Flavonol glycosides and novel iridoid glycoside from the leaves of Morinda citrifolia

被引:71
作者
Sang, SM
Cheng, XF
Zhu, NQ
Stark, RE
Badmaev, V
Ghai, G
Rosen, RT
Ho, CT
机构
[1] Rutgers State Univ, Dept Food Sci, New Brunswick, NJ 08901 USA
[2] Rutgers State Univ, Ctr Adv Food Technol, New Brunswick, NJ 08901 USA
[3] CUNY Coll Staten Isl, Dept Chem, Staten Isl, NY 10314 USA
[4] Sabinsa Corp, Piscataway, NJ 08854 USA
关键词
iridoid; epimer; Morinda citrifolia; Rubiaceae; DPPH; antioxidant; flavonoid;
D O I
10.1021/jf010492e
中图分类号
S [农业科学];
学科分类号
09 ;
摘要
One new iridoid glycoside and five known flavonol glycosides have been isolated from the leaves of Morinda citrifolia. The new iridoid exists as an epimeric mixture in solution. Complete assignments of the proton and carbon chemical shifts for the individual epimers were accomplished on the basis of high-resolution 1D and 2D NMR data. Their antioxidative activities were measured. All of these compounds showed DPPH free radical scavenging activity at the concentration of 30 muM.
引用
收藏
页码:4478 / 4481
页数:4
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