METHOD OF STABILISING GRAPE WINE Russian patent published in 2011 - IPC C12G1/00 C12H1/02 

FIELD: chemistry.

SUBSTANCE: polyvinylpyrrolidone (PVP) is mixed with at least one light fullerene, for example C₆₀, in weight ratio 1.0:(0.001-0.3). A mixture of mainly light fullerenes (MLF) C₆₀ and C₇₀ may be used instead of one fullerene. The mixture is dissolved in the wine. The wine is held until precipitation stops and the precipitate is removed. After mixing, the obtained mass is ground until powder with a homogenous colour forms. A mixture of PVP and MLF in form of a wine solution, which is obtained beforehand by extracting MLF from fullerene-containing soot with the PVP wine solution, can be used.

EFFECT: invention increases quality of grape wine, enables to achieve optimum pH and the required optical density of the wine colour, lower susceptibility of the wine to oxidation and toxicity.

4 cl, 6 tbl, 3 ex