The invention belongs to the field of
oat bran deep-
processing, and particularly relates to an
oat bran active
polysaccharide extraction and purification method. The method includes the steps that
polysaccharide is extracted through preprocessing,
degreasing and
ultrasound-
microwave synergistic extraction, and finally the yield, the purity,
monosaccharide composition, the
antioxidant activity andthe antilipidemia activity of the extracted
oat bran active
polysaccharide are analyzed. According to the oat
bran active polysaccharide extraction and purification method, an oat
bran active polysaccharide mixture is extracted by means of an
ultrasound-
microwave synergistic method, the polysaccharide with the
antioxidant and antilipidemia regulating activity is obtained through
dialysis, vacuum concentration and freeze-
drying, the extraction method is simple, the operation cost is low, extraction duration is short, the yield and the purity of the obtained oat
bran active polysaccharide are 8.45% and 93.2% respectively, and the oat bran active polysaccharide has good
antioxidant and antilipidemia regulating activity.