Made available in DSpace on 2020-12-12T01:37:58Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-09-01; Association for Progressive Communications; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES); Ministério da Ciência, Tecnologia, Inovações e Comunicações; Universidade Federal do Rio Grande do Norte; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); Corn cob is an ...
Cell wall polysaccharides from filamentous fungi and yeasts have been reported as antioxidant and antiproliferative polymers. Thus, we evaluated these activities from cell wall polysaccharides from Kluyveromyces marxianus CCT7735. By using a centrifugal filter, a 203 kDa α-d-mannan (KMM-5) was obtained. KMM-5 exhibited no effect on HeLa cells and a weak antiproliferative activity against Hep-G2 cells. In additi...
Water-insoluble glucan was isolated from the baker’s yeast Saccharomyces cerevisiae. The yeast cells were treated with alkali and the residue then with acid. Chemical and NMR (1D and 2D) analyses showed that a linear (1→3)-β-glucan was purified that was not contaminated with other carbohydrates, proteins or phenolic compounds. The effects of the glucan on wound healing were assessed in human venous ulcers by hi...
Resumo: Os fungos dematiáceos constituem um grupo grande e heterogêneo, caracterizados por possuírem um pigmento escuro, dihidroxinaftaleno melanina-DHN, na parede celular de suas células. Na natureza são encontrados principalmente na microbiota do solo e de matéria orgânica em decomposição, distribuindo-se em regiões de clima tropical e subtropical. Muitos deles são sapróbios de crescimento rápido, entretanto ...