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Antibiotic susceptibility and antimicrobial activity of autochthonous starter cultures as safety parameters for fresh cheese production (CROSBI ID 197773)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Leboš Pavunc, Andreja ; Kos, Blaženka ; Beganović, Jasna ; Uroić, Ksenija ; Bučan, Dora ; Šušković, Jagoda Antibiotic susceptibility and antimicrobial activity of autochthonous starter cultures as safety parameters for fresh cheese production // Mljekarstvo, 63 (2013), 4; 185-194

Podaci o odgovornosti

Leboš Pavunc, Andreja ; Kos, Blaženka ; Beganović, Jasna ; Uroić, Ksenija ; Bučan, Dora ; Šušković, Jagoda

engleski

Antibiotic susceptibility and antimicrobial activity of autochthonous starter cultures as safety parameters for fresh cheese production

The antibiotic susceptibility and antimicrobial activity, as food safety parameters important for application of autochthonous lactic acid bacteria (LAB), that previously satisfied technological criteria for functional starter cultures in fresh cheese production were examined. Soluble whole cell protein patterns of autochthonous LAB strains from fresh cheese, obtained by SDS-PAGE, revealed the presence of two predominant strains, which were identified as Lactobacillus fermentum A8 and Enterococcus faecium A7. These strains were not resistant and shown susceptibility to antibiotics: ampicillin, bacitracin, penicillin G, azithromycin, chloramphenicol, clarithromycin, clindamycin, spiramycin, tetracycline, streptomycin, neomycin, gentamicin, erythromycin, rifampicin and novobiocin. Lb. fermentum A8 strain displayed phenotypic resistance to vancomycin, but this resistance is intrinsic, not transferable and it is acceptable from the safety aspect. The capacity of Lb. fermentum A8 and Ec. faecium A7 to inhibit growth of test-microorganisms Listeria monocytogenes ATCC 11911, Escherichia coli 3014, Salmonella enterica serovar Typhimurium FP1 and Staphylococcus aureus 3048, was also analysed. According to obtained results, Lb. fermentum A8 and Ec. faecium A7 are safe from the aspect of spreading antibiotic resistance and could be useful as bioprotective cultures that inhibit common bacterial food contaminants, including L. monocytogenes.

antimicrobial activity; antibiotic susceptibility; autochthonous starter cultures

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Podaci o izdanju

63 (4)

2013.

185-194

objavljeno

0026-704X

Povezanost rada

Biotehnologija

Indeksiranost