Method for obtaining high-molecular biologically active immunomodulating polysaccharides from saccharomyces cerevisiae yeast

摘要

The invention relates to a method for obtaining high molecular biologically active immumodulating polysaccharide from Saccharomyces cerevisiae yeast. In a first step, the yeast cells are mechanically disintegrated under the effect of shear forces in such a way that the cell walls are separated from the inner part of the cell. In a second step, the cell wall material obtained is purified and dried. The cell wall material is then subjected to enzymatic digestion in a third step and the aqueous insoluble glucan thus formed is obtained as a solid by centrifugation and the aqueous soluble mannan is obtained in the supernatant. Said method makes it possible to obtain high yields of glucan and mannan with intact native structure.