The main functional components in the leaves of eucommia are pinoresinol diglucoside, aucubin, kaempferol, quercitinand chlorogenic acid.

杜仲叶主要成分有松脂醇二葡萄糖、桃叶、山柰黄素、皮素、绿原。

In storage, the influence of antioxcidant to acid value of eucommia crude oil was faintish and the influence of freshness degree of seeds was notable.

过程中，杜仲原油的值受抗氧化剂的影响较小，受杜仲种子新鲜程度的影响较大。