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KMID : 1007520140230010307
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Food Science and Biotechnology
2014 Volume.23 No. 1 p.307 ~ p.312
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Effect of Temperature on the Growth Kinetics and Predictive Growth Model of Aeromonas hydrophila on Squid (Sepioteuthis sepioidea)
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Park Shin-Young
Ha Sang-Do
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Abstract
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This study developed a predictive growth modelof Aeromonas hydrophila on fresh squids as a storagetemperature (5℃-40℃). The primary models of specificgrowth rates (SGR) and lag time (LT) fit well (R2≥0.973).Secondary polynomial models were obtained by non-linearregression and calculated as: SGR=0.05152+0.00337*T+0.00039*T2; LT=50.51030?2.56290*T+0.03446*T2. Theappropriateness of the secondary model was verified bymean square error (MSE; 0.006 for SGR, 0.256 for LT),bias factor (Bf ; 0.999 for SGR, 1.007 for LT), accuracyfactor (Af ; 1.025 for SGR, 1.026 for LT), and coefficient ofdetermination (r2; 0.991 for SGR, 0.993 for LT). Thesecondary model is therefore in good agreement with thevalidation and may be used as a practical prediction for A.hydrophila growth on squid. Ultimately, the developedmodels are of importance in reducing A. hydrophila levelsin the seafood production, processing, and distribution.
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KEYWORD
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Aeromonas hydrophila, predictive model, growth, temperature, squid
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