Cardiovascular Effects of a Glycosylated Flavonoids-Rich Leaf Extract from Brazilian : A Potential Health Bio-Input.

: Bioactivity assessments of plant-derived products can benefit human and animal health, especially in regions with vast plant diversity. This study focused on chemical and cardiovascular analyses of A. St.

Phytochemical and antimicrobial evaluation of Triana (Melastomataceae).

Four novel triterpenoid saponins, 1,3,23-trihydroxy-olean-12-en-28-oic acid 28---glycopyranoside ester (), 1,3,23-trihydroxy-urs-12-en-28-oic acid 28---glycopyranoside ester (), 3---galloyl-1,23-dihydroxy-olean-12-en-28-oic acid 28---glycopyranoside ester () and 3---galloyl-1,23-dihydroxy-urs-12-en-28-oic acid 28---glycopyranoside ester () and two new pentacyclic triterpenoids, 3-----coumaroyl-1-hydroxy-urs-12-en-28-oic acid () and 3-----coumaroyl-1-hydroxy-urs-12-en-28-oic acid (), together with six known compounds were isolated from the ethanolic extracts of leaves and stem bark. Their structures were established by HR-MS, 1D and 2D NMR and comparison with literature data. Additionally, the antimicrobial activity of the leaves and stem bark extracts and fractions was evaluated using the micro broth dilution technique.

Vogel (Fabaceae): phytochemical study and toxicity to Linnaeus (Hymenoptera: Formicidae).

In this work was described the phytochemical investigation of Vogel (Fabaceae) leaves as well as the insecticidal activity of its crude extract and fractions against Linnaeus (Hymenoptera: Formicidae). The phytochemical study led to the identification of α-amyrin, β-amyrin, lupeol, phytol, isomucronulatol and rutin, described for the first time in and mucronulatol. Insecticidal activity was assessed by the ingestion of the crude extract and fractions incorporated into an artificial diet at three different concentrations (0.