ANTIBACTERIAL ACTIVITY OF LACTIC ACID BACTERIA ISOLATED FROM BULGARIAN HOMEMADE COW AND SHEEP YOGHURTS

Stojanovski, Saso and Gacovski, Zivko and Moncheva, Penka and Chipeva, Valentina and Iliev, Ilia and Vitanova Ivanova, Iskra (2015) ANTIBACTERIAL ACTIVITY OF LACTIC ACID BACTERIA ISOLATED FROM BULGARIAN HOMEMADE COW AND SHEEP YOGHURTS. Animal studies & Veterinary medicine, 5 (5).

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Abstract

In this study, 18 homemade cow and sheep yoghurt samples were collected from different regions of Bulgaria for isolation and screening of lactic acid bacteria for antimicrobial activity. Totally 17 strains were isolated and identified as Lactobacillus spp. based on their growth, Gram stain, catalase and oxidase activity. The isolates were examined for their antibacterial activity against Bacillus subtilis, Bacillus cereus and Escherichia coli using well diffusion method. Six strains showed inhibitory activity against Gram-negative E. coli and only one against Gram- positive B. subtilis and B. cereus using neutralized cell free cultures supernatants. The results of the present study indicate that Bulgarian homemade yoghurts are potential source of functional starter cultures for production of dairy products. Key words: homemade yogurt, functional starter cultures, Lactobacillus spp., antibacterial activity

Item Type: Article
Subjects: Scientific Fields (Frascati) > Agricultural Sciences > Veterinary science
Divisions: Faculty of Veterinary Medicine
Depositing User: Mr Aleksandar Lozanovski
Date Deposited: 06 May 2021 07:26
Last Modified: 06 May 2021 07:26
URI: http://eprints.uklo.edu.mk/id/eprint/6371

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