BIOAVAILABILITY OF SOME MACROELEMENTS FROM POST-ULTRAFILTRATION PERMEATES AND WHEY

The bioavailability of calcium, phosphorus and magnesium from post-ultrafiltration permeates and whey obtained during curd cheese production was determined. The bioavailability of mineral components was expressed with the co-efficients of apparent absorption (A) and retention (R). Dietary studies on rats indicated a high bioavailability of calcium and phosphorus from post-ultrafiltration permeates and whey. Diets containing acid permeate showed significantly higher calcium and phosphorus absorption and retention values. Acid-rennet (ARP) and acid (AP) permeates and acid-rennet whey (ARW) are considered poor sources of bioavailable magnesium. Among the analysed by-products, the acid-rennet whey (ARW) exhibited the most advantageous magnesium apparent absorption and retention values. Acid-rennet whey (ARW), as well as acid-rennet (ARP) and acid (AP) permeates can be used as a valuable component of many food products.

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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.