银杏和大蒜的药用在现代植物疗法中是很普及的。直到现在,银杏制品标准化分析尚未建立。蒜氨酸(alliin)被接受为大蒜有效成分蒜辣素(allicin)、蒜烯(ajoene)、二烯丙基二硫化物的前药。用HPLC鉴定(+)-L-蒜氨酸的方法已经报道,这方法主要缺点是蒜氨酸不易得到。它通常不用作参比物而用其相关化合物普通氨基酸S-甲基-L-半胱氨酸。黄酮醇的单、双和三糖甙是极性银杏提取物的主要化合物。已分离到山柰酚、槲皮素和鼠李亭的二十个糖甙。大体上能对全部已知和未知的黄酮类进行定量分析,但这方 The medicinal properties of ginkgo biloba and garlic are very popular in modern phytotherapy. Until now, standardized analysis of ginkgo products has not yet been established. Alliin is accepted as a prodrug of garlic allicin, ajoene and diallyl disulfide. The method of identifying (+)-L-alliine by HPLC has reported that the main disadvantage of this method is that alliin is not readily available. It is usually not used as a reference but its related compound is the common amino acid S-methyl-L-cysteine. Mono-, di- and trisaccharide glycosides of flavonols are the main compounds of polar Ginkgo biloba extracts. Twenty sugar glycosides have been isolated from kaempferol, quercetin, and rattin. In principle, quantitative analysis can be performed on all known and unknown flavonoids, but this