PROPOSAL FOR AN ALTERNATIVE PRODUCT TO ACIDIFY GRAPE MUSTS AND WINES
Emilio CELOTTI, Paolo FIORINI, Sabrina CANTONI, Salvatore MARINO
The possible use in winemaking of the cluster removed in thinning performed at the color change, as source of malic acid has been studied. The grape removed during the cluster thinning in the month of July, were grinded with the related stems; the mass was therefore pressed in order to obtain an acid juice (70%-80% yield).
The sensory characteristics of the treated wines showed to be improved enhancing also their freshness. Moreover, in the case of grape from vintages poor in malic acid, malolactic fermentation becomes possible. Considering the normal thinning rate, the produced juice is more than enough to correct the acidity of the all wins produced from the same vineyard.
This could possibility be taken into account from the designated body in order to allow a winemaking practice at low cost that allows the use of a byproduct of the productive thread.
The seasonal character of harvests limits winemaking considerably, especially oenological research. Thus, conserving sterile musts during the whole year to carry out experiments is certainly a very...
Antonio MORATA, Universidad Politécnica de Madrid, Spain
In the keynote speech given at Enoforum 2022, Antonio Morata talked about emerging non-thermal technologies applied to oenology and their impact on the extraction of phenolic compounds from grapes,...
Hranilovic A. et al., ISVV, University of Bordeaux (France) | The University of Adelaide (Australia)
Interesting and sustainable oenological solution to combat the lack of acidity in wines and microbial threats: bio- acidification with some strains of Lachancea thermotolerans through the productio...
Recording of the webinar held by Dominique Delteil
In this recording of the webinar held by Dominique Delteil (Delteil International Wine Consulting) topics covered are: the origin of gluconic acid, its importance as an indicator for optimal grape ...
Santiago Benito, Polytechnic Univeristy of Madrid (Spain)
The work develops a method that comprises combining the use of two non-Saccharomyces yeast as an alternative to the traditional malolactic fermentation in specific difficult scenarios...
Fabio MENCARELLI, Pisa University | Beatriz PANIAGUA ORTÍZ, González Byass Group
How to transform any tank into a quality fermenting tank? What is fluid racking? What about maceration with a broken cap? How to drastically reduce manpower, energy, washing water, time and operati...
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