METAL SORPTION CAPACITY OF FIBRE PREPARATIONS FROM FRUIT POMACE

Chemical composition of dietary fibre was investigated and fractional composition of the fibre obtained from black currant and apple pomaces was determined by van Soest and Asp methods. The contents of macroelements (Ca, Mg) and microelements (Fe, Zn, Cu) as well as toxic elements (Cd, Pb) in the preparations were also investigated. Sorption of the chosen metals (Cd, Pb, Ca and Mg) on black currant preparation and black currant-apple pomaces composition were determined. The investigated materials were found to have a high content of dietary fibre (ca. 60 %) meeting the requirements for the content of toxic metals in foodstuff. The fibre preparations efficiently bound cadmium (> 30 %) and lead (> 40 %), but had very low capacity for calcium adsorption. The desorption of magnesium and calcium occured from the fibre under certain conditions.

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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.