Process for manufacturing tagatose

Details Process for manufacturing tagatose Process for manufacturing tagatose

C - Chemistry, Metallurgy

07

H

C07H 3/02 (2006.01) C07H 23/00 (2006.01) C13K 13/00 (2006.01)

Patent

CA 2077257

A process is disclosed for the synthesis of D-tagatose by isomerizing a mixture containing D-galactose with a metal hy- droxide in the presence of a catalyst at a relatively low temperature to form an intermediate metal hydroxide-D-tagatose complex, and then neutralizing the intermediate with acid to yield D-tagatose. The method is also suitable for the synthesis of L-tagatose from L-galactose, and for the recovery of pure tagatose from crude tagatose syrups. Whey, deproteinized whey, or lactose may be used as the raw material for the D-galactose. The lactose in such cases is hydrolyzed to D-galactose and D-glucose before the is- omerization step. Image

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