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. 2010 Jan-Feb;72(1):145–148. doi: 10.4103/0250-474X.62233

TABLE 5.

ANTIOXIDANT ACTIVITY OF ALPINIA OFFICINARUM RHIZOME

Name of the Extract IC50 Value of DPPH (μg/ml) Reducing power Total antioxidant activity nM equivalent of ascorbic acid
HA (HM) 95.41±1.10 60.71±0.36 2.868±0.044
HA(CM) 123.43±0.78 59.8±0.05 2.528±0.025
ME(PER) 137.33±1.10 59.70±0.05 2.542±0.116
Ascorbic acid 2.75±0.09 3.50±0.05 -

HA(HM) is hydroalcoholic extract prepared by hot maceration process, HA(CM) is hydroalcoholic extract prepared by cold maceration process and ME(PER) represents methanol extract prepared by percolation process.