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Investigation of the toxic effect of cadmium on Candida humicola and Bacillus subtilis using a microcalorimetric method by Hai-Yan Chen; Jun Yao; Yong Zhou; Hui-Lun Chen; Fei Wang; Nan Gai; Ren-Sheng Zhuang; Brunello Ceccanti; Thomas Maskow; Gyula Zaray is a Environmental Science article available to read on EtoBox.
What is Investigation of the toxic effect of cadmium on Candida humicola and Bacillus subtilis using a microcalorimetric method about?
In this study, the technique of microcalorimetry based on heat-output by aerobic bacterial respiration was explored to evaluate the toxic effect of cadmium on Candida humicola, Bacillus subtilis, singularly or in a mixture of both. Power-time curves of the growth metabolism of C. humicola and B. subtilis and the effect of Cd 2+ were studied using the TAM III (the third generation thermal activity monitor) multi-channel microcalorimetric system, isothermal mode, at 28 • C. The differences in shape of the power-time curves and the thermodynamic and kinetic characteristics of microorganisms growth were compared. The effect of cadmium added into microorganism would significantly reduce the life cycle and change the thermal effect of microbial metabolic process with different concentrations of Cd 2+ . The experimental results revealed that at the same concentration, the sequence of inhibitory ratio (I) and maximum thermal power (P max ) of the Cd 2+ was: mixed microorganisms > C. humicola > B. subtilis. The sequence of total thermal effect (Q total ) and growth rate constant (k) is mixed microorganisms > B. subtilis > C. humicola. These results are important to further studies of the ph
Who reads Investigation of the toxic effect of cadmium on Candida humicola and Bacillus subtilis using a microcalorimetric method?
It is typically read by researchers, students, and practitioners in Environmental Science.
- Author
- Hai-Yan Chen; Jun Yao; Yong Zhou; Hui-Lun Chen; Fei Wang; Nan Gai; Ren-Sheng Zhuang; Brunello Ceccanti; Thomas Maskow; Gyula Zaray
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0304-3894)
- Published
- 2008
- Language
- EN
- Field
- Environmental Science (Physical Sciences)