Occurrence and Antimicrobial Susceptibility of Listeria monocytogenes Isolated from Brined White Cheese in Jordan

Occurrence and Antimicrobial Susceptibility of Listeria monocytogenes Isolated from Brined White Cheese in Jordan

:  Listeria monocytogenes is a serious foodborne pathogen that has been isolated from different dairy food products. Several foodborne outbreaks of listeriosis have been associated with consumption of cheese. The aims of this study were to determine the occurrence of L. monocytogenes and Listeria sp...

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Bibliographic Details
Published in:Journal of food science Vol. 77; no. 9; pp. M528 - M532
Main Authors: Osaili, Tareq M., Al-Nabulsi, Anas A., Taha, Mohammad H., Al-Holy, Murad A., Alaboudi, Akram R., Al-Rousan, Walid M., Shaker, Reyad R.
Format: Journal Article
Language:English
Published: Malden, USA Blackwell Publishing Inc 01-09-2012
Wiley
Wiley Subscription Services, Inc
Subjects:
Anti-Bacterial Agents - pharmacology
antimicrobial susceptibility
Biological and medical sciences
Cheese
Cheese - microbiology
Colony Count, Microbial
DNA, Bacterial - isolation & purification
Drug Resistance, Bacterial
Food contamination & poisoning
Food Contamination - analysis
Food industries
Food Microbiology
Food science
Fundamental and applied biological sciences. Psychology
Gram-positive bacteria
Hydrogen-Ion Concentration
Jordan
Listeria monocytogenes
Listeria monocytogenes - drug effects
Listeria monocytogenes - isolation & purification
Listeria spp
Microbial Sensitivity Tests
Milk and cheese industries. Ice creams
Polymerase chain reaction
Salts
white cheese
Jordan
Asia
Jordan (country)
Sensitivity resistance
Surveillance
Dairy product
Listeria monocytogenes
antimicrobial susceptibility
Bacteria
Cheese
white cheese
Listeria spp
Antimicrobial agent
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Summary::  Listeria monocytogenes is a serious foodborne pathogen that has been isolated from different dairy food products. Several foodborne outbreaks of listeriosis have been associated with consumption of cheese. The aims of this study were to determine the occurrence of L. monocytogenes and Listeria spp. in brined white cheese (BWC) sold in Jordan, and to determine the susceptibility of isolated L. monocytogenes to antimicrobials. Three hundred and fifty samples of 5 different types of BWC (akkawi, boiled, halloumi, pasteurized, and shellal) were collected from a local market in Jordan. The ISO (11290‐1) procedure was followed for isolation and identification of Listeria spp. from cheese samples and a polymerase chain reaction (PCR) technique was used for confirmation of L. monocytogenes isolates. The VITEK2 automated system was used for testing antimicrobial susceptibility of L. monocytogenes isolates. The overall prevalence of Listeria spp. in cheese sample was 27.1%. L. monocytogenes was isolated from 39 (11.1%) samples. Other isolated species were L. grayi (6.9%), L. innocua (2%), L. ivanovii (4%), L. seeligeri (2%), and L. welshimeri (0.3%). The pH values and salt concentrations of L. monocytogenes positive cheese samples ranged from 5.10 to 6.32 and 5.64 to 13.16, respectively. L. monocytogenes isolates were sensitive or intermediate susceptible to imipenem, gentamicin, linezolid, teicoplanin, vancomycin, fusidic acid, trimethoprim/sulfamethoxazole, benzylpenicillin, ciprofloxacin, erythromycin, tetracycline, and rifampicin, but resistant to fosfomycin, oxacillin, and clindamycin.
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content type line 23
ISSN:0022-1147
1750-3841
DOI:10.1111/j.1750-3841.2012.02877.x