Production of wine

Details Production of wine Production of wine

C - Chemistry, Metallurgy

12

G

195/14, 182/15.5

C12G 1/00 (2006.01) C12G 3/08 (2006.01)

Patent

CA 1166969

ABSTRACT OF THE DISCLOSURE The Labrusca Flavour Index (LFI~ of grape wine made from Labrusca grapes is decreased substantially by subjecting grape juice or wine produced from the grape juice to reverse osmosis at ambient temperatures to cause the low molecular weight volatile esters, especially methyl anthranilate, to pass through the semi-permeable membrane. The reverse osmosis usually is effected with a membrane having a molecular weight cut-off of about 200 which enables colourants and sugars to be retained. By decreasing the LFI value of the wine, larger proportions may be used to blend with less proportions of higher quality Vinifera wine

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