Use of mathematical laws for optimizing the dose of swollen and dry bentonite during the fining of white wines. Part II : influence on the volume of lies and economics

A Sauvignon white wine was fined with a dry bentonite (BS), e.g directly incorporated in the wine without swelling treatment, or with the same bentonite swelled in water 24 hours before utilization (BG). The volumes of lees generated by the fining were situated between 0,27 and 1,51 % (v/v) for BS,...

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Main Authors: Richard Marchal, S. Weingartner, Philippe Jeandet, Franck Chatelain
Format: Article
Language:English
Published: International Viticulture and Enology Society 2003-06-01
Series:OENO One
Subjects:
Online Access:https://oeno-one.eu/article/view/945
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spelling doaj-f107bd3d5d414b6abf6239f1077b0fce2021-04-02T15:21:20ZengInternational Viticulture and Enology SocietyOENO One2494-12712003-06-0137212313010.20870/oeno-one.2003.37.2.945945Use of mathematical laws for optimizing the dose of swollen and dry bentonite during the fining of white wines. Part II : influence on the volume of lies and economicsRichard Marchal0S. Weingartner1Philippe Jeandet2Franck Chatelain3Laboratoire d'oenologie, Université de Reims, URVVC, UPRES EA 2069 B.P. 1039, 51687 Reims cedex, FranceLes Caves de la Tourangelle, Saint-Georges sur Cher, 41400 Montrichard, FranceLaboratoire d'Oenologie et Chimie Appliquée, U.R.V.V.C., UPRES EA 2069, Faculté des Sciences, Université de Reims, B.P. 1039, 51687 Reims cedex 02, FranceMaison Bougrier, Saint-Georges sur Cher, 41400 Montrichard, FranceA Sauvignon white wine was fined with a dry bentonite (BS), e.g directly incorporated in the wine without swelling treatment, or with the same bentonite swelled in water 24 hours before utilization (BG). The volumes of lees generated by the fining were situated between 0,27 and 1,51 % (v/v) for BS, and between 1,07 and 4,59 % (v/v) for BG. The relation between the quantity of bentonite introduced in the wine (g/hl) and the volume of lees (v/v) follows a power law. The volume of lees only increased by 70 % when the dose of swelled bentonite was doubled; for higher doses of bentonite (rarely used), one can observe a packing of the lees. For BS, lees were approximately twice more volumetric when the dose was doubled. We also observe very good relationship between the clarifying efficiency and the volume of lees. When the clarifying efficiency of BG increased by 10 % the volume of lees increased by 74 %. For BS, when the clarifying efficiency increased by 10 % the volume of lees increased by 86 % because of its low efficiency during clarification. The decrease of the natural proteic haze risk and the volume of lees generated by bentonite fining were also closely correlated by an exponential law. For BG, the mathematical law showed that when the volume of lees increased by 0,1 % (v/v), colloidal haze risk decreased only by 22 %. On the contrary, for BS, when the volume of lees increased by 0,1 %, proteic haze risk decreased by 44 %. Finally, the estimation of the cost of fining showed that the use of a non swelled bentonite was economically more interesting than the utilization of a swelled bentonite. This was true when this Sauvignon wine is sold both in bottle or in bulk. For the studied wine, the estimated winning was 115 euros for 10 hl sold in bulk.https://oeno-one.eu/article/view/945bentoniteswelling claywhite wineSauvignonleescosteconomics
collection DOAJ
language English
format Article
sources DOAJ
author Richard Marchal
S. Weingartner
Philippe Jeandet
Franck Chatelain
spellingShingle Richard Marchal
S. Weingartner
Philippe Jeandet
Franck Chatelain
Use of mathematical laws for optimizing the dose of swollen and dry bentonite during the fining of white wines. Part II : influence on the volume of lies and economics
OENO One
bentonite
swelling clay
white wine
Sauvignon
lees
cost
economics
author_facet Richard Marchal
S. Weingartner
Philippe Jeandet
Franck Chatelain
author_sort Richard Marchal
title Use of mathematical laws for optimizing the dose of swollen and dry bentonite during the fining of white wines. Part II : influence on the volume of lies and economics
title_short Use of mathematical laws for optimizing the dose of swollen and dry bentonite during the fining of white wines. Part II : influence on the volume of lies and economics
title_full Use of mathematical laws for optimizing the dose of swollen and dry bentonite during the fining of white wines. Part II : influence on the volume of lies and economics
title_fullStr Use of mathematical laws for optimizing the dose of swollen and dry bentonite during the fining of white wines. Part II : influence on the volume of lies and economics
title_full_unstemmed Use of mathematical laws for optimizing the dose of swollen and dry bentonite during the fining of white wines. Part II : influence on the volume of lies and economics
title_sort use of mathematical laws for optimizing the dose of swollen and dry bentonite during the fining of white wines. part ii : influence on the volume of lies and economics
publisher International Viticulture and Enology Society
series OENO One
issn 2494-1271
publishDate 2003-06-01
description A Sauvignon white wine was fined with a dry bentonite (BS), e.g directly incorporated in the wine without swelling treatment, or with the same bentonite swelled in water 24 hours before utilization (BG). The volumes of lees generated by the fining were situated between 0,27 and 1,51 % (v/v) for BS, and between 1,07 and 4,59 % (v/v) for BG. The relation between the quantity of bentonite introduced in the wine (g/hl) and the volume of lees (v/v) follows a power law. The volume of lees only increased by 70 % when the dose of swelled bentonite was doubled; for higher doses of bentonite (rarely used), one can observe a packing of the lees. For BS, lees were approximately twice more volumetric when the dose was doubled. We also observe very good relationship between the clarifying efficiency and the volume of lees. When the clarifying efficiency of BG increased by 10 % the volume of lees increased by 74 %. For BS, when the clarifying efficiency increased by 10 % the volume of lees increased by 86 % because of its low efficiency during clarification. The decrease of the natural proteic haze risk and the volume of lees generated by bentonite fining were also closely correlated by an exponential law. For BG, the mathematical law showed that when the volume of lees increased by 0,1 % (v/v), colloidal haze risk decreased only by 22 %. On the contrary, for BS, when the volume of lees increased by 0,1 %, proteic haze risk decreased by 44 %. Finally, the estimation of the cost of fining showed that the use of a non swelled bentonite was economically more interesting than the utilization of a swelled bentonite. This was true when this Sauvignon wine is sold both in bottle or in bulk. For the studied wine, the estimated winning was 115 euros for 10 hl sold in bulk.
topic bentonite
swelling clay
white wine
Sauvignon
lees
cost
economics
url https://oeno-one.eu/article/view/945
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