Titre :
|
The influence of temperature and gas mixtures on the growth of the intrinsic micro-organisms on cut endive: Predictive versus actual growth
|
Auteurs :
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K. Vankerschaver ;
F. Willocx ;
C. Smout ;
AL Et
|
Type de document :
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article/chapitre/communication
|
Année de publication :
|
1996
|
Format :
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p. 427-440
|
Langues:
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= Anglais
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Catégories :
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Biologie
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Mots-clés:
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ENDIVE
;
LEGUME
;
TEMPERATURE
;
QUATRIEME GAMME
;
MICROORGANISME
;
CULTURE BACTERIENNE
;
PREVISION
;
GAZ
|
Résumé :
|
Effects of temperature and carbon dioxide concentration on the growth of mesophilic aerobic count (MAC), psychrotrophic, Gram-negative bacteria, pseudomonads and lactic acid bacteria were investigated in a case-study of minimally processed endive. When plotting population density against time, a distinct lag time was not observed. In a temperature range from 4.3-16.1 °C, both combined Arrhenius-Ratkowsky-restricted growth models were used to model growth of these groups of micro-organisms. Temperature dependence of the growth rate constant for pseudomonads and psychrotrophic, Gramnegative bacteria were similar, whereas the growth rate constant of the MAC was much more temperature dependent. A combined exponential (CO2)-Arrhenius (temperature)-restricted growth model was selected to model the number of pseudomonads and an exponential (CO2)-Ratkowsky (temperature)-restricted growth model was selected to model the growth of MAC on cut endive.
|
Source :
|
Food microbiology, vol.13
|