Method for preparing fungal polysaccharide

Abstract

The invention discloses a method for preparing fungi polysaccharide, namely a multi-stage dissolvent-cycle dynamic-thermal-reflux extraction condensation method. The method comprises the technological steps of raw material crushing, mixing with a solvent, extraction, condensation, deposition in alcohol, filtering and drying so as to obtain a finished product. The method for preparing fungi polysaccharide integrates extraction, condensation, solvent recovery and the like together, and is completely carried out in an enclosed system, without any bad occurrence of escaping, steaming, leakage and dripping, etc. The production practice shows that the method can shorten the extraction cycle by 50 percent to 85 percent so as to improve the production rate; the ration between raw material to solvent can be reduced to 1:3-8 (as the traditional method has a ration between raw material and solvent higher than 1:20), and the amount of an extractant used can also be saved by 25 percent to 80 percent; primary / secondary steam can be put into fullplay and cooling water is saved so that the effect of energy conservation is very significant. Compared with the traditional method, the method can save 30 percent to 70 percent of steam amount; and the medical material does not need to be crushed finely, which is favorable to the further operation. The method can be largely applied to the development and production of the fungi polysaccharide and other related polysaccharides or natural medical materials.

Description

technical field [0001] The invention relates to a method for preparing fungal polysaccharides. Background technique [0002] Internationally, edible and medicinal fungal polysaccharides are called "biological response modifiers" (Biological Response Modifier, referred to as BRM). In recent years, with the continuous emergence of new technologies and methods in biochemistry, bioengineering, and biopolymer research, the research on polysaccharides of edible and medicinal fungi has developed rapidly at home and abroad. At present, edible and medicinal fungal polysaccharides have become one of the research hotspots in the fields of biochemistry, molecular biology, medicine, pharmacy, and food science. Although people have conducted extensive and in-depth research on the structure, biological activity, and pharmacological functions of fungal polysaccharides, how to efficiently prepare fungal polysaccharides has not attracted much attention. At present, the preparation methods o...

AI Technical Summary

Problems solved by technology

In the production process, it will cause a great waste of energy and funds. For example, when using hot water for extraction, the hot water will continue to evaporate from the tank during the heating process, which requires us to keep replenishing water and Heating, so that a large amount of solvents and energy are wasted; Another example is when using organic solvents (such as alcohol, acetone) to extract, along with the continuous volatilization of organic solvents, it will cause even greater waste of resources and environmental pollution

In short, these methods generally have the disadvantages of continuous operation that cannot realize leaching and concentration, low energy utilization rate, large amount of solvent consumption, high loss, long production cycle and low production efficiency, and may also cause environmental pollution in some cases. Pollution; it is difficult to meet the requirements of national GMP standards