文章基本信息

标题：Thermal inactivation of Enterococcus faecium
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作者：Špelina V. ; Schlemmerová L. ; Landfeld A. 等
期刊名称：Czech Journal of Food Sciences
印刷版ISSN：1212-1800
电子版ISSN：1805-9317
出版年度：2007
卷号：25
期号：5
页码：283-290
DOI：10.17221/682-CJFS
出版社：Czech Academy of Agricultural Sciences
摘要：Data for thermal inactivation of working suspension of Enterococcus faecium in model solutions were acquired and used to develop a mathematical model for thermal inactivation of the bacterium. The model is valid within the water activity range 0.97 to 0.99; pH range 6.0 to 7.6; temperature range 60°C to 65°C, and was determined for the microorganism concentration ranges of 10² per ml to 108 per ml of the model inactivation solution. An Excel procedure was developed in Visual Basic language which enables the calculation of the final concentration of the microorganism from the input data for pH, a _w, log N ₀, temperature, and holding time of the treatment. The proposed model was verified in experiments using cow and human milks. With cow milk, the correspondence between the experimental and the predicted data is highly satisfactory. With human milk, the model predicts a smaller effect of heating than is that manifested experimentally.
关键词：thermal inactivation model; Enterococcus faecium ; verification