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首页> 外文期刊>Acta Horticulturae >Fate of Foodborne Pathogens in Minimal Processed Orange and Reduction of Their Growth Using UV-C Illumination
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Fate of Foodborne Pathogens in Minimal Processed Orange and Reduction of Their Growth Using UV-C Illumination

机译：加工橙中食源性致病菌的命运以及使用UV-C照明减少其生长

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The consumption of minimally processed products increased in recent years and with it the concern of the occurrence of outbreaks due to foodborne. Chlorine is the most commonly used disinfectant, however there are concerns about the formation of carcinogenic chlorinated compounds and the limited effectiveness or completely ineffectiveness of chlorine solutions. The aim of this work was to study the survival and growth of Escherichia coli 0157: H7, Salmonella and Listeria innocua and to evaluate the effects of two doses of UV-C illumination on reducing their populations in minimally processed orange 'Valencia late'. The results indicate that minimally processed orange was a good substrate for the growth of foodborne pathogens. The three pathogens were able to grow in oranges when stored at temperatures of 10°C or higher. When stored at 5°C the population remained constant over time, indicating the importance of maintaining a cold chain and of avoiding contamination. Concerning the use of UV-C as an eco-innovative disinfection system, the results showed that the efficacy of UV-C at 3.0 and 7.5 kJ/m and sodium hypochlorite at 100 ppm is low for this type of product. The most effective treatment, 30 minutes after application, was (in general) sodiumhypochlorite and after 6 days the best result was obtained with UV-C at 7.5 kJ/m , indicating the importance of good manufacturing practices in processing.
机译：近年来，最低限度加工产品的消费量有所增加，并引起了人们对食源性疾病暴发的担忧。氯是最常用的消毒剂，但是人们担心会致癌的氯化化合物的形成以及氯溶液的有效性有限或完全无效。这项工作的目的是研究大肠杆菌0157：H7，沙门氏菌和无毒李斯特菌的存活和生长，并评估两次剂量的UV-C照明对减少加工最少的橙色'Valencia late'种群的影响。结果表明，最少加工的橙色是食源性病原体生长的良好基质。当在10°C或更高的温度下存储时，这三种病原体能够在橙子中生长。当储存在5°C时，种群随时间保持不变，这表明保持冷链和避免污染的重要性。关于将UV-C用作生态创新型消毒系统，结果表明，此类产品在3.0和7.5 kJ / m的UV-C和100 ppm的次氯酸钠的功效较低。施用后30分钟，最有效的处理方法是（一般而言）次氯酸钠，而6天后用7.5 kJ / m的UV-C可获得最佳效果，表明在加工过程中良好生产规范的重要性。

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