应用多气体探测器用于监测储存期间牛肉中的气体成分
Aleksandar Veličković1,2, Lorenzo Cocola3, Massimo Fedel3
1Faculty of Technology, University of Niš, Bulevar Oslobodjenja 124, 16000 Leskovac, Serbia.
Foods (Basel, Switzerland)
|November 27, 2024
概括
一个新的多气体探测器可以监测储存的碎牛肉上方的氧气和二氧化碳等气体的变化. 这项技术显示了气体水平和微生物生长之间的联系,有助于检测肉类包装中的污染.
科学领域:
- 食品科学 食品科学 食品科学
- 微生物学 微生物学
- 分析化学 分析化学
背景情况:
- 肉类腐烂是一个重大问题,导致经济损失和食品安全问题.
- 监测微生物活动对于在储存期间评估肉类质量至关重要.
- 检测微生物污染的传统方法可能是耗时和劳动密集的.
研究的目的:
- 评估一种新型的多气体探测器装置,用于监测冷藏储存期间在碎牛肉上方的大气气变化.
- 调查微生物种群 (LAB和 Enterobacteriaceae) 与气体排放之间的相关性.
- 评估气体分析在包装肉类中间接检测微生物污染的潜力.
主要方法:
- 碎牛肉样本被储存在冷藏条件下.
- 使用多气体探测器监测头部空间中的O2,CO2,NH3和H2S度.
- 微生物分析的重点是量化乳酸细菌 (LAB) 和 Enterobacteriaceae.
- 进行统计分析以确定显著变化 (p < 0.05).
主要成果:
- 七天后观察到O2的显著下降,并在第四天检测到CO2释放.
- 直到第11天,气体度发生了显著的变化,与微生物生长的增加相吻合.
- 在整个研究过程中,NH3和H2S仍然无法检测到.
- 在LAB和Enterobacteriaceae数量增加和头部气体水平升高之间发现了正相关性.
结论:
- 多气体探测器有效监测碎牛肉包装中的大气变化.
- 气体分析,特别是CO2和O2水平,可以作为微生物活动和破坏的间接指标.
- 这项技术为评估包装肉制品中的微生物污染提供了一种有希望的非侵入性方法.
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