Modeling the pressure inactivation dynamics of Escherichia coli
Braz. j. med. biol. res
; 38(8): 1253-1257, Aug. 2005. ilus
Article
in English
| LILACS
| ID: lil-405528
Responsible library:
BR1.1
RESUMO
Escherichia coli, as a model microorganism, was treated in phosphate-buffered saline under high hydrostatic pressure between 100 and 300 MPa, and the inactivation dynamics was investigated from the viewpoint of predictive microbiology. Inactivation data were curve fitted by typical predictive models logistic, Gompertz and Weibull functions. Weibull function described the inactivation curve the best. Two parameters of Weibull function were calculated for each holding pressure and their dependence on holding pressure was obtained by interpolation. With the interpolated parameters, inactivation curves were simulated and compared with the experimental data sets.
Full text:
Available
Collection:
International databases
Health context:
Neglected Diseases
Health problem:
Neglected Diseases
/
Zoonoses
Database:
LILACS
Main subject:
Escherichia coli
/
Hydrostatic Pressure
Type of study:
Prognostic study
/
Risk factors
Language:
English
Journal:
Braz. j. med. biol. res
Journal subject:
Biology
/
Medicine
Year:
2005
Document type:
Article
/
Congress and conference
Affiliation country:
Japan
Institution/Affiliation country:
National Food Research Institute/JP