LAPSE:2021.0633
Published Article
LAPSE:2021.0633
Antimicrobial Resistance of Lactobacillus johnsonii and Lactobacillus zeae in Raw Milk
Jana Výrostková, Ivana Regecová, Mariana Kováčová, Slavomír Marcinčák, Eva Dudriková, Jana Maľová
July 26, 2021
Lactobacillus johnsonii and Lactobacillus zeae are among the lactobacilli with probiotic properties, which occur in sour milk products, cheeses, and to a lesser extent in raw milk. Recently, resistant strains have been detected in various species of lactobacilli. The aim of the study was to determine the incidence of resistant Lactobacillus johnsonii and Lactobacillus zeae strains in various types of raw milk. A total of 245 isolates were identified by matrix-assisted laser desorption/ionization mass spectrometry and polymerase chain reaction methods as Lactobacillus sp., of which 23 isolates of Lactobacillus johnsonii and 18 isolates of Lactobacillus zeae were confirmed. Determination of susceptibility to selected antibiotics was performed using the E-test and broth dilution method, where 7.3% of lactobacilli strains were evaluated as ampicillin-resistant, 14.7% of isolates as erythromycin-resistant, and 4.9% of isolates as clindamycin-resistant. The genus Lactobacillus johnsonii had the highest resistance to erythromycin (34.8%), similar to Lactobacillus zeae (33.3%). Of the 41 isolates, the presence of the gene was confirmed in five Lactobacillus johnsonii strains and in two strains of Lactobacillus zeae. The presence of resistant strains of Lactobacillus johnsonii and Lactobacillus zeae is a potential risk in terms of spreading antimicrobial resistance through the food chain.
Keywords
antimicrobial resistance, Lactobacillus johnsonii, Lactobacillus zeae, MALDI-TOF-MS, milk, PCR
Suggested Citation
Výrostková J, Regecová I, Kováčová M, Marcinčák S, Dudriková E, Maľová J. Antimicrobial Resistance of Lactobacillus johnsonii and Lactobacillus zeae in Raw Milk. (2021). LAPSE:2021.0633
Author Affiliations
Výrostková J: Department of Food Hygiene, Technology and Safety, The University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, 041 81 Košice, Slovakia
Regecová I: Department of Food Hygiene, Technology and Safety, The University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, 041 81 Košice, Slovakia
Kováčová M: Department of Food Hygiene, Technology and Safety, The University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, 041 81 Košice, Slovakia
Marcinčák S: Department of Food Hygiene, Technology and Safety, The University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, 041 81 Košice, Slovakia [ORCID]
Dudriková E: Department of Food Hygiene, Technology and Safety, The University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, 041 81 Košice, Slovakia
Maľová J: Department of Food Hygiene, Technology and Safety, The University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, 041 81 Košice, Slovakia [ORCID]
Journal Name
Processes
Volume
8
Issue
12
Article Number
E1627
Year
2020
Publication Date
2020-12-10
Published Version
ISSN
2227-9717
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Original Submission
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PII: pr8121627, Publication Type: Journal Article
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LAPSE:2021.0633
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doi:10.3390/pr8121627
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Jul 26, 2021
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Jul 26, 2021
 
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Calvin Tsay
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