超高压杀灭低酸性食品中耐压菌的动力学模型

被引:17
作者
卢蓉蓉 [1 ]
钱平 [2 ]
何红艳 [1 ]
余坚勇 [2 ]
戚伟民 [1 ]
张晓娟 [2 ]
陈潇 [1 ]
机构
[1] 江南大学食品学院
[2] 中国人民解放军总后勤部军需装备研究所
关键词
高压效应; 模型; 动力学; 芽孢;
D O I
暂无
中图分类号
TS207.1 [];
学科分类号
摘要
为了描述超高压杀菌过程和预测杀菌效果,该文建立了超高压对低酸性食品中4种耐压菌及其芽孢的杀菌动力学模型。首先在300~500MPa的超高压条件下获得了枯草芽孢杆菌、地衣芽孢杆菌、嗜热脂肪芽孢杆菌和致黑梭状芽孢杆菌的芽孢致死曲线。选取线性模型和Weibull模型来拟合超高压杀菌的动力学过程,以精确因子、均方差和决定系数R2作为模型拟合度优劣的评判指标。数据分析结果表明,Weibull模型在300~500MPa具有很好的拟合性(R2>0.9),线性模型的拟合效果不佳(R2<0.83)。所得Weibull方程可有效预测特定压力-时间组合下的灭菌效果,可用于指导超高压灭菌的实际生产。
引用
收藏
页码:350 / 356
页数:7
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