多宝鱼优势腐败菌生长动态模型和货架期预测  

Microbial growth kinetics model of specific organisms and shelf life predictions for turbot

作　　者：张璐[1] 侯红漫[1] 伦成成[1] 

机构地区：[1]大连工业大学生物与食品工程学院,大连116034

出　　处：《食品科技》2010年第7期158-162,共5页Food Science and Technology

基　　金：辽宁省高等学校优秀人才支持计划(2007R04)

摘　　要：以养殖多宝鱼为研究对象,将新鲜多宝鱼分别置于0、5、10、15℃下贮藏,测定不同贮藏时期的细菌总数、优势腐败微生物数(假单胞菌数)、pH、总挥发性盐基氮(TVBN)以建立多宝鱼货架期的预测模型。应用修正的Gompertz函数方程描述优势腐败菌在不同温度下的生长动态;采用Belehradek平方根模型描述温度对最大比生长速率和延滞时间的影响。结果表明修正Gompertz函数方程能很好地描述假单胞菌的生长动态;Belehradek方程对假单胞菌动力学参数描述呈良好的线性关系。同时用贮藏在3、8℃多宝鱼鱼体假单胞菌的生长实验值,验证了多宝鱼生长动态模型符合性良好。The experiment of TVC,Pseudomnas spp.,TVBN and pH were identified at different time on turbot stored at 0 ℃,5 ℃,10 ℃,15 ℃ for developing the growth kinetics model of turbot＇shelf life.Growth dynamics of the organism at different temperature was described by a Gompertz type model;The temperature dependence of μmax and Lag was described by a Belehradek type model.The results showed growth dynamics of this organism could be well described by a Gompertz type model;The correlation regression showed Belehradek model could finely describe the influence of temperature on growth.Growth kinetics model could be well tested with Pseudomonas spp.of turbot stored at 3 ℃,8 ℃.

关 键 词：多宝鱼 假单胞菌 生长动态模型 货架期 

分 类 号：TS254.4[轻工技术与工程—水产品加工及贮藏工程]