Some Observations on Bacterial Thermal Death Time Curves

Autor: Licciardello, J. J., Nickerson, J. T. R.
Zdroj: Applied Microbiology; November 1963, Vol. 11 Issue: 6 p476-480, 5p
Abstrakt: Thermal death rate data were obtained for spores of Clostridium sporogenesP.A. 3679 and Bacillus subtilisvar. niger, and for cells of Salmonella senftenberg775W. The survival curves for P.A. 3679 were approximately linear, but for B. subtilisvar. nigeror S. senftenberg775W they were sigmoidal. Decimal reduction times were derived from the regression slopes of the apparent linear portion of the survival curves, and from these a phantom thermal death time (TDT) curve was constructed. In general, the phantom TDT curves were linear for B. subtilisvar. nigerand S. senftenberg775W and nonlinear for P.A. 3679.
Databáze: Supplemental Index