NEW PRENYLATED STILBENES AND ANTIOXIDANT ACTIVITIES OF CAJANUS CAJAN (L.) MILLSP. (PIGEON PEA)
ABSTRACT: New Prenylated
stilbene derivatives, 3-hydroxy-4-prenyl-5-methoxy-stilbene acid (1) and
5,4'-dihydroxy-3-methoxy-2-prenyl-stilbene (2) had been isolated from methanol
extract of Cajanus cajan (L.) Millsp. (Pigeon pea), a member of family
fabaceae. The aim of this present work was to evaluate its in vitro antioxidant
activity using 2,2-diphenyl-1-picryhydrazyl (DPPH) radical-scavenging.
Isolation of compounds was achieved by extraction (maceration) and
chromatographic technique. The structures of the compounds were determined
based on UV, IR, 1H-NMR and 13C-NMR spectra and also by comparing with the
previously reported data. Antioxidant activities (IC50) of 1 and 2 were 413.68
μg/mL and 271.53 μg/mL, respectively.
KEYWORDS: Cajanus cajan (L.)
Millsp.; prenylated stilbene; antioxidant; 2,2-diphenyl-1- picryhydrazyl (DPPH)
Author: Taslim Ersam, Sri
Fatmawati, Dini Nur Fauzia
Journal Code: jpkimiagg160089
