MARIYA DUSHKOVA1; ANGEL DINCHEV1; KIRIL MIHALEV1; MILENA MITEVA-PETROVA2; STOYKO PETROV2
1 University of Food Technologies, BG-4002 Plovdiv, Bulgaria
2 University “Prof. Dr. Asen Zlatarov, BG-8010 Burgas, Bulgaria
Dushkova, M., A. Dinchev, K. Mihalev, M. Miteva-Petrova a nd S. Petrov, 2017. Multifactorial modeling of the flux during ultrafi ltration of strawberry extract. Bulg. J. Agric. Sci., 23 (1): 165–170
Combined effects of working pressure, volume reduction ratio and feed fl ow rate on the fl ux during ultrafi ltration of strawberry extract were studied depending on the molecular weight cut-off (1, 10 and 25 kDa) of polyacrylonitrile membranes. The mathematical models and response surfaces obtained demonstrate the highest flux values at high levels of working pressure and feed fl ow rate and low level of volume reduction ratio.