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表面活性剂介导的生物制造:促进微生物生化产物生产的独特策略。

Surfactant-mediated bio-manufacture: A unique strategy for promoting microbial biochemicals production.

机构信息

School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China.

Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, China.

出版信息

Biotechnol Adv. 2024 Jul-Aug;73:108373. doi: 10.1016/j.biotechadv.2024.108373. Epub 2024 May 3.

Abstract

Biochemicals are widely used in the medicine and food industries and are more efficient and safer than synthetic chemicals. The amphipathic surfactants can interact with the microorganisms and embed the extracellular metabolites, which induce microbial metabolites secretion and biosynthesis, performing an attractive prospect of promoting the biochemical production. However, the commonness and differences of surfactant-mediated bio-manufacture in various fields are largely unexplored. Accordingly, this review comprehensively summarized the properties of surfactants, different application scenarios of surfactant-meditated bio-manufacture, and the mechanism of surfactants increasing metabolites production. Various biochemical productions such as pigments, amino acids, and alcohols could be enhanced using the cloud point and the micelles of surfactants. Besides, the amphiphilicity of surfactants also promoted the utilization of fermentation substrates, especially lignocellulose and waste sludge, by microorganisms, indirectly increasing the metabolites production. The increase in target metabolites production was attributed to the surfactants changing the permeability and composition of the cell membrane, hence improving the secretion ability of microorganisms. Moreover, surfactants could regulate the energy metabolism, the redox state and metabolic flow in microorganisms, which induced target metabolites synthesis. This review aimed to broaden the application fields of surfactants and provide novel insights into the production of microbial biochemicals.

摘要

生物化学物质在医药和食品工业中被广泛应用,它们比合成化学物质更高效、更安全。两亲性表面活性剂可以与微生物相互作用,并嵌入细胞外代谢物,从而诱导微生物代谢物的分泌和生物合成,展现出促进生化生产的诱人前景。然而,表面活性剂介导的生物制造在不同领域中的共性和差异在很大程度上尚未得到探索。因此,本综述全面总结了表面活性剂的性质、表面活性剂介导的生物制造的不同应用场景,以及表面活性剂增加代谢产物生产的机制。通过使用表面活性剂的浊点和胶束,可以增强各种生物化学物质的生产,如色素、氨基酸和醇类。此外,表面活性剂的两亲性还促进了微生物对发酵底物(特别是木质纤维素和剩余污泥)的利用,间接增加了代谢产物的产量。目标代谢产物产量的增加归因于表面活性剂改变了细胞膜的通透性和组成,从而提高了微生物的分泌能力。此外,表面活性剂可以调节微生物中的能量代谢、氧化还原状态和代谢流,从而诱导目标代谢物的合成。本综述旨在拓宽表面活性剂的应用领域,并为微生物生化物质的生产提供新的见解。

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