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Predictive modeling of Staphylococcus aureus growth on Gwamegi (semidry Pacific saury) as a function of temperature

Journal of the Korean Society for Applied Biological Chemistry volume 56, pages 731–738 (2013)Cite this article

Abstract

Gwamegi (semidry Pacific saury [Cololabis saira]) is a Korean food made by a traditional method of repeated freezing and de-freezing during winter. The present study aimed at developing predictive modeling of S. aureus growth on Gwamegi as a function of temperature (10–35°C). Modified Gompertz, Baranyi, and logistic primary models were fitted to experimental values. Polynomial quadratic, nonlinear Arrhenius and square root models were selected as secondary models and analyzed using specific growth rate (μmax) and lag time (λ) values obtained from the primary models. Based on the optimized models derived from the Baranyi and square root equations for μmax, its r 2 and mean square error (MSE) were 0.991 and 0.00058, and bias factor (B f) and accuracy factor (A f) were 1.0087 and 1.0801, respectively. The logistic and polynomial quadratic equations for λ, its r 2 and MSE were 0.989 and 0.22834, B f and A f were 0.9742 and 1.0271, respectively. These predictive models can provide basic information for quantitative microbial risk assessment of Gwamegi and other processed semidried seafood.

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Authors and Affiliations

  1. Korea Food Research Institute, Seongnam, Gyeonggi, 463-746, Republic of Korea

    Hui-Seung Kang

  2. Department of Food Science and Technology, Chung-Ang University, 72-1 Naeri, Ansung, 456-756, Gyeonggi, Republic of Korea

    Hui-Seung Kang

  3. Department of Food Science and Technology, Chung-Ang University, 72-1 Naeri, Ansung, 456-756, Gyeonggi, Republic of Korea

    Sang-Do Ha

  4. Korea Food Research Institute, Seongnam, 463-746, Gyeonggi, Republic of Korea

    Seung-Weon Jeong, Mi Jang & Jong-Chan Kim

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  1. Hui-Seung Kang
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  2. Sang-Do Ha
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  3. Seung-Weon Jeong
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  4. Mi Jang
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  5. Jong-Chan Kim
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Correspondence to Jong-Chan Kim.

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Kang, HS., Ha, SD., Jeong, SW. et al. Predictive modeling of Staphylococcus aureus growth on Gwamegi (semidry Pacific saury) as a function of temperature. J Korean Soc Appl Biol Chem 56, 731–738 (2013). https://doi.org/10.1007/s13765-013-3122-9

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  • DOI: https://doi.org/10.1007/s13765-013-3122-9

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