鲜切莲藕菌落总数变化预测模型研究  

Predictive Model Research of the Fresh-cut Lotus Root's Total Colony Counts Change

作　　者：方兰兰[1] 黄泽元[1] 王宏勋[1] 

机构地区：[1]武汉工业学院,食品科学与工程学院,武汉430023

出　　处：《食品工业》2012年第4期47-49,共3页The Food Industry

基　　金：武汉工业学院2010年研究生创新项目(2010cx010)

摘　　要：研究了鲜切莲藕在2℃,6℃,10℃和20℃下菌落总数的变化规律,运用统计学软件SAS9.1拟合鲜切莲藕在不同温度下的生长动力模型,表明Gompertz模型能很好拟合不同温度下菌落总数的动态变化;建立的平方根模型表明不同温度与最大比生长速率和延滞期之间存在较好的线性关系,模型判定系数R2的值均在0.99以上,说明建立的一级和二级模型能够有效的预测2℃～20℃下菌落总数的变化规律,为鲜切莲藕货架期的预测奠定基础。The change regular pattem of total colony counts of minimally processed lotus roots was studied during the storage at 2℃, 6℃, 10℃（2 and 20℃. Growth models of lotus at different temperatures were developed by SAS9.1 software. The Gompertz type model indicated that the dynamic change of number of bacteria during different temperatures. The model of relationship between temperature and maximum specific growth rate, lag phase were built respectively through Square root model. The research results indicate that the primary model and secondary model is valuable for rapid prediction of the change regular of total colony counts at 2℃-20℃（2 with R2 more than 0.99, which provides a shelf life for the fresh-cut lotus roots.

关 键 词：鲜切莲藕 菌落总数 预测模型 

分 类 号：TS255.5[轻工技术与工程—农产品加工及贮藏工程]