Phenolic contents and antioxidant activity of some food and medicinal plants.

摘要

To identify promising sources of antioxidants, some food and medicinal plants were studied for total phenolic contents and antioxidant activity. The leaves, bark and fruits of Terminalia arjuna, Terminalia bellirica, Terminalia chebula and Terminalia muelleri, the leaves and fruits of Phyllanthus emblica, and the seeds of Syzygium cumini were found to have high total phenolic contents (72.0-167.2 mg/g) and high antioxidant activity (69.6-90.6%). Leaves of Eucalyptus globulus were a rich source of rutin, Moringa oleifera for kaempferol, aerial parts of Centella asiatica for quercetin, fruits of T. bellirica and T. chebula for gallic acid, and bark of T. arjuna, leaves and fruits of T. bellirica and bark, leaves and fruits of T. muelleri for ellagic acid..