t G. montanum leaves exhibited significant antioxidant
activities measured by various in vitro model systems. The HIT-T15 cell line studies showed the tendency
of GLEt to increase antioxidant levels meanwhile decrease the free radical formation and inhibit the lipid
peroxidation. The antioxidant activity was found to be well correlated with the phenolic phytochemicals
present in the extract. GC–MS analyses revealed the presence of few phenolic compounds in the extract.
As this plant has already been demonstrated for a variety of medicinal properties from our laboratory,
results of this study suggest that G. montanum is an interesting source for antioxidant compounds and
useful for various therapeutic applications.