Unveiling the Potential of Lactic Acid Bacteria from Serbian Goat Cheese

• Published in: Foods Vol. 13; no. 13; p. 2065
• Main Authors: Grujović, Mirjana Ž, Marković, Katarina G, Morais, Susana, Semedo-Lemsaddek, Teresa
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 28.06.2024
• Subjects: Acidification; Acids; Ampicillin; Antibiotics; Antimicrobial agents; Bacteria; Biofilms; Cheese; Cultural heritage; Dairy products; Diacetyl; Drug resistance; E coli; Fermentation; Food products; Food quality; Gentamicin; goat cheese; Goats; Health risks; Hemolysis; Hygiene; Lactic acid; Lactic acid bacteria; Lactose; Listeria; Metabolites; Methylene blue; Microbiota; Microorganisms; Milk; Pathogens; Probiotics; Product quality; Proteolysis; Safety; safety assessment; Salmonella; Sensitivity analysis; Strains (organisms); Streptomycin; technological features; Vancomycin; Serbia; safety assessment; lactic acid bacteria; technological features; goat cheese
• DOI: 10.3390/foods13132065
• ISSN: 2304-8158

This study aimed to unleash the potential of indigenous lactic acid bacteria (LAB) originating from traditionally made Serbian goat cheese. Following the isolation and identification of the LAB, the safety aspects of the isolates were evaluated through tests for hemolytic activity and antibiotic sensitivity. The selected isolates were then tested for various technological properties, including growth in methylene blue, proteolytic activity, acidification, curd formation ability in both pure and enriched goat milk, diacetyl production, antagonistic potential against other LAB, and biofilm formation ability. The results indicated that spp., spp., and spp. did not exhibit α or β hemolysis, while enterococci displayed α hemolysis. A higher number of isolates demonstrated sensitivity to ampicillin, tetracycline, and streptomycin, while sensitivity to gentamicin and vancomycin was strain-dependent. Based on the evaluation of technological properties, M-1 and C7-7, C7-8, and C14-5 showed promising characteristics. Additionally, subsp. strains C0-14 and C21-8 emerged as promising candidates with notable technological properties. Notably, certain indigenous strains LAB exhibit promising technological properties and safety profiles. These characteristics make them suitable candidates for use as starter or adjunct cultures in goat's milk cheese production, potentially enhancing the quality and safety of the cheese as well as hygiene practices among small-scale dairy producers.