Contribuição ao estudo de polifenoloxidase e ascorbato oxidase de polpa de Passiflora edulis (maracujá-amarelo) visando o processamento industrial de suco

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Influência da inibição da NADPH oxidase sobre o redemodelamento cardíaco de ratos com diabetes mellitus

Pós-graduação em Fisiopatologia em Clínica Médica - FMB

Apocinina e metóxi-catecóis correlatos: relação entre estrutura molecular e inibição da ativação do complexo NADPH oxidase

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Reguladores vegetais e bioestimulantes no desenvolvimento de Salvia officinalis L: avaliações fisológicas, bioquímicas e fitoquímicas

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Effect of treatment with l-amino oxidase fractions, from Bothrops jararaca venom on Ehrlich ascites tumor growth

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Amperometric glucose biosensor based on layer-by-layer films of microperoxidase-11 and liposome-encapsulated glucose oxidase

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Photodegradation of phenol red on a Ni-doped niobate/carbon composite

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Chromosomal Mapping of Repetitive DNA and Cytochrome C Oxidase I Sequence Analysis Reveal Differentiation among Sympatric Samples of Astyanax fasciatus (Characiformes, Characidae)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Antioxidant activity and determination of total phenol contents, carotenoids, beta-carotene, lycopene and zinc in white, yellow and pinkish varieties of manihot esculenta crantz

There are cassava varieties that present compounds as carotenoids, beta-carotene, lycopene and minerals important for human and animal health. The present study evaluated the antioxidant activity of the white, yellow and pinkish varieties of Manihot esculenta, by mean of the DPPH test and by the ferrous ion-chelating activity. Furthermore, the total phenols, carotenoids, beta-carotene, lycopene and zinc contents were also determined. Utilizing the DPPH test it was possible to find that extracts of boiled samples presented higher antioxidant activity (89.53% -pinkish) in comparison to the fresh samples (1.97% -white). For the ferrous ion-chelating test, the highest activity was found for the boiled pinkish variety extract (63.43%) and the lowest was for fresh yellow extract (17.34%) the white sample did not present activity. The highest concentration of total phenols and zinc content was obtained for the boiled pinkish variety extract 136.12 mg EAG/g of extract and 0,811ppm, respectively, in the concentration of 1000 mu g/mL. The pinkish variety presented also higher quantity of pigments, including carotenoid (29.40 mu g/g), beta-carotene (9.14 mu g/100g) and lycopene (68.92%). According to the results obtained in this study it was possible to conclude that the yellow and pinkish varieties of M. esculenta present quantity of phenolic compounds and minerals sufficient to attribute the antioxidant activity and may thus contribute to reduce oxidative damage and be used as nutraceuticals or directly ingested in the diet to maintain good health.

Molecular characterization of fire ants, Solenopsis spp., from Brazil based on analysis of mtDNA gene cytochrome oxidase I

Species from the Solenopsis saevissima (Smith) (Hymenoptera: Formicidae) species group are native to South America and have a cosmopolitan distribution because they have been accidentally introduced in many countries around the world. In Brazil, they have a wide distribution, including urban areas. The present study was conducted to investigate the characterization of Solenopsis genus populations associated with urban/human interference sites in Brazil by analyzing the mitochondrial gene cytochrome oxidase I and estimating the degree of relatedness of these populations to make inferences about their phylogeny and also observe the patterns of mitochondrial haplotype (mitotype) distribution across their range. The results revealed complete geographical coherence and polyphyly for the Solenopsis invicta Buren and Solenopsis saevissima species groups, which confirms the diversity of the genera. It also suggests the possibility that reproductively-isolated populations occur, resulting in the evolutionary process of speciation. No predominant haplotype was found in the populations analyzed, but some were more prevalent.

Crystallization and preliminary X-ray diffraction studies of an L-amino-acid oxidase from Lachesis muta venom

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Produção de enzimas ligninolíticas, glioxal oxidase e proteases por fungos marinhos

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)