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. 2021 Feb 20;13(2):679. doi: 10.3390/nu13020679

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Overlapped extract ion chromatograms (EIC) of (A) non-anthocyanin wine lees (WL)-phenolic compounds analyzed by UHPLC-(ESI-)-Q-TOF-MS and (B) anthocyanin WL-phenolic compounds analyzed by UHPLC-(ESI + )-Q-TOF-MS. Chromatographic peaks are numbered according to Table 3 and Table 4.