Figure 1.

Antioxidant effect of Orthosiphon stamineus extracts. The left Y and top X showed the DPPH radical inhibition ratio by the ORE, OSE, and OLE in different concentrations

Antioxidant effect of Orthosiphon stamineus extracts. The left Y and top X showed the DPPH radical inhibition ratio by the ORE, OSE, and OLE in different concentrations