Membrane filtration is a sustainable process technology to purify plant protein ingredients and to obtain high functional protein isolates. The use of membrane filtration as an alternative to traditional acid precipitation to produce plant protein isolates solves the issue of using strong acids and bases in the production process. This all-water process produces plant isolates of high purity and high functionality. However, the overall sustainability of the process is limited by the excessive fouling of the membranes, which results in limited running times and relatively high water use to clean the membranes. In this presentation we will focus on the underlying mechanisms of fouling in membrane filtration of plant ingredients. Speaker: Fred van de Velde, PhD