Evaluation of listeria monocytogenes contamination of raw milk and traditional butter purchased in Amol city and detection of Antibacterial resistance of isolates

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NAJAFI N.; SHARIFI SOLTANI M.; Bozorgi Makerani A.

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Journal Paper

Paper Information

Journal: JOURNAL OF FOOD MICROBIOLOGY Year:2023 | Volume:9 | Issue:4 Page(s): 100-107

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Title

Evaluation of listeria monocytogenes contamination of raw milk and traditional butter purchased in Amol city and detection of Antibacterial resistance of isolates

Author(s)

NAJAFI N. | SHARIFI SOLTANI M. | Bozorgi Makerani A.

Keywords

Listeria monocytogenes

raw milk

traditional butter

Antimicrobial susceptibility

Amol

Abstract

Listeria is one of the most important bacteria that contaminates milk and milk products. The main species that causes listeriosis in humans and animals and is transmitted through contaminated food is Listeria monocytogenes. For this purpose, in order to identify Listeria monocytogenes in raw milk and traditional butter, in the spring of 1400, 40 samples of raw milk (20) and traditional butter (20) were collected from traditional dairy stores in Amol city. The samples were immediately transferred to a food microbiology laboratory in cold condition. The samples were first cultured in peptone water enrichment medium and then the enriched samples were transferred to Palkam Listeria selective agar medium with selective Listeria monocytogenes supplementation. Then antimicrobial susceptibility of Listeria monocytogenes isolates was determined by disk diffusion method using the antibiotics ampicillin, gentamicin, erythromycin, chloramphenicol, tetracycline, and ciprofloxacin. From the total samples, the prevalence of Listeria species in raw milk and butter was 35% and 10%, respectively. The results of antibiotic susceptibility and resistance test of raw milk samples showed that they were resistant to ampicillin 85. 7% and tetracycline 71. 4% and among butter samples only erythromycin was 100% resistant and ampicillin 100% semi-resistant. The mean of the obtained results in the antibiogram test were analyzed with 95% confidence and one-way analysis of variance. The results of the present study indicate the potential risk of infection due to consumption of raw milk and traditional butter to Listeria monocytogenes and raw milk had higher risk than butter.

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Cites

A Review of Listeria Monocytogenes-induced Health Hazard on a Global Scale

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APA: Copy

NAJAFI, N., SHARIFI SOLTANI, M., & Bozorgi Makerani, A.. (2023). Evaluation of listeria monocytogenes contamination of raw milk and traditional butter purchased in Amol city and detection of Antibacterial resistance of isolates. JOURNAL OF FOOD MICROBIOLOGY, 9(4 ), 100-107. SID. https://sid.ir/paper/1064975/en

Vancouver: Copy

NAJAFI N., SHARIFI SOLTANI M., Bozorgi Makerani A.. Evaluation of listeria monocytogenes contamination of raw milk and traditional butter purchased in Amol city and detection of Antibacterial resistance of isolates. JOURNAL OF FOOD MICROBIOLOGY[Internet]. 2023;9(4 ):100-107. Available from: https://sid.ir/paper/1064975/en

IEEE: Copy

N. NAJAFI, M. SHARIFI SOLTANI, and A. Bozorgi Makerani, “Evaluation of listeria monocytogenes contamination of raw milk and traditional butter purchased in Amol city and detection of Antibacterial resistance of isolates,” JOURNAL OF FOOD MICROBIOLOGY, vol. 9, no. 4 , pp. 100–107, 2023, [Online]. Available: https://sid.ir/paper/1064975/en

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