EFFECT OF WHEY ADDITION TO MILK ON FUNCTIONAL PROPERTIES OF ITS POWDER.

The chemical composition, solubility, and dispersity of milk powders obtained from milks with the 10% and 15% additions of whey and rennet coagulation time (RCT), heat and alcohol stability of the reconstituted milk were studied. The change in the proportion between casein and whey proteins in modified milk powders was found to increase the denaturation degree of β-lactoglobulin. With an increase of the whey addition, the heat and alcohol stability decreased, and solubility index and dispersity of modified milk powders increased. The effect of whey addition on RCT of modified milk powders was different. The correlation (r = -0.99) was found between RCT and weight ratio of calcium to casein nitrogen.

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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.