Abstract: A method of introducing yeast into a fruit juice such as grape must to be fermented is disclosed. The method comprises feeding dry yeast into a flowing stream of the fruit juice and delivering the flowing stream of fruit juice with the yeast in it to a mixer (10). The fruit juice and yeast emerging from the mixer is fed into a fermentation tank. The yeast can include nutrients selected from inactivated yeasts, yeast autolysates, yeast cell hulls, yeast extracts, amino acids, peptides, proteins, sterols, ergosterol, thiamin, biotin, pantothenic acid, niacin, riboflavin, pyridoxine, minerals and inorganic nitrogen in the form of ammonium salts.

Abstract: A method of introducing yeast into a fruit juice such as grape must to be fermented is disclosed. The method comprises feeding dry yeast into a flowing stream of the fruit juice and delivering the flowing stream of fruit juice with the yeast in it to a mixer (10). The fruit juice and yeast emerging from the mixer is fed into a fermentation tank. The yeast can include nutrients selected from inactivated yeasts, yeast autolysates, yeast cell hulls, yeast extracts, amino acids, peptides, proteins, sterols, ergosterol, thiamin, biotin, pantothenic acid, niacin, riboflavin, pyridoxine, minerals and inorganic nitrogen in the form of ammonium salts.

Abstract: A method of introducing yeast into a fruit juice such as grape must to be fermented is disclosed. The method comprises feeding dry yeast into a flowing stream of the fruit juice and delivering the flowing stream of fruit juice with the yeast in it to a mixer (10). The fruit juice and yeast emerging from the mixer is fed into a fermentation tank. The yeast can include nutrients selected from inactivated yeasts, yeast autolysates, yeast cell hulls, yeast extracts, amino acids, peptides, proteins, sterols, ergosterol, thiamin, biotin, pantothenic acid, niacin, riboflavin, pyridoxine, minerals and inorganic nitrogen in the form of ammonium salts.

Abstract: A method of introducing yeast into a fruit juice such as grape must to be fermented is disclosed. The method comprises feeding dry yeast into a flowing stream of the fruit juice and delivering the flowing stream of fruit juice with the yeast in it to a mixer (10). The fruit juice and yeast emerging from the mixer is fed into a fermentation tank. The yeast can include nutrients selected from inactivated yeasts, yeast autolysates, yeast cell hulls, yeast extracts, amino acids, peptides, proteins, sterols, ergosterol, thiamin, biotin, pantothenic acid, niacin, riboflavin, pyridoxine, minerals and inorganic nitrogen in the form of ammonium salts.

Abstract: A method of introducing yeast into a fruit juice such as grape must to be fermented is disclosed. The method comprises feeding dry yeast into a flowing stream of the fruit juice and delivering the flowing stream of fruit juice with the yeast in it to a mixer (10). The fruit juice and yeast emerging from the mixer is fed into a fermentation tank. The yeast can include nutrients selected from inactivated yeasts, yeast autolysates, yeast cell hulls, yeast extracts, amino acids, peptides, proteins, sterols, ergosterol, thiamin, biotin, pantothenic acid, niacin, riboflavin, pyridoxine, minerals and inorganic nitrogen in the form of ammonium salts.

Abstract: Enzyme degrading rhamnogalacturonane II (RG-II) having an endo-.beta.-L-rhamnopyranosyl-(I.fwdarw.3')-D-apiofuranosyl hydrolase activity and/or an endo-.alpha.-L-fucopyranosyl-(I.fwdarw.4)-L-rhamnopyranosyl hydrolase activity. This enzyme can be produced by a microorganism, especially of the penicillium species, such as the branches 1-1577 and 1-1578 lodged with the CNCM. The RG-II can obtained from plant extracts by means of a method comprising a chromatography stage.