The invention discloses a method for extracting tea polysaccharide from tea residues. The method comprises the following steps: 1, tea residue pretreatment; 2, microwave wall breaking; 3, variable-frequency ultrasonic composite enzymolysis; 4, centrifugal concentration; 5, alcohol precipitation; and 6, washing and drying. According to the method, the advantages of various extraction methods are combined, the technical characteristics of microwave, ultrasonic wave and enzyme treatment are effectively combined, the wall breaking efficiency is effectively improved, the polysaccharide structure is...
