Figure 1

HPLC profile of Polygonum minus water extract. A. The peaks correspond to 2 compounds identified as Quercetin-3-glucuronide and Quercitrin identified at RT 7.150 min and 13.975 min, respectively. B. The UV spectrum of Quercetin-3-glucuronide identified with respect to its’ retention time. C. The UV spectrum of Quercitrin identified with respect to its’ retention time.