| abstract |
The invention relates to a method and equipment for extracting compounds from grapes by means of ultrasound in wine-making processes, said ultrasound being generated by a sonoplate coupled to the walls of the pipe/duct through which the crushed grapes flow. During extraction, colour-generating phenols are transferred from the solid portion (skin) to the liquid, after the grapes are crushed, as a result of the phenomenon known as cavitation, which enables the skin cells to be broken and makes the colour-generating phenolic compounds available so as to be integrated in the liquid medium, enhancing the color of the wine. |