆品和环境保护等领域具有多种用途。先前的研究主要集中在微生物胞外多糖的分离纯化及结构研究,有关微生物胞外多糖结构和功能的关系,以及胞外多糖在环境保护上的报道较少。为了阐明微生物胞外多糖构效关系,拓展其应用范围,综述了微生物胞外多糖的单糖组成、分子量、官能团、糖苷键、表面形态对其功能的影响,并归纳了微生物胞外多糖在污水处理、土壤修复、抗生素消除等环境保护领域的潜在应用。由于微生物胞外多糖产量和生物活性较低,限制其广泛的工业化应用,通过基因工程技术、结构修饰和优化发酵条件等手段有望提高微生物胞外多糖的产量,促进其在环境保护中的开发和应用。

关键词: 微生物胞外多糖, 构效关系, 生物修复, 环境保护, 应用

Abstract:

Microbial exopolysaccharides have important characteristics such as renewability, biodegradability, strong adsorption, anti-inflammatory, antioxidant, and antiviral properties. They have multiple applications in fields of food, pharmaceuticals, cosmetics, and environmental protection. Previous studies mainly focused on the isolation, purification and structure of microbial exopolysaccharides, but there were few reports on the relationship between the structure and function of microbial exopolysaccharides and the role of exopolysaccharides in environmental protection. In order to elucidate the structure-function relationship of microbial exopolysaccharides and expand their applications, this article reviews the impacts of monosaccharide composition, molecular mass, functional groups, glycosidic linkages, and surface morphology on their functions. Furthermore, potential applications of microbial exopolysaccharides in wastewater treatment, soil remediation, and antibiotic elimination for environmental protection are summarized. Due to the low yield and biological activity of microbial exopolysaccharides, their extensive industrial application is limited. It is expected that the yield of microbial exopolysaccharides can be enhanced through genetic engineering techniques, structural modification, and optimization of fermentation conditions and promote their development and application in environmental protection.

Key words: microbial exopolysaccharides, structure-function, bioremediation, environment protection, application