Safety assessment and antimicrobial potential of Enterococcus spp. isolated from raw goat milk and cheese

This study aimed to assess the safety and antimicrobial properties of Enterococcus species isolated from raw goat milk and cheese. The isolates were evaluated for hemolytic activity on blood agar plates and antibiotic susceptibility by determining the minimum inhibitory concentrations (MICs) of five...

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Main Authors: Grujović Mirjana Ž., Žugić-Petrović Tanja, Marković Katarina G.
Format: Article
Language:English
Published: University of Kragujevac, Faculty of Science 2024-01-01
Series:Kragujevac Journal of Science
Subjects:
Online Access:https://scindeks-clanci.ceon.rs/data/pdf/1450-9636/2024/1450-96362402049G.pdf
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author Grujović Mirjana Ž.
Žugić-Petrović Tanja
Marković Katarina G.
author_facet Grujović Mirjana Ž.
Žugić-Petrović Tanja
Marković Katarina G.
author_sort Grujović Mirjana Ž.
collection DOAJ
description This study aimed to assess the safety and antimicrobial properties of Enterococcus species isolated from raw goat milk and cheese. The isolates were evaluated for hemolytic activity on blood agar plates and antibiotic susceptibility by determining the minimum inhibitory concentrations (MICs) of five antibiotics: ampicillin, tetracycline, gentamicin, streptomycin, and vancomycin. Furthermore, the antagonistic activity of the Enterococcus strains against indicator bacteria was assessed using the agar-well diffusion method. Hemolytic activity results demonstrated a-hemolysis in all isolates. Among the 71 Enterococcus isolates examined, 32.39% exhibited resistance to at least one antibiotic, with resistance profiles varying between species. Enterococcus faecalis isolates predominantly showed resistance to vancomycin, ampicillin, tetracycline, and gentamicin, while Enterococcus faecium and Enterococcus hirae displayed resistance to vancomycin with different susceptibility patterns to the other antibiotics. The antagonistic assays revealed a broad spectrum of inhibitory effects, with variation in inhibition zone diameters. These findings provide valuable insights into the safety and antimicrobial potential of Enterococcus spp. from raw goat milk and cheese and give an insight into their potential applications in the food industry.
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language English
publishDate 2024-01-01
publisher University of Kragujevac, Faculty of Science
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series Kragujevac Journal of Science
spelling doaj-art-b3d05fe6c51841f095cbd494068175002025-01-08T16:26:54ZengUniversity of Kragujevac, Faculty of ScienceKragujevac Journal of Science1450-96362466-55092024-01-01462496210.5937/KgJSci2402049G1450-96362402049GSafety assessment and antimicrobial potential of Enterococcus spp. isolated from raw goat milk and cheeseGrujović Mirjana Ž.0https://orcid.org/0000-0002-6174-6717Žugić-Petrović Tanja1https://orcid.org/0000-0001-8237-1080Marković Katarina G.2https://orcid.org/0000-0003-0105-6447University of Kragujevac, Institute for Information Technologies, Kragujevac, SerbiaBio Food Viking, Sokobanja, SerbiaUniversity of Kragujevac, Institute for Information Technologies, Kragujevac, SerbiaThis study aimed to assess the safety and antimicrobial properties of Enterococcus species isolated from raw goat milk and cheese. The isolates were evaluated for hemolytic activity on blood agar plates and antibiotic susceptibility by determining the minimum inhibitory concentrations (MICs) of five antibiotics: ampicillin, tetracycline, gentamicin, streptomycin, and vancomycin. Furthermore, the antagonistic activity of the Enterococcus strains against indicator bacteria was assessed using the agar-well diffusion method. Hemolytic activity results demonstrated a-hemolysis in all isolates. Among the 71 Enterococcus isolates examined, 32.39% exhibited resistance to at least one antibiotic, with resistance profiles varying between species. Enterococcus faecalis isolates predominantly showed resistance to vancomycin, ampicillin, tetracycline, and gentamicin, while Enterococcus faecium and Enterococcus hirae displayed resistance to vancomycin with different susceptibility patterns to the other antibiotics. The antagonistic assays revealed a broad spectrum of inhibitory effects, with variation in inhibition zone diameters. These findings provide valuable insights into the safety and antimicrobial potential of Enterococcus spp. from raw goat milk and cheese and give an insight into their potential applications in the food industry.https://scindeks-clanci.ceon.rs/data/pdf/1450-9636/2024/1450-96362402049G.pdfenterococciantibiotic sensitivityhemolytic activityantimicrobial activitygoat cheese
spellingShingle Grujović Mirjana Ž.
Žugić-Petrović Tanja
Marković Katarina G.
Safety assessment and antimicrobial potential of Enterococcus spp. isolated from raw goat milk and cheese
Kragujevac Journal of Science
enterococci
antibiotic sensitivity
hemolytic activity
antimicrobial activity
goat cheese
title Safety assessment and antimicrobial potential of Enterococcus spp. isolated from raw goat milk and cheese
title_full Safety assessment and antimicrobial potential of Enterococcus spp. isolated from raw goat milk and cheese
title_fullStr Safety assessment and antimicrobial potential of Enterococcus spp. isolated from raw goat milk and cheese
title_full_unstemmed Safety assessment and antimicrobial potential of Enterococcus spp. isolated from raw goat milk and cheese
title_short Safety assessment and antimicrobial potential of Enterococcus spp. isolated from raw goat milk and cheese
title_sort safety assessment and antimicrobial potential of enterococcus spp isolated from raw goat milk and cheese
topic enterococci
antibiotic sensitivity
hemolytic activity
antimicrobial activity
goat cheese
url https://scindeks-clanci.ceon.rs/data/pdf/1450-9636/2024/1450-96362402049G.pdf
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AT zugicpetrovictanja safetyassessmentandantimicrobialpotentialofenterococcussppisolatedfromrawgoatmilkandcheese
AT markovickatarinag safetyassessmentandantimicrobialpotentialofenterococcussppisolatedfromrawgoatmilkandcheese