在各种植物性牛奶替代品中生长的Bacillus licheniformis的核心温度
Maha Rockaya1, Bence Pecsenye1, Mariem Ellouze2
1Institute of Nutrition, Doctoral School of Food and Nutrition Science, University of Debrecen, Hungary.
International journal of food microbiology
|November 5, 2025
概括
细菌生长温度 (枢纽温度) 可能因食物基质而变化,这挑战了基质独立的假设. 这影响了食品安全建模中的增长率计算.
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.
- 细菌学 细菌学是一门学科.
背景情况:
- 核心温度 (最小,最佳,最大) 对于预测细菌生长至关重要.
- 这些温度通常被认为独立于食物矩阵.
- 这种假设简化了食品中微生物生长的预测模型.
研究的目的:
- 为了研究Bacillus licheniformis. 的核心温度的矩阵独立性.
- 为了确定食物矩阵是否影响植物性牛奶中的细菌生长参数.
- 评估矩阵效应对增长率调整因子的影响.
主要方法:
- 三级建模方法研究食品矩阵效应.
- 在植物性牛奶 (杏仁,子) 和培养基中进行Bacillus licheniformis的生长实验.
- 在不同的矩阵中比较枢纽温度和生长参数.
主要成果:
- 在植物性牛奶中,B. licheniformis的核心温度并不总是独立于矩阵.
- 一种杏仁饮料显示,与培养基相比,生长范围减少,最佳温度降低.
- 在所有测试的食品矩阵中,最大特异生长率的校正因子与温度无关.
结论:
- 食物矩阵的组成可以显著影响细菌的核心温度.
- 对于植物性食品中的B. licheniformis,对核心温度的矩阵独立性假设并不普遍有效.
- 这一发现对食品安全中的预测性微生物建模的准确性有影响.
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