Ultrafiltration (UF) is a selective separation step used to both concentrate and purify components of medium to high molecular weight, such as plant and dairy proteins, carbohydrates, and enzymes.
In 1850, Thomas Graham, a chemist in Glasgow, Scotland, demonstrated diffusion of gases across a semipermeable membrane, and in 1861, he reported his first dialysis experiments, which allowed separation of dissolved substances or removal of water from solutions through synthetic semipermeable membranes…