文章基本信息

标题：Ready-to-eat vegetables productionwith low-level water chlorination. An evaluationof water quality and of its impact on end products
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作者：Francesca D’Acunzo ; Angela Del Cimmuto ; Lucia Marinelli 等
期刊名称：Annali dell'Istituto Superiore di Sanita
印刷版ISSN：0021-2571
出版年度：2012
卷号：48
期号：02
页码：151-160
DOI：10.4415/ANN_12_02_08
出版社：Editrice Kurtis Srl
摘要：Introduction. We evaluated the microbiological impact of low-level chlorination (1 ppm free chlorine) on the production of ready-to-eat (RTE) vegetables by monitoring the microbiological quality of irrigation and processing water in two production plants over a 4-season period, as well as the microbiological quality of unprocessed vegetables and RTE product. Water samples were also characterized in terms of some chemical and physico-chemical parameters of relevance in chlorination management. Materials and methods. Both producers use water with maximum 1 ppm free chlorine for vegetables rinsing, while the two processes differ by the number of washing cycles. Results and conclusions. Salmonella spp and Campylobacter spp were detected once in two different irrigation water samples out of nine from one producer. No pathogens were found in the vegetable samples. As expected, the procedure encompassing more washing cycles performed slightly better in terms of total mesophilic count (TMC) when comparing unprocessed and RTE vegetables of the same batch. However, data suggest that low-level chlorination may be insufficient in preventing microbial build-up in the washing equipment and/or batch-to batch cross-contamination.
关键词：ready-to-eat vegetables; water chlorination; microbiological decontamination.