冷藏真空包装牛肉的保质期估计,考虑到不确定性
Magdevis Y Rodriguez-Caturla1, Alberto Garre2, Carmen Josefina Contreras Castillo3
1Department of Food Science and Nutrition, Faculty of Food Engineering, University of Campinas, Campinas, SP, Brazil.
International journal of food microbiology
|August 7, 2023
概括
用真空包装牛肉的保质期估计是使用乳酸细菌 (LAB) 和Enterobacteriaceae的微生物生长模型. 模型根据温度和pH值预测了保质期,突出了非主导细菌的潜在破坏作用.
科学领域:
- 食品微生物学 食品微生物学
- 预测建模的预测建模.
- 肉类科学 肉类科学
背景情况:
- 真空包装可以延长牛肉的保质期,但微生物破坏仍然是一个问题.
- 乳酸细菌 (LAB) 和 Enterobacteriaceae 是牛肉中关键的腐烂微生物.
- 准确的保质期预测对于肉类行业至关重要.
研究的目的:
- 开发和验证牛肉保质期的预测模型.
- 评估温度和pH对微生物生长动学的影响.
- 确定影响保质期确定的主要微生物群.
主要方法:
- 使用两步和一步方法对LAB和Enterobacteriaceae的生长建模.
- 在二次模型中将温度和初始pH值作为影响因素纳入.
- 通过真空包装牛肉的交叉验证来验证模型 (细腿,细腿,外).
主要成果:
- 开发了真空包装牛肉中LAB和Enterobacteriaceae生长的预测模型.
- 牛肉肌肉类型对微生物生长动力学没有显著影响.
- 根据关键的微生物极限估计了保质期,其中Enterobacteriaceae有时是限制因素.
结论:
- 预测模型准确地估计了真空包装牛肉在冷藏下的保质期.
- 主导性 (LAB) 和非主导性 (Enterobacteriaceae) 微生物都可以决定产品的腐败.
- 这些发现支持在肉类加工中实施有针对性的控制策略.
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