Depot effect of bioactive components in experimental membrane filtrations

INERA Workshop 2016: Membrane and Liquid Crystal Nanostructures

Mitev, D.^1 ; Peshev, D.^2 ; Peev, G.^2 ; Peeva, L.^3

REGPOT-2012-2013-1 NMP INERA Project, Institute of Solid State Physics-BAS, 72 Tzarigradsko Chaussee Blvd., Sofia

1784, Bulgaria^1

University of Chemical Technology and Metallurgy, Department of Chemical Engineering, 8 Kl. Ohridsky Blvd., Sofia

1756, Bulgaria^2

Chemical Engineering and Chemical Technology, Imperial College London, Exhibition Road, London

SW7 2AZ, United Kingdom^3

关键词: Bioactive components;    Chlorogenic acids;    Feasibility tests;    Membrane filtrations;    Membrane matrix;    Membrane screenings;    Membrane separation process;    Solution filtration;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/780/1/012005/pdf
DOI  :  10.1088/1742-6596/780/1/012005

来源: IOP

【 摘 要 】

Depot effects were found to be accompanying phenomena of membrane separation processes. Accumulation of target species in the membrane matrix during feasibility tests can hamper proper conclusions or compromise the filtration results. Therefore, we investigated the effects of delayed membrane release of chlorogenic acid and caffeine, considered as key compounds of interest in spent coffee products' recovery treatment. Permeate fluxes and key components release were studied in course of 24 hours via nanofiltration of pure solvent, both immediately after the mock solution filtration and after idle stay. Conclusions are drawn and recommendations advised for proper analysis of experimental data on membrane screening.