Using the banjhi shoots with two or three leaves of cultivar Jiukeng,activities variations of polyphenol oxidase(PPO)and peroxidase(POD)were investigated.

• 以鸠坑种的夏茶对夹二、三叶新梢为原料,研究了两种做青方法过程中多酚氧化酶(PPO)、过氧化物酶(POD)的活性变化。