Effect of combined function of temperature and water activity on the growth of Vibrio harveyi
Braz. j. microbiol
;
43(4): 1365-1375, Oct.-Dec. 2012. ilus, graf, tab
Article
Dans Anglais
| LILACS
| ID: lil-665821
ABSTRACT
Vibrio harveyi is considered as a causative agent of the systemic disease, vibriosis, which occurs in many biological fields. The effects of temperatures (12.9-27.1 ºC) and water activity (NaCl% 0.6%-3.4%) on V. harveyi were investigated. The behavior and growth characteristics of V. harveyi was studied and modeled. Growth curves were fitted by using Gompertz and Baranyi models, and the Baranyi model showed a better fittness. Then, the maximum growth rates (µmax) and lag phase durations (LPD, λ) obtained from both Gompertz and Baranyi model were modeled as a combination function of temperature and water activity using the response surface and Arrhenius-Davey models for secondary model. The value of r², MSE, bias and accuracy factor suggest Baranyi model has better fitness than Gompertz model. Furthermore, validation of the developed models with independent data from ComBase also shown better interrelationship between observed and predicted growth parameter when using Baranyi model.
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Température
/
Vibrio
/
Infections à Vibrio
/
Croissance Bactérienne
/
Écosystème
Type d'étude:
Études d'évaluation
/
Étude pronostique
langue:
Anglais
Texte intégral:
Braz. j. microbiol
Thème du journal:
Microbiologie
Année:
2012
Type:
Article
/
descriptif de projet
Pays d'affiliation:
Chine
Institution/Pays d'affiliation:
China Agricultural University/CN
/
Sichuan Agricultural University/CN
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