The TAA of the extract was calculated based on the formation
of the phosphomolybdenum complex. This activity was
measured spectrophotometrically at 695 nm [15] and
expressed as equivalents of ascorbic acid. Fig. 1 shows the
TAA of extracts in a concentration-dependent manner. The
extract of 100% ethanol gave the highest TAA, followed by the
extracts of 100% acetone, 100% methanol, 75% aqueous
acetone, 75% aqueous methanol, 50% aqueous acetone, 50%
aqueous ethanol, and 50% aqueous methanol. The TAA of the
water extract is the lowest and is significantly different from
that of the others (p < 0.05). The TAA of the 100% ethanol
extract is higher than that of the 100% acetone extract. However,
both extracts show significantly higher TAA than that of
the other extracts (p < 0.05). By contrast, TAAs of the other
extracts do not show significant difference from each other.
The TAA of the extract was calculated based on the formation
of the phosphomolybdenum complex. This activity was
measured spectrophotometrically at 695 nm [15] and
expressed as equivalents of ascorbic acid. Fig. 1 shows the
TAA of extracts in a concentration-dependent manner. The
extract of 100% ethanol gave the highest TAA, followed by the
extracts of 100% acetone, 100% methanol, 75% aqueous
acetone, 75% aqueous methanol, 50% aqueous acetone, 50%
aqueous ethanol, and 50% aqueous methanol. The TAA of the
water extract is the lowest and is significantly different from
that of the others (p < 0.05). The TAA of the 100% ethanol
extract is higher than that of the 100% acetone extract. However,
both extracts show significantly higher TAA than that of
the other extracts (p < 0.05). By contrast, TAAs of the other
extracts do not show significant difference from each other.
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