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银杏全身是宝,利用价值极高.叶内所含成分比较复杂,其提取物已被制成多种针剂、片剂,用来治疗冠状动脉硬化、心绞痛和脑血栓等疾病.为提高其叶内有效成分含量,适期采收便显得十分重要.现将我县银杏基地3年来的采摘经验总结于下.1 采摘时间.目前,发现银杏叶粗提取物中含有4种银杏苦内酯,即银杏苦内酯A、B、C、M,含有4种双黄酮,即西阿多黄素、银杏黄素、异银杏黄素、白果黄素.测定发现,银杏叶中的双黄酮含量以夏季最少,仅含4.4%,春季次之,为5.2%.秋季叶未变色
Ginkgo biloba body is a treasure, the use of high value. The ingredients contained in the leaves are more complex, its extract has been made into a variety of injections, tablets, used to treat coronary artery disease, angina and cerebral thrombosis and other diseases. To improve its leaves The effective content of the active ingredient is very important for proper harvesting. Now the experience of picking in our county’s Ginkgo Base for the past three years is summarized in the following.1 Picking time. At present, it has been found that Ginkgo biloba extract contains four kinds of Ginkgolides, Namely, Ginkgo Biloba Lactones A, B, C, and M contain four kinds of biflavonoids, ie, ciaxiside, ginkgetin, iso-ginkgetin, and flavonoids. The results showed that the content of biflavonoids in Ginkgo biloba L The summer minimum is 4.4%, followed by spring, 5.2%. Autumn leaves are not discolored