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Selected Publication:

Schoedl, K; Schuhmacher, R; Forneck, A.
(2012): Studying the polyphenols of grapevine leaves according to age and insertion level under controlled conditions
SCI HORTIC-AMSTERDAM. 2012; 141: 37-41. FullText FullText_BOKU

Grapevine (Vitis vinifera L) leaf samples of three defined age groups were investigated for concentration of selected sixteen polyphenols implementing the developmental stage of leaves. All in all, twelve polyphenols were detected above the limit of quantification with caftaric acid showing the highest concentrations. By studying differences in concentrations levels of individual polyphenols between the leavesxxx position on the shoot (insertion levels) trans- and cis-resveratrol-3-O-glucoside, (+)-catechin, caftaric acid, quercetin-3-O-glucoside and quercetin-3-O-glucuronide were identified as key markers with different concentrations on at least three of four sampling dates and analysed by LC-MS/MS. For future applications, the detected temporal polyphenolic pattern needs to be validated using additional cultivars of grapevine to establish a xxxpolyphenolic fingerprintxxx of grapevine leaves of different insertion levels. (C) 2012 Elsevier B.V. All rights reserved.
Authors BOKU Wien:
Forneck Astrid
Schödl-Hummel Katharina
Schuhmacher Rainer

Find related publications in this database (Keywords)
Vitis vinifera
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