Carbon Dioxide → D-(-)-Fructose

Participants

Reaction Steps

The recovered crystals were suspended into chilled water, and the suspension was neutralized until below pH 10 by introducing carbon dioxide gas at 0° C. The precipitates of calcium carbonate were filtered, and the filtrate of which pH was about 8.5 was concentrated to 420 g. The concentrated solution contained 202 g fructose (Yield; 66.7%) and 8 g glucose. The concentrated solution was passed through two columns, one was packed with strongly acidic cation exchange resin and the other was packed with weakly basic anion exchange resin, and accordingly the solution was desalted and partially decolorized. The effluent was further treated with activated carbon, concentrated, and colorless solution (fructose concentration; 70%) was obtained.

Provenance & Evidence