Isolation and evaluation of multi-functional properties of lactic acid bacteria strains derived from canine milk

Bibliographic Details
Title: Isolation and evaluation of multi-functional properties of lactic acid bacteria strains derived from canine milk
Authors: Yunjiang Liu, Yueyan Zeng, Li Chen, Jialiang Xin, Zhijun Zhong, Haifeng Liu, Hualin Fu, Ziyao Zhou, Guangneng Peng
Source: Frontiers in Veterinary Science, Vol 11 (2024)
Publisher Information: Frontiers Media S.A., 2024.
Publication Year: 2024
Collection: LCC:Veterinary medicine
Subject Terms: lactic acid bacteria, canine milk, adhesion, antioxidant capacity, metabolite, Veterinary medicine, SF600-1100
More Details: IntroductionLactic acid bacteria (LAB) are Gram-positive bacteria that produce lactic acid during fermentation, with some strains enhancing host health by modulating the gut microbiota, boosting immune responses, and reducing inflammation.MethodsIn this study, 6 LAB strains were isolated from two dog milk samples, and their probiotic properties were comprehensively evaluated. The evaluation included growth properties, stress resistance, antipathogen activity, adhesion activity, safety assessment, antioxidant capacity, and prebiotic metabolites assessment.ResultsIn comparison to the control strain Lactobacillus rhamnosus LGG, all 6 LAB isolates exhibited favorable probiotic properties. Additionally, the results of the antioxidant tests indicated that these strains demonstrated high tolerance to 0.5 mmol/L H2O2 and exhibited significant scavenging abilities for the free radicals 1,1-diphenyl-2-trinitrophenylhydrazine (DPPH) and hydroxyl (OH−). Furthermore, the 6 LAB isolates were found to produce elevated concentrations of prebiotic metabolites, including exopolysaccharides (EPS), γ-aminobutyric acid (GABA), and bile salt hydrolase (BSH).DiscussionThis study presents a comprehensive analysis of LAB isolates derived from canine milk. These isolates exhibited multifunctional properties, with strain L221 performing the best overall, making it a promising candidate for probiotic use in dogs.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2297-1769
Relation: https://www.frontiersin.org/articles/10.3389/fvets.2024.1505854/full; https://doaj.org/toc/2297-1769
DOI: 10.3389/fvets.2024.1505854
Access URL: https://doaj.org/article/857f59a7742941eeb50af1baa1ad64f0
Accession Number: edsdoj.857f59a7742941eeb50af1baa1ad64f0
Database: Directory of Open Access Journals
More Details
ISSN:22971769
DOI:10.3389/fvets.2024.1505854
Published in:Frontiers in Veterinary Science
Language:English