Purple sweet potato pigment is an anthocyanin pigment extracted from the roots and stems of the sweet potato of purple sweet potato. As a new type of natural pigment, it is an ideal natural food coloring pigment with bright color, no toxicity, no odor and multiple nutrients, pharmacological and health functions.
The macroporous adsorbent resin provided by Suzhou Bojie Resin Technology Co., Ltd. can effectively extract purple sweet potato pigment, which has large adsorption capacity, fast adsorption rate, strong selectivity, no other impurities, ethanol desorption, desorption and regeneration process is simple, resin It has high mechanical strength, low dissolution rate and long service life, and has very good economic benefits.