作者
Vijay K Juneja, Martin Valenzuela Melendres, Lihan Huang, Vinod Gumudavelli, Jeyamkondan Subbiah, Harshavardhan Thippareddi
发表日期
2007/6/1
期刊
Food microbiology
卷号
24
期号
4
页码范围
328-335
出版商
Academic Press
简介
Growth data of Salmonella in chicken were collected at several isothermal conditions (10, 15, 20, 25, 28, 32, 35, 37, 42, and 45°C) and were then fitted into primary models, namely the logistic model, modified Gompertz model and Baranyi model. Measures of goodness-of-fit such as mean square error, pseudo-R2, −2 log likelihood, Akaike's information, and Sawa's Bayesian information criteria were used for comparison for these primary models. Based on these criteria, modified Gompertz model described growth data the best, followed by the Baranyi model, and then the logistic model. The maximum growth rates obtained from each primary model were then modeled as a function of temperature using the modified Ratkowsky model. Pseudo-R2 values for this secondary model describing growth rate obtained from Baranyi, modified Gompertz, and logistic models were 0.999, 0.980, and 0.990, respectively. Mean …
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