Oenological tannins: A review

Australian Journal of Grape and Wine Research

Volumn 19, Issue 1, 2013, Pages 1-10

  Versari, A ^a   Du Toit, W ^b   Parpinello, G P ^a  

^a UNIVERSITY OF BOLOGNA   (Italy)

^b STELLENBOSCH UNIVERSITY   (South Africa)

Author keywords

Colour stability; Red wine; Tannin

Indexed keywords

VITACEAE;

EID: 84872895291     PISSN: 13227130     EISSN: 17550238     Source Type: Journal    
DOI: 10.1111/ajgw.12002     Document Type: Review

References (134)

1. Adams, D.O. and Harbertson, J.F. (1999) Use of alkaline phosphatase for the analysis of tannins in grapes and red wines. American Journal of Enology and Viticulture 50, 247-252.
2. Álvarez, I., Aleixandre, J.L., García, M.J., Lizama, V. and Aleixandre-Tudó, J.L. (2009) Effect of the prefermentative addition of copigments on the polyphenolic composition of Tempranillo wines after malolactic fermentation. European Food Research and Technology 228, 501-510.
3. Álvarez, J.M. (2007) Tanino: la revolucíon enológica mito o realidad. Revista Enología 2, 1-15.
4. Association of Official Agricultural Chemists (1975) Official methods of analysis, 12th edn (AOAC: Washington, DC).
5. Australian Certified Organic Standard (2010) Biological Farmers of Australia Ltd. website. http://www.bfa.com.au/Portals/0/ACO_2010_Standard_full.pdf [accessed 02/11/12].
6. Bate-Smith, E.C. (1954) Leucoanthocyanins. I. Detection and identification of anthocyanin formed from leucoanthocyanins in plant tissues. Biochemistry Journal 58, 122-125.
7. Bautista-Ortín, A.B., Fernández-Fernández, J.I., López-Roca, J.M. and Gómez-Plaza, E. (2007) The effects of enological practices in anthocyanins, phenolic compounds and wine colour and their dependence on grape characteristics. Journal of Food Composition and Analysis 20, 546-552.
8. Bautista-Ortín, A.B., Martínez-Cutillas, A., Ros-García, J.M., López-Roca, J.M. and Gómez-Plaza, E. (2005) Improving colour extraction and stability in red wines: the use of maceration enzymes and enological tannins. International Journal of Food Science and Technology 40, 867-878.
9. Bennick, A. (2002) Interaction of plant polyphenols with salivary proteins. Critical Reviews in Oral Biology and Medicine 13, 184-196.
10. Boulton, R. (2001) The copigmentation of anthocyanins and its role in the color of red wine: a critical review. American Journal of Enology and Viticulture 52, 67-87.
11. Brossaud, F., Cheynier, V. and Noble, A.C. (2001) Bitterness and astringency of grape and wine polyphenols. Australian Journal of Grape and Wine Research 7, 33-39.
12. Butler, L.G., Riedl, D.G., Lebryk, D.G. and Blytt, H.J. (1984) Interaction of proteins with sorghum tannin: mechanism, specificity and significance. Journal of the American Oil Chemists' Society 61, 916-920.
13. Callemien, D. and Collin, S. (2009) Structure, organoleptic properties, quantification methods, and stability of phenolic compounds in beer - a review. Food Reviews International 26, 1-84.
14. Canuti, V., Piccioni, S., Giovani, G., Salmi, M., Rosi, I. and Bertuccioli, M. (2012) Effect of oenotannin addition on the composition of Sangiovese wines from grapes with different characteristics. American Journal of Enology and Viticulture 63, 220-231.
15. Celotti, E., Battistutta, F., Comuzzo, P., Poinsaut, P. and Zironi, R. (1999) Impieghi di tannini enologici commerciali. Vignevini 26, 67-74.
16. Charlton, A.J., Baxter, N.J., Khanm, L., Moir, A.J.G., Haslam, E. and Davies, A.P. (2002) Polyphenol/peptide binding and precipitation. Journal of Agricultural and Food Chemistry 50, 1593-1601.
17. Chassaing, S., Lefeuvre, D., Jacquet, R., Jourdes, M., Ducasse, L., Galland, S., Grelard, A., Saucier, C., Teissedre, P.-L., Dangles, O. and Quideau, S. (2010) Physicochemical studies of new anthocyano-ellagitannin hybrid pigments: about the origin of the influence of oak C-glycosidic ellagitannins on wine color. European Journal of Organic Chemistry 2010, 55-63.
18. Chatonnet, P., Dubourdieu, D. and Boidron, J.N. (1998) Comparative study of the characteristics of American white oak (Quercus alba) and European oak (Quercus petraea and Q. robur) for production of barrels used in barrel aging of wines. American Journal of Enology and Viticulture 49, 79-85.
19. Cheynier, V., Dueñas-Paton, M., Salas, E., Maury, C., Souquet, J.-M., Sarni-Manchado, P. and Fulcrand, H. (2006) Structure and properties of wine pigments and tannins. American Journal of Enology and Viticulture 57, 298-305.
20. Cheynier, V., Labarbe, B. and Moutounet, M. (2001) Estimation of procyanidin chain length. Methods in Enzymology 335, 82-94.
21. Cíchová, M., Petříček, J. and Fiala, J. (2008) Influence of tannin addition on the content and composition of polyphenolic compounds in wines. Czech Journal of Food Sciences 26, S33-S38.
22. Codex Alimentarius Commission (2009) Joint FAO/WHO food standards program Report of the forty-first session of the Codex Committee on Food Additives: Shanghai, China, 16-20 March 2009 (FAO/WHO: Rome).
23. Codex Alimentarius Commission (2010) Joint FAO/WHO food standards program Report of forty-second session of the Codex Committee on food additives: Beijing, China, 15-19 March 2010, Inventory of substances used as processing aids (IPA), updated list(FAO/WHO: Rome).
24. De Beer, D., Harbertson, J.F., Kilmartin, P.A., Roginsky, V., Barsukova, T., Adams, D.O. and Waterhouse, A.L. (2004) Phenolics: a comparison of diverse analytical methods. American Journal of Enology and Viticulture 55, 389-400.
25. Díaz-Plaza, E.M., Ramonä Reyero, J., Pardo, F., Alonso, G.L. and Salinas, M.R. (2002) Influence of oak wood on the aromatic composition and quality of wines with different tannin contents. Journal of Agricultural and Food Chemistry 50, 2622-2626.
26. Du Toit, W.J. (2010) Micro-oxygenation, oak alternatives and added tannins and wine quality. In: Managing wine quality: oenology and wine quality. Vol. 2. Ed. A.G. Reynolds (Woodhead Publishing Limited: Cambridge, UK) pp. 226-254. ISBN 9781845697983.
27. Du Toit, W.J., Marais, J., Pretorius, I.S. and Toit, M. (2006) Oxygen in must and wine: a review. South African Journal of Enology and Viticulture 27, 76-94.
28. Dumeau, F., Murat, M.-L., Marquette, B. and Daviaud, F. (2004) The effect of tannin addition on laccase activity of Botrytis cinerea during fermentation. The Australian & New Zealand Grapegrower & Winemaker 3, 78-85.
29. European Commission (2009) Commission Regulation (EC) No 606/2009 of 10 July 2009 laying down certain detailed rules for implementing Council Regulation (EC) No 479/2008 as regards the categories of grapevine products, oenological practices and the applicable restrictions. Official Journal of the European Union L 193, 24 July 2009, 1-59.
30. European Commission (2012) Commission Implementing Regulation (EU) No 203/2012 of 8 March 2012 amending Regulation (EC) No 889/2008 laying down detailed rules for the implementation of Council Regulation (EC) No 834/2007, as regards detailed rules on organic wine. Official Journal of the European Union L 71, 9 March 2012, 42-47.
31. Fernandez, K. and Agosin, E. (2007) Quantitative analysis of red wine tannins using Fourier-transform mid-infrared spectrometry. Journal of Agricultural and Food Chemistry 55, 7294-7300.
32. Folin, O. and Ciocalteau, V. (1927) On tyrosine and tryptophane determination in protein. The Journal of Biological Chemistry 73, 424-427.
33. Frazier, R.A., Deaville, E.R., Green, R.J., Stringano, E., Willoughby, I., Plant, J. and Mueller-Harvey, I. (2010) Interactions of tea tannins and condensed tannins with proteins. Journal of Pharmaceutical and Biomedical Analysis 51, 490-495.
34. de Freitas, V., Carvalho, E. and Mateus, N. 2003) Study of carbohydrate influence on protein-tannin aggregation by nephelometry. Food Chemistry 81, 503-509.
35. Fulcrand, H., Dueñas, M., Salas, E. and Cheynier, V. (2006) Phenolic reactions during winemaking and aging. American Journal of Enology and Viticulture 57, 289-297.
36. Galpin, V.C. (2006) A comparison of legislation about winemaking: additives and processes. Thesis Cape Wine Master Diploma, Cape Wine academy.
37. Gawel, R. (1998) Red wine astringency: a review. Australian Journal of Grape and Wine Research 4, 73-95.
38. Glabasnia, A. and Hofmann, T. (2006) Sensory-directed identification of taste-active ellagitannins in American (Quercus alba L.) and European oak wood (Quercus robur L.) and quantitative analysis in Bourbon whiskey and oak-matured red wines. Journal of Agricultural and Food Chemistry 54, 3380-3390.
39. Glabasnia, A. and Hofmann, T. (2007) Identification and sensory evaluation of dehydro- and deoxyellagitannins formed upon toasting of oak wood (Quercus alba L.). Journal of Agricultural and Food Chemistry 55, 4109-4118.
40. Guyot, S. (2012) Flavan-3-Ols and Proanthocyanidins. In: Handbook of analysis of active compounds in functional foods. Eds. L.M.L. Nollet and F. Toldrá (CRC Press/Taylor & Francis: Boca Raton, FL) pp. 317-348.
41. Hagerman, A.E. (1989) Chemistry of tannin-protein complexation. In: Chemistry and significance of condensed tannins. Eds. R.W. Hemingway and J.J. Karchesy (Plenum Press: New York, London) pp. 323-333.
42. Hagerman, A.E. (2002) Tannin chemistry. http://www.users.muohio.edu/hagermae/
43. Hagerman, A.E. and Butler, L.G. (1978) Protein precipitation method for the quantitative determination of tannins. Journal of Agricultural and Food Chemistry 26, 809-812.
44. 16 (4→8) catechin (procyanidin). Journal of Agricultural and Food Chemistry 46, 2590-2595.
45. Harbertson, J.F., Kennedy, J.A. and Adams, D.O. (2002) Tannin in skins and seeds of Cabernet Sauvignon, Syrah, and Pinot Noir berries during ripening. American Journal of Enology and Viticulture 53, 54-59.
46. Harbertson, J.F., Parpinello, G.P., Heymann, H. and Downey, M.O. (2012) Impact of exogenous tannin additions on wine chemistry and wine sensory character. Food Chemistry 131, 999-1008.
47. Haslam, E. (1996) Natural polyphenols (vegetable tannins) as drugs: possible modes of action. Journal of Natural Products 59, 205-215.
48. Haslam, E. (1998) Practical polyphenolics - from structure to molecular recognition and physiological action (Cambridge University Press: Cambridge, UK).
49. Haslam, E., Lilley, T.H., Warminski, E., Liao, H., Cai, Y. and Martin, R. (1991) Polyphenol complexation. A study in molecular recognition. In: Phenolic compounds in food and their effects on health. I. Analysis, occurrence and chemistry. Eds. C.-T. Ho, C.Y. Lee and M.-T. Huang (American Chemical Society: Washington, DC) pp. 8-49.
50. Hofmann, T., Glabasnia, A., Schwarz, B., Wisman, K.N., Gangwer, K.A. and Hagerman, A.E. (2006) Protein binding and astringent taste of a polymeric procyanidin, 1, 2, 3, 4, 6-penta-O-galloyl-α-D-glucopyranose, castalagin, and grandinin. Journal of Agricultural and Food Chemistry 54, 9503-9509.
51. Hufnagel, J.C. and Hofmann, T. (2008) Orosensorydirected identification of astringent mouthfeel and bitter-tasting compounds in red wine. Journal of Agricultural and Food Chemistry 56, 1376-1386.
52. Jacquet, G., Matthews, S., Deprez, S., Pollet, B., Mila, I., Lapierre, C. and Scalbert, A. (1997) Thiolysis and thioacidolysis: recent progress in the characterisation of phenolic polymers. Analusis 25, 26-29.
53. Jensen, J.S., Egebo, M. and Meyer, A.S. (2008a) Identification of spectral regions for the quantification of red wine tannins with Fourier-transform mid-infrared spectroscopy. Journal of Agricultural and Food Chemistry 56, 3493-3499.
54. Jensen, J.S., Malmborg Werge, H.H., Egebo, M. and Meyer, S.S. (2008b) Effect of wine dilution on the reliability of tannin analysis by protein precipitation. American Journal of Enology and Viticulture 59, 103-105.
55. Jordão, A.M., Ricardo-da-Silva, J.M. and Laureano, O. (2005) Extraction of some ellagic tannins and ellagic acid from oak wood chips (Quercus pyrenaica L.) in model wine solutions: effect of time, pH, temperature and alcoholic content. South African Journal of Enology and Viticulture 26, 83-89.
56. Jordão, A.M., Ricardo-Da-Silva, J.M. and Laureano, O. (2006) Effect of oak constituents and oxygen on the evolution of Malvidin-3-Glucoside and (+)-catechin in model wine. American Journal of Enology and Viticulture 57, 377-381.
57. Jordão, A.M., Ricardo-Da-Silva, J.M., Laureano, O., Mullen, W. and Crozier, A. (2008) Effect of ellagitannins, ellagic acid and volatile compounds from oak wood on the (+)-catechin, procyanidin B1 and malvidin-3-glucoside content of model wines. Australian Journal of Grape and Wine Research 14, 260-270.
58. Jourdes, M., Pouységu, L., Quideau, L., Mattivi, F., Truchado, P. and Tomás-Barberán, F.A. (2012) Hydrolyzable tannins: gallotannins, ellagitannins, and ellagic acid. In: Handbook of analysis of active compounds in functional foods. Eds. L.M.L. Nollet and F. Toldrá (CRC Press/Taylor & Francis: Boca Raton, FL) p. 435.
59. Kahn, N. and Bertrand, A. (2005) Caractérisation des tannins de pépins du raisin: une diversité au sein des preparations commeciales. Revue Francaise d'Oenologie 211, 6-9.
60. Kelm, M.A., Hammerstone, J.F. and Schmitz, H.H. (2005) Identification and quantitation of flavanols and proanthocyanidins in foods: how good are the data? Clinical & Developmental Immunology 12, 35-41.
61. Kennedy, J.A., Ferrier, J., Harbertson, J.F. and Gachons, C. (2006) Analysis of tannins in red wine using multiple methods: correlation with perceived astringency. American Journal of Enology and Viticulture 57, 481-485.
62. Kennedy, J.A. and Jones, G.P. (2001) Analysis of proanthocyanidin cleavage products following acid-catalysis in the presence of excess phloroglucinol. Journal of Agricultural and Food Chemistry 49, 1740-1746.
63. Keulder, D.B. (2005) The influence of commercial tannin additions on wine composition and quality. Thesis, Stellenbosch University.
64. Laghi, L., Parpinello, G.P., Del Rio, D., Calani, L., Mattioli, A.U. and Versari, A. (2010) Fingerprint of enological tannins by multiple techniques approach. Food Chemistry 121, 783-788.
65. Lee, C.B. and Lawless, H.T. (1991) Time-course of astringent sensations. Chemical Senses 16, 225-238.
66. Lempereur, V., Blateyron, L., Labarbe, B., Saucier, C., Kelebek, H. and Glories, Y. (2002) Groupe national de travail sur les tannins oenologiques: premiers résultats. Effets instantanés du tanisage sur la couleur. Revue Francais d'Oenologie 196, 27-29.
67. Main, G.L. and Morris, J.R. (2007) Effect of macerating enzymes and postfermentation grape-seed tannin on the color of Cynthiana wines. American Journal of Enology and Viticulture 58, 365-372.
68. Makkar, H.P.S. (1989) Protein precipitation methods for quantitation of tannins: a review. Journal of Agricultural and Food Chemistry 37, 1197-1202.
69. Makkar, H.P.S., Blümmel, M., Borowy, N.K. and Becker, K. (1993) Gravimetric determination of tannins and their correlations with chemical and protein precipitation methods. Journal of the Science of Food and Agriculture 61, 161-165.
70. Manfroi, V., Rizzon, L.A., Guerra, C.C., Fialho, F.B., Dall'Agnol, I., Ferri, V.C. and Rombaldi, C.V. (2010) Influence of different doses and distinct times of application of enological tannins on the physicochemical characteristics of the Cabernet Sauvignon wine. Ciência e Tecnologia de Alimentos 30, 127-135.
71. McManus, J.P., Davis, K.D., Beart, J.E., Gaffney, S.H., Lilley, T.H. and Haslam, E. (1985) Polyphenol interactions. Part 1. Introduction: some observations on the reversible complexation of polyphenols with proteins and polysaccharides. Journal of the Chemical Society Perkin Transactions II 9, 1429-1438.
72. McMurrough, I. and McDowell, J. (1978) Chromatographic separation and automated analysis of flavanols. Analytical Biochemistry 91, 92-100.
73. McRae, J.M. and Kennedy, J.A. (2011) Wine and grape tannin interactions with salivary proteins and their impact on astringency: a review of current research. Molecules 16, 2348-2364.
74. Mercurio, M.D. and Smith, P.A. (2008) Tannin quantification in red grapes and wine: comparison of polysaccharide- and protein-based tannin precipitation techniques and their ability to model wine astringency. Journal of Agricultural and Food Chemistry 56, 5528-5537.
75. Mitropoulou, A., Hatzidimitriou, E. and Paraskevopoulou, A. (2011) Aroma release of a model wine solution as influenced by the presence of non-volatile components. Effect of commercial tannin extracts, polysaccharides and artificial saliva. Food Research International 44, 1561-1570.
76. Mitsunaga, T., Doi, T., Kondo, Y. and Abe, I. (1998) Color development of proanthocyanidins in vanillin-hydrochloric acid reaction. Journal of Wood Science 44, 125-130.
77. Morel-Salmi, C., Souquet, J.M., Bes, M. and Cheynier, V. (2006) Effect of flash release treatment on phenolic extraction and wine composition. Journal of Agricultural and Food Chemistry 54, 4270-4276.
78. Mueller-Harvey, I. (2001) Analysis of hydrolysable tannins. Animal Feed Science and Technology 91, 3-20.
79. Nagel, C.W. and Glories, Y. (1991) Use of a modified dimethylaminocinnamaldehyde reagent for analysis of flavanols. American Journal of Enology and Viticulture 42, 364-366.
80. Neves, A.C., Spranger, M.I., Zhao, Y., Leandro, M.C. and Sun, B. (2010) Effect of addition of commercial grape seed tannins on phenolic composition, chromatic characteristics, and antioxidant activity of red wine. Journal of Agricultural and Food Chemistry 58, 11775-11782.
81. Obradovic, D., Schulz, M. and Oatey, M. (2005) Addition of natural grape tannins to enhance the quality of red wine. The Australian & New Zealand Grapegrower & Winemaker 2, 52-54.
82. Obreque-Slíer, E., Peña-Neira, Á. and López-Solís, R. (2012) Interactions of enological tannins with the protein fraction of saliva and astringency perception are affected by pH. LWT - Food Science and Technology 45, 88-93.
83. Obreque-Slíer, E., Peña-Neira, A., López-Solís, R., Ramírez-Escudero, C. and Zamora-Marín, F. (2009) Phenolic characterization of commercial enological tannins. European Food Research and Technology 229, 859-866.
84. Oliva, J., Azorín, P., Cámara, M.A. and Barba, A. (2001) Incidencia de la adición de distintos taninos enológicos en el color de vinos tintos de Monastrell. Alimentación, Equipos y Tecnología 156, 87-92.
85. Organisation Internationale de la Vigne et du Vin (2009) International oenological codex oenological tannins COEI-1-tannins, INS N°: 181, 1-25 (Organisation Internationale de La Vigne et du Vin: Paris, France).
86. Organisation Internationale de la Vigne et du Vin (2012) International code of oenological practices, part II.3.2-1, 3. Wines, 3.2 clarification of wine (OIV: Paris, France).
87. Parker, M., Smith, P.A., Birse, M., Francis, I.L., Kwiatkowski, M.J., Lattey, K.A., Liebich, B. and Herderich, M.J. (2007) The effect of pre- and post-ferment additions of grape derived tannin on Shiraz wine sensory properties and phenolic composition. Australian Journal of Grape and Wine Research 13, 30-37.
88. Peleg, H., Gacon, K., Schlich, P. and Noble, A.C. (1999) Bitterness and astringency of flavan-3-ol monomers, dimers and trimers. Journal of the Science of Food and Agriculture 79, 1123-1128.
89. Poncet-Legrand, B., Cabane, B., Bautista-Ortín, A.-B., Carillo, S., Fulcrand, H., Pérez, J. and Vernhet, A. (2010) Tannin oxidation: intra- versus intermolecular reactions. Biomacromolecules 11, 2376-2386.
90. Poncet-Legrand, C.A., Edelmann, J.-L., Putaux, D., Cartalade, D., Sarni-Manchado, P. and Vernhet, A. (2003) Poly(L-proline) interactions with flavan-3-ols units: influence of the molecular structure and the polyphenol/protein ratio. Food Hydrocolloids 20, 687-697.
91. Poncet-Legrand, C., Gautier, C., Cheynier, V. and Imberty, A. (2007) Interactions between flavan-3-ols and poly(L-proline) studied by Isothermal Titration Calorimetry: effect of the tannin structure. Journal of Agricultural and Food Chemistry 55, 9235-9240.
92. Prieur, C., Rigaud, J., Cheynier, V. and Moutounet, M. (1994) Oligomeric and polymeric procyanidins from grape seeds. Phytochemistry 36, 781-784.
93. Puech, J.-L., Feuillat, F. and Mosedale, J.R. (1999) The tannins of oak heartwood: structure, properties, and their influence on wine flavor. American Journal of Enology and Viticulture 50, 469-478.
94. Puech, J.-L., Prida, A. and Isz, S. (2007) Quality assessment of oenological tannins utilising global selectivity chemical sensors array ('electronic tongue'). South African Journal of Enology and Viticulture 28, 101-106.
95. Quideau, S., Deffieux, D., Douat-Casassus, C. and Pouységu, L. (2011) Plant polyphenols: chemical properties, biological activities, and synthesis. Angewandte Chemie International Edition 50, 586-621.
96. Quideau, S., Jourdes, M., Lefeuvre, D., Montaudon, D., Saucier, C., Glories, Y., Pardon, P. and Pourquier, P. (2005) The chemistry of wine polyphenolic C-glycosidic ellagitannins trargeting human topoisomerase II. Chemistry a European Journal 11, 6503-6513.
97. Remy, S., Fulcrand, H., Labarbe, B., Cheynier, V. and Moutounet, M. (2000) First confirmation in red wine of products resulting from direct anthocyanin-tannin reactions. Journal of the Science of Food and Agriculture 80, 745-751.
98. Ribéreau-Gayon, P., Glories, Y., Maujean, A. and Dubourdieu, D. (2006) Handbook of enology. Volume 2. The chemistry of wine stabilization and treatments, 2nd edn (John Wiley & Sons Ltd: Chichester, UK) p. 406.
99. Rinaldi, A., Gambuti, A., Moine-Ledoux, V. and Moio, L. (2010) Evaluation of the astringency of commercial tannins by means of the SDS-PAGE-based method. Food Chemistry 122, 951-956.
100. Romero-Cascales, I., Ortega-Regules, A., López-Roca, J.M., Fernández, J.I. and Gómez-Plaza, E. (2005) Differences in anthocyanin extractability from grapes to wines according to variety. American Journal of Enology and Viticulture 56, 212-219.
101. Salagoity-Auguste, M.-H., Tricard, C., Marsal, F. and Sudraud, P. (1986) Preliminary investigation for the differentiation of enological tannins according to botanical origin: determination of gallic acid and its derivatives. American Journal of Enology and Viticulture 37, 301-303.
102. Salas, E., Fulcrand, H., Mendes, E. and Cheynier, V. (2003) Reactions of anthocyanins and tannins in model solutions. Journal of Agricultural and Food Chemistry 51, 7951-7961.
103. Santos-Buelga, C. and Scalbert, A. (2000) Proanthocyanidins and tannin like compounds - nature, occurrence, dietary intake and effects on nutrition and health. Journal of the Science of Food and Agriculture 80, 1094-1117.
104. Sanz, M.L., Martínez-Castro, I. and Moreno-Arribas, M.V. (2008) Identification of the origin of commercial enological tannins by the analysis of monosaccharides and polyalcohols. Food Chemistry 111, 778-783.
105. Sarneckis, C.J., Dambergs, R.G., Jones, P., Mercurio, M., Herderich, M.J. and Smith, P.A. (2006) Quantification of condensed tannins by precipitation with methyl cellulose: development and validation of an optimised tool for grape and wine analysis. Australian Journal of Grape and Wine Research 12, 39-49.
106. Saucier, C., Lopes, P., Mirabel, M., Guerra, C. and Glories, Y. (2004) Tannin-anthocyanin interactions: influence on wine color ACS Symposium Series, 886 (Oxford University Press: Cary, NC) Ch. 16. pp. 265-273.
107. Saucier, C., Mirabel, M., Daviaud, F., Longieras, A. and Glories, Y. (2001) Rapid fractionation of grape seed proanthocyanidins. Journal of Agricultural and Food Chemistry 49, 5732-5735.
108. Scalbert, A. (1992) Quantitative methods for the estimation of tannins in plant tissues. In: Polyphenols. Ed. R.W. Hemingway (Plenum Press: New York) pp. 259-280.
109. Schofield, P., Mbugua, D.M. and Pell, A.N. (2001) Analysis of condensed tannins: a review. Animal Feed science and Technology 91, 21-40.
110. Serrano, J., Puupponen-Pimi, R., Dauer, A., Aura, A.-M. and Saura-Calixto, F. (2009) Tannins: current knowledge of food sources, intake, bioavailability and biological effects. Molecular Nutrition and Food Research 53, S310-S329.
111. Siebert, K.J. (2006) Haze formation in beverages. LWT - Food Science and Technology 39, 987-994.
112. Singleton, V.L. and Trousdale, E.K. (1992) Anthocyanin-tannin interactions explaining differences in polymeric phenols between white and red wines. American Journal of Enology and Viticulture 43, 63-70.
113. Singleton, V.L., Orthofer, R. and Lamuela-Raventós, R.M. (1999) Analysis of total phenols and other oxidation substrates and antioxidants by means of Folin-Ciocalteu reagent. Methods in Enzymology 299, 152-178.
114. Skogerson, K., Downey, M., Mazza, M. and Boulton, R. (2007) Rapid determination of phenolic components in red wines from UV-visible spectra and the method of partial least squares. American Journal of Enology and Viticulture 58, 318-325.
115. Soares, S., Mateus, N. and de Freitas, F. (2007) Interaction of different polyphenols with bovine serum albumin (BSA) and human salivary a-amylase (HSA) by fluorescence quenching. Journal of Agricultural and Food Chemistry 55, 6727-6735.
116. Somers, T.C. (1971) The polymeric nature of wine pigments. Phytochemistry 10, 2175-2186.
117. Souquet, J.M., Cheynier, V., Brossaud, F. and Moutounet, M. (1996) Polymeric proanthocyanidins from grape skins. Phytochemistry 43, 509-512.
118. South Africa (1990) Liquor products act 60 of 1989 of South Africa. Government Gazette 12558, 29 June 1990, 58.
119. Thorngate, J.H. (2006) Methods for analyzing phenolics in research. American Journal of Enology and Viticulture 57, 269-279.
120. Thorngate, J.H. and Noble, A.C. (1995) Sensory evaluation of bitterness and astringency of 3R(-)-epichatechin and 3S(+)-catechin. Journal of the Science of Food and Agriculture 67, 531-535.
121. Thorngate, J.H. and Singleton, V.L. (1994) Reactions of monomeric and polymeric flavan-3-ols with monomeric pigment in model wine solutions. American Journal of Enology and Viticulture 45, 349-352.
122. Timberlake, C.F. and Bridle, P. (1976) Interactions between anthocyanins, phenolic compounds, and acetaldehyde and their significance in red wines. American Journal of Enology and Viticulture 27, 97-105.
123. Vázquez, G., Fontenla, E., Santos, J., Freire, M.S., González-Álvarez, J. and Antorrena, G. (2008) Antioxidant activity and phenolic content of chestnut (Castanea sativa) shell and eucalyptus (Eucalyptus globulus) bark extracts. Industrial Crops and Products 28, 279-285.
124. Vernhet, A., Pellerin, P., Prieur, C., Osmianski, J. and Moutounet, M. (1996) Charge properties of some grape and wine polysaccharide and polyphenolic fractions. American Journal of Enology and Viticulture 47, 25-30.
125. Versari, A., Parpinello, G.P. and Laghi, L. (2012) Application of infrared spectroscopy for the prediction of color components of red wines. Spectroscopy 27, 2-9.
126. Vidal, S., Francis, L., Guyot, S., Marnet, N., Kwiatkowski, M., Gawel, R., Cheynier, V. and Waters, E.J. (2003) The mouth-feel properties of grape and apple proanthocyanidins in a wine-like medium. Journal of the Science of Food and Agriculture 83, 564-573.
127. Vivas, N., Chauvet, S., Glories, Y. and Sudraud, P. (1993) Techniques de controle et d'évaluation de la qualité des tanins oenologiques. Annales des Falsifications, de l'Expertise Chimique et Toxicologique 86, 215-222.
128. Vivas, N. and Glories, Y. (1996) Role of oak wood ellagitannins in the oxidation process of red wines during ageing. American Journal of Enology and Viticulture 47, 103-107.
129. Vivas, N., Monier, M.-F. and Vivas De Gaulejac, N. (2003) Incidence de preparations commerciales de tannins sur les caractéristiques chromatiques des vins rouges. Progrès Agricole et Viticole 120, 431-435.
130. Vivas, N., Nonier, M.F. and Vivas De Gaulejac, N. (2004) Structural characterization and analytical differentiation of grape seeds, skins, stems and Quebracho tannins. Bulletin de O.I.V. 77, 643-659.
131. Vivas, N., Vivas De Gaulejac, N. and Nonier, M.F. (2002) Mise au point sur les tanins oenologiques et bases d'une nouvelle définition qualitative. Setting up enological tannins and bases for a new qualitative definition. Bulletin de O.I.V. 853-854, 175-185.
132. Waterman, P.G. and Mole, S. (1994) Analysis of phenolic plant metabolites (Blackwell: Oxford).
133. Wilson, T.C. and Hagerman, A.E. (1990) Quantitative determination of ellagic acid. Journal of Agricultural and Food Chemistry 38, 1678-1683.
134. Zoecklein, B. (2007) Enology notes #128. http://www.fst.vt.edu/extension/enology/EN/128.html