THE EFFECT OF SELECTED CRYOPROTECTANTS ON THE PROPERTIES OF FROZEN PORK.

The effect of Polydextrose®, sorbitol and Abise S90 containing carrageens, on functional properties of frozen (t = -25°C) minced pork during 120 days of storage was compared. The solubility of proteins, emulsifying capacity (EC), thermal stability of emulsions (TSE), water holding capacity (WHC) and the amount of frozen-out water were analysed. It was found that the tested cryoprotectants affect, to different extent the analysed quality indices of frozen meat. Polydextrose® and sorbitol have a substantial effect on the decrease of the amount of frozen-out water (by 7% at t = -25^oC). However, contrary to Abise S90, they do not affect water holding capacity. Sorbitol and Abise S90 stabilize the solubility of proteins, while Polydextrose does not. Sorbitol and Polydextrose®, contrary to Abise S90, enable maintaining a high emulsifying capacity. In general, it was found that none of the tested cryoprotectants protected at the same time all properties of frozen pork.

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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.