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Heat-Dependent Desorption of Proanthocyanidins from Grape-Derived Cell Wall Material under Variable Ethanol Concentrations in Model Wine Systems.
Molecules. 2019 Oct 01; 24(19)M

Abstract

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.

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Authors+Show Affiliations

Beaver JW
Department of Chemistry and Biochemistry, University of Texas at Tyler, 3900 University Blvd, Tyler, TX 75707, USA. jbeaver@uttyler.edu. Department of Viticulture and Enology, University of California, One Shields Avenue, Davis, CA 95616, USA. jbeaver@uttyler.edu.
Miller KV
Department of Viticulture and Enology, University of California, One Shields Avenue, Davis, CA 95616, USA. vonmiller@ucdavis.edu.
Medina-Plaza C
Department of Viticulture and Enology, University of California, One Shields Avenue, Davis, CA 95616, USA. cmedinaplaza@ucdavis.edu.
Dokoozlian N
E&J Gallo Winery, 600 Yosemite Blvd, Modesto, CA 95354, USA. nick.dokoozlian@ejgallo.com.
Ponangi R
E&J Gallo Winery, 600 Yosemite Blvd, Modesto, CA 95354, USA. ravi.ponangi@ejgallo.com.
Blair T
E&J Gallo Winery, 600 Yosemite Blvd, Modesto, CA 95354, USA. tom.blair@ejgallo.com.
Block D
Department of Viticulture and Enology, University of California, One Shields Avenue, Davis, CA 95616, USA. deblock@ucdavis.edu.
Oberholster A
Department of Viticulture and Enology, University of California, One Shields Avenue, Davis, CA 95616, USA. aoberholster@ucdavis.edu.

MeSH

Cell WallEthanolHot TemperatureMolecular WeightProanthocyanidinsVitisWine

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31581447

Citation

Beaver, Jordan W., et al. "Heat-Dependent Desorption of Proanthocyanidins From Grape-Derived Cell Wall Material Under Variable Ethanol Concentrations in Model Wine Systems." Molecules (Basel, Switzerland), vol. 24, no. 19, 2019.
Beaver JW, Miller KV, Medina-Plaza C, et al. Heat-Dependent Desorption of Proanthocyanidins from Grape-Derived Cell Wall Material under Variable Ethanol Concentrations in Model Wine Systems. Molecules. 2019;24(19).
Beaver, J. W., Miller, K. V., Medina-Plaza, C., Dokoozlian, N., Ponangi, R., Blair, T., Block, D., & Oberholster, A. (2019). Heat-Dependent Desorption of Proanthocyanidins from Grape-Derived Cell Wall Material under Variable Ethanol Concentrations in Model Wine Systems. Molecules (Basel, Switzerland), 24(19). https://doi.org/10.3390/molecules24193561
Beaver JW, et al. Heat-Dependent Desorption of Proanthocyanidins From Grape-Derived Cell Wall Material Under Variable Ethanol Concentrations in Model Wine Systems. Molecules. 2019 Oct 1;24(19) PubMed PMID: 31581447.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Heat-Dependent Desorption of Proanthocyanidins from Grape-Derived Cell Wall Material under Variable Ethanol Concentrations in Model Wine Systems. AU - Beaver,Jordan W, AU - Miller,Konrad V, AU - Medina-Plaza,Cristina, AU - Dokoozlian,Nicolas, AU - Ponangi,Ravi, AU - Blair,Thomas, AU - Block,David, AU - Oberholster,Anita, Y1 - 2019/10/01/ PY - 2019/08/22/received PY - 2019/09/25/revised PY - 2019/09/30/accepted PY - 2019/10/5/entrez PY - 2019/10/5/pubmed PY - 2020/2/12/medline KW - cell wall material KW - desorption KW - ethanol KW - fermentation KW - grape KW - modeling KW - proanthocyanidins KW - temperature KW - wine JF - Molecules (Basel, Switzerland) JO - Molecules VL - 24 IS - 19 N2 - 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. SN - 1420-3049 UR - https://www.unboundmedicine.com/medline/citation/31581447/Heat_Dependent_Desorption_of_Proanthocyanidins_from_Grape_Derived_Cell_Wall_Material_under_Variable_Ethanol_Concentrations_in_Model_Wine_Systems_ DB - PRIME DP - Unbound Medicine ER -