多聚半乳糖醛酸酶活性与呼吸强度和内源乙烯的变化趋势较为一致，而果胶甲酯酶活性在整个贮藏期中由高到低变化较为平缓。
The pectin esterase (PE) activity was not obviously associated with the firmness. The activity of PG changed in a certain degree with fluctuation respiration and endogenous ethylene level.
多聚半乳糖醛酸酶活性与呼吸强度和内源乙烯的变化趋势较为一致，而果胶甲酯酶活性在整个贮藏期中由高到低变化较为平缓。
The pectin esterase (PE) activity was not obviously associated with the firmness. The activity of PG changed in a certain degree with fluctuation respiration and endogenous ethylene level.
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