%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture non répertoriées par l'AERES
%A Hakil, M.
%A Denis, S.
%A Viniegra-Gonzalez, G.
%A Augur, Christopher
%T Degradation and product analysis of caffeine and related dimethylxanthines by filamentous fungi
%D 1998
%L fdi:010015593
%G ENG
%J Enzyme and Microbial Technology
%@ 0141-0229
%K FERMENTATION ; CHAMPIGNON ; CAFEINE ; BIODEGRADATION ; MILIEU DE CULTURE ; METABOLISME
%P 355-359
%R 10.1016/S0141-0229(97)00205-6
%U https://www.documentation.ird.fr/hor/fdi:010015593
%> https://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_7/b_fdi_51-52/010015593.pdf
%V 22
%W Horizon (IRD)
%X 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)
%$ 084FERMEN