A certain concentration of Green Tea-Polyphenol(GTP)was effec-tive to protect the juice from oxidation and reduction,while the antioxidant of ascorbic acid and sodium phytase played an opposite role.

• 草莓汁色泽易受氧化、还原而褪色，一定浓度的茶多酚具有显著的护色效果，而异抗坏血酸、植酸钠等抗氧化剂则起反作用。