Rhizosphere bacterial exopolysaccharides: composition, biosynthesis, and their potential applications

IF 2.3 3区生物学 Q3 MICROBIOLOGY

Archives of Microbiology Pub Date : 2024-08-28 DOI:10.1007/s00203-024-04113-1

Thuy-Trang Pham, Thanh-Dung Nguyen, Thi-Tho Nguyen, Minh-Nhut Pham, Phu-Tho Nguyen, To-Uyen Thi Nguyen, Thanh-Tam Ngoc Huynh, Huu-Thanh Nguyen

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Abstract

Bacterial exopolysaccharides (EPS) are biopolymers of carbohydrates, often released from cells into the extracellular environment. Due to their distinctive physicochemical properties, biocompatibility, biodegradability, and non-toxicity, EPS finds applications in various industrial sectors. However, the need for alternative EPS has grown over the past few decades as lactic acid bacteria’s (LAB) low-yield EPS is unable to meet the demand. In this case, rhizosphere bacteria with the diverse communities in soil leading to variations in composition and structure, are recognized as a potential source of EPS applicable in various industries. In addition, media components and cultivation conditions have an impact on EPS production, which ultimately affects the quantity, structure, and biological functions of the EPS. Therefore, scientists are currently working on manipulating bacterial EPS by developing cultures and applying abiotic and biotic stresses, so that better production of exopolysaccharides can be attained. This review highlights the composition, biosynthesis, and effects of environmental factors on EPS production along with the potential applications in different fields of industry. Ultimately, an overview of potential future paths and tactics for improving EPS implementation and commercialization is pointed out.

Graphical Abstract

Abstract Image

查看原文本刊更多论文

根瘤菌外多糖：成分、生物合成及其潜在应用。

细菌外多糖（EPS）是碳水化合物的生物聚合物，通常从细胞释放到细胞外环境中。由于其独特的物理化学特性、生物相容性、生物可降解性和无毒性，EPS 被广泛应用于各个工业领域。然而，由于乳酸菌（LAB）的低产 EPS 无法满足需求，过去几十年来对替代 EPS 的需求不断增长。在这种情况下，根瘤菌由于在土壤中具有多种群落，其组成和结构也各不相同，因此被认为是适用于各行各业的 EPS 的潜在来源。此外，培养基成分和培养条件也会影响 EPS 的产生，最终影响 EPS 的数量、结构和生物功能。因此，科学家们目前正致力于通过培养和施加非生物和生物胁迫来操纵细菌 EPS，从而获得更好的外多糖产量。本综述重点介绍了 EPS 的组成、生物合成、环境因素对 EPS 产量的影响以及在不同工业领域的潜在应用。最后，综述了未来改善 EPS 实施和商业化的潜在途径和策略。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Archives of Microbiology 生物-微生物学

CiteScore

4.90

自引率

3.60%

发文量

601

审稿时长

3 months

期刊介绍： Research papers must make a significant and original contribution to microbiology and be of interest to a broad readership. The results of any experimental approach that meets these objectives are welcome, particularly biochemical, molecular genetic, physiological, and/or physical investigations into microbial cells and their interactions with their environments, including their eukaryotic hosts. Mini-reviews in areas of special topical interest and papers on medical microbiology, ecology and systematics, including description of novel taxa, are also published. Theoretical papers and those that report on the analysis or ''mining'' of data are acceptable in principle if new information, interpretations, or hypotheses emerge.