SKRINING FITOKIMIA, KANDUNGAN FLAVONOID TOTAL, DAN AKTIVITAS ANTIOKSIDAN EKSTRAK ETANOL TUMBUHAN Selaginella doederleinii

PHYTOCHEMICAL SCREENING, TOTAL FLAVONOIDS CONTENT, AND ANTIOXIDANT ACTIVITY OF THE ETHANOL EXTRACT OF Selaginella doederleinii

Selaginella doederleinii is one of the ferns originating from China, but has been cultivated in Indonesia. These plants used by the community to improve blood flow, eliminate swelling, antitoxic, anticancer, and stop bleeding (hemostasis). This research was conducted to determine the phytochemical content, total flavonoids content, and antioxidant activity of the ethanol extract of S. doederleinii. Extraction was carried out by maceration method and the resulting extract was a dark green solid. The ethanol extract was analyzed for its secondary metabolite content by phytochemical screening. Determination of the total flavonoid content  was determined using spectroscopic with an aluminium chloride reagent. The antioxidant activity was determined using the DPPH method. The results of   phytochemical screening the ethanolic extract of S. doederleinii contained phenolics, alkaloids, saponins, steroids, flavonoids, and tannins. The flavonoid content in the ethanol extract of S. doerdeleinii was 17,615 mg QE/gram extract. Based on the antioxidant activity test, it was obtained the IC₅₀ value of 128.696 ppm, so the ethanol extract of S. doederleinii had moderate antioxidant activity.

Keyword: Selaginella doederleinii, total flavonoids content, antioxidant activity