Enzymatic production of gluconic acid or its salts

Details Enzymatic production of gluconic acid or its salts Enzymatic production of gluconic acid or its salts

C - Chemistry, Metallurgy

12

P

C12P 7/58 (2006.01) C12N 9/04 (2006.01) C12N 9/08 (2006.01)

Patent

CA 2194859

An enzymatic process for the conversion of glucose into gluconic acid, using concentrated glucose solutions. The process uses a combination of glucose oxidase and catalase enzymes which may be obtained from an Aspergillus niger strain and has a high ratio of catalase:glucase oxidase activity. The enzymatic process requires less time than conventional fermentation processes, the yield of the conversion is close to 100% and the obtained gluconic acid/gluconate solutions do not contain impurities.

Procédé enzymatique de conversion du glucose en acide gluconique à l'aide de solutions de glucose concentrées. Ledit procédé consiste à utiliser une combinaison d'enzymes glucose oxydase et catalase, qui peut être obtenue à partir d'une souche d'Aspergillus niger et qui possède un taux élevé d'activité catalase/glucose oxydase. Ledit procédé enzymatique exige moins de temps que les processus de fermentation traditionnels, le rendement de la conversion est proche de 100 % et les solutions d'acide gluconique/gluconate ainsi obtenues ne contiennent pas d'impuretés.

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