Abstract：
Campylobacter jejuni causes gastroenteritis in humans and is a major concern in food safety. Commercially prepared chicken meats are frequently contaminated with C. jejuni, which is closely associated with the diffusion of intestinal contents in poultry processing plants. Sodium hypochlorite (NaClO) is commonly used during chicken processing to prevent food poisoning; however, its antimicrobial activity is not effective in the organic-rich solutions. In this study, we investigated the potential of a new photo-disinfection system, UVA-LED, for the disinfection of C. jejuni-contaminated chicken surfaces. The data indicated that UVA irradiation significantly killed C. jejuni and that its killing ability was significantly facilitated in NaClO-treated chickens. Effective inactivation of C. jejuni was achieved using a combination of UVA and NaClO, even in the organic-rich condition. The results of this study show that synergistic disinfection using a combination of UVA and NaClO has potential beneficial effects in chicken processing systems.
摘要：
空肠弯曲杆菌引起人类胃肠炎，是食品安全的主要问题。商业制备的鸡肉经常被空肠杆菌污染，这与家禽加工厂中肠道内容物的扩散密切相关。在鸡肉加工过程中通常使用次氯酸钠（NaClO）来防止食物中毒；但是，其抗微生物活性在富含有机物的溶液中无效。在这项研究中,我们调查了新的光消毒系统的潜力，UVA-LED,用于消毒受空肠弯曲菌污染的鸡肉表面。数据表明,UVA照射显著杀死空肠弯曲菌,并且在NaClO处理的鸡中显著促进其杀死能力。使用UVA和NaClO的组合实现了空肠弯曲菌的有效灭活，即使在富含有机物的条件下。这项研究的结果表明，使用UVA和NaClO的组合进行协同消毒在鸡肉加工系统中具有潜在的有益效果。
