不同贮藏条件下罗氏沼虾细菌总数生长数学模型的研究

本实验主要研究了贮藏在不同温度、初始pH和初始NaCl%浓度条件下罗氏沼虾细菌总数的生长情况。实验结果表明:其中建立的Gompertz方程拟合的相关系数R2>0.95,偏差度Bf和准确度Af在0.70～0.90及1.06～1.15之间。依据F值和显著性判断,环境因子对细菌总数生长特征参数的影响大小顺序为:温度>初始NaCl%浓度>初始pH值。在延滞期的响应面方程模型中,温度与初始NaCl%浓度的一次、二次效应和它们之间的交互效应对延滞期都有显著性的影响。

Research on Model of Total Bacterial Counts Growth in Macrobrachium rosenbergii de Man on Different Storing Conditions

Total bacterial counts were examined which grew on Macrobrachium rosenbergii de Man stored at the different temperatures,initial pH values and initial sodium chloride concentrations.Experiment results showed that the Gompertz equation fitting correlation coefficient is R2>0.95,and bias factor and accuracy factor is in the range of 0.70～0.90 and 1.06～ 1.15.Based on F value and significance judgment,the order of factors affecting the total bacterial counts growth characteristics is:temperature > initial sodium chloride concentration > initial pH value.In the lag phase of response surface equation foundation,the lag phase is significant impacted by the single,quadratic or Cross-product of temperature and initial sodium chloridec oncentration.