Disambiguation of Isomeric Procyanidins with Cyclic B-Type and Non-cyclic A-Type Structures from Wine and Peanut Skin with HPLC-HDX-HRMS/MS |
| |
| Authors: | Edoardo Longo Fabrizio Rossetti Vakare Merkyte Emanuele Boselli |
| |
| Affiliation: | 1.Faculty of Science and Technology,Free University of Bozen-Bolzano,Bolzano,Italy;2.Department of Agricultural, Food and Environmental Sciences,Università Politecnica delle Marche,Ancona,Italy |
| |
| Abstract: | Hydrogen/deuterium exchange coupled with high-resolution mass spectrometry was successfully applied for the identification of A-type tetrameric, pentameric, and hexameric procyanidins in peanut skin. This extended a previous study on isomeric cyclic B-type unconventional tetramer, pentamer, and hexamer procyanidins found in wine and cranberries. Not only had the method successfully identified the procyanidins with a single A-linkage (e.g., tetrameric m/z 1153.2608) by means of distinguishing them from their isomeric cyclic B-type analogues, but this method also worked for procyanidins with two or more A-linkages (such as the tetrameric m/z 1151.2452). As a further consequence, B-type cyclic pentamers and hexamers in wine have been elucidated with hydrogen/deuterium exchange (HDX) for the first time. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
