Quantification of Campylobacter jejuni cross-contamination via hands, cutlery, and cutting board during preparation of a chicken fruit salad

Autor: R. de Jonge, F.M. van Leusden, L. Verhoeff-Bakkenes, A.E.I. de Jong, Rijkelt R. Beumer
Jazyk: angličtina
Rok vydání: 2008
Předmět:
Zdroj: Journal of Food Protection 71 (2008) 5
Journal of Food Protection, 71(5), 1018-1022
ISSN: 0362-028X
DOI: 10.4315/0362-028x-71.5.1018
Popis: Using artificially contaminated chicken, the quantitative overall effect of Campylobacter jejuni cross-contamination, either via cutlery, cutting board, or hands, on the microbiological quality of a chicken salad was tested to identify the most critical transfer route. The end contamination level of salads prepared according to different scenarios, with or without cross-contamination, was compared. It was shown that the mean transfer rate calculated for all salads prepared allowing cross-contamination was 0.12% of the initial number of C. jejuni on the chicken fillet (8.8 +/- 0.2 log CFU). The difference in calculated transfer rates for the tested cross-contamination routes was not significantly different (P > 0.05). The prevention of cross-contamination by replacing cutlery and cutting board after handling raw chicken and the prevention of hand contact resulted in considerably reduced end contamination levels (< 2.4 log CFU) or noncontaminated end products. The results of this study emphasize the importance of preventing cross-contamination during food handling in reducing the risks of foodborne infections, and they provide useful data for quantitative microbiological risk assessment.
Databáze: OpenAIRE