Antioxidant Activity and Antocyanin Derivatives Study of Red Katuk (Euphorbia cotinifolia L.) Leaves
Abstract: In this study,
antioxidant activity and antocyanin derivatives study of extract of red katuk
(Euphorbia cotinifolia L.) leaves was done. Antioxidant activity was done by
DPPH (2,2-diphenyl 1-picrylhydrazyl) method using ultraviolet-visible
spectrophotometer and thin layer chromatography. The result showed that
methanol extract had antioxidant activity with IC50 value 33.13 μg/mL. Vitamin
C as comparative substance had IC50 value was 5.24 μg/mL. From the acidified
methanol extract, two anthocyanin derivatives have been isolated by preparative
paper chromatography and characterized by ultraviolet visible
spectrophotometry, which were supposed to be peonidin and cyanidin.
Keywords: Euphorbia
cotinifolia L, antioxidant, antocyanin
Penulis: Ria Mariani, Iwang S.
Soediro, Setiadi Ihsan, Sinta Eva, Desi Nuraisyah
Kode Jurnal: jpfarmasidd130428
