【摘要】 目的 :分离鉴定甘肃黄芩丙酮提取物的抗氧化有效成分。方法 :采用色谱柱进行分离 ,以波谱及标准品方法鉴定化合物的结构。结果 :从丙酮提取物中分离得到了 5个化学成分 ,分别为千层纸素A(oroxylinA ,Ⅰ )、汉黄芩素 (wogonin ,Ⅱ )、黄芩素 (baicalein ,Ⅲ )、甘黄芩苷元 (ganhuangenin ,Ⅳ )、甘黄芩素 (ganhuangemin ,Ⅴ )。从甲醇提取物得到黄芩苷 (baicalin ,Ⅵ )。结论 :甘黄芩素 (ganhuangemin)为首次从甘肃黄芩中分离得到的二氢黄酮醇类化合物 ,黄芩素和甘黄芩苷元有较强的抗氧化活性 ,明显的高于BHT(butylatedhydroxytoluene)的抗氧化活性。更多还原

【Abstract】 Objective: To isolatate and elucidate the an tioxidant constituents from acetone extract of Scutellaria rehderiana. Method: Chemical constituents were isolated by several column c hromatographies and their structures were elucidated on the basis of standard co mpounds and spectral analysis. Result: Five compounds, oro xylin A, wogonin, baicalein, ganhuangenin, ganhuangemin were isolated from aceto ne extract of S. rehderiana. Baicalin was obtained from methanol extract of S. rehderiana. Conclusion: Ganhuangemin was isolated f rom the plant for the first time. Baicalein and ganhuangenin have stronger antio xidant activity than that of BHT (butylated hydroxytoluene).[更多还原