Stilbene derivatives from Gnetum gnemon Linn.
Four stilbene derivatives, gnemonols K and L (resveratrol trimers), M (isorhapontigenin dimer), and gnemonoside K (glucoside of resveratrol trimer) together with eleven known stilbenoids and a lignan were isolated from the acetone, methanol and 70% methanol soluble parts of the root of Gnetum gnemon (Gnetaceae). The structures of the isolates were determined by spectral analysis. The antioxidant activity of the stilbenoids on lipid peroxide inhibition and super oxide scavenging activity were also investigated.
Iliya
Ibrahim
I
Gifu Pharmaceutical University, 5-6-1, Mitahora-higashi, Gifu 502-8585, Japan.
Ali
Zulfiqar
Z
Tanaka
Toshiyuki
T
Iinuma
Munekazu
M
Furusawa
Miyuki
M
Nakaya
Ken-ichi
K
Murata
Jin
J
Darnaedi
Dedy
D
Matsuura
Nobuyasu
N
Ubukata
Makoto
M
D000975:Antioxidants / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D016166:Free Radical Scavengers / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D035684:Gnetum / Q000737:chemistry*; D007214:Indonesia; D008054:Lipid Peroxides / Q000037:antagonists & inhibitors; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D018517:Plant Roots / Q000737:chemistry; D013267:Stilbenes / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D013481:Superoxides / Q000737:chemistry
D000975:Antioxidants; D016166:Free Radical Scavengers; D008054:Lipid Peroxides; D013267:Stilbenes; D013481:Superoxides