Fig. 6

Degradation of theophylline and caffeine by theobromine-degrading fungal isolates. The isolates were cultured with agitation for 3 days. After the period, substrates were added to the whole cultures and incubation continued with agitation for 90 min. Plot shows percent reduction in baseline substrate concentration (0.1 mM theophylline; 0.08 mM caffeine) for each fungal isolate. Each bar represents mean ± SEM for n = 4. AnTD Aspergillus niger, TmTD1 Talaromyces marneffei 1, TvTD Talaromyces verruculosus, TmTD2 Talaromyces marneffei 2