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Shelf Life Prediction of Sichuan-Type Sausage through Kinetic Models

FAN Wen-jiao,YI Yu-wen,JIA Hong-feng,DENG Chun,ZHANG Yong-kui   

  1. 1. Department of Food Science, Sichuan Tourism University, Chengdu 610100, China;
    2. School of Chemical Engineering, Sichuan University, Chengdu 610065, China
  • Online:2013-10-25 Published:2013-09-28

Abstract:

The changes and dynamic characteristics of total volatile basic nitrogen (TVB-N) and 2-thiobarbituric acid (TBA)
in Sichuan-type sausage at different fermentation temperatures during storage were studied. Chemical kinetic models of
T-VBN value and TBA value with respect to fermentation temperature were developed. According to regression coefficient
of the chemical kinetic model, TBA value was confirmed as a measure of shelf life and a prediction model for the shelf-life
of Sichuan-type sausage was established. The results indicated that the shelf-life of Sichuan-type sausage could be predicted
at different fermentation storage temperatures and the reliability assessment between the predicted and observed shelf-life
showed relative error within ± 7%.

Key words: kinetic model, prediction, Sichuan-type sausage, shelf-life