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Composition and cellular localization of tannins in Cabernet Sauvignon skins during growth.
J Agric Food Chem. 2006 Dec 13; 54(25):9465-71.JA

Abstract

For two successive years, cell walls were isolated from the internal part of skin cells of Vitis vinifera L. cv. Cabernet Sauvignon grape berries grown in a vineyard. Procyanidin localization and composition were determined over the course of development. Tannins were mainly localized in the inner cell fraction, due to their biosynthesis and storage. Cell wall tannins always exhibited a higher mean degree of polymerization as compared to the internal cell fraction, which had a constant mDP. The mDP of cell wall tannins also tended to increase at the end of maturation. Our results suggest tannin polymerization near the cell wall but an aggregation in the vacuole during growth. The tannin composition was typical of skins, and small differences were noted between the two cell parts. Surprisingly, epigallocatechin-3-gallate was also detected, although in a very small amount. Epicatechin was present in significant proportions in both fractions, especially as an extension subunit, while epigallocatechin was likewise abundant, also as a terminal subunit. Last, procyanidin composition and organization seemed to be characteristic of the Cabernet Sauvignon variety.

Authors+Show Affiliations

Laboratoire de Biochimie et de Physiologie de la Vigne and Laboratoire de Chimie Appliquée, UMR 1219 Oenologie-Ampélologie, Faculté d'Oenologie-Université Victor Segalen, Bordeaux 2/INRA/ENITA, Institut des Sciences de la Vigne et du Vin, Talence, France.No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

17147434

Citation

Gagné, Séverine, et al. "Composition and Cellular Localization of Tannins in Cabernet Sauvignon Skins During Growth." Journal of Agricultural and Food Chemistry, vol. 54, no. 25, 2006, pp. 9465-71.
Gagné S, Saucier C, Gény L. Composition and cellular localization of tannins in Cabernet Sauvignon skins during growth. J Agric Food Chem. 2006;54(25):9465-71.
Gagné, S., Saucier, C., & Gény, L. (2006). Composition and cellular localization of tannins in Cabernet Sauvignon skins during growth. Journal of Agricultural and Food Chemistry, 54(25), 9465-71.
Gagné S, Saucier C, Gény L. Composition and Cellular Localization of Tannins in Cabernet Sauvignon Skins During Growth. J Agric Food Chem. 2006 Dec 13;54(25):9465-71. PubMed PMID: 17147434.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Composition and cellular localization of tannins in Cabernet Sauvignon skins during growth. AU - Gagné,Séverine, AU - Saucier,Cédric, AU - Gény,Laurence, PY - 2006/12/7/pubmed PY - 2007/3/27/medline PY - 2006/12/7/entrez SP - 9465 EP - 71 JF - Journal of agricultural and food chemistry JO - J Agric Food Chem VL - 54 IS - 25 N2 - For two successive years, cell walls were isolated from the internal part of skin cells of Vitis vinifera L. cv. Cabernet Sauvignon grape berries grown in a vineyard. Procyanidin localization and composition were determined over the course of development. Tannins were mainly localized in the inner cell fraction, due to their biosynthesis and storage. Cell wall tannins always exhibited a higher mean degree of polymerization as compared to the internal cell fraction, which had a constant mDP. The mDP of cell wall tannins also tended to increase at the end of maturation. Our results suggest tannin polymerization near the cell wall but an aggregation in the vacuole during growth. The tannin composition was typical of skins, and small differences were noted between the two cell parts. Surprisingly, epigallocatechin-3-gallate was also detected, although in a very small amount. Epicatechin was present in significant proportions in both fractions, especially as an extension subunit, while epigallocatechin was likewise abundant, also as a terminal subunit. Last, procyanidin composition and organization seemed to be characteristic of the Cabernet Sauvignon variety. SN - 0021-8561 UR - https://www.unboundmedicine.com/medline/citation/17147434/Composition_and_cellular_localization_of_tannins_in_Cabernet_Sauvignon_skins_during_growth_ L2 - https://doi.org/10.1021/jf061946g DB - PRIME DP - Unbound Medicine ER -