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Citation: Liu Yi, Wang Cun-Xin, Xie Chang-Li, Qu Song-Sheng, Hao Zong-Yu. Studies on Cell Kinetics IV.Thermokinetics of Bacterial Unideal Growth Process[J]. Acta Physico-Chimica Sinica, ;1996, 12(07): 659-663. doi: 10.3866/PKU.WHXB19960716 shu

Studies on Cell Kinetics IV.Thermokinetics of Bacterial Unideal Growth Process

1.
Department of Chemistry,Wuhan University,Wuhan 430072

Received Date: 6 November 1995
Available Online: 15 July 1996

By using LKB2277 Bioactivity Monitor, we have determined the thermogenesis power curves of four kinds of bacteria: Brucella M5(55010), 83-980, 83-981 and E. coli. We have also derived the thermokinetic equation for the process of bacterial growth, which was untypical "S" , unideal growth, as:
Ln[P•(1-P/Pm)?-1]=ln[P0•(1-P0/Pm)?-1]+kt
From this equation, the rate constants of bacterial growth k wore obtained. This thermokinetic equation is very suitable for cell growth of separated culture, in which the thermogenesis curve is untypical. The model propoted by equationl(1) has been compared with the exponential and logistic models. This thermokinetic equation is very significant for the study of bacterial limited growth and their characteristics.
- Bacterial growth,
- Microcalorimetry,
- Thermokinetics,
- Thermochemistry
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