APPLICABILITY OF POLYETHYLENE GLYCOLS TO CRYSTALLIZATION OF GLUCONIC ACID CALCIUM SALTS AND BIOCONVERSION OF GLUCOSE TO CALCIUM GLUCONATE
 
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Pol. J. Food Nutr. Sci. 1999;49(3):71–79
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ABSTRACT
The influence of polyethylene glycols of molecular weight from 1000 to 35000 on calcium gluconate crystallization rate and on the productivity of glucose oxidase in the process of glucose bioconversion to calcium gluconate was studied. It was shown that polyethylene glycols PEG 1000 to 35000 used in doses from 5 to 50 g/L caused a 10 to 33% shortening of the time of calcium gluconate crystallization. The molecular weight of polyethylene glycol used in these doses had no effect on the rate of calcium gluconate crystallization. The polyethylene glycols PEG 1000 to 35000 reveal a protective action for glucose oxidase. The productivity of enzyme grew by 12 to 15% for polyethylene glycols used in a dose of 5 g/L in the glucose bioconversion to calcium gluconate.
ISSN:1230-0322