DPPH scavenging activity between total
phenolic and reductive potential and due to
the donating ability of hydrogen (Miliauskas,
et al., 2004) Which could serve as free radical
inhibitors Although the DPPH scavenging
activity of the extracts were significantly lower
than those of ascorbic acid but it was evident
that the extract did show the proton-donating
ability and could serve as free radical
inhibitors possibly as primary antioxidants.
The solubility of the extract in different testing
system has been reported to affect the capacity
of extracts to react and entrap different
radicals (Yu et al., 2002).