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Melanin allomelanins

Melanins are complex polymeric structures, which are usually mixtures of macromolecules. Melanins are classified as eumelanins, phaeomelanins and allomelanins. ... [Pg.114]

Allomelanins — These are structurally different compounds containing little or no nitrogen. They are considered polymers of phenolic compounds like catechol. Fnngi prodnce melanin pigments, predominantly dihydroxyphenylalanine (DOPA)-melanin and dihydroxynaphthalene (DHN)-melanin. ... [Pg.114]

Kamei, H. et al.. Suppression of growth of cultured malignant cells by allomelanins, plant-produced melanins. Cancer Biother. Radiopharm., 12, 47, 1997. [Pg.123]

Melanins are classified according to their chemical structure into the insoluble black eumelanins (poly-5,6-indole quinones) and the alkali-soluble red phaeomelanins (polydihydrobenzothiazines). Nicolaus (5) includes another group, the homoaromatic phenolic allomelanins (per-... [Pg.254]

Gel permeation chromatography has been used in studies of water-soluble melanins. Several fractions were separated from allomelanin from Aspergillus niger on Sephadex G gels (Ref. 7, p. 131). Similarly, humic acids were separated into three fractions on Sephadex G-75 (297). [Pg.280]

See other pages where Melanin allomelanins is mentioned: [Pg.115]    [Pg.115]    [Pg.116]    [Pg.286]    [Pg.295]    [Pg.1046]    [Pg.1718]    [Pg.682]   
See also in sourсe #XX -- [ Pg.114 ]



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