Determination of rheological behaviour of wine lees

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F15%3A43906717" target="_blank" >RIV/62156489:43210/15:43906717 - isvavai.cz</a>

Alternative codes found

RIV/60460709:41210/15:67676 RIV/62156489:43510/15:43906717

Result on the web

<a href="http://produkcja.ipan.lublin.pl/uploads/publishing/files/6%20Lachman%2029%283%29.pdf" target="_blank" >http://produkcja.ipan.lublin.pl/uploads/publishing/files/6%20Lachman%2029%283%29.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1515/intag-2015-0036" target="_blank" >10.1515/intag-2015-0036</a>

Result language

angličtina

Original language name

Determination of rheological behaviour of wine lees

Original language description

This study deals with the rheological properties of wine lees. Samples of wine lees of the Saint Laurent variety were used in this experiment. The investigated wine lees arose in the process of production red grape wine in 2013 (Czech Republic). At first, the chemical background was determined. The chemical background includes the following chemical parameters: total acidity, pH, alcohol content, reduced sugars, free SO2, total SO2, and volatile acid. In the second phase of the study, physical properties were determined. Specifically, a sample of wine lees was subjected to rheological tests. These tests consisted in determination of dependence of dynamic viscosity on the temperature, hysteresis loop tests, dependence of dynamic viscosity on the time and step-down in the shear rate test. The experiment demonstrated that the dynamic viscosity increased with increased temperature - this phenomenon is caused by thermolabile proteins - and the wine lees has rheopectic behaviour; the degree of rheopexy was found to rise with the increasing temperature.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

GM - Food industry

OECD FORD branch

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Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

International Agrophysics

ISSN

0236-8722

e-ISSN

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Volume of the periodical

29

Issue of the periodical within the volume

3

Country of publishing house

PL - POLAND

Number of pages

5

Pages from-to

307-311

UT code for WoS article

000358611200006

EID of the result in the Scopus database

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