1. Faculty of Food Sciences and Nutrition; Poznań University of Life Sciences; Wojska Polskiego 28 60-637 Poznań Poland
2. Fats and Oils Department; National Research Centre; 33 El Buhouth St. Dokki 12622 Cairo Egypt
3. Faculty of Food Sciences; Warsaw University of Life Sciences - SGGW; Nowoursynowska 159 02-776 Warsaw Poland