| Journal: | Anais da Academia Brasileira de Ciencias |
| Database: | PERIÓDICA |
| System number: | 000412254 |
| ISSN: | 0001-3765 |
| Authors: | Silva, Karla M.M. da1 Nobrega, Andrea B. da2 Lessa, Bruno2 Anholeti, Maria Carolina3 Lobao, Adriana Q3 Valverde, Alessandra L4 Paiva, Selma R. de3 Joffily, Ana3 |
| Institutions: | 1Jardim Botanico do Rio de Janeiro, Instituto de Pesquisas, Rio de Janeiro. Brasil 2Fundacao Oswaldo Cruz, Instituto de Tecnologia em Farmacos, Rio de Janeiro. Brasil 3Universidade Federal Fluminense, Instituto de Biologia, Niteroi, Rio de Janeiro. Brasil 4Universidade Federal Fluminense, Instituto de Quimica, Niteroi, Rio de Janeiro. Brasil |
| Year: | 2017 |
| Season: | Sep |
| Volumen: | 89 |
| Number: | 3 |
| Pages: | 1565-1578 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | This study aims the anatomical description and chemical characterization of aerial parts of Clusia criuva Cambess., Clusiaceae in addition to the evaluation of the antioxidant activity of crude extracts, correlated to the flavonoid content. The morphological characterization was performed using traditional techniques of plant anatomy. For phytochemical studies, crude extracts were obtained by static maceration and analyzed by thin layer chromatography. The antioxidant activity and the flavonoids content were determined by colorimetric methods involving, respectively, 2,2-diphenyl-1-picrylhydrazyl free radical and aluminum chloride. C. criuva has uniseriate epidermis, paracytic stomata, hypostomatic leaves, cuticular flanges and cordiform vascular cylinder with accessory bundles. Chemical prospecting confirmed the abundant presence of terpenes and phenols in the extracts of leaves and of fruits. The methanolic extract of seeds showed the lowest EC50 value, but the methanolic extract of pericarps exhibited the highest maximum antioxidant activity. The results suggested a high percentage of flavonoids in the hexanic extract of pericarps, however, this could represent, in fact, the presence of benzophenones. Secretory ducts and the shape of the midrib are diagnostic for C. criuva. The antioxidant activity is not directly related to the flavonoids. The results indicate the importance of future studies with C. criuva chemical constituents |
| Disciplines: | Biología, Química |
| Keyword: | Angiospermas, Fitoquímica, Anatomía vegetal, Flavonoides, Actividad antioxidante, Clusia criuva, Clusiaceae |
| Keyword: | Biology, Chemistry, Angiosperms, Phytochemistry, Plant anatomy, Flavonoids, Antioxidant activity, Clusia criuva, Clusiaceae |
| Full text: | Texto completo (Ver HTML) |
