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...
Igor, BAROJA-CAREAGA, University of the Basque Country - Elena, GARCÍA DE LA PEÑA, Ardoatek - Dario, CANTU, University of California, Davis - And one, ESTONBA, University of the Basque Country - I...
Alexandra LOWREY, University of Auckland, New Zealand Bruno FEDRIZZI, University of Auckland Rebecca JELLEY, University of Auckland Stuart MORROW, University of Auckland
Parpinello, G.P., Ricci, A., Serantoni, M., Balducci, A., Ragni, L., Versari, A.; University of Bologna, Italy
Proteins occurring in wine originate from several sources during the winemaking process. Protein content in wines ranges from traces up to hundreds of mg/L, and may cause physical instability in wh...
Manuel Meneghetti, DSMN, Università Ca’ Foscari Venezia
The sun, the main natural resource of our planet, has been studied in recent years optimizing materials, technologies and processes to obtain electrical energy thanks to the best renewable and clea...
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