How to apply membrane ultrafiltration to the production of soy protein isolate? What is the impact on product quality and cost?

The separation of soybean protein by membrane ultrafiltration is better than that by alkali dissolution and acid precipitation, with high protein content and low ash content. Membrane ultrafiltration has incomparable advantages over traditional separation operations, such as no phase change, low energy consumption, simple process equipment, convenient and reliable operation, good separation effect and no environmental pollution. However, due to the high viscosity of soy protein isolate solution, serious membrane pollution and high comprehensive production cost of soy protein, it is difficult to produce universal soy protein isolate by membrane ultrafiltration technology.