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Comparison of freshness prediction method for salmon fillet during different storage temperatures
Author(s) -
Jia Zhixin,
Shi Ce,
Zhang Jiaran,
Ji Zengtao
Publication year - 2021
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.11142
Subject(s) - fillet (mechanics) , total viable count , fish <actinopterygii> , residual , mathematics , fish fillet , thiobarbituric acid , statistics , food science , biological system , chemistry , biology , fishery , algorithm , engineering , mechanical engineering , biochemistry , oxidative stress , bacteria , genetics , lipid peroxidation
BACKGROUND Many new forecasting models have been applied to fish freshness prediction like support vector regression (SVR) and radial basis function neural network (RBFNN). In this study, RBFNN, SVR, and Arrhenius models were established and compared for predicting and evaluating the quality of salmon fillets during storage at different temperatures, based on thiobarbituric acid (TBA), total volatile basic nitrogen (TVB‐N), total viable counts (TVCs), K value, and sensory assessment (SA). RESULTS The TBA, TVB‐N, TVC, and K values increased during storage whereas SA decreased. Residuals of the three models are random and irregular, indicating that these models were suitable for predicting the freshness of salmon fillets. The RBFNN predicted quality of salmon fillets stored at different temperatures with relative errors all within ±5% (except for the TVC value at day 6). Relative errors of the SVR model for predicting TVB‐N and K value were within 10%, while the relative errors of the Arrhenius model fluctuated greatly (ranging from ±0.46 to ±38.29%) and most of it exceeded 10%. RBFNN model had the best predictive performance by comparing the residual and relative errors of the three models. CONCLUSION RBFNN is a promising method for predicting the freshness of salmon fillets stored at −2 to 10 °C in the cold chain. © 2021 Society of Chemical Industry