在化场和食用蛋上用气相基激素过程无活化沙门氏菌
Brenda Zai1, Vanessa Comacho-Martinez1, Mahdiyeh Hasani1
1Department of Food Science, University of Guelph, Ontario, Canada.
Journal of food protection
|November 5, 2023
概括
一种新的气相基过程有效地去污染了蛋,减少了沙门氏菌Enteritidis超过5log CFU/蛋. 这种方法保持了蛋的质量和化率,为控制沙门氏菌提供了比传统洗蛋更优质的替代方案.
科学领域:
- 食品安全与微生物学
- 环境科学与工程环境科学与工程
- 农业科学 农业科学
背景情况:
- 蛋是沙门氏菌的重要传播媒介,对化和消费者构成风险.
- 目前的净化方法,如洗蛋,在有效性和潜在的交叉污染方面存在局限性.
研究的目的:
- 为了评估气相基过程对化场和食用蛋的消毒的有效性.
- 为了确定最佳的治疗参数来减少沙门氏菌,而不会影响蛋的质量或安全.
主要方法:
- 开发了一种使用UV-C灯,过氧化 (H2O2) 雾和臭氧气体的连续基基反应堆.
- 优化处理条件 (H2O2度,流量,UV-C剂量,臭氧水平,处理时间) 以达到>5日志CFU/蛋减少沙门氏菌.
- 在35天内对蛋质量指标 (豪氏值,蛋黄指数,pH) 和皮膜完整性的评估影响.
- 评估对受精卵化率的影响,并观察出缺陷.
主要成果:
- 在2%v/v的H2O2,30mL/min,19mJ/cm2的UV-C剂量,20ppm的臭氧和10s的处理中,达到了>5logCFU/蛋的沙门氏菌减少.
- 治疗后没有对蛋质量指标或皮质完整性的负面影响.
- 经过处理的受精卵的化率与对照细胞相比 (75%对比71-79%),没有观察到任何缺陷.
- 基基处理显著优于传统的蛋清洗 (2.76 log CFU/蛋减少).
结论:
- 气相基处理是一种高度有效和安全的方法,用于对化场和食用蛋进行沙门氏菌感染的消毒.
- 该过程与现有的行业蛋清洗实践相兼容,并且在减少病原体方面显著改善.
- 这项技术代表了一种有价值的预防控制策略,以提高蛋行业的食品安全.
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