文章摘要
汪慧春,黄和,刘亚,蒋志红,励建荣.面包虾中金黄色葡萄球菌生长预测模型的建立[J].广东农业科学,2014,41(22):104-108
查看全文    HTML 面包虾中金黄色葡萄球菌生长预测模型的建立
Construction of predictive model for the growth of Staphylococcus aureus in bread shrimp
  
DOI:
中文关键词: 面包虾  金黄色葡萄球菌  生长预测模型
英文关键词: bread shrimp  Staphylococcus aureus  predictive model
基金项目:国家“十二五”科技支撑计划项目(2012BAD29B06);广东省产学研结合项目(2011B090400154)
作者单位
汪慧春,黄和,刘亚,蒋志红,励建荣 广东海洋大学食品科技学院/广东省水产品加工与安全重点实验室/水产品深加工广东普通高等学校重点实验室/广东海洋大学实验教学部渤海大学辽宁省食品安全重点实验室 
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中文摘要:
      为了研究金黄色葡萄球菌在面包虾中的生长规律,通过测定14、18、22、27、32、37℃下金黄色葡萄球菌在面包虾中的生长数据,采用修正Gompertz、修正Logistic、Baranyi、Weibull模型拟合生长曲线。通过比较4种模型的相关系数和标准差,采用最优模型拟合一级模型,将最优一级模型拟合出的最大比生长速率(μm)与迟滞期(λ)建立与温度的二级模型。结果表明,修正Gompertz 模型最适合拟合生长曲线,模型经偏差因子(Bf)和准确因子(Af)验证,均在合适的范围内,表明所建模型能有效预测金黄色葡萄球菌在面包虾中的生长情况。
英文摘要:
      To characterize the growth of Staphylococcus aureus in bread shrimp, the growth trend of S. aureus was determined at different temperatures (14℃, 18℃, 22℃, 27℃, 32℃ and 37 ℃), the modified Gompertz, modified Logistic,Baranyi, Weibull model were used to fit growth curve. The paper compared the goodness-of -fit of four models using determination of coefficient and standard deviation, and the optimal model to fit primary model, therefore, the growth rate (μm) and lag time (λ) obtained from the optimal model were employed to establish the secondary model. Results showed,the modified Gompertz model was more suitable to describe the growth data, the model were validated using bias factor (Bf), accuracy factor (Af) , were within the reliable range, which indicated that the presented predictive model could be used to assess the grow situation of S.aureus in bread shrimp.
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