Abstract: Tea polyphenols composed of five individual catechins were abstracted from green tea and used to complex with papain,bromelain,trypsin,casein,cytochrome C,α-amylase and isolates of soy protein.It was found that tea polyphenols were haze-active when complexed with the proteins. By assaying complex as and sediments the maximum protein recoveries for bromelain,trypsin,casein,cytochrome C and isolates of soy protein were 60%,8%,7%,20%,20% at various tea polyphenols concentrations of 0.7%,0.5%,0.5%,0.8% and 0.8% respectively.Tea polyphenols showed no inhibition for the activity of α-amylse from Aspergillus Oryzae and the activity recoveries of α-amylase and papain reached 71% and 78% respectively at tea polyphenols concentrations of 0.3% and 0.7%.

Key words: Tea polyphenols , Proteins , Complex , Haze-active