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Condensed tannins (CTS) have been isolated and purified from leaves of Acanthus ilicifolius Linn. And their structures were investigated by three methods: 13C nuclear magnetic resonance (13C NMR), reversed-phase high-performance liquid chromatography (RP-HPLC), and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS). The results showed that the CTS were a mixture...
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