A Comparative Study on the Antioxidant Activity of Commonly Used South Asian Herbs

10.4103/2225-4110.119725

Viduranga Waisundara；Lee Yian Hoon

Oxygen radical absorbance capacity ； Reactive oxygen species ； Superoxide dismutase

Journal of Traditional and Complementary Medicine

3卷4期（2013 / 10 / 01）

263 - 267

英文

The antioxidant activities of curry leaves, fenugreek seeds, Indian malabar leaves, red silk cotton tree leaves, cowitch leaves, holyfruit tree leaves, and black mustard seeds were compared. Their effects on reactive oxygen species (ROS) and superoxide dismutase (SOD) activity were investigated. The Oxygen Radical Absorbance Capacity (ORAC) assay determined the antioxidant potential of the extracts, while the ROS scavenging ability was explored in hyperglycemia-induced human umbilical vein endothelial cells (HUVECs). The SOD assay determined if the extracts stimulated the enzyme activity in the HUVECs. Curry leaf and fenugreek extracts had high ORAC values and superior free radical scavenging abilities compared with the rest of the extracts. The curry leaf extract had also increased the SOD activity. Fenugreek extract had not increased the SOD activity of the HUVECs. Thus, the two herbs displayed two distinct pathways of action for scavenging of ROS.

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