Preparation method of cassava polysaccharide iron

Abstract

The invention relates to a method for preparing cassava polysaccharide iron. The method is to oxidize and degrade cassava starch with hydrogen oxide to obtain an applicable oligosaccharide solution, and then add ferric chloride and sodium hydroxide solution dropwise to perform a complex reaction to obtain cassava polysaccharide. The iron synthesis solution is then filtered to remove water-insoluble impurities to obtain cassava polysaccharide iron solution, which is then desalinated and concentrated by ultrafiltration membrane technology, spray dried or vacuum evaporated, dried and crushed, and finally cassava polysaccharide iron products are obtained. The present invention uses hydrogen peroxide to oxidize and degrade cassava starch to replace the previous acid or enzymatic degradation process, which not only can significantly reduce the generation of by-product glucose than the acid method, obtain a higher yield of applicable oligosaccharides, and is more efficient than the enzymatic method. The degradation time is greatly shortened, thereby reducing production costs; it also replaces the previous ethanol or methanol solvent method to remove sodium chloride, avoids the use of flammable and explosive materials such as ethanol or methanol, and eliminates hidden dangers in production safety. The cassava polysaccharide iron prepared by the invention can be used as an iron supplement for poultry and livestock.

Description

technical field [0001] The invention relates to a synthesis method of a polysaccharide iron complex, in particular to a synthesis process for preparing cassava polysaccharide iron from starch, which belongs to the field of fine chemicals. Background technique [0002] Iron deficiency anemia is a common, worldwide nutritional disease that faces both humans and the animal kingdom. Taking iron supplements is an effective way to solve the problem of iron deficiency anemia. It is a long process for human beings to fight against iron deficiency anemia. The development of iron supplements has gone through three stages. The first generation of iron supplements is an inorganic acid iron salt represented by ferrous sulfate. The second generation of iron supplements The supplement is an organic acid iron salt represented by ferrous citrate, and the third-generation iron supplement is an organic iron complex represented by iron dextran and iron methionine. [0003] Polysaccharides are...

AI Technical Summary

Problems solved by technology

Acid degradation of starch is simple and easy to operate, but it consumes a lot of acid. After the degradation is completed, neutralizing the acid with alkali will produce more salt and increase the cost of subsequent desalination. The bigger defect is This method has poor selectivity for degrading starch, resulting in low yield of the target product - suitable oligosaccharides, and more glucose by-products, which affects the purity of the product; while enzymatic degradation of starch, although its selectivity is much better than the acid method, it is not enough. The disadvantage is that the operation steps of this method are complicated, especially the degradation time is as long as more than 6 hours, the production efficiency is low, and the cost is high

The ethanol or methanol used in the solvent process is a flammable and explosive dangerous chemical, which has hidden dangers in production safety, and methanol is very poisonous to the human body

In addition, in the production process, the amount of ethanol or methanol required is relatively large, the loss of raw materials is also large, and the cost of ethanol or methanol recovery is relatively high.

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