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Tannin Content in Vitis Species Red Wines Quantified Using Three Analytical Methods.
Molecules. 2021 Aug 14; 26(16)M

Abstract

Tannin content in red wines is positively correlated with astringency perception and wine grade; however, tannin quantification is one of the main challenges. In this study, tannin content was quantified using three analytical methods in commercial red wines from Vitis vinifera and interspecific cold-hardy hybrids including Marquette, Frontenac, and Petite pearl cultivars. Protein (PP) and methylcellulose precipitation (MCP) methods were compared to a HPLC-DAD method, which is based on the interaction between tannins and a hydrophobic surface (RPC). Frontenac wines were the poorest in tannins and Cabernet sauvignon wines were the richest regardless of the method used. In cold-hardy red wines, the tannin content was higher in Marquette with high alcohol content, which suggested that the tannins were extracted from seeds rather than skins. The high limit of quantification of the PP method and the presence of anthocyanin di-glucosides in cold-hardy wines were parameters suggesting that protein and methylcellulose precipitation methods were neither suitable nor reliable for the quantification of tannins in cold-hardy red wines. The tannin content quantified by RPC was positively correlated to tannin quantified by MCP, suggesting that the RPC method would be relevant for the quantification of tannins in red wines.

Authors+Show Affiliations

Department of Food Science and Human Nutrition, Iowa State University, 536 Farm House Lane, Ames, IA 50011-1054, USA.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

34443511

Citation

Watrelot, Aude A.. "Tannin Content in Vitis Species Red Wines Quantified Using Three Analytical Methods." Molecules (Basel, Switzerland), vol. 26, no. 16, 2021.
Watrelot AA. Tannin Content in Vitis Species Red Wines Quantified Using Three Analytical Methods. Molecules. 2021;26(16).
Watrelot, A. A. (2021). Tannin Content in Vitis Species Red Wines Quantified Using Three Analytical Methods. Molecules (Basel, Switzerland), 26(16). https://doi.org/10.3390/molecules26164923
Watrelot AA. Tannin Content in Vitis Species Red Wines Quantified Using Three Analytical Methods. Molecules. 2021 Aug 14;26(16) PubMed PMID: 34443511.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Tannin Content in Vitis Species Red Wines Quantified Using Three Analytical Methods. A1 - Watrelot,Aude A, Y1 - 2021/08/14/ PY - 2021/06/25/received PY - 2021/08/04/revised PY - 2021/08/10/accepted PY - 2021/8/27/entrez PY - 2021/8/28/pubmed PY - 2021/9/25/medline KW - HPLC-PLRP KW - interspecific hybrid grapes KW - methylcellulose precipitation KW - proanthocyanidins KW - protein precipitation JF - Molecules (Basel, Switzerland) JO - Molecules VL - 26 IS - 16 N2 - Tannin content in red wines is positively correlated with astringency perception and wine grade; however, tannin quantification is one of the main challenges. In this study, tannin content was quantified using three analytical methods in commercial red wines from Vitis vinifera and interspecific cold-hardy hybrids including Marquette, Frontenac, and Petite pearl cultivars. Protein (PP) and methylcellulose precipitation (MCP) methods were compared to a HPLC-DAD method, which is based on the interaction between tannins and a hydrophobic surface (RPC). Frontenac wines were the poorest in tannins and Cabernet sauvignon wines were the richest regardless of the method used. In cold-hardy red wines, the tannin content was higher in Marquette with high alcohol content, which suggested that the tannins were extracted from seeds rather than skins. The high limit of quantification of the PP method and the presence of anthocyanin di-glucosides in cold-hardy wines were parameters suggesting that protein and methylcellulose precipitation methods were neither suitable nor reliable for the quantification of tannins in cold-hardy red wines. The tannin content quantified by RPC was positively correlated to tannin quantified by MCP, suggesting that the RPC method would be relevant for the quantification of tannins in red wines. SN - 1420-3049 UR - https://www.unboundmedicine.com/medline/citation/34443511/Tannin_Content_in_Vitis_Species_Red_Wines_Quantified_Using_Three_Analytical_Methods_ L2 - https://www.mdpi.com/resolver?pii=molecules26164923 DB - PRIME DP - Unbound Medicine ER -