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葛根是中医常用的辛凉解表药之一。近年来采用葛根乙醇浸膏片(愈风宁心片)对高血压症状、心绞痛、突发性耳聋及偏头痛等症均有一定疗效。广东产的粉葛(Pueraria thomsanii Benth.)与野葛(Pueraria lobata(willd.)Ohwi)均收载于中国药典(1977年版一部)上。野葛的黄酮成分已有报导,其中以葛根素(puerarin)为主。粉葛国内尚未见有报导,因此进行粉葛的黄酮成分的研究,实验证实,其中以大豆甙元为主,而葛根素含量甚少。材料来源:广东罗定县加益公社野生及家种粉葛,学名鉴定为Pueraria thomsanii Benth.。一、黄酮成分的分离及提取: 取粉葛根粉碎,用乙醇冷浸提取,过滤,滤液回收乙醇,得浸膏,脱脂,加入适量层析用中性Al_2O_3,混匀,研成细粉,干燥,装入
Pueraria is one of the most commonly used cool and deconstructive medicines in traditional Chinese medicine. In recent years, Kudzu ethanol extract tablets (Yufeng Ningxin Tablets) have certain curative effects on hypertension symptoms, angina pectoris, sudden deafness, and migraine headaches. Pueraria thomsanii Benth. and Pueraria lobata (willd.) Ohwi, both produced in Guangdong, are listed in the Chinese Pharmacopoeia (1977 Edition). The flavonoid composition of Kudzu has been reported, among which puerarin is predominant. Since no studies have been reported in Pueraria lobata, the study of flavonoids in Pueraria lobata has been confirmed. The results confirmed that soybean amaranth was the main component, but puerarin content was very small. Source: Wild and home-grown Pueraria lobata in Jiayi Community, Luoding County, Guangdong Province, identified as Pueraria thomsanii Benth. I. Separation and extraction of flavonoids: Take Pueraria lobata crushed, extracted with ethanol cold leaching, filtered, and recover the ethanol in the filtrate. Obtain the extract and degrease. Add appropriate amount of neutral Al2O3 to the chromatogram, mix, grind into fine powder, and dry. ,load