Green technologies applied to extraction processes and analysis of polyphenolic compounds from Inga laurina Willd.

This study aimed to identify an efficient and sustainable extraction method for phenolic compounds and flavonoids from I. laurina using maceration (conventional), ultrasonic bath and probes, cup horn sonication, and microwave. It evaluated extraction parameters and assessed total phenolic compounds, flavonoids, antioxidant, and antimicrobial capacities, with annotated compounds via ESI-ToF-MS and the green analytical procedure index analysis.

Antibacterial cyclopeptide alkaloids from the bark of Condalia buxifolia.

The cyclopeptide alkaloid, named condaline-A, was isolated from the root bark of Condalia buxifolia Reissek (Rhamnaceae), along with the known compounds adouetine-Y', scutianine-B, and scutianine-C. Their structures were determined by spectroscopic analyses, with their antibacterial activities being evaluated by use of a direct bioautography method.