INCIDENCE OF LISTERIA MONOCYTOGENES IN RETAIL CHICKEN MEAT AND ESTABLISHING RELATIONSHIP WITH SOME BACTERIA BY LOGISTIC REGRESSION

Abstract

The objective of this study was to determine the contamination of retail poultry meat in Erzurum (Turkey) by Listeria monocytogenes and to evaluate its relationship with indicator bacteria using logistic regression. The incidence of L. monocytogenes was 32.76%, found in 38 of 116 samples. The application of logistic regression showed Enterobacteriaceae, Pseudomonas spp. and Brochothrix thermosphacta populations have positive, and yeast and mold population have negative relationship with L. monocytogenes presence. The results of this study demonstrate that there is a serious risk in raw poultry meat for consumer health in Erzurum, because of the high incidence of L. monocytogenes in the samples of the present study. Hygienic conditions described in HACCP program should still be enforced in order to minimize L. monocytogenes in poultry meat during the processing. PRACTICAL APPLICATIONS Listeria monocytogenes and other Listeria species have been isolated from many different types of raw and processed food, but the main sources and routes of contamination are still not fully understood. There is a need for more knowledge, and data are needed for risk assessment and for improved preventive measures. In order to prevent and control contamination of the environment and food products with this pathogen, it is important to detect the most important sources of contamination and to understand the mechanisms of growth, including relationships with other bacteria. The main concern with raw poultry meat is the incidence of L. monocytogenes in raw chicken because of cross‐contamination with other foods in the home and the possibility of the microorganism surviving in processed chicken. Application of logistic regression was used to identify the main hazards associated with the presence of microorganisms, as well as for applications in predictive food microbiology, modeling binomially distributed data that involve the use of probability models, where the response variable is a “presence/absence” observation of whether or not growth will occur.

Prevalence of Pathogens in Poultry Meat: A Meta-Analysis of European Published Surveys

“…After assessing all the information from the recovered publications, seventy-eight primary studies [6,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,…”

Bioactivity of Essential Oils for Mitigation of Listeria monocytogenes Isolated from Fresh Retail Chicken Meat

“…Our results were in agreement with Elmali et al [ 52 ], who found a 37.5% prevalence of L. monocytogenes in 120 retail poultry meat samples. Additionally, Ceylan et al [ 53 ] reported similar results and found that 32.76% prevalence of L. monocytogenes was found in 38 of 116 analyzed samples. Escudero-Gilete et al [ 54 ] reported 26% prevalence in the retailed chicken meat samples.…”

Listeria Occurrence and Potential Control Strategies in Alternative and Conventional Poultry Processing and Retail

“…This study suggests that poultry may be contaminated due to poor processing techniques, along with other factors such as temperature and water activity (Elmali et al, 2015). Raw poultry is a favorable environment for L. monocytogenes, and once it contaminates the meat in the processing environment, there is a high chance it will survive through to the retail environment and ultimately to the consumer (Ceylan et al, 2008). This is why it is critical that the proper processing techniques as stated earlier are followed explicitly.…”