该两种酶、尤其是多聚半乳糖醛酸酶影响了果实质地及组织的稳固结构。
Those two enzymes, especially the PG, had effects on the stability of fruit structure.
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.
贮藏对冬枣果实呼吸强度、硬度、非水溶性果胶含量及多聚半乳糖醛酸酶（PG）活性的影响。
The changes of fruit respiration intensity, firmness, non-water soluble pectin content and PG activity of Dongzao jujube(Zizyphus Jujuba) stored in five different atmospheic pressures(86.
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