Allomelanin
Mostrando 1-2 de 2 artigos, teses e dissertações.
-
1. Estrutura eletronica de precursores de alomelaninas / Electronic structure of allomelanins precursors
In this work we studied, on the basis of a semiempirical and ab initio approaches, the structure and electronic properties of some allomelanins precursors. Allomelanins are part of an ubiquitous class of dark pigments known as melanins and their precursors are formed by monomers of catechol and o-benzoquinone units. Due to the lack of extensive experimental
Publicado em: 2008
-
2. Degradation of melanin by Aspergillus fumigatus.
A strain of Aspergillus fumigatus from composted coffee and garden wastes utilized natural deproteinized insect, banana, hair, octopus, and synthetic tyrosine and dopa melanins as sole sources of carbon. With a sucrose supplement, degradation was essentially complete after 50 days in Czapek medium pH 6.5 at 30 degrees C. The catabolic rate differed for each