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. 2018 Oct 11;23(10):2598. doi: 10.3390/molecules23102598

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© 2018 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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Chromatograms under 220 nm of the standard compounds (A); Black Grape (Yunnan, China) peel (B); Pearl Black Grape (Xinjiang, China) seed (C).The numbers in brackets refer to the compounds: gallic acid (1); protocatechuic acid (2); gallo catechin (3); chlorogenic acid (4); cyanidin-3-glucoside (5); caffeic acid (6); epicatechin (7); catechin gallate (8); p-coumaric acid (9); ferulaic acid (10); melatonin (11); 2-hydroxycinnamic acid (12); rutin (13); resveratrol (14); daidzein (15); equol (16); quercetin (17); genistein (18).