Planta Med 2001; 67(4): 345-349
DOI: 10.1055/s-2001-14319
Original Paper
Natural Product Chemistry
© Georg Thieme Verlag Stuttgart · New York

Alkaloids and Flavonoids from Peanut Skins

Hongxiang Lou1,*, Huiqing Yuan1 , Yoshimitsu Yamazaki2 , Tsutomu Sasaki2 , Syuichi Oka2
  • 1 School of Pharmaceutical Sciences, Shandong University, Jinan, P. R. China
  • 2 National Institute of Bioscience and Human Technology, Agency of Industrial Science and Technology, Ibaraki, Japan
Weitere Informationen


June 30, 2000

August 26, 2000

31. Dezember 2001 (online)


Separation of the water-soluble fraction of peanut skins led to the isolation of 8 flavonoids and two novel indole alkaloids. Two new flavonoid glycosides have been identified as isorhamnetin 3-O-[2-O-β-glucopyranosyl-6-O-α-rhamnopyranosyl]-β-glucopyranoside and 3′,5,7-trihydroxyisoflavone-4′-methoxy-3′-O-β-glucopyranoside. Two alkaloids are 2-methoxyl-3-(3-indolyl)-propionic acid and 2-hydroxyl-3-[3-(1-N-methyl)-indolyl]-propionic acid. These isolated flavonoids were evaluated for their free radical scavenging activity and protein glycation inhibitory effects.


Dr. Lou Hongxiang, Professor of Natural Products Chemistry 

School of Pharmaceutical Sciences

Shandong University

Jinan 250012

Shandong Province

P. R. China

eMail: [email protected]

Fax: 86-0531-2942373