The present invention discloses a preparation method of a cottonseed protein-bayberry tannin complex, comprising: Step 1: mixing cottonseed meal, ascorbic acid and H₂O₂ solution, stirring uniformly, reacting for a period of time, then adding bayberry tannin to obtain a mixture; Step 2: feeding the mixture obtained in Step 1 into a rotating twin-screw extruder for extrusion, drying and grinding the extrudate into powder to obtain the cottonseed protein-bayberry tannin complex. The present invention adopts a free radical method to realize the combination of polyphenols and proteins, which is simple and fast. The obtained cottonseed protein-bayberry tannin complex has excellent antibacterial and antioxidant properties. In addition, the present invention adopts co-extrusion technology and uses the conveying effect of the screw in the extruder to extrude the material through the die, providing a reference for simplifying the process and realizing large-scale sample preparation.
Country Code: CN
Application Number: CN202410429103.3
