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Meat Sci. 2013 Apr;93(4):855-64. doi: 10.1016/j.meatsci.2012.11.048. Epub 2012 Dec 13.

Analysis of mathematical models of Pseudomonas spp. growth in pallet-package pork stored at different temperatures.

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  • 1Henan Key Lab of Meat Processing and Quality Safety Control, College of Food Science and Technology, Henan Agricultural University, Zhengzhou 450002, PR China. limiaoyun@henau.edu.cn

Abstract

Pseudomonas of pallet-packaged raw pork grown at 0, 5, 10, 15, 20 and 25°C has been studied in this paper. The modified Gompertz, Baranyi and Huang models were used for data fitting. Statistical criteria such as residual sum of squares, mean square error, Akaike's information criterion, and pseudo-R(2) were used to evaluate model performance. Results showed that there was an apparent decline in Pseudomonas growth at initial-storage phase at low temperatures. The modified Gompertz model outperformed the others at 5, 15, and 20°C, while Baranyi model was appropriate for 0 and 25°C. The Huang model was optimal at 10°C. No single model can give a consistently preferable goodness-of-fit for all growth data. The Gompertz model, with the smallest average values of RSS, AIC, MSE and the biggest pseudo-R(2) at all temperatures, is the most appropriate model to describe the growth of Pseudomonas of raw pork under pallet packaging.

PMID:
23313972
DOI:
10.1016/j.meatsci.2012.11.048
[PubMed - indexed for MEDLINE]
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