Cargando…
Heat-Dependent Desorption of Proanthocyanidins from Grape-Derived Cell Wall Material under Variable Ethanol Concentrations in Model Wine Systems
Desorption of proanthocyanidins (PA) from grape cell wall material (CWM) was investigated in solutions of varying ethanol concentrations and increasing temperature. The results reveal the reversibility of PA-CWM interactions and the role that temperature and ethanol concentration play in the extent...
Autores principales: | , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6804194/ https://www.ncbi.nlm.nih.gov/pubmed/31581447 http://dx.doi.org/10.3390/molecules24193561 |
_version_ | 1783461127836925952 |
---|---|
author | Beaver, Jordan W. Miller, Konrad V. Medina-Plaza, Cristina Dokoozlian, Nicolas Ponangi, Ravi Blair, Thomas Block, David Oberholster, Anita |
author_facet | Beaver, Jordan W. Miller, Konrad V. Medina-Plaza, Cristina Dokoozlian, Nicolas Ponangi, Ravi Blair, Thomas Block, David Oberholster, Anita |
author_sort | Beaver, Jordan W. |
collection | PubMed |
description | Desorption of proanthocyanidins (PA) from grape cell wall material (CWM) was investigated in solutions of varying ethanol concentrations and increasing temperature. The results reveal the reversibility of PA-CWM interactions and the role that temperature and ethanol concentration play in the extent of PA desorption. Sequentially raising temperature from 15 to 35 °C resulted in desorption of up to 48% of the initial adsorbed PA. A comparison to a phenolic extraction model showed significant differences between the predicted and actual amount of PA that desorbed from the CWM. This suggests that the initial conditions of temperature and ethanol concentration must be considered when estimating PA extraction in red wine production. Under typical winemaking conditions, a significant amount of PA may be irreversibly adsorbed if exposed to CWM at low temperature (i.e., cold soak). A compositional analysis suggests the selective desorption of large molecular weight PA from CWM under all experimental conditions. Additionally, a preferential desorption of skin-derived PA over seed-derived PA was noted in the absence of ethanol. |
format | Online Article Text |
id | pubmed-6804194 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-68041942019-11-18 Heat-Dependent Desorption of Proanthocyanidins from Grape-Derived Cell Wall Material under Variable Ethanol Concentrations in Model Wine Systems Beaver, Jordan W. Miller, Konrad V. Medina-Plaza, Cristina Dokoozlian, Nicolas Ponangi, Ravi Blair, Thomas Block, David Oberholster, Anita Molecules Communication Desorption of proanthocyanidins (PA) from grape cell wall material (CWM) was investigated in solutions of varying ethanol concentrations and increasing temperature. The results reveal the reversibility of PA-CWM interactions and the role that temperature and ethanol concentration play in the extent of PA desorption. Sequentially raising temperature from 15 to 35 °C resulted in desorption of up to 48% of the initial adsorbed PA. A comparison to a phenolic extraction model showed significant differences between the predicted and actual amount of PA that desorbed from the CWM. This suggests that the initial conditions of temperature and ethanol concentration must be considered when estimating PA extraction in red wine production. Under typical winemaking conditions, a significant amount of PA may be irreversibly adsorbed if exposed to CWM at low temperature (i.e., cold soak). A compositional analysis suggests the selective desorption of large molecular weight PA from CWM under all experimental conditions. Additionally, a preferential desorption of skin-derived PA over seed-derived PA was noted in the absence of ethanol. MDPI 2019-10-01 /pmc/articles/PMC6804194/ /pubmed/31581447 http://dx.doi.org/10.3390/molecules24193561 Text en © 2019 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/). |
spellingShingle | Communication Beaver, Jordan W. Miller, Konrad V. Medina-Plaza, Cristina Dokoozlian, Nicolas Ponangi, Ravi Blair, Thomas Block, David Oberholster, Anita Heat-Dependent Desorption of Proanthocyanidins from Grape-Derived Cell Wall Material under Variable Ethanol Concentrations in Model Wine Systems |
title | Heat-Dependent Desorption of Proanthocyanidins from Grape-Derived Cell Wall Material under Variable Ethanol Concentrations in Model Wine Systems |
title_full | Heat-Dependent Desorption of Proanthocyanidins from Grape-Derived Cell Wall Material under Variable Ethanol Concentrations in Model Wine Systems |
title_fullStr | Heat-Dependent Desorption of Proanthocyanidins from Grape-Derived Cell Wall Material under Variable Ethanol Concentrations in Model Wine Systems |
title_full_unstemmed | Heat-Dependent Desorption of Proanthocyanidins from Grape-Derived Cell Wall Material under Variable Ethanol Concentrations in Model Wine Systems |
title_short | Heat-Dependent Desorption of Proanthocyanidins from Grape-Derived Cell Wall Material under Variable Ethanol Concentrations in Model Wine Systems |
title_sort | heat-dependent desorption of proanthocyanidins from grape-derived cell wall material under variable ethanol concentrations in model wine systems |
topic | Communication |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6804194/ https://www.ncbi.nlm.nih.gov/pubmed/31581447 http://dx.doi.org/10.3390/molecules24193561 |
work_keys_str_mv | AT beaverjordanw heatdependentdesorptionofproanthocyanidinsfromgrapederivedcellwallmaterialundervariableethanolconcentrationsinmodelwinesystems AT millerkonradv heatdependentdesorptionofproanthocyanidinsfromgrapederivedcellwallmaterialundervariableethanolconcentrationsinmodelwinesystems AT medinaplazacristina heatdependentdesorptionofproanthocyanidinsfromgrapederivedcellwallmaterialundervariableethanolconcentrationsinmodelwinesystems AT dokoozliannicolas heatdependentdesorptionofproanthocyanidinsfromgrapederivedcellwallmaterialundervariableethanolconcentrationsinmodelwinesystems AT ponangiravi heatdependentdesorptionofproanthocyanidinsfromgrapederivedcellwallmaterialundervariableethanolconcentrationsinmodelwinesystems AT blairthomas heatdependentdesorptionofproanthocyanidinsfromgrapederivedcellwallmaterialundervariableethanolconcentrationsinmodelwinesystems AT blockdavid heatdependentdesorptionofproanthocyanidinsfromgrapederivedcellwallmaterialundervariableethanolconcentrationsinmodelwinesystems AT oberholsteranita heatdependentdesorptionofproanthocyanidinsfromgrapederivedcellwallmaterialundervariableethanolconcentrationsinmodelwinesystems |