Abstract: The processing of oil- soluble tea polyphenols (TP) was studied,made by of microencapsulation of technique of cold spray method,dried in vacum. The optimum composition of the wall materials was investigated by orthogonal arrays as follows: emulsifiers A: B: C =8:0.3:1.7? Microencapsulating rate of tea polyphenols was 67.5% . The product could disperse equally in oil and its antioxidation effect in oil was better than propyl gallate (PG) and butylated hydroxyanisole (BHA).

Key words: Microencapsulation Tea polyphenols Antioxidation