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Paper | Regular issue | Vol 78, No. 9, 2009, pp.2287-2294
Published online, 15th May, 2009
DOI: 10.3987/COM-09-11719
Flavonoid Glycosides Isolated from the Blue Flowers of Nigella damascena

Kenjiro Toki,* Norio Saito, Ai Nogami, Fumi Tatsuzawa, Atsushi Shigihara, and Toshio Honda

*Laboratory of Floriculture, Faculty of Floriculture, Minami-Kyushu University, 11609 Takanabe, Koyu-gun, Miyazaki 884-0003, Japan

Abstract

Two new kaempferol glycosides (1 and 2) were isolated from the blue flowers of Nigella damascena cv ‘Ms Jekyll Blue’ along with a known anthocyanin (3). The structures of 1 and 2 were elucidated by application of chemical and spectroscopic methods. Compound (3) was a rarely observed anthocyanin in plants.