复习二级模型特征,以描述微生物无活化和生长模型的肩和滞后参数
Alberto Garre1, Vasilis Valdramidis2, Silvia Guillén1
1Departamento de Ingeniería de Alimentos y del Equipamiento Agrícola, Instituto de Biotecnología Vegetal, Universidad Politécnica de Cartagena (ETSIA), Paseo Alfonso XIII, 48, 30203 Cartagena, Spain.
International journal of food microbiology
|January 25, 2025
概括
这项研究通过将异热条件与温度对滞后阶段持续时间和肩膀长度的影响联系起来,完善了微生物生长和无活化模型. 新的二次模型提高了参数估计和预测微生物学的稳定性.
科学领域:
- 微生物学 微生物学
- 数学建模的数学建模
- 食品科学 食品科学 食品科学
背景情况:
- 巴拉尼和吉拉尔德模型对于微生物生长和无活化是可靠的.
- 对于滞后阶段持续时间 (λ) 和肩膀长度 (Sl) 的二次模型存在不确定性.
研究的目的:
- 重新审视Baranyi和Geeraerd模型,重点关注细菌适应动态.
- 开发独特的二次模型,用于温度对λ和S的影响.
- 解决预测微生物学二级模型功能形式的不确定性.
主要方法:
- 与温度依赖的二次模型连接异热滞后和肩动态.
- 建议对Sl进行逻辑线性和对λ进行反向二次方程 (使用Ratkowsky μ).
- 证明了二次模型之间的合,将参数从四个减少到三个.
主要成果:
- 确定了温度对λ和Sl的影响的独特二次模型.
- 观察到二次模型之间的合 (Geeraerd 的 k/Sl; Baranyi 的 λ/μ).
- 使用文献数据进行参数估计的可靠性提高.
结论:
- 解决了关于二次模型在预测微生物学中的功能形式的不确定性.
- 提供了一种使用异热数据评估动态假设的方法.
- 建立了一个蓝图,用于将该方法应用于温度以外的其他二次模型.
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