在介电屏障放电后猪肉细菌数量和成分的变化 血处理和储存在改性大气层包装中
Yi Zhou1, Huixin Zuo1, Zhaoqi Dai2
1Key Laboratory of Food Processing Technology and Quality Control in Shandong Province, College of Food Science and Engineering, Shandong Agricultural University, Tai'an 271018, China.
Foods (Basel, Switzerland)
|January 8, 2025
概括
介电屏障放电 (DBD) 等离子处理会对猪肉造成次致命损伤.
科学领域:
- 食品微生物学 食品微生物学
- 食品安全 食品安全
- 血技术是一项技术.
背景情况:
- 猪肉的冷藏储存对于延长保质期至关重要.
- 微生物破坏会影响猪肉的质量和安全性.
- 非热等离子体治疗为微生物脱污染提供了潜力.
研究的目的:
- 为了比较猪肉后驱电屏障放电 (DBD) 血处理中的微生物继承.
- 评估DBD对天然猪肉微生物群的杀菌和杀菌效应.
- 在冷藏储存期间分析微生物动力学和相互作用.
主要方法:
- 介电屏障放电 (DBD) 猪肉的等离子处理.
- 使用传统的选择性介质 (SM) 和薄甲层 (TAL) 方法进行微生物计数.
- 应用巴拉尼和罗伯茨和修改的洛特卡-沃尔特拉模型用于动力和相互作用分析.
主要成果:
- 通过SM,DBD治疗对关键细菌表现出显著的杀菌作用,但没有TAL,这表明了次致命的损伤.
- 对于大多数测试的微生物,DBD延长了滞后阶段,并降低了最大生长率 (μmax).
- 乳酸细菌 (LAB) 对其他微生物产生更强的抑制作用.
结论:
- DBD血治疗对猪肉微生物群产生显著的亚致命杀菌作用.
- 在储存期间,DBD对微生物数量和社区组成都有影响.
- 了解亚致命效应对于优化基于血的食品保存策略至关重要.
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