在高CO2下牛肉牛排的微生物和质量属性包装:排放与气体冲洗
Seyed Mohammad Hassan Mortazavi1, Mandeep Kaur1, Asgar Farahnaky1
1Discipline of Biosciences and Food Technology, School of Science, RMIT University, Melbourne 3000, Australia.
Foods (Basel, Switzerland)
|September 28, 2024
概括
高二氧化碳 (CO2) 包装有效减少牛肉牛排中的有氧细菌. 然而,二氧化碳排放器导致包装膨胀和滴水损失,而初始高氧冲洗保持了肉质和颜色.
科学领域:
- 食品科学 食品科学 食品科学
- 微生物学 微生物学
- 包装技术 包装技术
背景情况:
- 牛肉牛排的冷藏对于延长保质期至关重要.
- 控制微生物生长和在储存期间保持肉类质量是重大挑战.
- 使用高二氧化碳 (CO2) 的改造大气包装 (MAP) 是一个有希望的方法.
研究的目的:
- 研究不同高二氧化碳包装方法对21天冷藏期间牛肉牛排质量和微生物成分的影响.
- 为了比较气体冲洗与二氧化碳排放在实现高二氧化碳水平方面的有效性.
- 评估对微生物数量,pH值,颜色和物理性质 (如滴水损失) 的影响.
主要方法:
- 牛肉牛排用两种高二氧化碳方法进行包装:气体冲洗和二氧化碳排放.
- 样品在寒冷条件下保存了21天.
- 分析了微生物有氧计数,pH值,表面颜色 (a*和b*值),包头空间气体组成,包装胀和滴水损失.
主要成果:
- 气体冲洗和二氧化碳排放者都有效控制了有氧微生物的数量.
- 与气体冲洗相比,CO2发射器导致头空间CO2快速增加,pH和颜色 (a*,b*值) 发生变化.
- 过度的气体积聚与二氧化碳排放器导致包装膨胀和增加滴水损失.
- 使用高氧的初始冲洗最长时间保持了肉的质量和红色.
结论:
- 高水平的二氧化碳,无论使用何种方法,都会抑制牛肉包装中的有氧细菌.
- 二氧化碳排放器需要谨慎管理,使用适当的顶部膜来控制气体比率并防止负面的物理变化.
- 为了获得最佳质量和保持颜色,初始高氧冲洗,然后控制CO2水平可能是有益的.
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