结论银杏白果多糖（GBSP）是由D甘露糖组成的匀多糖。
CONCLUTION The GBSP was found to be a single sugar consisting of D mannose.
银杏(白果)自古到今就被人们作为食品中的上品，因其营养丰富、口味纯正，是民间不可多得的贡品野珍。
Gingko (Gingko nuts) has ever been regarded by people as the superior among the foodstuffs. Owing to its rich nourishment and pure taste, it served as a wild rarity and tribute for the royal courts.
目的研究超声萃取法萃取银杏外种皮中白果酸的工艺过程。
AimTo study the technical process to extract ginkgolic acids in the exotesta of Ginkgo Biloba L.
银杏茎中萜类内酯含量最低，相当于叶含量的1/3和根含量的1/2。叶中白果内酯含量在总萜类内酯中所占比例较高，而在根和茎中所占比例则较低。
Terpene lactone content of stem were the lowest, corresponding to 1/3 of leaves and 1/2 of root while bilobalide in leaves had a high ratio of total terpene lactone.
银杏茎中萜类内酯含量最低，相当于叶含量的1/3和根含量的1/2。叶中白果内酯含量在总萜类内酯中所占比例较高，而在根和茎中所占比例则较低。
Terpene lactone content of stem were the lowest, corresponding to 1/3 of leaves and 1/2 of root while bilobalide in leaves had a high ratio of total terpene lactone.
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