Antioxidant activities of coumarins from Korean medicinal plants and their structure-activity relationships.

@article{Thuong2010AntioxidantAO,
  title={Antioxidant activities of coumarins from Korean medicinal plants and their structure-activity relationships.},
  author={Phuong Thien Thuong and Tran Hung and Tran Minh Ngoc and Do Thi Thu Ha and Byung Sun Min and Seung Jun Kwack and Tae Suk Kang and Jae Sue Choi and Kihwan Bae},
  journal={Phytotherapy research : PTR},
  year={2010},
  volume={24 1},
  pages={101-6}
}
The aim of this work was to study the structure-activity relationships of the antioxidant activity of natural coumarins isolated from four Korean medicinal plants (1-17) and four purchased coumarins (18-21). The free radical scavenging and lipid peroxidation assays revealed that five phenolic coumarins, scopoletin (1), aesculetin (2), fraxetin (3), umbelliferone (18) and daphnetin (19), possessed considerable antioxidant activities. The coumarins having a catechol group, 2, 3 and 19, showed… CONTINUE READING