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6．3 甘草类黄酮甘草系豆科甘草属(Glycyrrhiza)多年生草本植物,已知种植种有30-40种,一般所用的系指甘草 (Glycyrrhiza uralensis)、欧洲甘草(G．glabra),和膨胀甘草(G．inflata)三种。对甘草利用已有4000多年历史,主要利用其根和根茎作为中药矫味剂。甘草含有水溶性和油溶性两类物质,前者以具有甜味甘草甜素为主要成分,后者则以具有抗氧化活性各种类黄酮为主,称甘草类黄酮(glycyrrhiza flavonoids; FG);故一般先用水提取水溶性甜味物质(一般称甘草浸膏),之后残渣再用脂溶性溶剂(乙醇、丙酮或己烷) 提取而得油溶性物质。
6.3 Glycyrrhiza Flavonoid Glycyrrhiza is a perennial Glycyrrhiza plant of the genus Glycyrrhiza. It is known that there are 30-40 species of planting species. Commonly used components are Glycyrrhiza uralensis, G. glabra, and swell. Three kinds of G.inflata. The use of licorice has been used for more than 4,000 years, mainly using its roots and rhizomes as herbal flavoring agents. Licorice contains water-soluble and oil-soluble substances. The former has sweet glycyrrhizin as the main component, while the latter has anti-oxidation activity of various flavonoids, namely glycyrrhiza flavonoids (FG); Water-soluble sweet substances (generally known as licorice extract) are generally extracted with water, and the residue is then extracted with a fat-soluble solvent (ethanol, acetone or hexane) to obtain an oil-soluble substance.