Effect of temperature on growth characteristics of Bacillus cereus TZ415

The effect of temperature on the maximal specific growth rate was studied in Bacillus cereus between 5 and 40°C cultivated in courgette broth and rich medium (J broth). B. cereus grown from 5 to 38°C in rich medium. No growth was observed in courgette broth below 10°C. The Arrhenius plot was fitted...

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Bibliographic Details
Published in:International journal of food microbiology 2000-04, Vol.55 (1), p.73-77
Main Authors: Choma, Caroline, Clavel, Thierry, Dominguez, Hélène, Razafindramboa, Njara, Soumille, Hugues, Nguyen-the, Christophe, Schmitt, Philippe
Format: Article
Language:English
Subjects:
Bacillus cereus
Bacillus cereus - growth & development
Biological and medical sciences
Food industries
Fruit and vegetable industries
Fundamental and applied biological sciences. Psychology
Growth rate
Life Sciences
Microbiology and Parasitology
Modelling
Temperature
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Summary:The effect of temperature on the maximal specific growth rate was studied in Bacillus cereus between 5 and 40°C cultivated in courgette broth and rich medium (J broth). B. cereus grown from 5 to 38°C in rich medium. No growth was observed in courgette broth below 10°C. The Arrhenius plot was fitted from experimental data of B. cereus grown in rich medium and at regulated pH, oxygen and temperature. Two domains which are separated by a critical temperature around 13°C can be distinguished with regard to temperature dependence of maximal specific growth rate. Over the cold domain from 5 to 13°C, the temperature characteristic was 2.6 fold higher than over the sub-optimal domain from 13 to 38°C suggesting that the growth temperature regulates several metabolic pathways.
ISSN:0168-1605
1879-3460
DOI:10.1016/S0168-1605(00)00197-5