The fine wines of the Langhe > Definition of wine

Wine is a hydro-alcoholic solution which consists of substances contained in grapes (i.e. water, glucose, fructose, tartaric acid, citric and malic acid, tannins and colouring substances, albumin, sorbitol, inositol, pentose, mineral substances, vitamins and enzymes) and substances due to must and marc fermentation (i.e. ethylic alcohol, glycerine, acetyl-methyl-carbinol, acetic acid, succinic and lactic acid, superior fat acid, aldehyde esters and carbon dioxide).