APPLICABILITY OF POLYETHYLENE GLYCOLS TO CRYSTALLIZATION OF GLUCONIC ACID CALCIUM SALTS AND BIOCONVERSION OF GLUCOSE TO CALCIUM GLUCONATE

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.

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eISSN:	2083-6007
ISSN:	1230-0322

W latach 2022-2024 kwartalnik naukowy Polish Journal of Food and Nutrition Sciences realizuje projekt nr RCN/SP/0520/2021/1 finansowany ze środków budżetu państwa – Ministerstwo Edukacji i Nauki w ramach programu „Rozwój czasopism naukowych”. Dofinansowanie wynosi 120 000 zł. W ramach projektu podejmowane są działania zmierzające do podniesienia poziomu praktyk wydawniczych i edytorskich, zwiększenia wpływu czasopism na rozwój nauki oraz utrzymania się czasopism w międzynarodowym obiegu naukowym.

In the years 2022-2024, the scientific quarterly Polish Journal of Food and Nutrition Sciences accomplishes a project no. RCN/SP/0520/2021/1 financed from the state budged – Ministry of Education and Science Republic of Poland in the framework of a program “Development of scientific journals”. The financing amounts to 120,000 PLN. The program aims at improving the level of publishing and editing practices, increasing the impact of scientific journals on science development, and extending the international range of scientific journals.