Composition and antioxidant activity in vitro of different St. Johns Wort (Hypericum perforatum L.) extracts

Dynamic Chiropractic

关键词: Antioxidant activity;    flavonoids;    hyperforin;    hypericin;    Hypericum perforatumL.;    St. John’    s wort tea.;   

DOI  :  

学科分类：医学（综合）

来源: MPA Media

【 摘 要 】

Current literature reports a wide variability in active compounds content in marketedHypericum(Hypericum perforatumL.) preparations. In order to avoid influences by soil, climate, collection time and storage, several extracts were prepared, with different solvents, from a single stock of plant drug, collected from the wild. They werehigh performance liquid chromatography(HPLC) analyzed, and results were coupled with an evaluation of the antioxidant activityin vitroof each extract. Also water extracts maintained a good activity, although they were obviously lacking hypericin and hyperforin. In this sense, the home made St. John’s wort teas should be re-valued as possible beverages with interesting antioxidant properties.

【 授权许可】

Unknown