Isolation and identification of a phenolic antioxidant from Aloe barbadensis |
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Authors: | Lee K Y Weintraub S T Yu B P |
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Affiliation: | Department of Food and Nutrition, Ho Seo University, Asan, Chungmam, Korea. |
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Abstract: | A potent antioxidative compound has been isolated from a methanolic extract of Aloe barbadensis Miller using a combination of column and thin-layer chromatography. The antioxidant activity of this substance was similar to that of alpha-tocopherol as assessed in vitro using rat brain homogenates. On the basis of electrospray ionization and electron-impact ionization mass spectra in combination with reversed-phase, high-performance liquid chromatographic behavior, this compound has been identified as 8-C-beta-D-[2-O-(E)-coumaroyl]glucopyranosyl-2-[2-hydroxy]-propyl-7-methoxy-5-methylchromone. |
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