The present invention relates to a method for producing .alpha.-hydroxy acids using an enzyme catalyst having nitrilase activity. More specifically, the invention pertains to use of Acidovorax facilis 72W (ATCC 55746) nitrilase to hydrolyze glycolonitrile to glycolic acid. Glycolonitrile is reacted in an aqueous mixture with a catalyst having Acidovorax facilis 72W nitrilase activity to give glycolic acid selectively, and at high concentration and high yield.

A invenção atual relaciona-se a um método para produzir ácidos alpha.-alpha.-hydroxy usando um catalizador do enzyme que tem a atividade do nitrilase. Mais especificamente, a invenção pertence ao uso do nitrilase dos facilis 72W de Acidovorax (ATCC 55746) hydrolyze glycolonitrile ao ácido glycolic. Glycolonitrile é reagido em uma mistura aqueous com um catalizador que tem facilis de Acidovorax a atividade do nitrilase que de 72W dá o ácido glycolic seletivamente, e na concentração elevada e no rendimento elevado.

 
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