Data/hora: 11/06/2024 03:20:28

Provedor de dados: | 60
País: | Brazil
Título: | Phytoconstituents from Sidastrum micranthum (A. St.-Hil.) Fryxell (Malvaceae) and antimicrobial activity of pheophytin a
Autores: | Gomes,Roosevelt Albuquerque; Teles,Yanna Carolina Ferreira; Pereira,Fillipe de Oliveira; Rodrigues,Luis Alberto de Sousa; Lima,Edeltrudes de Oliveira; Agra,Maria de Fátima; Souza,Maria de Fátima Vanderlei de.
Data: | 2015-12-01
Ano: | 2015
Palavras-chave: | Malvaceae/phytochemistry; Sidastrum micranthum/phytochemistry; Sidastrum micranthum/antimicrobial activity/in vitro study; Pheophytins; Medicinal plants.
Resumo: | abstract Sidastrum micranthum (A. St.-Hil.) Fryxell, a member of the Malvaceae family, is called malva preta in Brazil. As this species is commonly used to treat bronchitis, cough, and asthma, better knowledge of its chemical compounds is important. The phytochemical study of its hexane extract, using chromatographic techniques, led to isolation of six compounds: the triterpene isoarborinol, a mixture of sitosterol and stigmasterol, sitosterol-3-O-β-D-glucopyranoside, pheophytin a, and 132-hydroxy-(132-S)-pheophytin a. Structural identification of these compounds was carried out using spectroscopic methods such as IR and 1D and 2D NMR (HOMOCOSY, HMQC, HMBC, and NOESY). Compounds isolated from S. micranthum were screened for their in vitro antifungal and antibacterial activity against twenty fungal and bacterial standard strains. Pheophytin a exhibited antimicrobial action against all microorganisms tested.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502015000400861
Editor: | Universidade de São Paulo, Faculdade de Ciências Farmacêuticas
Relação: | 10.1590/S1984-82502015000400012
Formato: | text/html
Fonte: | Brazilian Journal of Pharmaceutical Sciences  v.51 n.4 2015
Fonte: | info:eu-repo/semantics/openAccess