2026-04-13T02:19:16Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/1774232025-12-04T19:38:44Zcom_2072_1057col_2072_478813col_2072_478917

00925njm 22002777a 4500 dc Vidal Casanella, Oscar author Núñez Burcio, Oscar author Saurina, Javier author 2021-05-19T12:42:05Z 2021-05-19T12:42:05Z 2021-05-06 2021-05-19T12:42:05Z Flavanols consist of a great family of bioactive molecules displaying a wide range of health-promoting attributes for humans, including antioxidant, antimicrobial or an-ti-inflammatory effects. As a result, botanical species rich in this type of compounds are often used to develop nutraceutical products or dietary supplements with recognized healthy attrib-utes. This paper aims at characterizing nutraceutical products using liquid chromatographic fin-gerprints related to flavanol composition. Catechins and their oligomers were exploited to characterize and authenticate of various commercial products prepared with extracts of red ber-ries and medicinal plants. These compounds resulted in interesting descriptors of some fruits and vegetables, thus providing an additional perspective for the study of nutraceuticals. For such a purpose, a new method based on liquid chromatography with UV/Vis detection (HPLC-UV/Vis) with precolumn derivatization with 4-dimethylaminocinnamaldehyde was de-veloped. Results indicated that the separation of flavanols was very complex due to the degrada-tion of procyanidin derivatives. The resulting data sets were analyzed using chemometric methods such as principal component analysis and partial least square-discriminant analysis. Despite the complexity of chromatographic fingerprints, nutraceutical samples could be dis-criminated according to their main ingredients. In general, catechin and epicatechin were the most abundant compounds in the different samples and procyanidin A2 was highly specific of cranberry. Flavonoides Plantes medicinals Aliments funcionals Flavonoids Medicinal plants Functional foods Liquid chromatographic fingerprints for the characterization of flavanol-rich nutraceuticals based on 4-dimethylaminocinnamaldehyde precolumn derivatization