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RP-HPLC chromatograms of hydroxycinnamates from hydroalcoholic extracts of Cichorium intybus (detection wavelength = 325 nm): a callus tissue, b hairy roots, c roots of the intact plant, d leaves of the intact plant. CTA caftaric acid, 5-CQA chlorogenic acid, DCTA cichoric acid, 3,5-DCQA 3,5-dicaffeoylquinic acid, 4,5-DCQA 4,5-dicaffeoylquinic acid
