Phenolic Profile of Grape Canes: Novel Compounds Identified by LC-ESI-LTQ-Orbitrap-MS
In: Dipòsit Digital de la UB Universidad de Barcelona Molecules, Jg. 24 (2019-10-18), Heft 20, p 3763
Online
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Zugriff:
Grape canes (Vitis vinifera L.) are a viticulture industry by-product with an important content of secondary metabolites, mainly polyphenols with a broad spectrum of demonstrated health benefits. Grape canes, therefore, have considerable economic potential as a source of high-value phytochemicals. In this work, liquid chromatography coupled with electrospray ionization hybrid linear trap quadrupole-Orbitrap mass spectrometry (LC&ndash
LTQ-Orbitrap) was used for the comprehensive identification of polyphenolic compounds in grape canes. Identification of polyphenols was performed by comparing their retention times, accurate mass measured, and mass fragmentation patterns with those of reference substances or available data in the literature. A total of 75 compounds were identified, including phenolic acids, flavanols, flavonols, flavanonols, flavanones, and stilbenoids. The most abundant polyphenols were proanthocyanidins and stilbenoids and their oligomers. Moreover, the high-resolution mass spectrometry analysis revealed the occurrence of 17 polyphenols never described before in grape canes, thereby providing a more complete polyphenolic profile of this potentially valuable by-product.
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Phenolic Profile of Grape Canes: Novel Compounds Identified by LC-ESI-LTQ-Orbitrap-MS
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Autor/in / Beteiligte Person: | Escobar Avello, Danilo ; Lozano-Castellón, Julián ; Mardones, Claudia ; Pérez, Andy J. ; Saéz, Vania ; Riquelme, Sebastián ; Baer, Dietrich von ; Vallverdú i Queralt, Anna |
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Zeitschrift: | Dipòsit Digital de la UB Universidad de Barcelona Molecules, Jg. 24 (2019-10-18), Heft 20, p 3763 |
Veröffentlichung: | MDPI, 2019 |
Medientyp: | unknown |
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