Abstract Outbreaks of foodborne illnesses from fresh produce in recent years have prompted industrial community to consider new practices aimed at reducing the risks of pathogenic microbial contamination on the produce. The presence of organic matter in wash water not only decreases the efficacy of sanitizers to inactivate microorganisms, but also has the potential to transfer microbial contamination to fresh produce. This study aims to comprehensively evaluate the transfer of pathogens from inoculated organic matter to uninoculated fresh produce leaves during washing, as well as determination of the adequate active free chlorine concentration needed to prevent the potential risk of cross-contamination during produce washing process. In addition, the study also characterized the role of particles in increasing the mechanical shear at the leaf surface using numerical simulation. The results showed that cross-contamination of fresh produce occurred significantly in a short time (

中文翻译：

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受污染的有机颗粒在清洗和卫生过程中新鲜农产品交叉污染中的作用

摘要 近年来，新鲜农产品食源性疾病的爆发促使工业界考虑采取新的做法，以降低农产品上病原微生物污染的风险。洗涤水中有机物的存在不仅会降低消毒剂灭活微生物的功效，而且有可能将微生物污染转移到新鲜农产品上。本研究旨在全面评估清洗过程中病原体从接种的有机物转移到未接种的新鲜农产品叶子，以及确定在农产品清洗过程中防止交叉污染潜在风险所需的足够活性游离氯浓度。此外，该研究还使用数值模拟表征了颗粒在增加叶片表面机械剪切方面的作用。结果表明，新鲜农产品的交叉污染在短时间内发生显着（