Clusia criuva Cambess. (Clusiaceae): anatomical characterization, chemical prospecting and antioxidant activity
AUTOR(ES)
SILVA, KARLA M.M. DA, NÓBREGA, ANDREA B. DA, LESSA, BRUNO, ANHOLETI, MARIA CAROLINA, LOBÃO, ADRIANA Q., VALVERDE, ALESSANDRA L., PAIVA, SELMA R. DE, JOFFILY, ANA
FONTE
An. Acad. Bras. Ciênc.
DATA DE PUBLICAÇÃO
31/07/2017
RESUMO
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.
Documentos Relacionados
- Dois casos de poliembrionia em Clusiaceae: Clusia criuva Cambess. e Clusia fluminensis Planch. & Triana
- Physical-chemical characterization, bioactive compounds, and antioxidant activity of pulp and peel of the Jamelão
- Chemical characterization, antioxidant and antimicrobial activity of propolis obtained from Melipona quadrifasciata quadrifasciata and Tetragonisca angustula stingless bees
- Anti-Mycobacterium tuberculosis activity and cytotoxicity of Calophyllum brasiliense Cambess (Clusiaceae)
- Teores foliares e esclerofilia de Calophyllum brasiliense Cambess. (Clusiaceae) e suas relações edáficas no litoral do Estado do Paraná, Brasil