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 provides a preparation method of Astragalus polysaccharide-iron. The method comprises the following steps: 1, extracting and purifying Astragalus polysaccharides; and 2, preparing Astragalus polysaccharide-iron: dissolving the purified Astragalus polysaccharides obtained in step 1, sodium tartrate and sodium carbonate in distilled water according to a weight ratio of 15:3:5, adding an iron salt solution with the weight 0.8-0.9 times the weight of the pure Astragalus polysaccharides to obtain a solution A, allowing the solution A to go through an exchange column loaded with basic ion exchange resin at a flow velocity of 3-8BV / h, reacting for 0.5-1h, cooling the obtained reaction product, filtering resin, flushing the surface of the resin with deionized water 3-5 times, carrying out alcohol precipitation with ethanol with the concentration of 75-85%, and drying the obtained precipitate at 50-70DEG C to obtain the Astragalus polysaccharide-iron. An ion exchange resin technology is adopted to catalyze preparation of a complex from Astragalus polysaccharide and iron, the method is novel, and the prepared Astragalus polysaccharide-iron has high purity and high content, has an iron supplementing function, and also has a piglet immunity enhancing effect.

The invention relates to a polysaccharide iron complex separating and purifying method. The method can effectively purify a polysaccharide iron complex, effectively remove impurities of chloride and heavy metals in the polysaccharide iron complex to improve the purity and drug use safety of the polysaccharide iron complex; and the method is low in cost, simple in process and easy in industrialization production.

The invention discloses a preparation method and applications of rice bran polysaccharide iron, and belongs to the technical field of polysaccharide. The preparation method comprises following steps:rice bran polysaccharide is dissolved in an acetic acid solution so as to obtain a rice bran polysaccharide acetic acid solution; ferric trichloride hexahydrate crystals are dissolved in the rice branpolysaccharide acetic acid solution so as to obtain a film casting solution; the film casting solution is poured onto a glass plate for natural curtain coating film forming and drying so as to obtaina rice bran polysaccharide composite film; the rice bran polysaccharide composite film is immersed in an alkaline solution for standing, and washing and drying are carried out so as to obtain rice bran polysaccharide iron. The rice bran polysaccharide iron can be taken as an iron supplementation agent, or a gene carrier. The rice bran polysaccharide iron is prepared using the preparation method,and is used in preparation of iron supplementation agents and gene carriers effectively, so that defects of conventional iron supplementation agents such as low bioavailability, low absorption efficiency, and large side effect are avoided, and the defects of conventional non-virus gene carriers such as high cytotoxicity are avoided.

The invention relates to the technical field of storage and transportation of salt in food, in particular to an application of a tea polysaccharide-iron compound as an anticaking agent for salt. The tea polysaccharide-iron compound obtained through a reaction of the tea polysaccharide and ferric trichloride is natural, toxic-free and good in water solubility, has biological activity, is beneficial to organisms and can be absorbed and used. The salt after addition of the tea polysaccharide-iron compound is uniform in particle distribution and good in dispersity and can be prevented from caking in long-term storage and transportation processes.

The invention relates to a method for removing sodium chloride from cassava starch polysaccharide-iron complex liquid. The method comprises the following steps: A, adding cassava starch and water intoa reaction kettle, heating and regulating pH value, adding hydrogen peroxide solution to degrade the cassava starch, so as to obtain oligosaccharide solution with the weight-average molecular weightof 3-27KDa, then adding ferric trichloride solution and alkali, and carrying out complex reaction, so that cassava starch polysaccharide iron liquid is obtained; B, carrying out ultrafiltration on thecassava starch polysaccharide iron liquid obtained in the step A, and intercepting micromolecular cassava starch polysaccharide iron complex with the molecular weight of 2.5-200KDa to remove part ofsodium chloride; C, carrying out nanofiltration on permeate liquid obtained in the step B, and intercepting micromolecular cassava starch polysaccharide iron complex with the molecular weight of 200 Da by virtue of a nanofiltration membrane to remove sodium chloride; and D, mixing interception liquids obtained in the steps B and C, and carrying out spray drying, so that solid cassava starch polysaccharide iron complex is obtained, and nanofiltration permeate liquid can be directly discharged. The method provided by the invention has the advantages that technology is simple, energy conservationand environmental protection are realized, conditions are mild, and continuous production can be easily realized; concentration of sodium chloride in the cassava starch polysaccharide-iron complex liquid can be lowered; and recovery rate of the cassava starch polysaccharide iron complex is higher than 99%; and removal rate of sodium chloride is higher than 98%.

The invention discloses a citrus peel polyferose (III) compound. The invention also discloses a preparation method of the citrus peel polyferose (III) compound. The preparation method comprises the following steps: treating raw materials, preparing citrus peel polyferose, and preparing citrus peel polyferose (III). The invention has the beneficial effects that: firstly, the citrus peel polysaccharide and the iron (III) have good complexing capacity, and the polyferose (III) compound belongs to one of organic iron, has proper coordination stability when being used as an iron supplementing agent, and also has very small irritation to gastrointestinal tracts; secondly, the citrus peel polyferose (III) compound enters the body, after iron is released, citrus peel polysaccharide continues to exert the effects of enhancing intestinal peristalsis, oxidation resistance and the like, citrus peel residues are used for preparing the citrus peel polyferose (III) compound, the raw materials are rich, and the citrus peel polyferose (III) compound can be used for functional food, drugs and health care products, and has good development prospects.

The invention discloses a microbial enrichment preparation method of a hypha-based doped supercapacitor material, which comprises the following steps: preparing a liquid culture medium, inoculating afungus strain into the liquid culture medium, and carrying out shake culture; adding a polysaccharide-iron complex and a carboxymethyl chitosan-iron complex into a liquid culture medium in the form ofa solution or a dispersion liquid, continuously culturing, pouring out the redundant liquid culture medium, cleaning with deionized water, carrying out freeze drying, calcining the dried sample in anN2 atmosphere, and naturally cooling; adding the pyrolysis product into an H2SO4 solution, stirring and refluxing, then centrifugally collecting, washing with deionized water to be neutral, carryingout vacuum drying, and calcining the material subjected to vacuum drying again in an NH3 atmosphere; and obtaining the hypha-based doped supercapacitor material. The hypha-based doped supercapacitor material disclosed by the invention is high in specific surface area and high in iron doping amount,and the material has good capacitance performance and can be widely applied to the fields of energy storage, catalysis, environmental protection and the like.

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.

The invention discloses a starch polysaccharide-iron compound preparation. The starch polysaccharide-iron compound preparation is characterized in that the starch polysaccharide-iron compound preparation is prepared by combining starch polysaccharide-iron, calcium carbonate, casein phosphopeptides and vitamin C together according to a certain proportion. The starch polysaccharide-iron compound preparation has the advantages of reasonable composition and high absorption ratio of iron and calcium, has the effects of treating the iron-deficiency anemia and supplementing calcium, and is particularly applicable to pregnant women, children, old people and other crowds tending to suffer from iron-deficiency anemia and calcium deficiency.