除丁酸- 2 -己烯酯和己酸- 2 -己烯酯外，其它酯类的含量随着果实成熟而逐渐增多。

Except 2-hexenyl butanoate and 2-hexenyl hexanoate, the levels of others increased during fruit maturation.

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苯丙氨酸解氨酶（PAL）主要分布在果皮中，并随着果实成熟度的提高，其活性呈极显著下降趋势。感病果实的果皮中三种酶活性均比健康果皮高。

Phenylalanine ammonia-lyase (PAL) is distributed mainly in the peels, and activity of the enzymes decreased very obviously with the increase of fruit ripeness.

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对照果实SPS和ss活性波动幅度大，SPS活性随着果实成熟呈上升的趋势，ss活性上升不大，而套袋果实SPS和ss活性在发育期间变化比较缓和。

There was bigger wave range in activity of SPS and SS in control and the raising trend along with the fruit ripen, but the change wave in bagging fruit is not big during the whole growth period.

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