金针菇中单增李斯特菌生长预测模型的建立

摘要

We established a growth model of Listeria monocytogenes in edible mushroom Flammulina velutipes at different temperature. Listeria monocytogenes was inoculated to the mushroom to obtain growth data at 10,15,20,25 and 35℃.Baranyi model was fitted with the primary growth model to get the maximum specific growth rate. By fitting temperature to the maximum specific growth rate kinetics in the primary model,we established Ratkowsky,Huang rate,Cardinal and Arrhenius⁃type model.The Arrhenius⁃type model can be used as a secondary model at different temperatures for the growth of Listeria monocytogenes in the mushroom,with a good linear relationship,and the prediction results were better than the other models.%为建立不同温度条件下金针菇中单增李斯特菌的生长模型，将单增李斯特菌接种到金针菇表面，并于不同温度下贮藏，获得其在10、l5、20、25和35℃下的生长数据，选用Baranyi模型进行拟合，建立初级生长模型，并拟合得到最大比生长速率。通过温度对初级模型中最大比生长速率的生长动力学拟合，分别建立 Ratkowsky、Huang rate、Cardinal和Arrhenius type二级生长模型，并进行数学检验。结果表明：Arrhenius type模型呈现良好的线性关系，且评价结果优于其他模型，可作为次级模型对不同温度下金针菇中单增李斯特茵的生长动态进行预测。