Theresults showed that both PPO activities and total phenols were highest inpeel medium in core and lowest in pulp,and that there was a positivecorrelation between PPO activities and total phenols.

• 实验结果表明:PPO活性与总酚含量在果实不同部位具有相同的分布趋势,果皮最高,果心次之,果肉最低; PPO活性与总酚含量的变化存在正相关性。