2000•Journal of Zhejiang University(Sciences Edition)Requires access
Study of the effects of temperature on the growth of two strains of petroleum bacteria by microcalorimetry.
Yu Li
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Abstract
In this paper, the growth thermograms of two strains of petroleum bacteria at different temperatures were determined by microcalorimetry. Disposed mathematically with the “Three Point Method” of microbe growth model at an inhibitory condition, the growth rate constants of them were obtained. The non linear equations of k t can be fitted by computer. The optimum growth temperatures which are 322.07K and 322.85K for bacteria I and bacteria II respectively, can be derived from the equations. According to the Arrhenius formula and the transition state theory, some thermokinetic functions concerned can be calculated. According to the results obtained, the growth and metabolism processes of the two strains of petroleum bacteria were analysed from the thermodynamics point of view.