Process for the manufacture of methyl glucoside having low...

Details Process for the manufacture of methyl glucoside having low... Process for the manufacture of methyl glucoside having low...

C - Chemistry, Metallurgy

07

H

C07H 15/04 (2006.01) C12S 99/00 (2010.01) C07H 15/02 (2006.01)

Patent

CA 2252166

A process for decolorizing an aqueous solution of methyl glucoside, the solution containing at least one color component and at least one sugar component, is disclosed. The process comprises the seeps of providing the aqueous solution of MeG; adding to said solution an amount of yeast or other sugar-converting microorganism sufficient to reduce the level of said sugar component; preferably further adding to the solution an amount of activated carbon sufficient to assist the color component in the solution; and recovering the solution to yield a decolorized, low-sugar solution of MeG. Also disclosed is a process comprising the steps of providing a solution containing MeG and dextrose; and adding to the solution an amount of a sugar-converting microorganism sufficient to reduce the level of the dextrose in the solution. Decolorized MeG solutions prepared by the foregoing processes also are disclosed.

Divulgation d'une méthode pour décolorer une solution aqueuse de méthylglucoside, la solution renfermant comme constituants au moins un colorant et au moins un sucre. La méthode comprend les étapes suivantes : obtenir une solution aqueuse de MeG; ajouter à ladite solution une certaine quantité de levure ou d'autres microorganismes pour conversion de sucres, quantité suffisante pour réduire la concentration dudit sucre; de préférence, ajouter encore à la solution une quantité de charbon actif suffisante pour le colorant dans la solution; récupérer la solution de façon à obtenir une solution de MeG décolorée et pauvre en sucre. On divulgue également un procédé comprenant les étapes suivantes : obtenir une solution renfermant du MeG et du dextrose; ajouter à la solution une quantité de microorganismes pour conversion de sucres, suffisante pour réduire la concentration de dextrose dans la solution. L'invention porte enfin sur des solutions de MeG décolorées, préparées grâce aux procédés décrits ci-dessus.

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