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. 2013 Mar 19;3(1):185–203. doi: 10.3390/metabo3010185

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© 2013 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 license (http://creativecommons.org/licenses/by/3.0/).

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HPLC profiling of flavan-3-ols and TLC analysis of proanthocyanidins in leaves of Vitis bellula. (a). A HPLC profile shows (±)-catechin (CA), (-)-epicatechin (EP), (−)-gallocatechin (GC) and (−)-epigallocatechin (EGC) in crude extracts of leaves (stage 3); (b). A TLC image shows anthocyanidin profiles released from the butanol: HCl boiling of crude extracts of proanthocyanidins from leaves (stage 3), authentic standards including: cyanidin (Cy), pelargonidin (Pel) and delphinidin (Del); (c). A HPLC profile shows anthocyanidins released from the butanol: HCl boiling of crude extracts of proanthocyanidins from leaves (stage 3), authentic standards including: cyanidin (Cy), pelargonidin (Pel) and delphinidin (Del).