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2019-10-18

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cc-by (c) Escobar Avello, Danilo et al., 2019
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/157717

Phenolic Profile of Grape Canes: Novel Compounds Identified by LC-ESI-LTQ-Orbitrap-MS

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Recurs relacionat

https://doi.org/10.3390/molecules24203763

Resum

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-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.

Matèries

Vinicultura, Polifenols, Salut, Fitoquímica, Cromatografia de líquids d'alta resolució, Ions

Matèries (anglès)

Wine industry, Polyphenols, Health, Botanical chemistry, High performance liquid chromatography, Ions

Citació

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Articles publicats en revistes (Nutrició, Ciències de l'Alimentació i Gastronomia)

Citació

ESCOBAR AVELLO, Danilo, LOZANO-CASTELLÓN, Julián, MARDONES, Claudia, PÉREZ, Andy j., SAÉZ, Vania, RIQUELME, Sebastián, BAER, Dietrich von, VALLVERDÚ I QUERALT, Anna. Phenolic Profile of Grape Canes: Novel Compounds Identified by LC-ESI-LTQ-Orbitrap-MS. _Molecules_. 2019. Vol. 24, núm. 20, pàgs. 3763. [consulta: 25 de febrer de 2026]. ISSN: 1420-3049. [Disponible a: https://hdl.handle.net/2445/157717]

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