摘要
以托盘包装冷鲜猪肉馅为研究对象,研究假单胞菌的生长变化与模型构建。结果表明,Gompertz方程拟合获得的假单胞菌生长预测一级模型,相关系数R^2值均大于0.99,偏差因子和准确因子分别为0.870和1.149;采用平方根模型研究温度对假单胞菌生长动力学参数的影响,得到温度与最大比生长速率和延滞期方程分别为:U^(1/2)=0.066×[T-(-11.606)]和(1/t_(LPD))^(1/2)=0.059×[T-(-15.42)],其中T∈[0,20],R^2分别为0.981和0.811,F统计量检验表明方程具有显著性。构建的生长模型能够较好地预测0～20℃下假单胞菌在冷鲜猪肉馅基质上的生长。
The growth changes and model establishment of Pseudomonas from cooled minced meat in pallet package have been studied in this paper. The results show that the prediction model fitting by modified Gompertz equation is good, and the related coefficient R2 are greater than 0.99, the general average bias factor and accuracy factor are 0.870 and 1.149. Belehradek model has been used to describe the effect of temperature on its growth kinetic parameters, and the equations of temperature and its U and Lag time are /U=0.066×[T-（-11.606）]and /1/tLPO=0.059×[T-（-15.42）],（T∈[0,20]）respectively, the related coefficient R2 are 0.981 and 0.811, the F statistical analysis shows that the equations are obvious. The conclusion is that the established model can well predict the growth of Pseudomonas from 0 to 20 ℃ on chilled streaky pork.
出处
《农产品加工（下）》
2013年第3期1-3,26,共4页
Farm Products Processing
基金
国家863课题(2012AA101605)
关键词
冷鲜猪肉馅
假单胞菌
预测模型
chilled minced meat
Pseudomonas
prediction model
