Two flavonoids were isolated by performing column chromatographic separation of methanol extract of ariel parts of Derris brevipes (Benth) Baker. Structural elucidation of purified compounds was done on the basis of spectral analysis using IR, 1 H NMR, 13 C NMR 2D NMR spectroscopy and Mass spectrometry. The structures of the flavonoids were elucidated as 2’, 4’-dihydroxy-4-methoxy-3’prenylchalc...

Patrice Connelly B. Nat Therapies (SCU), Dip. Nutrition, is a nutritionist, energetic healer and musician practising in Kilcoy, Qld. PO Box 272, Kilcoy QLD 4515. Telephone (07) 5422 0806. [email protected]. Amember of the Asteraceae family, the weed Bidens pilosa Linn. is found throughout the world, probably originating in South America. First noted in Linneus’s Species Plantarum (1753), ...

Graduate School for Integrative Sciences & Singapore, #05-01, 28 Medical Drive, 11745 Department of Chemistry, National Univ 117543, Singapore School of Chemistry and Chemical Engine 400030, P. R. China. E-mail: [email protected] Department of Chemistry, Zhejiang Sci-Tec Chemistry Department, King Fahd Univers 31261, Saudi Arabia. E-mail: nullah@kfupm National University of Singapore (Suzhou) Suzhou...

The role of flavonoids as the major red, blue, and purple pigments in plants has gained these secondary products a great deal of attention over the years. From the first description of acid and base effects on plant pigments by Robert Boyle in 1664 to the characterization of structural and regulatory genes in the late 20th century, a wealth of information has been collected on the structures, c...

The role of flavonoids as the major red, blue, and purple pigments in plants has gained these secondary products a great deal of attention over the years. From the first description of acid and base effects on plant pigments by Robert Boyle in 1664 to the characterization of structural and regulatory genes in the late 20th century, a wealth of information has been collected on the structures, c...