Phytochemical Analysis and Antioxidant Activities of Prunus Africana Bark, Leea Indica, and Paullinia Pinnata Leaf Extracts

This study analyzed the phytochemical profile and antioxidant activities of Prunus africana bark, Leea indica, and Paullinia pinnata leaves from Cameroon. Methanolic extraction yields were 11.9%, 11.1%, and 10.8% for P. africana, L. indica, and P. pinnata, respectively. Total phenolic content was highest in P. africana bark at 189.0 mg GAE/g, while total flavonoid content was also highest in P. africana at 43.25 mg RU/g. Antioxidant activities were assessed using DPPH, ABTS, and FRAP assays, with P. africana showing the strongest activity. Functional groups such as alkane, alkene, and phenol were identified, and phenolic acids like caffeic and p-coumaric acid were quantified using high-performance liquid chromatography.