The mixed clarifying agent, which is made from gelatines, digallic acids and PVP, is added to the passiflora edulis juice. The test shows that the effect is good.

• 采用明胶、丹宁酸和PVP制成的复合澄清剂，按一定比例添加到西番莲果汁中，经实验证明，效果较好。