oxydasic casse

Lemma

oxydasic casse

Etichetta di dominio

EN

Etichetta grammaticale

c. n.

Definizione

The extreme oxidation of must and wine, characterized by coloured haziness and reduced limpidity, when the grapes are insufficiently ripe and affected by rot. 1 2

Nota

Oxidasic casse is caused by an enzyme (polyphenolozidase) which makes wine cloud upon exposure to air and change colour - red wines turn brown and white wines turn yellow, forming a deposit after some time. It is often present in wines made from slightly overripe or mouldy grapes. 3
A “cooked” or a rancio (aldehydic) odour also usually develops. A wine may be protected from the action of the phenolase enzyme by the use of sufficient sulfur dioxide or by destroying the oxidase by flash pasteurization at 70° to 85°C (158° to 185° F), according to the condition of the wine. This form of casse is less common in America than in Europe. 4

Contesto

Laccase is always present, leading to a risk of oxydasic casse. Treatment with SO (6 to 8 g/hl) is indispensable, and contact with air must be avoided in the pre-fermentation phase. 2

Trascrizione fonetica

/ˌɒksɪˈdesɪk kɑs/

Sinonimi e Antonimi

brown casse, browning, oxidasic. 5 6

Abbreviazioni
ND
Etimologia

Casse (break): from the French verb casser (to break) and the Latin verb quassare.
Oxy-: used as a comb. form of oxygen. 7 8

Etichetta di paese
ND
Ente

Università degli Studi di Genova, Facoltà di Lingue e Letterature Straniere, Corso di Laurea in Teorie e Tecniche della Mediazione Interlinguistica.

Data della scheda
Mon Dec 3 22:58:52 2012
Autore

Gabriele Cesarini

Fonti

1 : Wine School of Champagne, «Oxydasic casse - Brown casse - Wine», /i:i], 04/10/12,

2 : Ribéreau-Gayon, Glories, Maujean, Dubourdieu, Handbook of Enology, The Chemistry of Wine: Stabilization and Treatments, vol. 2, John Wiley & Sons, Ltd, 2006, 193

3 : Lichine A., Alexis Lichine's encyclopedia of wines and spirits, Knopf, 1967, 713

4 : Amerine M. A., Joslyn M. A., , Table Wines: The Technology of Their Production, Volume 2, University of California Press, 1951, 800

5 : «raquo;, Vinia Traian, 04/10/12,

6 : «Winemaking with rotten grapes: It can be a headache», Wynboer, 05/10/12,

7 : «casse», Treccani.it l'enciclopedia italiana, 20/11/12,

8 : «oxy-», online etymology dictionary, 20/11/12,

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