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Quantitative Study of Flavonoids in Leaves of Citrus Plants

2000; American Chemical Society; Volume: 48; Issue: 9 Linguagem: Inglês

10.1021/jf000100o

1520-5118

Satoru Kawaii, Yasuhiko Tomono, Eriko Katase, Kazunori Ogawa, Masamichi Yano, M. Koizumi, Chihiro Ito, Hiroshi Furukawa,

Phytochemistry and Biological Activities

Leaf flavonoids were quantitatively determined in 68 representative or economically important Citrus species, cultivars, and near-Citrus relatives. Contents of 23 flavonoids including 6 polymethoxylated flavones were analyzed by means of reversed phase HPLC analysis. Principal component analysis revealed that the 7 associations according to Tanaka's classification were observed, but some do overlap each other. Group VII species could be divided into two different subgroups, namely, the first-10-species class and the last-19-species class according to Tanaka's classification numbers. Keywords: Citrus; near-Citrus relatives; flavonoids; demethylnobiletin; HPLC; principal component analysis