Phytochemical screening and evaluation of antioxidant activity of Callisia repens and Crassula ovata: An in-vitro study

Callisia repens (Turtle vine) and Crassula ovata (Jade) are ornamental plants that have been used pharmacologically as traditional medicine plants. This research aimed to investigate the phytochemistry and antioxidant activities of Callisia repens and Crassula ovata using in vitro models. The phytochemical analysis proved the presence of glycosides & terpenoids in Callisia repens and carbohydrates, proteins, steroids, and triterpenoids, flavonoids, and phenols in Crassula ovata. Further, in the DPPH radical scavenging activity with IC50 at 48.825 mg/ml and 470.314 mg/ml; 81.08 mg/ml and 181.51 mg/ml of hydrogen peroxide (H2O2) scavenging activity for turtle vine and Jade respectively. The potential antioxidant activity might be due to the active phytochemical constituents and hydrogen or electron-donating capacity of the selected ornamental plants.