Immunotestπ: a new test for the determination of proteic stability in white and rosé wines
Abstract
Proteic haze is a problem which may occur in all fruit-based beverages and fermented juices (beer, cider, wine). When it occurs, the economic loss is important. To avoid this, there are numerous tests to estimate the proteic stability of white and rosé wines. However, these are not specific towards unstable proteins. As none of these tests seems to satisfy completely the users, we compared them. We then used immunology to develop a new test for the determination of proteic stability of wine: ImmunoTest. This immunological test is a new test to check wine proteic stability. It seems to be sensitive neither to products used in oenology nor to wine turbidity. ImmunoTest is presented as a kit and a range of bentonite can be associated to it. Thanks to the specific antibodies and to the range of bentonite used by the winemaker, this kit allows determining the optimal and reasonable quantity of bentonite needed to obtain wine stability.
Issue: Macrowine 2010
Type: Article
Authors
Sofralab, 79 avenue A. A. Thévenet BP 1031 Magenta 51319 Epernay cedex, France
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Keywords
wine, protein, haze