Publications des scientifiques de l'IRD

Hakil M., Denis S., Viniegra-Gonzalez G., Augur Christopher. (1998). Degradation and product analysis of caffeine and related dimethylxanthines by filamentous fungi. Enzyme and Microbial Technology, 22, p. 355-359. ISSN 0141-0229.

Titre du document
Degradation and product analysis of caffeine and related dimethylxanthines by filamentous fungi
Année de publication
1998
Type de document
Article
Auteurs
Hakil M., Denis S., Viniegra-Gonzalez G., Augur Christopher
Source
Enzyme and Microbial Technology, 1998, 22, p. 355-359 ISSN 0141-0229
Twenty strains of filamentous fungi were tested for their ability to grow on a liquid medium containing caffeine (1,3,7-trimethylxanthine) as a sole nitrogen source. Seven strains which were able to grow on caffeine belong to the Aspergillus and Penicillium genuses. They all presented the same degradation pathways but varied in the efficiency by which degradation took place. Caffeine was first demethylated in position 7 ; this lead to the formation of theophylline (1,3-dimethylxanthine). This compound was next demethylated in position 1 to give 3-methylxanthine. All these strains were also able to grow on theophylline, theobromine (3,7-dimethylxanthine), and paraxanthine (1,7-dimethylxanthine) as a sole nitrogen source. All degradation intermediates detected were methylxanthines. (Résumé d'auteur)
Plan de classement
Fermentations [084FERMEN]
Descripteurs
FERMENTATION ; CHAMPIGNON ; CAFEINE ; BIODEGRADATION ; MILIEU DE CULTURE ; METABOLISME
Localisation
Fonds IRD [F B010015593]
Identifiant IRD
fdi:010015593
Contact