Читать книгу Handbook of Enology, Volume 2 - Pascal Ribéreau-Gayon - Страница 36

This is a completely different approach to forecasting tartrate instability, which is still one of the main problems in winemaking.

By transposing methods used for crystallization in solution, Devatine et al. (2002) developed Mextar, a software program that offers a reliable measure of the stability or degree of instability of a wine by means of calculations using analysis data on the constituents of the wine's acidity. It is, thus, theoretically possible to obtain an accurate assessment of the need to subject a wine to stabilization treatment. The calculation also predicts changes in chemical composition during spontaneous or induced transformations. Finally, Mextar can be used to model changes in a wine's acidity by simulating acidification and deacidification operations, as well as malolactic fermentation, and predicting the pH and total acidity values following these processes.

It will be interesting to monitor the development of this system and its application to different types of wine.