Effects of Citrate on inhibitory role of Iron in Bacillus Cereus growth and metabolism

Objective: Although trace elements such as iron are essential nutrients for organisms, at high concentration they can be toxic for their growth and modify their metabolic patterns as well. In order to find out the influence of Iron and Iron-Citrate on growth gram-positive bacteria, the present inves...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: N Kalantari, AA Moshtaghi, I Nahvi
Formato: article
Lenguaje:EN
FA
Publicado: Babol University of Medical Sciences 1999
Materias:
R
Acceso en línea:https://doaj.org/article/011ca827e9a04bfbafebc79434094d53
Etiquetas: Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
Descripción
Sumario:Objective: Although trace elements such as iron are essential nutrients for organisms, at high concentration they can be toxic for their growth and modify their metabolic patterns as well. In order to find out the influence of Iron and Iron-Citrate on growth gram-positive bacteria, the present investigation has been undertaken. Methods: In the series of experiments, B.cereus has been incubated in the NB-medium with and without Iron for 5 hours at 37 and with and without Iron-Citrate for 3.5 hours at 37°C. Findings: The results showed that addition of 5.6 and 11.2 mg/L of Fe+2 or Fe+3 in the medium inhibits growth of B.cereus. Citrate counteracts the growth inhibitory effects of high levels of Fe+2, Fe+3. Conclusion: These findings suggested the important role of Citric acid in the suppression of the inhibitory effects of Fe+2 and Fe+3 on B.cereus growth.