[Comparison of antioxidant activity between two species of chamomiles produced in Xinjiang by TLC-bioautography].

Objective: To compare the antioxidant active components from two species of chamomile-matricaria and Roman chamomile produced in Xinjiang.

Method: The TLC-bioautography was used, with 1,1-Diphenyl-2-picrylhydrazyl (DPPH) radical as the experimental model. The peak areas of various antioxidant components were obtained by TLC-scanning for analyzing antioxidant active components contained in volatile oil extracts and flavone extracts from the two species of chamomiles.