Abstract
Angelica dahurica has been frequently used as a food additive and a folk medicinal herb in Asian countries. The aim of this study was to isolate key active compounds from A. dahurica with antioxidant and anticancer activities. Three new furocoumarin dimers and twenty known coumarins were obtained from A. dahurica. Their structures were identified by extensive 1D and 2D NMR, CD, and HR-ESIMS spectroscopic analyses and screened by UPLC-MS/MS. Imperatorin oxypeucedanin hydrate, xanthotoxol, bergaptol, and 5-methoxy-8-hydroxypsoralen exhibited moderate DPPH• scavenging activity and strong ABTS•+ scavenging activity. Isoimperatorin, phelloptorin, and pabularinone showed significant inhibition on HepG2 cells with IC50 values of 8.19, 7.49, and 7.46 µM, respectively. Furthermore, pabularinone also showed moderate inhibition on HeLa cells with an IC50 value of 13.48 µM. These results suggested that A. dahurica could be explored as new and potential natural antioxidants and cancer prevention agents for use in functional foods.
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