OBJECTIVE To determine the larvicidal efficacy of different solvent leaf extract of Ervatamia coronaria and Caesalpinia pulcherrima against Anopheles subpictus and Culex tritaeniorhynchus. MATERIALS AND METHODS Twenty five early third instar larvae of Anopheles subpictus and Culex tritaeniorhynchus were exposed to various concentrations and were assayed in the laboratory. The larval mortality...

Tabernaemontana catharinensis is a tree rich in indole alkaloids, such as coronaridine and voacangine that have antileishmanial activity. SFE from T.catharinensis using CO2 + 5.1% (m/m) of cosolvent (ethanol, isopropyl alcohol, methanol, water and their mixtures) was studied. The global yields and the compositions of extracts were determined. The data were taken at 250 bar, 45oC, and total solv...

In the present work the pharmacological activities of SFE extracts from T. catharinensis were evaluated. The SFE extracts were obtained using supercritical CO2 plus ethanol as cosolvent (4.6 and 9.2% m/m) at pressures of 250 and 300 bar and temperatures of 35, 45, and 55oC. The crude extracts were solvent-fractionated (hexanic fraction, alkaloid, and aqueous fractions) and analyzed by Thin-laye...