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- Title
DPPH radical-scavenging effect on some constituents from the aerial parts of Lippia triphylla.
- Authors
Ono, Masateru; Oda, Eriko; Tanaka, Takemi; Iida, Yoshihiko; Yamasaki, Toru; Masuoka, Chikako; Ikeda, Tsuyoshi; Nohara, Toshihiro
- Abstract
Lippia triphylla (L'HER) O. KUNTZE: (Verbenaceae; common name, Lemon Verbena) is used in Peru as a spice and herb tea for the prevention of arteriosclerosis. From the aerial parts of this plant, 25 known compounds--3 phenylpropanoid glucosides, 7 flavonoids, 5 phenylethanoid glycosides, 5 lignans, 2 sesquiterpenoids, and 3 triterpenoids--were isolated, and their chemical structures were elucidated on the basis of physical and spectral data. Among them, 19 aromatic compounds were examined for their scavenging effect on the stable free radical 1,1-diphenyl-2-picrylhydrazyl--4 phenylethanoid glycosides and 5 lignans indicated a potent scavenging effect. Of note, the EC(50) values of two phenylethanoid glycosides reached almost thrice that of alpha-tocopherol.
- Publication
Journal of natural medicines, 2008, Vol 62, Issue 1, p101
- ISSN
1861-0293
- Publication type
Journal Article
- DOI
10.1007/s11418-007-0197-9