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银杏(Cinko biloba)又名白果,属裸子植物门银杏纲银杏科,为我国所特有.银杏叶富含黄酮类物质,主要有云香苷、山萘素-3-鼠李糖葡萄糖苷、山萘素、槲皮素、异鼠李素、银杏双黄酮、异银双黄酮、7-去甲基银杏双黄酮,另外还含有银杏内酯.为了解银杏叶保健功能,按卫生部《保健食品功能学评价程序和检验方法》对银杏叶的调节血脂功能进行了测定.1 材料与方法1.1 实验材料与试剂1.1.1 银杏叶水提液制备 采摘新鲜银杏叶,自然干燥,取60g捣碎,加蒸馏水500ml浸泡1h,沸水浴内回流加热2h,滤液浓缩至50ml,存冰箱备用.1.1.2 实验动物 健康Wistar大鼠40只.雌性,体重150～200g(批准文号为医动字第8707M01号),
Ginkgo biloba (Cinko biloba), also known as ginkgo, is a gymnosperm phylum Ginkgo biloba. It is endemic to our country. Ginkgo biloba is rich in flavonoids, mainly gerberol, kaempferol-3-rhamnose glucoside, and mountain. Naphthalene, quercetin, isorhamnetin, ginkgo biflavonoids, isoflavones, 7-desmethyl ginkgo biflavonoids, ginkgo lactones. In order to understand the health functions of Ginkgo biloba, according to the Ministry of Health "Health Food Functional Evaluation Procedures and Test Methods” The blood lipid function of ginkgo biloba was measured.1 Materials and methods 1.1 Experimental materials and reagents 1.1.1 Ginkgo biloba extract Preparation of fresh Ginkgo biloba leaves, naturally dry, 60 g crushed, Distilled water 500ml soak 1h, boiling water bath heated reflux 2h, the filtrate was concentrated to 50ml, stored in the refrigerator for use.1.1.2 Experimental animal health Wistar rats 40. Female, weighing 150-200g (Approved for the medical word 8707M01 number),