56 results about "Polysaccharide iron" patented technology

The present invention discloses a method for purifying polysaccharide iron complex, in particular to a method for desalination and concentration of the crude aqueous polysaccharide iron complex with the ultrafiltration membrane separation technology. Specific methods include the following steps of filtering the crude aqueous polysaccharide iron complex with ultrafiltration membrane components, whereby the pore diameter of ultrafiltration membrane components is between 2 and 50nm and molecular weight cutoff is between 5K and 150KDa; intercepting the polysaccharide iron complex by the ultrafiltration membrane, continuously discharging the sodium chloride and free iron ions in the crude aqueous solution through the osmotic solution to improve the purity and the concentration of polysaccharide iron complex in the ultrafiltration retentate liquid. The method for desalination and concentration of the crude aqueous polysaccharide iron complex with the ultrafiltration membrane provided by the invention has the following advantages of 1. simple operation process, safety and energy saving, mild condition and easy for continuous production; 2. reducing the salt concentration in the aqueous polysaccharide iron complex, and increasing the concentration of polysaccharide iron with recovery rate of more than 95%.

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.