2026-04-13T13:10:14Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/982502025-12-04T19:36:57Zcom_2072_1057col_2072_478813col_2072_478917

00925njm 22002777a 4500 dc Navarro Reig, Meritxell author Núñez Burcio, Oscar author Saurina, Javier author Hernández Cassou, Santiago author Puignou i Garcia, Lluís author 2016-05-04T09:46:32Z 2016-05-04T09:46:32Z 2014-01-16 2016-05-04T09:46:37Z Capillary zone electrophoresis (CZE) and high performance liquid chromatography (HPLC) were applied to the authentication of fruit products based on the compositional profiles of polyphenols. Various sample treatments were used to maximize the overall recovery of polyphenols or specific fractions, such as phenolic acids or anthocyanins. The resulting CZE and HPLC data were treated with Principal Component Analysis (PCA) showing that samples were mainly clustered according to the fruit of origin, with cranberry- and grape-based products clearly separated in groups. A possible adulterated cranberry extract was analyzed more deeply by high resolution mass spectrometry (HRMS) in order to identify the presence of A-type proanthocyanidins, which are characteristic and more abundant in cranberry-based products. In accordance with PCA interpretation, HRMS results indicated that the suspicious sample was not a cranberry-based product, allowing us to validate and demonstrate the suitability of both CZE- and HPLC-proposed methods for the characterization of fruit-based products. Polifenols Electroforesi capil·lar Cromatografia de líquids Polyphenols Capillary electrophoresis Liquid chromatography Characterization of fruit products by capillary zone electrophoresis and liquid chromatography using the compositional profiles of polyphenols. Application to authentication of natural extracts