枸杞子质量控制成分遴选研究

Selection of the quality control ingredients based on absorption of multicomponent in Fructus Lycii

目的：观察枸杞子化学成分体内吸收代谢情况，结合肠吸收遴选枸杞子质量控制成分。方法采用翻转肠囊与腹主动脉采血等方法，结合 HPLC 指纹图谱，探究枸杞子化学成分的肠吸收及入血情况。结果通过翻转肠囊实验，确定枸杞子中12种化学成分可被小肠吸收，其中成分2、3、4、5、6、9、10、11以原型被吸收；成分1、7、8、12为经肠壁代谢产生的新成分被吸收。对血中多成分指纹图谱进行分析，确定了4种化学成分3、7、10、13可被吸收入血，其中成分3、10以原型直接入血，成分7为经代谢后吸收入血的新成分。结论综合枸杞子肠吸收实验与入血成分分析，可初步遴选出成分3、10、13作为枸杞子的质量控制成分。

Objective To select the components for quality control of Fructus Lycii based on the absorption of its extract. Methods To investigate metabolism of components of Fructus Lycii, everted rat gut sacs was carried out as well as the blood was taken from abdominal aorta,.and all samples were analysised by HPLC. Results There are twelve constituents absorbed between ileum and jejunum of rat , and four constituents were detected in the blood. Compound 2, 3, 4, 5, 6, 9, 10, 11 were absorbed in prototype forms in the intestine directly,and compound 1, 7, 8, 12 were new ones. On the other hand, four compositions（3, 7, 10, 13）could be absorbed into blood through analysis serum samples obtaining from aorta abdominalis of rats. Two of them （3, 10）could be absorbed directly by intestine, while（7）was absorbed into blood in new form . Conclusion Based on the intestinal absorption experiment and analysion of compsition in blood, components （3, 10, 13） can be the quality control ingredients of Fructus Lycii.