Development of Gynura bicolor Tea Beverage

In this paper,the new composite tea beverage was developed with Gynura Bicolor and green tea as the main composite materials,aiming to provide a new development direction for the deep processing of Gynura Bicolor. The optimization formula of the new compound beverage were studied by single-factor and orthogonal experimental test and the homogenization conditions of the Gynura bicolor tea beverage was studied. The results indicated that the best formulation for the Gynura bicolor and tea beverage was as follows:Gynura bicolor juice and tea water in a proportion of 1:1(volume ratio),sugar 5.0%,citric acid 0.05%,xanthan gum as the stabilizer 0.2%,sodium alginate 0.07%,and carboxymethyl cellulose 0.08%. The best homogenization condition for Gynura bicolor tea beverage was twice treatment under homogenization pressure of 30 MPa. With this process,the compound beverage had stable quality and good taste. The soluble solid content of compound beverage was 5.2%(calculated as white sugar),the total phenol was 12.64 mg/mL,the total flavonoid was 0.47 μg/mL,the V_C was 210.16 μg/mL.