The total phenolic content of the extracts from leaves of A.
graveolens was determined by Folin-Coicalteu method
and the results are expressed as equivalents of gallic
acid (Table 1). Among the four extracts, methanol extract
had the highest (51.09 mg/g) amount of phenolic
compounds followed by water (46.40 mg/g), ethyl acetate
(22.70 mg/g) and butanol extract (19.43 mg/g). The result
of the total flavonoid contents of the extracts from A.
graveolens leaves is presented in Table 1. The total
flavonoid content varied from 0.77 to 4.80 mg quercetin/g
weight. The levels of total phenolics determined in this
way are not absolute measurements of the amounts of
phenolic compounds, but are in fact based on their
chemical reducing capacity relative to gallic acid. It has
been observed that the phenol antioxidant index, a
combined measure of the quality and quantity of
antioxidants in vegetables (Elliot, 1999). The phenolic
compounds are the dominant antioxidants that exhibit
scavenging efficiency on free radicals and reactive
oxygen species are numerous and widely distributed in
the plant kingdom (Prior and Cao, 2000).