Abstract
Brazil has a large amount of unexplored biodiversity. The goal of this study was to perform chemical characterization and antioxidant activity testing on the bark extract of Cariniana rubra, a Cerrado-growing Brazilian plant. Two extraction methods were used, soxhlet and ultrasound, both with an 70% hydroethanolic solvent, yielding soxhlet (SBE) and ultrasonic (UBE) extracts. Chemical characterization procedures included phytochemical screening, gas chromatography−mass spectrometry (GC–MS), and liquid chromatography with diode array detection (LC-DAD). The antioxidant potential was evaluated using the DPPH•. Phenolic acids (caffeic and ferulic), flavonoids (rutin and quercetin), steroids (campesterol, stigmasterol, and β-sitosterol), and triterpenoids (β-amyrin, β-amyrin acetate, lupeol, lupeol acetate, and taraxasterol) were detected. Both extracts exhibited high antioxidant capacity. Ultrasonic extraction was more effective in obtaining volatile compounds.
Published Version
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