Fig. 7.

Chromatogram and UV spectrum of the aqueous extract of BD. Aqueous extract of burdock root (10 mg/ml deionized water) was introduced into C18 column and eluted by the gradient using mixture of acetonitrile and 0.1% acetic acid. The representative UV spectrum is shown. (inlet) Chlorogenic acid (1 mg/ml in DMSO) was introduced and the representative UV spectrum is shown