ETHANOL-INDUCED CHANGES IN PROTEINS AND SOME MINERAL COMPOUNDS OF MILK.

The ethanol-influenced changes in proteins and some mineral compounds of milk were examined. Despite apparent phasing (induction and post-induction phases), the ethanol coagulation of milk was found to be a continuous process, lasting until 75% of proteins was coagulated and about 20% of proteins was changed into proteozo-peptone and non-protein nitrogen. It was shown that αs2-casein and β-lactoglobulin were more resistant to the action of alcohol than to heating. The solubility of mineral compounds of milk was found to decrease upon the alcohol addition and the Ca/P weight ratio was indicative of variability in the form of salts being precipitated.

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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.