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Prediction of Competitive Microbial Growth in Mixed Culture at Dynamic Temperature Patterns

机译：动态温度模式下混合培养中竞争性微生物生长的预测

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摘要

A novel competition model developed with the new logistic model and the Lotka-Volterra model successfully predicted the growth of bacteria in mixed culture using the mesophiles Staphylococcus aureus, Escherichia coil, and Salmonella at a constant temperature in our previous studies. In this study, we further studied the prediction of the growth of those bacteria in mixed culture at dynamic temperatures with various initial populations with the competition model. First, we studied the growth kinetics of the species in a monoculture at various constant temperatures ranging from 16 degrees C to 32 degrees C. With the analyzed data in the monoculture, we then examined the prediction of bacterial growth in mixed culture with two and three species. The growth of the bacteria in the mixed culture at dynamic temperatures was successfully predicted with the model. The residuals between the observed and predicted populations at the data points were <0.5 log at most points, being 83.3% and 84.2% for the two-species mixture and the three-species mixture, respectively. The present study showed that the model could be applied to the competitive growth in mixed culture at dynamic temperature patterns
机译：在我们以前的研究中，使用恒定温度下的中温金黄色葡萄球菌，大肠杆菌和盘状沙门氏菌，成功地预测了在新的逻辑模型和Lotka-Volterra模型之间建立的新型竞争模型，从而预测了细菌在混合培养中的生长。在这项研究中，我们使用竞争模型进一步研究了在动态温度下具有各种初始种群的混合培养中这些细菌的生长预测。首先，我们研究了从16摄氏度到32摄氏度的各种恒定温度下单一培养物中物种的生长动力学。利用单一培养物中的分析数据，我们然后研究了两种和三种混合培养中细菌生长的预测种类。利用该模型成功地预测了动态温度下混合培养物中细菌的生长。数据点处的观测种群和预测种群之间的残差在大多数点处均＜0.5 log，对于两种物种混合物和三种物种混合物，分别为83.3％和84.2％。本研究表明，该模型可用于动态温度模式下混合培养的竞争增长。

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