Insoluble yeast extract

Details Insoluble yeast extract Insoluble yeast extract

A - Human Necessities

61

K

A61K 31/715 (2006.01) A61K 8/73 (2006.01) A61K 8/99 (2006.01) A61Q 19/00 (2006.01) C12P 19/04 (2006.01) A61K 35/72 (1990.01) A61K 7/48 (1990.01)

Patent

CA 2072145

A method for the production of yeast extract is disclosed wherein yeast cells are initially autoclaved in the presence of an alkaline solution. The residual alkali extracted material is then extracted with an acid. The acid extracted residue is then washed with ethanol. This method of producing yeast extract can be executed in a much shorter time period than previously known methods, generally in approximately eight hours. The method yields a glucan product which is substantially free of protein and which is a potent stimulator of macrophage activity.

éthode d'obtention d'extrait de levure par laquelle des cellules de levures sont initialement autoclavées en présence d'une solution alcaline. Le résidu extrait par un produit alcalin est soumis à une extraction à l'acide. Ce résidu extrait à l'acide est ensuite lavé à l'éthanol. Cette méthode pour l'obtention d'extrait de levure peut être appliquée en beaucoup moins de temps que les méthodes antérieures, généralement en huit heures. La méthode donne un produit de dextrane substantiellement débarrassé de protéines et qui est un puissant stimulant de l'activité des macrophages.

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