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Chemical structures of phenolic antioxidative components of defatted Terminalia chebula R. were elucidated by used MS and H-NMR. The results showed that the phenolic antioxidative components were identified as ferulic acid, vanillic acid, p-coumaric acid in free-acid extracts, and caffecic acid, vanillic acid and p-coumaric acid in soluble-acid extracts, and caffeic acid, phloroglucinol and pyrogallol in insoluble-bound extracts, respectively.
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