The ethyl acetate fraction contained most of phenolics
presented in emblica fruit. Six phenolic compounds were
purified by reverse-phase HPLC and identified as geraniin
(1), quercetin 3-b-D-glucopyranoside (2), kaempferol 3-b-
D-glucopyranoside (3), isocorilagin (4), quercetin (5) and
kaempferol (6), respectively, by analyses of UV–Vis spectrophotometry,
MS and NMR spectroscopy, and comparison
with the literatures. In addition, most of the purified
compounds showed strong antioxidant and radical scavenging
activities. Thus, the antioxidant activity of emblica
fruit may be one of the mechanisms by which these compounds
are used as foodstuff as well as traditional
medicine.
The ethyl acetate fraction contained most of phenolicspresented in emblica fruit. Six phenolic compounds werepurified by reverse-phase HPLC and identified as geraniin(1), quercetin 3-b-D-glucopyranoside (2), kaempferol 3-b-D-glucopyranoside (3), isocorilagin (4), quercetin (5) andkaempferol (6), respectively, by analyses of UV–Vis spectrophotometry,MS and NMR spectroscopy, and comparisonwith the literatures. In addition, most of the purifiedcompounds showed strong antioxidant and radical scavengingactivities. Thus, the antioxidant activity of emblicafruit may be one of the mechanisms by which these compoundsare used as foodstuff as well as traditionalmedicine.
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