Simulation of cross contamination and decontamination of Campylobacter jejuni during handling of contaminated raw vegetables in a domestic kitchen
Campylobacter jejuni was found to occur at high prevalence in the raw salad vegetables examined. Previous reports describe cross-contamination involving meat; here we investigated the occurrence of cross-contamination and decontamination events in the domestic kitchen via C. jejuni-contaminated vege...
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International Association for Food Protection
2008
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Online Access: | http://psasir.upm.edu.my/id/eprint/16722/1/Simulation%20of%20cross%20contamination%20and%20decontamination%20of%20Campylobacter%20jejuni%20during%20handling%20of%20contaminated%20raw%20vegetables%20in%20a%20domestic%20kitchen.pdf http://psasir.upm.edu.my/id/eprint/16722/ http://www.ncbi.nlm.nih.gov/pubmed/19244897 |
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my.upm.eprints.167222015-11-24T04:08:39Z http://psasir.upm.edu.my/id/eprint/16722/ Simulation of cross contamination and decontamination of Campylobacter jejuni during handling of contaminated raw vegetables in a domestic kitchen Chai, Lay-Ching Lee, Hai-Yen Mohd Ghazali, Farinazleen Abu Bakar, Fatimah Malakar, Pradeep Kumar Nishibuchi, Mitsuaki Nakaguchi, Yoshitsugu Radu, Son Campylobacter jejuni was found to occur at high prevalence in the raw salad vegetables examined. Previous reports describe cross-contamination involving meat; here we investigated the occurrence of cross-contamination and decontamination events in the domestic kitchen via C. jejuni-contaminated vegetables during salad preparation. This is the first report concerning quantitative cross-contamination and decontamination involving naturally contaminated produce. The study was designed to simulate the real preparation of salad in a household kitchen, starting with washing the vegetables in tap water, then cutting the vegetables on a cutting board, followed by slicing cucumber and blanching (heating in hot water) the vegetables in 85°C water. Vegetables naturally contaminated with C. jejuni were used throughout the simulation to attain realistic quantitative data. The mean of the percent transfer rates for C. jejuni from vegetable to wash water was 30.1 to 38.2%; from wash water to cucumber, it was 26.3 to 47.2%; from vegetables to cutting board, it was 1.6 to 10.3%; and from cutting board to cucumber, it was 22.6 to 73.3%. The data suggest the wash water and plastic cutting board as potential risk factors in C. jejuni transmission to consumers. Washing of the vegetables with tap water caused a 0.4-log reduction of C. jejuni attached to the vegetables (most probable number/gram), while rapid blanching reduced the number of C. jejuni organisms to an undetectable level. International Association for Food Protection 2008 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/16722/1/Simulation%20of%20cross%20contamination%20and%20decontamination%20of%20Campylobacter%20jejuni%20during%20handling%20of%20contaminated%20raw%20vegetables%20in%20a%20domestic%20kitchen.pdf Chai, Lay-Ching and Lee, Hai-Yen and Mohd Ghazali, Farinazleen and Abu Bakar, Fatimah and Malakar, Pradeep Kumar and Nishibuchi, Mitsuaki and Nakaguchi, Yoshitsugu and Radu, Son (2008) Simulation of cross contamination and decontamination of Campylobacter jejuni during handling of contaminated raw vegetables in a domestic kitchen. Journal of Food Protection, 71 (12). pp. 2448-2452. ISSN 0362-028X http://www.ncbi.nlm.nih.gov/pubmed/19244897 English |
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Campylobacter jejuni was found to occur at high prevalence in the raw salad vegetables examined. Previous reports describe cross-contamination involving meat; here we investigated the occurrence of cross-contamination and decontamination events in the domestic kitchen via C. jejuni-contaminated vegetables during salad preparation. This is the first report concerning quantitative cross-contamination and decontamination involving naturally contaminated produce. The study was designed to simulate the real preparation of salad in a household kitchen, starting with washing the vegetables in tap water, then cutting the vegetables on a cutting board, followed by slicing cucumber and blanching (heating in hot water) the vegetables in 85°C water. Vegetables naturally contaminated with C. jejuni were used throughout the simulation to attain realistic quantitative data. The mean of the percent transfer rates for C. jejuni from vegetable to wash water was 30.1 to 38.2%; from wash water to cucumber, it was 26.3 to 47.2%; from vegetables to cutting board, it was 1.6 to 10.3%; and from cutting board to cucumber, it was 22.6 to 73.3%. The data suggest the wash water and plastic cutting board as potential risk factors in C. jejuni transmission to consumers. Washing of the vegetables with tap water caused a 0.4-log reduction of C. jejuni attached to the vegetables (most probable number/gram), while rapid blanching reduced the number of C. jejuni organisms to an undetectable level. |
format |
Article |
author |
Chai, Lay-Ching Lee, Hai-Yen Mohd Ghazali, Farinazleen Abu Bakar, Fatimah Malakar, Pradeep Kumar Nishibuchi, Mitsuaki Nakaguchi, Yoshitsugu Radu, Son |
spellingShingle |
Chai, Lay-Ching Lee, Hai-Yen Mohd Ghazali, Farinazleen Abu Bakar, Fatimah Malakar, Pradeep Kumar Nishibuchi, Mitsuaki Nakaguchi, Yoshitsugu Radu, Son Simulation of cross contamination and decontamination of Campylobacter jejuni during handling of contaminated raw vegetables in a domestic kitchen |
author_facet |
Chai, Lay-Ching Lee, Hai-Yen Mohd Ghazali, Farinazleen Abu Bakar, Fatimah Malakar, Pradeep Kumar Nishibuchi, Mitsuaki Nakaguchi, Yoshitsugu Radu, Son |
author_sort |
Chai, Lay-Ching |
title |
Simulation of cross contamination and decontamination of Campylobacter jejuni during handling of contaminated raw vegetables in a domestic kitchen |
title_short |
Simulation of cross contamination and decontamination of Campylobacter jejuni during handling of contaminated raw vegetables in a domestic kitchen |
title_full |
Simulation of cross contamination and decontamination of Campylobacter jejuni during handling of contaminated raw vegetables in a domestic kitchen |
title_fullStr |
Simulation of cross contamination and decontamination of Campylobacter jejuni during handling of contaminated raw vegetables in a domestic kitchen |
title_full_unstemmed |
Simulation of cross contamination and decontamination of Campylobacter jejuni during handling of contaminated raw vegetables in a domestic kitchen |
title_sort |
simulation of cross contamination and decontamination of campylobacter jejuni during handling of contaminated raw vegetables in a domestic kitchen |
publisher |
International Association for Food Protection |
publishDate |
2008 |
url |
http://psasir.upm.edu.my/id/eprint/16722/1/Simulation%20of%20cross%20contamination%20and%20decontamination%20of%20Campylobacter%20jejuni%20during%20handling%20of%20contaminated%20raw%20vegetables%20in%20a%20domestic%20kitchen.pdf http://psasir.upm.edu.my/id/eprint/16722/ http://www.ncbi.nlm.nih.gov/pubmed/19244897 |
_version_ |
1643826299392753664 |