Document Detail

Interactions between grape skin cell wall material and commercial enological tannins. Practical implications.
MedLine Citation:
PMID:  24444975     Owner:  NLM     Status:  In-Data-Review    
Commercial enological tannins were used to investigate the role that cell wall material plays in proanthocyanidin adsorption. Insoluble cell wall material, prepared from the skin of Vitis vinifera L. cv. Monastrell berries, was combined with solutions containing six different commercial enological tannins (proanthocyanidin-type tannins). Analysis of the proanthocyanidins in the solution, after fining with cell wall material, using phloroglucinolysis and size exclusion chromatography, provided quantitative and qualitative information on the non-adsorbed compounds. Cell wall material showed strong affinity for the proanthocyanidins, one of the commercial tannins being bound up to 61% in the experiment. Comparison of the molecular mass distribution of the commercial enological tannins in solution, before and after fining, suggested that cell walls affinity for proanthocyanidins was more related with the proanthocyanidin molecular mass than with their percentage of galloylation. These interactions may have some enological implications, especially as regards the time of commercial tannins addition to the must/wine.
Ana Belén Bautista-Ortín; Mario Cano-Lechuga; Yolanda Ruiz-García; Encarna Gómez-Plaza
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Publication Detail:
Type:  Journal Article     Date:  2013-12-09
Journal Detail:
Title:  Food chemistry     Volume:  152     ISSN:  0308-8146     ISO Abbreviation:  Food Chem     Publication Date:  2014 Jun 
Date Detail:
Created Date:  2014-01-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7702639     Medline TA:  Food Chem     Country:  England    
Other Details:
Languages:  eng     Pagination:  558-65     Citation Subset:  IM    
Copyright Information:
Copyright © 2013 Elsevier Ltd. All rights reserved.
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