Skip to main content

Advertisement

Table 4 The correlation analysis of total antioxidant capacities and main active ingredients of water extracts prepared from 20 polyherbal medicines used as rejuvenators

From: Antioxidant capacities and total phenolic contents of 20 polyherbal remedies used as tonics by folk healers in Phatthalung and Songkhla provinces, Thailand

  Pearson’s correlation (p value)
  ABTSa FRAPa MCAa TPCb TFCb
DPPHa 0.959 (0.000) 0.884 (0.000) −0.690 (0.001) 0.882 (0.000) 0.592 (0.006)
ABTS   0.897(0.000) −0.711 (0.000) 0.939 (0.000) 0.695 (0.001)
FRAP    −0.734 (0.000) 0.895 (0.000) 0.699 (0.001)
MCA     −0.751 (0.000) −0.449(0.047)
TPC      0.682 (0.001)
  1. aAntioxidant capacities of the extracts were expressed in terms of their inhibitory activity against ABTS• + and DPPH radicals (% inhibition at 1.2 mg/mL), ferric reducing antioxidant power (FRAP; μM Fe2SO4/mg extract), and ferrous ions metal chelating activity (MCA; % chelating activity at 3.5 mg/mL)
  2. bTotal phenolic content (TPC) and total flavonoid content (TFC) expressed as mg of gallic acid equivalent per g extract and mg catechin equivalent per g extract, respectively