| abstract |
The present invention relates to a process for the production of wine using the traditional process of fermentation with the exception that, after fermentation, the wine is placed in contact with a film based on hydrogen peroxide and without addition of sulfuric acid to the wine. The present invention further relates to a process for the preparation of the filmy-based film of quitosan by the modification of the cheliosine with natural compounds which allow to produce films of acid-stable chelates, with high anti-oxidative activity and maintaining the antimicrobial activity. In one embodiment, the films are prepared by a covalent bonding to the molasses of molasses which allow them to increase their insolubility in the acidic medium, such as for example the genipine, and of high-molecular-weight molecules such as, for example, caffeic acid or grape extracts OR WINE RICH IN COMPOUNDS WITH ANTIOXIDANT ACTIVITY. |