应用栅栏技术确定带鱼软罐头杀菌工艺的研究

Sterilizing technology for the hairtail soft can using hurdle technology

为了优化带鱼软罐头热力杀菌的工艺,本研究采用二次回归通用旋转组合试验设计方案,探讨水分活度、pH值、杀菌温度和时间4个主要栅栏因子对产品细菌总数的影响并建立了动态数学模型。验证与应用实验表明,该数学模型可以很好地反映细菌总数与4个因子之间的关系,实现在实际生产中进行动态控制和预测产品质量的目的。

In order to optimize the sterilizing technological conditions of the hairtail segments soft can, with the mathematical method of quadratic-rotation-interchangeable-composite experimental design, this paper explored the effects of the values of activity of water Aw, pH value , sterilizing temperature and sterilizing time on the total bacterial count of product. A dynamic mathematics model with the effects of four hurdle factors was given. The results of proof test and its application show that this dynamic mathematics model can manage to describe the relationship between the four hurdle factors and the total bacterial count of product, and then the possibility to dynamically control and estimate the shelf life of the hairtail segments soft can is available.