Patent ID: 6942997
Filing Date: 2005-09-13
Classification: B01J,C07C,C12P

Abstract:
1. A process for the production of a low-dust spray-granulated gluconic acid, comprising the steps of: (a) obtaining a gluconic acid-containing solution wherein said solution is produced by the enzymatic conversion of glucose to gluconic acid, said conversion comprising providing a solution of glucose and adding to the solution from about 25 to about 30 glucose oxidase units (GOU) of soluble glucose oxidase/gram dissolved solids (ds.) of glucose in the solution and at least 1200 catalase units (CU) of soluble catalase/gram dissolved solids of glucose in the solution; (b) obtaining gluconic acid crystals from the solution; and (c) spray-coating the gluconic acid crystals with liquid sodium gluconate in a spray-dryer, whereby a spray-granulated gluconic acid is obtained.