Inhibition Study on E.coli by Temperature,pH and Natural Drug with Microcalorimetric Method

FOOD SCIENCE ›› 2007, Vol. 28 ›› Issue (6): 252-255.

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Inhibition Study on E.coli by Temperature,pH and Natural Drug with Microcalorimetric Method

LI Xiang-Yang, SHAO Wei-Hua, DIAO 恩Jie, ZHANG Hong-Lin

1.College of Food Science and Engineering, Shandong Agricultural University, Taian 271018, China;2.Weihai Tongyi School, Weihai 264200, China;3.Department of Chemistry, Qufu Normal University, Qufu 273165, China

Online:2007-06-15 Published:2011-12-31

Abstract

Abstract: In this experiment, the growth rate constants of E.coli were assayed with microcalorimetric method by different temperatures, pHs and glycyrrhiza concentrations. Then, the relation among rate constant, temperatures, pHs and drug concentrations were simulated by computer. By this means, the optimum temperature for growth is obtained as 311K(38 ℃). At the same time, the optimum pH for growth is 7.79 and the optimum concentration of glycyrrhiza 0.192 g/ml.

Key words: E.coli, microcalorimetric method, growth rate constants, glycyrrhiza

LI Xiang-Yang, SHAO Wei-Hua, DIAO 恩Jie, ZHANG Hong-Lin. Inhibition Study on E.coli by Temperature,pH and Natural Drug with Microcalorimetric Method[J]. FOOD SCIENCE, 2007, 28(6): 252-255.

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Inhibition Study on E.coli by Temperature,pH and Natural Drug with Microcalorimetric Method

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