Melanin of Laetiporus sulphureus (Bull.: Fr.) Murr sterile form

Melanin complex was isolated from mycelium of the basidiomycete Laetiporus sulphureus (Bull.: Fr.) Murr (with a yield of 2.49% of the dry weight). UV and IR spectroscopies, gel chromatography, and alkaline cleavage assay demonstrated that the isolated melanin was heterogeneous and belonged to the di...

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Bibliographic Details
Published in:Applied biochemistry and microbiology 2011-05, Vol.47 (3), p.298-303
Main Authors: Olennikov, D. N, Agafonova, S. V, Stolbikova, A. V, Rokhin, A. V
Format: Article
Language:English
Subjects:
antioxidant activity
Biochemistry
Biomedical and Life Sciences
chromatography
free radical scavengers
gels
Hydrogen peroxide
in vitro studies
ions
iron
Laetiporus sulphureus
Life Sciences
Medical Microbiology
melanin
Microbiology
Molecular weight
nitrogen
Pigments
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Summary:Melanin complex was isolated from mycelium of the basidiomycete Laetiporus sulphureus (Bull.: Fr.) Murr (with a yield of 2.49% of the dry weight). UV and IR spectroscopies, gel chromatography, and alkaline cleavage assay demonstrated that the isolated melanin was heterogeneous and belonged to the dihydronaphthalene type. ¹³C-NMR data suggested that aromatic fragments were dominant in the melanin structure. In vitro study of the antioxidant action demonstrated that the L. sulphureus melanin displayed a radical-scavenging activity and the ability to inactivate hydrogen peroxide and nitrogen(II) oxide molecules and to chelate iron(II) ions.
ISSN:0003-6838
1608-3024
DOI:10.1134/s0003683811030094