Isolasi Skopoletin Dari Buah Mengkudu (Morinda Citrifolia L) Dan Uji Aktivitas Antioksidannya

Scopoletin has been isolated from chloroform fraction of methanolic extract of Mengkudu fruit (Morinda citrifolia L). Its structure was confirmed using infra red spectroscopy and mass spectroscopy. Scopoletin revealed a scavenging activity of 2,2'-diphenil-1-picrylhydrazil (DPPH) radical by IC 50 348.79 μg/mL, 35 times lower than that of vitamin E (IC 50 9.77 μg/mL). Furthermore, scopoletin also showed an antioxidant activity which was lower than that of vitamin E by using linoleic-thiocyanate method