Skrining Fitokimia Dan Potensi Antioksidan Dari Ekstrak Daun Tumbuhan Ekor Tikus (Stachytarpheta jamaicensis L) Dengan Metode 1.1 Diphenyl-2-Picrylhydracyl (Dpph)

Stachytarpheta jamaicensis L Phytochemical Screening Antioxidants DPPH. Ekor tikus (Stachytarpheta jamaicensis L.) are family of verbenaceae. Ekor tikus (Stachytarpheta jamaicensis L.) or pecut kuda, The aim of this study was determining the potential of the leaves of ekor tikus that growing in Tomohon city based on phytochemicals content and antioxsidant activities. The leaves of ekor tikus extract done extraction with using maceration terraced methods used n-heksan, ethyl acetate and ethanol 96%. Phytochemicals screening are used some reagent that 's adapted to type of phytochemical test. Dpph methods are used to evaluate the antioxidant activities. The results showed that n-hexane extract contained steroids, tannins and saponins, IC50 value of 19.76 μg / mL. Ethyl acetate extract has steroid and tannin content, IC50 value of 12.91 μg / mL. Ethanol extract contains alkaloids, flavonoids, triterpenoids, tannins and saponins, IC50 values 16.66 μg / mL.