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Compared with the traditional evaporation process, ultrafiltration process can get higher solid content, at the same time can save energy, and can achieve cleaner production.
The introduction of advanced membrane separation technology can effectively improve the separation capacity, increase the protein content, reducing the proportion of moisture in the bean dregs. Ceramic membrane can effectively meet process requirements,which can make solids content up to 25%.
However,whey wastewater from SPI production has become a common constraint in the deep processing of soybeans. The use of membrane separation technology can effectively control the environmental pollution, recycle recoverable whey protein from whey wastewater which brings a new economic growth to soybean factories.
Soy oligosaccharides are the main by-products of soybean food processing, which are abundant in the supernatant after the production of soy protein isolate. To recover soy oligosaccharides, nanofiltration can get more satisfactory results.
Ceramic membrane separation process is applied to the separation and purification of soybean active peptides by the fermentation method. The permeate is clear and transparent and has an orange-red color. The vast majority of bacteria in the fermentation liquid and the insoluble macromolecule proteins and colloid are entrapped and removed. Permeate without sediment phenomenon is realized for a long time. At the same time, the method of continuously adding dialysis water can collect effective dissolved components in the raw material liquid as much as possible so that the yield of the soluble polypeptide reaches more than 95%.
The raw material of DPS is animal intestinal mucosa.
The small intestine of fresh animal in the slaughterhouse will scrape the small intestine content (mucous membrane) when it is processed into semi-finished sausage casing, and the intestinal mucosa is mainly used to extract heparin sodium. The intestinal mucosa after extracting heparin sodium is the raw material for the processing of intestinal membrane protein.