Method for preparing abalone harslet polysaccharide powder for removing proteins and heavy metals

Abstract

The invention discloses a method for preparing abalone harslet polysaccharide powder for removing proteins and heavy metals. The method comprises the following steps: preparing an abalone harslet polysaccharide crude solution, performing enzymolysis, performing low-temperature treatment, performing plate and frame filtration, performing ethanol treatment, performing resin adsorption and performing vacuum freeze drying. According to the method disclosed by the invention, the aim of removing proteins and heavy metals can be achieved during preparation of the abalone harslet polysaccharide, the protein removal rate is more than or equal to 90 percent, the removal rates of heavy metals such as arsenic, cadmium, lead and nickel are respectively more than or equal to 94 percent, more than or equal to 98 percent, more than or equal to 88 percent and more than or equal to 90 percent, the finally obtained abalone harslet polysaccharide powder has high purity, protein content of less than or equal to 10 percent and moisture content of less than or equal to 5 percent, and the safety of the product can be fully guaranteed. In addition, temperature in the whole preparation process does not exceed 80 DEG C, the activity of the polysaccharide can be remained to the greatest degree, and the method is simple, easy to operate, low in equipment requirement, low in cost and suitable for industrial application.

Description

technical field [0001] The invention belongs to the technical field of seafood research, and in particular relates to a method for preparing abalone viscera polysaccharide powder for removing protein and heavy metals. Background technique [0002] my country is rich in marine resources and has excellent conditions for aquaculture. It is the largest abalone-raising country in the world. Abalone’s stomach and feet are rich in protein, calcium, iron, vitamin A and other nutrients, and have the effects of destroying cancer cells, balancing blood pressure, nourishing yin and clearing heat, and improving eyesight. Favored by consumers at home and abroad, the market demand is also increasing day by day. [0003] Under normal circumstances, abalone is processed and eaten mainly with gastropods, and the abalone viscera, which accounts for 1 / 3 of the dry weight of abalone, is directly discarded, seriously polluting the environment. Studies have shown that abalone organs and tissues ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a preparation method of abalone viscera polysaccharide powder for removing protein and heavy metals, which can effectively remove protein and heavy metals arsenic, lead, cadmium and nickel in polysaccharides, and solve the existing problems in the preparation process of polysaccharides. Problems such as heavy metals and high protein content, the polysaccharide powder produced by it has high purity, low technical cost, simple operation and easy popularization and application

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