Application of a degreasing process and sequential ultrasound-assisted extraction to obtain phenolic compounds and elucidate of the potential antioxidant of Siparuna guianensis Aublet
This study investigated appropriate means to determine the total phenolic content and antioxidant activity of the leaves of Siparuna guianensis. Evaluation by thin layer chromatography (TLC) revealed phenolic compounds in all extracts. The results were confirmed by high-performance liquid chromatography (HPLC), with the identification and quantification of catechin, epigallocatechin gallate and rutin. The methanolic...