title: UPLC and HPLC of caffeoyl esters in wild and cultivated Arctium lappa L.
abstract: Analytical methods including ultra-performance liquid chromatography (UPLC) and high-performance liquid chromatography (HPLC) with photodiode array (PDA) detector were developed for the analysis of caffeoylquinic acid derivatives in seeds, leaves and roots of Arctium lappa L. Separation was performed on C(18) column utilising 5% (v/v) acetic acid in water and acetonitrile at 330 nm. Both methodologies were validated in terms of linearity, precision, and recovery. The results showed that the major advantages of UPLC, over HPLC were the fast analysis, narrow peaks, high sensitivity, and reduction of solvent consumption. Subsequently the methods were applied for the identification and quantification of chlorogenic acid (5-CQA) and 1,5-dicaffeoylquinic acid (1,5-DCQA) as main compounds in samples. The total phenolic content of samples ranged from 3.93 to 14.13 g of 5-CQA equivalent/100g dry weight (DW). There was a significant variability from 89 to 571 mg/100g for 5-CQA and 48 to 486 mg/100g for 1,5-DCQA in dry material.
authors.affiliation: Phytochemistry Group, Jundi Shapour Medicinal Plants Research Center, 87135-1178 Kashan, Iran. g.haghikashani@gmail.com
authors.forename: Ghasem
authors.initials: G
authors.lastname: Haghi
authors.forename: Alireza
authors.initials: A
authors.lastname: Hatami
authors.forename: Mehdi
authors.initials: M
authors.lastname: Mehran
mesh_terms: D031170:Arctium / Q000737:chemistry* / Q000254:growth & development; D002109:Caffeic Acids / Q000032:analysis*; D002851:Chromatography, High Pressure Liquid; D004952:Esters / Q000032:analysis*; D010936:Plant Extracts / Q000032:analysis*; D018515:Plant Leaves / Q000737:chemistry; D018517:Plant Roots / Q000737:chemistry; D012639:Seeds / Q000737:chemistry
chemical_list: D002109:Caffeic Acids; D004952:Esters; D010936:Plant Extracts