The relation between softening browning and activity of PG and PPO as well as the effect of CaCl 2 and 6 BA solution preharvest treatments on softening browning, PG activity and PPO activity in postharvest Zanhuang Chinese date were studied.

• 试验探讨了鲜枣贮藏过程中果肉软化褐变与 PG活性、PPO活性的关系以及采前 Ca Cl2 和 6 - BA溶液处理对采后枣果果肉软化褐变、PG活性、PPO活性的影响。