评估棕油在低水,高脂肪食品加工环境中的沙门氏菌控制
Nofar Yehuda1, Micaela Ganz1, Omri Machluf1
1Department of Biotechnology and Food Engineering, Technion, Israel Institute of Technology, Haifa, Israel.
Food research international (Ottawa, Ont.)
|November 1, 2025
概括
热棕油有效降低了巧克力加工表面的沙门氏菌污染. 高温显著降低了细菌负载,为食品工业提供了实用的食品级消毒解决方案.
科学领域:
- 食品安全与微生物学
- 食品加工和工程 食品加工和工程
背景情况:
- 巧克力产品经常与沙门氏菌疫情有关,造成严重的公共卫生风险.
- 巧克力的成分 (高脂肪,低水活性) 保护沙门氏菌,使加工环境中的卫生复杂化.
- 巧克力输送管道的有效清洁仍然是制造业的一个关键挑战.
研究的目的:
- 评估棕油 (POo) 作为一种食品级的对沙门氏菌的消毒剂.
- 评估POo在不同温度 (20°C和92°C) 上对受污染的表面的有效性.
主要方法:
- 钢质优惠券用沙门氏菌尾酒接种或涂上受污染的巧克力.
- 优惠券经历了24小时的适应期.
- 在20°C和92°C的POo浸泡后,测量了细菌存活率.
主要成果:
- 在热POo (92°C) 中浸泡,可以在24小时内减少>5-log的沙门氏菌,并在7天内完全消除.
- 在20°C时,POo在7天后显示在巧克力涂层表面上的2.5-log减少,具有潜在的交叉污染风险.
- 在直接受到细菌污染的表面,在20°C时没有观察到显著的减少.
结论:
- 热POO处理是一种实用的,食品级的方法,用于减少加工设备表面的沙门氏菌.
- 这种方法可以帮助验证高脂肪低湿度食品制造的清洁方案.
- 需要进一步调查低温下石油循环风险.
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