Phenolic compounds and antioxidant activities of Liriope muscari.
Five phenolic compounds, namely N-trans-coumaroyltyramine (1), N-trans-feruloyltyramine (2), N-trans-feruloyloctopamine (3), 5,7-dihydroxy-8-methoxyflavone (4) and (3S)3,5,4'-trihydroxy-7-methoxy-6-methylhomoisoflavanone (5), were isolated from the fibrous roots of Liriope muscari (Liliaceae). Compounds 2-5 were isolated for the first time from the Liriope genus. Their in vitro antioxidant activities were assessed by the DPPH and ABTS scavenging methods with microplate assays. The structure-activity relationships of compounds 1-3 are discussed.
National Institutes for Food and Drug Control, Beijing 100050, China.
Wen Jie
WJ
Li
Xian Long
XL
Cheng
Jing
J
Liu
Rui Chao
RC
Lin
Gang Li
GL
Wang
Shu Shan
SS
Du
Zhi Long
ZL
Liu
D000975:Antioxidants / Q000494:pharmacology*; D002853:Chromatography, Liquid; D031424:Liriope Plant / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D010636:Phenols / Q000494:pharmacology*; D018517:Plant Roots / Q000737:chemistry; D013329:Structure-Activity Relationship
D000975:Antioxidants; D010636:Phenols