Now showing items 1-10 of 31
Atividade anti-micobacteriana de extratos de folhas de Byrsonima crassa Nied
In this study, the antimycobacterial activity of chloroformic and methanolic extracts obtained from Byrsonima crassa leaves was evaluated. Antimycobacterial activity was assessed through the microtechnique named Microplate ...
A new tropane alkaloid and other constituents of Erythroxylum rimosum (Erythroxylaceae)
A new tropane alkaloid, named the 7β-acetoxy-3β,6β- dibenzoyloxytropane (1), was isolated from a methanol extract of Erythroxylum rimosum O.E. Schulz leaves. Other known compounds were detected, including quercetin, ...
Coumarins and terpenoids from Dorstenia asaroides Gardn. in Hook
Phytochemical investigation of rhizomes and leaves of Dorstenia asaroides Gardn. in Hook. (Moraceae) afforded the furocoumarins psoralen and bergapten, the triterpenes α-amyrin, α-amyrin acetate, β-amyrin acetate, lupeyl ...
Gastroprotective effects of essential oil from Protium heptaphyllum on experimental gastric ulcer models in rats
(Soc Brasileira FarmacognosiaJoao PessoaBrasil, 2011)
Flavonoids from Chiococca braquiata (Rubiaceae)
A new flavonol 4′-methoxykaempferol-7-(acetyloxy)-3,5-O-α-L- rhamnoside (1), was isolated from the leaves of Chiococca braquiata, along with three known flavonoids apigenin, 7-O-methoxyquercetrin and quercetrin and four ...
Byrsonima fagifolia Niedenzu Apolar Compounds with Antitubercular Activity
(Hindawi Publishing Corporation, 2011-01-01)
Bioassay-guided fractionation of the chloroform extract of Byrsonima fagifolia leaves led to the isolation of active antitubercular compounds alkane dotriacontane (Minimal Inhibitory Concentration-MIC, 62.5 mu g mL(-1)), ...