Prevalence and antimicrobial resistance of Listeria species isolated from milk and dairy products in Iran

Rahimi, Ebrahim; Ameri, Mehrdad; Momtaz, Hassan

doi:10.1016/j.foodcont.2010.03.014

Cited by 123 publications

(127 citation statements)

References 27 publications

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“…isolated was L. innocua (5.5%). This finding was in agreement with earlier report (Abrahao et al, 2008;Gebretsadik et al, 2011;Rahimi et al, 2012;Jamali et al, 2013). L. monocytogenes was isolated from only raw milk (0.5%) in this study.…”

Section: Discussionsupporting

confidence: 94%

“…In this study, L. innocua was the main Listeria spp. isolated from raw milk which is agreement with earlier findings reported by Silva et al, (2003); Rahimi et al, (2012); Jamali et al, (2013), and Seyoum et al, (2015). Infected animals, poor silage quality, insufficient hygiene, and environmental condition which could occur during milking and storage are likely the most common causes of L. monocytogenes in raw milk.…”

Section: Discussionsupporting

confidence: 91%

“…In countries other than Turkey, as similar to our study, the prevalence of Listeria spp. in cheese samples was reported as 16.7% in Brazil (Silva et al, 2003), 12.2% in Brazil (Abrahao et al, 2008), 15% in Iran (Rahimi et al, 2012), and 10% in Egypt (Elshinaway et al, 2017). L. ivanovii is connected with listeriosis.…”

Section: Discussionmentioning

confidence: 99%

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Prevalence and Characterization of Listeria Species from Raw Milk and Dairy Products from Çanakkale Province

Şanlibaba

Tezel

2018

Turkish JAF Sci.Tech.

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The objective of this study was to determine the prevalence of Listeria species, specifically Listeria monocytogenes, in raw milk, pasteurized milk, white cheese, and homemade cheese. A total of 200 food samples were collected and analyzed to examine the presence of Listeria spp. The EN ISO 11290-1 method was used for isolation of Listeria. API Listeria test kit was used for biochemically characterization. Listeria spp. were isolated in 25 of the 200 samples (12.5%). The largest number of Listeria spp. was detected in homemade cheese (24%), followed by raw milk (18%), and white cheese (8%). Listeria spp. were not isolated from the pasteurized milk. The most common species isolated were Listeria innocua (5.5%); the remaining Listeria isolates were Listeria ivanovi (3.5%), Listeria welshimeri (3%), and Listeria monocytogenes (0.5%). Listeria monocytogenes was detected in only raw milk.

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Section: Discussionsupporting

confidence: 94%

Section: Discussionsupporting

confidence: 91%

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Prevalence and Characterization of Listeria Species from Raw Milk and Dairy Products from Çanakkale Province

Şanlibaba

Tezel

2018

Turkish JAF Sci.Tech.

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“…in dairy food products and environmental samples has been reported in a study conducted in Istanbul, Turkey [12]. In another study, the overall prevalence of Listeria in dairy food was 7.2%, of which L. innocua was the most commonly recovered species (66.6%) [13].…”

Section: Discussionmentioning

confidence: 87%

Prevalence and Antimicrobial Susceptibility of Listeria spp. in Dairy Food Products and Water Samples in Dhaka, Bangladesh

Sarker¹,

Ahmed²

2015

JLS

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A total of 57 samples, of which 17 were surface water samples and 40 were dairy food samples (raw milk, pasteurized milk, icecream, sweet, milk based drink like matha and borhani) were tested for the isolation of Listeria spp. Putative Listeria isolates were identified by conventional microbiological tests and Analytical Profile Index. Overall prevalence of Listeria spp. in both food and water samples were 8.77%, of which one was (1.75%) Listeria monocytogenes, 2 (3.5%) were Listeria innocua and 2 were (3.5%) Listeria welshimeri. When compared between two types of samples, water samples contained two Listeria spp. (11.76%) of which one was pathogenic Listeria monocytogenes and the other was Listeria innocua. In case of food samples, three Listeria spp. (7.5%) were isolated of which one was Listeria innocua (icecream sample) and two were Listeria welshimeri (icecream sample and raw milk). No Listeria was found in pasteurized milk, sweet, matha and borhani. Antibiotic resistance profile of the Listeria isolates showed that 60% isolates were resistant to Ampicillin and Erythromycin, 20% isolates were Sulphamethoxazole and Ciprofloxacin resistant. No resistance was observed to Chloramphenicol for any Listeria isolates.

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“…In different studies reported around the world, isolation percentages of L. monocytogenes from soft and semi-hard cheeses were 15% in Iran (21) and 40% in Greece (6). Manfreda et al, (13) reported low L. monocytogenes contamination rates (2.1%) from soft cheeses which is in agreement with our results whereas several authors reported no L. monocytogenes in cheese samples (4,9).…”

Section: Discussionmentioning

confidence: 99%

Antimicrobial susceptibility and serotype distribution of Listeria monocytogenes isolates obtained from raw milk cheese samples sold in Nigde

YILDIRIM¹

2014

Ankara Üniversitesi Veteriner Fakültesi Dergisi

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Summary:This study was designed to evaluate public health risks in respect to listeriosis due to consumption of local raw milk cheese sold in villages and public bazaars of Nigde. In addition, this study aims to contribute to the treatment process of listeriosis by determining serotype distribution and antimicrobial susceptibility profiles of the isolates. In the study, two of cheese (1 %) samples of total 200 raw milk cheese samples (100 white cheeses and 100 tulum cheeses) were found contamined with L. monocytogenes. Serotype distribution of the isolates were determined as 1/2a (white cheese isolate) and 4a (tulum cheese isolate). Finally, antimicrobial resistance profiles of the isolates against 11 antibiotics (tetracycline, ciprofloxacin, gentamicin, ampicillin, erythromycin, trimethoprim, vancomycin, chloramphenicol, nalidixic acid, penicillin G and sulphanilamide) were determined and the MIC values were specified by a microdilution method. Both of the isolates were found to be resistant to nalidixic acid but sensitive to the others analysed. As a result, although low L. monocytogenes prevalance rates were detected in this study, it is a public health concern to isolate serotype 1/2a which is secondly incriminated serotype to cause human listeriosis. In addition, it is important in terms of public health to continue surveillance of emerging antimicrobial resistance among L. monocytogenes isolated especially from foods of animal origin though incidence of antibiotic resistance in L. monocytogenes isolates is rare.Keywords: Antimicrobial susceptibility, cheese, Listeria monocytogenes, microdilution, serotype distribution.Niğde'de satışa sunulan çiğ sütten yapılmış peynir örneklerinden elde edilen Listeria monocytogenes izolatlarının serotip dağılımının ve antimikrobiyel duyarlılık profilinin belirlenmesi Özet: Bu çalışma, Niğde ili köy ve pazarlarında tüketime sunulan çiğ sütten yapılmış peynirlerin listeriozis açısından taşıdığı halk sağlığı risklerini değerlendirmek ve peynirlerden elde edilen izolatların serotip dağılımını ve antimikrobiyel duyarlılık profillerini belirleyerek tedavi sürecine katkıda bulunmak amacıyla planlanmıştır. Çalışma sonucunda 200 çiğ sütten yapılmış peynir örneğinden (100 beyaz peynir ve 100 tulum peyniri) ikisinin (% 1) L. monocytogenes ile kontamine olduğu bulunmuştur. L. monocytogenes izolatlarının serotip dağılımı 1/2a (beyaz peynir izolatı) ve 4a (tulum peyniri izolatı) olarak belirlenmiştir. Son olarak izolatların 11 antibiyotiğe (tetrasiklin, siprofloksasin, gentamisin, ampisilin, eritromisin, trimetoprim, vankomisin, kloramfenikol, nalidiksik asit, penisilin G ve sülfonilamid) karşı direnç profilleri belirlenmiş ve MIC değerleri mikrodilüsyon metodu ile ortaya konmuştur. İzolatların her ikisinin de nalidiksik asite dirençli, diğer antibiyotiklere duyarlı olduğu tespit edilmiştir. Sonuç olarak incelenen örneklerde L. monocytogenes prevalansının çok düşük düzeylerde bulunmasına karşın insan listeriozisinden ikinci sırada sorumlu tutulan 1/2a serotipinin belirlenmiş olması h...

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Prevalence and antimicrobial resistance of Listeria species isolated from milk and dairy products in Iran

Cited by 123 publications

References 27 publications

Prevalence and Characterization of Listeria Species from Raw Milk and Dairy Products from Çanakkale Province

Prevalence and Characterization of Listeria Species from Raw Milk and Dairy Products from Çanakkale Province

Prevalence and Antimicrobial Susceptibility of Listeria spp. in Dairy Food Products and Water Samples in Dhaka, Bangladesh

Antimicrobial susceptibility and serotype distribution of Listeria monocytogenes isolates obtained from raw milk cheese samples sold in Nigde

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