Systematic-review and meta-analysis on effect of decontamination interventions on prevalence and concentration of Campylobacter spp. during primary processing of broiler chickens.

Autor: Gichure JN; Department of Food Science, Nutrition and Technology, South Eastern Kenya University, P.O. Box 170-90200, Kitui, Kenya. Electronic address: jngichure@gmail.com., Kamau Njage PM; Division for Epidemiology and Microbial Genomics, National Food Institute, Technical University of Denmark, Søltofts Plads, Building 221, Denmark., Wambui JM; Institute for Food Safety and Hygiene, University of Zurich, Winterthurerstrasse 272, 8057, Zurich, Switzerland., Dykes GA; School of Molecular and Life Sciences, Faculty of Science and Engineering, Curtin University, GPO Box U1987, Perth, Western Australia, 6845, Australia., Buys EM; Department of Consumer and Food Sciences, University of Pretoria, Private Bag X20, Hatfield, 0028, South Africa., Coorey R; School of Molecular and Life Sciences, Faculty of Science and Engineering, Curtin University, GPO Box U1987, Perth, Western Australia, 6845, Australia.
Jazyk: angličtina
Zdroj: Food microbiology [Food Microbiol] 2022 Apr; Vol. 102, pp. 103923. Date of Electronic Publication: 2021 Oct 14.
DOI: 10.1016/j.fm.2021.103923
Abstrakt: Scientific advances in pathogen decontamination offer great potential to reduce Campylobacter spp. during primary processing. The aim of this study was to collate data from eligible studies using systematic review, meta-analysis followed by meta-regression. Random effect meta-analysis revealed heterogenous (τ 2  = 0.6, I 2  = 98 %) pooled reduction in Campylobacter concentration of 0.6 log 10  CFU/carcass and a decrease in relative risk of Campylobacter spp. prevalence in broiler carcasses by 57.2 %. Decontamination interventions during Inside-Outside-Carcass-Wash were most effective on concentration (0.8 log 10  CFU/carcass) while those during evisceration were most effective on prevalence (78.0 % decrease in relative risk). Physical decontamination was more effective on Campylobacter prevalence (68.7 % decrease in relative risk) compared chemical treatment (30.3 %). Application through immersion was superior on Campylobacter concentration (0.9 log 10  CFU/carcass odds reduction) to spraying (0.5 log 10  CFU/carcass odds reduction). Publication bias and small study effect were observed in trials on Campylobacter prevalence but not for concentration. The meta-regression revealed four and seven potential modifier variables for concentration and prevalence respectively. This meta-analysis provides an overview of the expected magnitude in Campylobacter spp. concentration and prevalence with application of decontamination interventions on broiler carcasses along the slaughter process and forms a basis of quantitative microbial risk assessment and derivation of intervention measures. Even though modest microbial concentration reduction is reported there was a large decrease in contamination prevalence during processing interventions.
(Copyright © 2021 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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