Figure 3: Fourier transform infrared spectrum of HSP-1: OH stretching(3200-3600 cm-1), CH stretching (2800-3000 cm-1 ), CO stretching (1600-1700 cm-1), CH vibration (1200-1400 cm-1) and C-O-C stretching (1000-1200 cm-1) implied that the glycosidic structures of HSP-1 were pyranoid form; characteristic absorptions at 840 cm-1 and the absence at 890 cm-1indicated that there was only α-configuration, inexistence of β-configuration in the structure of HSP-1