Growth/no growth interface of Brochothrix thermosphacta as a function of pH and water activity

Marcelo O.Masana; Jozsef Baranyi

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Growth/no growth interface of Brochothrix thermosphacta as a function of pH and water activity

机译：Growth/no growth interface of Brochothrix thermosphacta as a function of pH and water activity

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A growth/no growth boundary model based on interpolated probabilities is presented in this paper. The boundary is defined as the loci where the probability of growth for a sample is equal to its chance of no growth, P(growth)=P(no growth). Brochothrix thermosphacta was used as a test micro-organism to collect data near the boundary of growth/no growth, in a pH/NaCl grid. Results showed a dramatic change in the probability of growth at the boundary with minor changes of pH or NaCl, and that the location of the boundary was affected by the inoculum level. A quadratic polynomial was used to describe the boundary of the growth region (interpolated P=0.5). The importance of growth/no growth boundary models as limits for the application of kinetic models is discussed.

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《Food Microbiology》 |2000年第5期|485-493|共9页
作者
Marcelo O.Masana; Jozsef Baranyi;
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作者单位

Instituto de Tecnologia de Alimentos, INTA.C.C.77, 1708 Moron, Buenos Aires, Argentina;

Institute of Food Research, Norwich Research Park, Norwich, NR4 7UA, UK;

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收录信息美国《科学引文索引》(SCI);美国《化学文摘》(CA);
原文格式 PDF
正文语种英语
中图分类食品工业;
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Growth/no growth interface of Brochothrix thermosphacta as a function of pH and water activity

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