Redoxcitrinin, a biogenetic precursor of citrinin from marine isolate of fungus Penicillium sp
2007
A chemical analysis of the fermentation of the marine-derived fungus Penicillium sp. led to the isolation of a biogenetic precursor of citrinin, redoxcitrinin (1), together with polyketide mycotoxins, phenol A (2), citrinin H2 (3), 4-hydroxymellein (4), citrinin (5), and phenol A acid (6). The structures of compounds 1-6 were determined on the basis of physicochemical data analyses. Among them, compounds 1-3 exhibited a potent radical scavenging activity against 1,1-diphenyl-2-picrylhydrazyl (DPPH) with IC 50 values of 27.7, 23.4, and 27.2 μM, respectively.
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