副溶血性弧菌温度-pH双因素预警模型的建立  

Development of predictive model for combined effect of temperature and pH on the growth of Vibrio parahaemolyticus

作　　者：李涛[1] 宁喜斌[1] 安秀华[1] 符姜燕[1] 

机构地区：[1]上海海洋大学,上海201306

出　　处：《食品工业科技》2010年第3期91-94,共4页Science and Technology of Food Industry

基　　金：国家自然科学基金项目资助(30771675);上海市教育委员会重点学科建设项目资助(J50704)

摘　　要：以副溶血性弧菌VpBJ1.1997为研究对象,采用均匀设计实验方法,建立并验证了温度范围为7～43℃,pH范围为5.5～10.0的生长动力学模型。结果表明,所选一级模型的拟合效果优劣依次为Logistic方程>Gompertz方程>Linear方程,以Logistic方程为一级模型计算生长参数;二级模型采用平方根模型进行拟合,得到模型相关系数r为0.9739,最低生长温度为11.7769℃,最低生长pH为7.38,经F检验和偏差因子、准确因子验证,模型可接受。Based on the standard strain- Vibrio parahaemolyticus BJ1.1997, its growth status which affected by temperature（7-43%） and pH （5.5-10.0） was studied with uniform design.The results showed that Logistic equation was optimal in primary models, while Gompertz equation was more adaptable than Linear, so growth parameters were calculated from Logistic equation.The secondary model was developed by square root models. Its rvalue was 0.9739,the lowest growth temperature was 11.7769% and the lowest growth pH was 7.38.Through F test and evaluation by bias factor and accuracy factor, the model can exactly describe the relationship between the growth rate and combined effect of temperature and pH.

关 键 词：副溶血性弧菌 双因素预测模型 均匀设计 

分 类 号：TS201.3[轻工技术与工程—食品科学]