Defatted cinnamon fruit powder was successively extracted with benzene ethyl acetate, acetone,MeOH, and water. The concentrated water extract contained the maximum amount of phenolics andshowed the hi
ghest antioxidant activities. Hence, it was fractionated by Diaion HP-20SS, Diaion HP-20, and Sephadex LH-20 column chromato
graphies. It
gave five purified compounds, the purities ofwhich were analyzed by HPLC. Compounds
1-
5 were identified as 3,4-dihydroxybenzoic acid(protocatechuic acid), epicatechin-(2
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O-7,4
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![](/ima<font color=)
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![](/ima<font color=)
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D-
glucopyranoside (uroli
gnoside), quercetin-3-
O-(6-
O-
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L-rhamnopyranosyl)-
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D-
glucopyranoside(rutin), and quercetin-3-
O-
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L-rhamnopyranoside by usin
g extensive spectral studies. The antioxidantactivities of purified compounds were screened for their antioxidative potential usin
g ![](/ima<font color=)
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gin
g activities. This is the first report of the isolation and identification of nonvolatileconstituents and as well as antioxidant activities from cinnamon fruits.Keywords:
Cinnamomum zeylanicum; fruits; phenolics; protocatechuic acid; cinnamtannin B-1;uroli
gnoside; rutin; quercetin; antioxidant activity