Abstract:Octenyl succinic anhydride starch hydrolysate(OSA-SH) was obtained by hydrolyzing octenyl succinic anhydride starch (OSA-S) with α-starch enzyme. The structure and composition were investigated by means of X-ray diffraction, Fourier transforms infrared (FT-IR) spectroscopy, UV-Visible spectroscopy, HPLC, etc. And its physico-chemical properties were determined by measuring DE value, viscosity, surface tension, emulsifying properties and other indicators. Results showed that the DE value of OSA-SH was 3.06. the product possessed amorphous structure containing C=C, COOR groups and OSA-SH, which had some good properties such as water solubility, high concentration and low stickiness, surface activity and emulsifying properties.
