Dendrobium cv. Pompadour

The anthocyanin composition of flowers has also been frequently investigated by chromatographic methods. Acylated anthocyanins and flavonols have been extracted from the flowers of Dendrobium cv. Pompadour and separated by TLC and RP-HPLC techniques. Fresh flowers (approximately. 1 kg) were extracted with 101 of methanol-acetic acid-water (4 1 5, v/v), and the extract was concentrated and analysed by preparative and analytical RP-HPLC using ODS columns (150 X 19 mm i.d. and 250 X 4.6 mm i.d.) at 40°C. The gradient consisted of methanol-water-acetic acid in various volume ratios. Flow rates were 4 and 1 ml/min for preparative and analytical separations, respectively. Cyanidin 3- (6-malonylglucoside)-7,3 -di(6-synapilglucoside) and the demalonyl derivative were detected in the flowers [261],... 

C.A. Williams, J. Greenham, J.B. Harborn, J.-M. Kong, L.- S. Chia, N.-K. Goh, N. Saito, K. Toki and F. Tatsuzawa, Acylated anthocyanins and flavonols from purple flowers of Dendrobium cv. Pompadour . Biochem. Syst. Ecol. 30 (2002) 667-675. 

Williams, C.A. et al., Acylated anthocyanins and flavonols from purple flowers of Dendrobium cv. Pompadour , Biochem. Syst. Ecol., 30, 667, 2002. 

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