The Metabiotic Properties of Lactobacillus acidophilus Strains Included in Complex Starter Cultures for Probiotic Dairy Products

IF 1 4区生物学 Q4 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Applied Biochemistry and Microbiology Pub Date : 2023-12-14 DOI:10.1134/S0003683823080100

L. G. Stoyanova, S. D. Dbar, I. S. Polyanskaya

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Abstract

The metabiotic properties of six Lactobacillus acidophilus strains, included in symbiotic starter cultures for the production of probiotic lactic acid products, have been studied. The antimicrobial activity spectrum of these strains in relation to contaminants that can develop during fermentation was studied. The time of cultivation of strains required for the maximum accumulation of cells and antimicrobial metabolites was determined. Activity was compared against test microorganisms of living lactobacillus cultures and lysates formed during fermentation or under stressful conditions of the gastrointestinal tract. The bactericidal activity of a number of strains in the lysates was up to 40% higher than in the culture broth. Fungicidal activity was manifested at the later stages of the lactobacilli growth. The most active strains can be recommended as probiotic cultures with metabolic properties suitable for inclusion in complex starter cultures when creating functional food and pharmaceutical products.

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用于益生菌乳制品的复合启动培养基中的嗜酸乳杆菌菌株的代谢特性

研究了六种嗜酸乳杆菌菌株的代谢特性，包括在生产益生菌乳酸产品的共生发酵剂中。研究了这些菌株对发酵过程中可能产生的污染物的抑菌活性谱。确定了培养菌株所需的最大细胞积累和抗菌代谢物的时间。将活性与发酵过程中或胃肠道应激条件下形成的活乳酸杆菌培养物和裂解物的试验微生物进行比较。许多菌株在裂解液中的杀菌活性比在培养液中的杀菌活性高出40%。杀真菌活性在乳酸菌生长的后期表现出来。最活跃的菌株可以推荐作为具有代谢特性的益生菌培养物，适合在生产功能性食品和药品时包含在复杂的发酵剂中。

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来源期刊

Applied Biochemistry and Microbiology 生物-生物工程与应用微生物

CiteScore

1.70

自引率

12.50%

发文量

审稿时长

6-12 weeks

期刊介绍： Applied Biochemistry and Microbiology is an international peer reviewed journal that publishes original articles on biochemistry and microbiology that have or may have practical applications. The studies include: enzymes and mechanisms of enzymatic reactions, biosynthesis of low and high molecular physiologically active compounds; the studies of their structure and properties; biogenesis and pathways of their regulation; metabolism of producers of biologically active compounds, biocatalysis in organic synthesis, applied genetics of microorganisms, applied enzymology; protein and metabolic engineering, biochemical bases of phytoimmunity, applied aspects of biochemical and immunochemical analysis; biodegradation of xenobiotics; biosensors; biomedical research (without clinical studies). Along with experimental works, the journal publishes descriptions of novel research techniques and reviews on selected topics.