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首页> 外文期刊>Journal of the Korean Society for Applied Biological Chemistry >Predictive Modeling for the Growth of Listeria monocytogenes and Salmonella Typhimurium on Fresh-cut Cabbage at Various Temperatures
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Predictive Modeling for the Growth of Listeria monocytogenes and Salmonella Typhimurium on Fresh-cut Cabbage at Various Temperatures

机译：不同温度下鲜切甘蓝上单核细胞增生李斯特菌和鼠伤寒沙门氏菌生长的预测模型

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摘要

The growth of Listeria monocytogenes and Salmonella Typhimurium on fresh-cut cabbage at between 15 and 35 degrees C before and after treatment with water washing, chlorine dipping, and chlorine dipping followed by water washing were investigated. It is apparent that these pathogens could grow faster at higher temperature. Chlorine treatments reduced L. monocytogenes and S. Typhimurium on cabbage by 1.04-1.15 log CFU/g and 1.35-1.51 log CFU/g, respectively. Gompertz model and polynomial equation were used to describe the behaviors of L. monocytogenes and S. Typhimurium on cabbage before and after treatment with water washing, chlorine dipping, and chlorine dipping followed by water washing as a function of temperature. The lag times of L. monocytogenes and S. Typhimurium were the longest when treated with chlorine dipping followed by water washing at 15 degrees C. The growth rates of L. monocytogenes and S. Typhimurium were the lowest when treated with water washing at 15 degrees C, indicating that the growth of pathogen was more affected by storage temperature than chlorine treatment. Validation was also performed to evaluate the reliability of developed predictive models. The B-f values of the growth rate and lag time for L. monocytogenes and S. Typhimurium ranged from 0.90 to 1.25, indicating that they were mostly in the acceptable level, whereas A(f) values ranged from 1.07 to 1.80, showing that they were over-predicted
机译：研究了在水洗，浸氯，浸氯和水洗后水在处理之前和之后，在15至35摄氏度之间，鲜切卷心菜上单核细胞增生李斯特菌和鼠伤寒沙门氏菌的生长情况。显然，这些病原体在较高温度下可能生长更快。氯处理使白菜上的单核细胞增生李斯特菌和鼠伤寒沙门氏菌分别降低了1.04-1.15 log CFU / g和1.35-1.51 log CFU / g。用Gompertz模型和多项式方程式描述了水洗，浸氯，浸氯，然后水洗处理后单核细胞增生李斯特菌和鼠伤寒沙门氏菌在白菜上的行为随温度的变化。单核细胞增生李斯特氏菌和鼠伤寒沙门氏菌的滞后时间在氯浸泡后15℃水洗时最长。 C，表明病原体的生长受储存温度的影响比氯处理的影响更大。还进行了验证，以评估开发的预测模型的可靠性。单核细胞增生李斯特菌和鼠伤寒沙门氏菌的生长率和滞后时间的Bf值在0.90至1.25之间，表明它们大部分处于可接受的水平，而A（f）值在1.07至1.80之间，表明它们是过度预测

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