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酱卤鸡肉货架期预测的研究[J]. 华体会体育, 2012, (22): 351-354. DOI: 10.13386/j.issn1002-0306.2012.22.084
引用本文: 酱卤鸡肉货架期预测的研究[J]. 华体会体育, 2012, (22): 351-354. DOI: 10.13386/j.issn1002-0306.2012.22.084
Research of the prediction of sauce chicken shelf life[J]. Science and Technology of Food Industry, 2012, (22): 351-354. DOI: 10.13386/j.issn1002-0306.2012.22.084
Citation: Research of the prediction of sauce chicken shelf life[J]. Science and Technology of Food Industry, 2012, (22): 351-354. DOI: 10.13386/j.issn1002-0306.2012.22.084

酱卤鸡肉货架期预测的研究

Research of the prediction of sauce chicken shelf life

  • 摘要: 利用Arrhenius方程,以国标中用于评价肉质鲜度的唯一理化指标TVB-N为指示指标,建立预测酱卤鸡肉货架期的动力学模型。根据TVB-N值和贮藏时间的关系,得出活化能Ea和指前因子k0分别为16.254kJ/mol、31.125,推导出TVB-N变化速率常数k与贮藏温度(T)之间的Arrhenius方程。根据方程A=A0exp(kt),A终点TVB-N值为20mg/100g,能够预测一定贮藏温度下酱卤鸡肉的货架期。分别取4、10、16℃作为验证温度,结果表明:误差分别为3.71%、3.25%、5.45%,预测值与真实值之间能较好地符合。另外检测了贮藏期间样品的水分含量、pH、色泽和微生物的变化情况,水分含量、pH和色泽三者均呈现总的下降趋势,微生物数量随贮藏时间的延长而增加。 

     

    Abstract: Used Arrhenius equation and establish a kinetic model to predict the sauce chicken shelf life through the only physical and chemical indexes of TVB-N evaluating meat fresh degree in Chinese standard.According to the relationship of TVB-N and storage time, the Ea was 16.254kJ/mol and k0 was 31.125, the Arrhenius equation between TVB-N value and storage time (T) was deduced.Through the equation A=A0exp (kt) , the endpoint of TVB-N was 20mg/100g, and the shelf life of sauce chicken in a certain storage temperature could be predicted.The validation temperature were 4, 10 and 16℃, the result showed that the relative errors were 3.71%, 3.25% and 5.45%, respectively, which had small differences between predicted value and true value.In addition, we measured the change rule of the water content, pH, color and microorganism of the products, the first three criterion presented general downturn, the microorganism quantity increased as the time extension during storage.

     

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