11 results about "Polysaccharide iron" patented technology

The invention belongs to the technical field of food, and discloses a red date polysaccharide-iron compound and a preparation method thereof, and the compound comprises the following components by weight: 1-5 parts of red date polysaccharide; 5-20 parts by weight of a complexing agent; 15-30 parts by weight of a ferric iron compound; 5-15 parts by weight of alkali; and 200 to 300 parts by weight of deionized water. The red date polysaccharide-iron compound prepared by the invention has good dissolution performance, high stability and good solubility, and compared with a traditional iron supplementing agent, the red date polysaccharide-iron compound is more easily absorbed by an organism. In addition, the red date polysaccharide-iron compound has antioxidant activity in vitro. The preparation process is simple, the raw materials are rich in source, and the traditional Chinese medicine composition can be used for preventing or treating iron-deficiency anemia and provides a new choice for a novel iron supplementing agent.

The invention discloses a preparation method of a zymosan iron compound, and belongs to the technical field of deep processing of yeast. The method comprises the following steps: oxidizing a zymosan solution with hydrogen peroxide, sequentially adding sodium citrate and ferric salt, and carrying out complexation reaction to obtain zymosan iron. The iron content of the polyferose prepared by the method is more than or equal to 10%, the water solubility is more than or equal to 90%, and the polyferose has good stability and no rust flavor. Due to the slow release characteristic, gastrointestinal stimulation can be remarkably reduced, continuous release in the stomach is achieved, liver iron accumulation can be effectively improved, and tissue utilization and storage of iron are promoted.

The invention relates to the technical field of rubber, and particularly discloses application of astragalus polyferose as a carboxyl nitrile rubber functional aid. Astragalus polyferose is used as a multifunctional additive to be compounded with carboxylic butadiene-acrylonitrile latex, and the mechanical property of the adhesive film is enhanced through coordination of iron ions and rubber carboxyl and hydrogen bond synergy of polysaccharide hydroxyl and carboxyl; the material is endowed with excellent antibacterial property by utilizing a synergistic mechanism of astragalus polysaccharide and iron ions; and the thermo-oxidative aging and degradation process of the rubber material is accelerated by virtue of the efficient catalytic oxidation effect of iron ions on rubber molecular chains. According to the scheme, the problems that a traditional auxiliary agent is single in function and comprehensive performance cannot be synergistically improved are successfully solved, the environment degradability of the rubber is remarkably improved while the good mechanical and antibacterial performance of the rubber is kept, and an innovative and practical technical path is provided for achieving high-performance environment-friendly carboxy nitrile rubber products.

The invention discloses a low-cost cassava polyferose synthesis method which comprises the following steps: S11, preparation of cassava starch hydrolysate: adding cassava starch into water, adding hydrochloric acid for reaction, and adding a sodium hydroxide solution for reaction after the reaction is finished to obtain hydrolysate; s12, preparation of ferric sulfate: dissolving ferrous sulfate heptahydrate with water, adding hydrogen peroxide for reaction, and obtaining a ferric sulfate solution after the reaction is finished; s13, preparation of cassava polysaccharide iron: taking the hydrolysate obtained in the step S11 and water, adjusting the pH value to 9-13, continuously stirring for reaction, and adding the ferric sulfate solution obtained in the step S12 for reaction to obtain a reaction solution; and S14, purification of the polyferose: carrying out dialysis or membrane treatment on the reaction liquid prepared in the step S13, and drying to obtain the polyferose. The cassava polyferose prepared by the invention has no irritation to the kidney and gastrointestinal tract of an organism, the binding stability of polysaccharide and iron ions is improved, the storage performance of the polyferose is improved, and the content of sulfate ions is less than or equal to 0.3%.

The invention relates to a biological metabolism regulator based on radix paeoniae alba polysaccharide iron and a preparation method and application thereof.The preparation method comprises the following steps that radix paeoniae alba polysaccharide and trisodium citrate are completely dissolved in pure water, a ferric trichloride solution is slowly added under magnetic stirring, a sodium hydroxide solution is dropwise added at the same time, after the reaction is completed, centrifugation is conducted, and supernatant is obtained; and adding absolute ethyl alcohol to separate out the radix paeoniae alba polyferose. Centrifuging to take precipitate, repeating for three times, and dissolving with pure water; and dialyzing the solution with deionized water, then adding absolute ethyl alcohol for precipitation and centrifugation, repeating for three times, and freeze-drying to obtain the radix paeoniae alba polyferose product. The product can stably reach the intestinal tract in a targeted mode, remove ROS in the intestinal tract and regulate glycometabolism of macrophages, so that polarization typing of the macrophages is changed, the anti-inflammatory effect is achieved, and new possibility is provided for treatment of the inflammatory bowel disease. Animal experiments prove that the radix paeoniae alba polyferose enteric capsule has a better and more stable comprehensive treatment effect on mice with inflammatory bowel diseases than a radix paeoniae alba polyferose solution.

The invention discloses a kind of polysaccharide iron identification method, comprise the steps:1) decomplexation, polysaccharide iron test sample is dissolved in water, adds phosphate decomplexation, precipitates, and takes supernatant;2) hydrolysis, takes step 1) in supernatant, with acid adjustment pH to acidity, heating is hydrolyzed, after the completion of hydrolysis, cooling, with alkali adjustment pH to 4 6, filters, and obtains polysaccharide acid solution;3) polysaccharide end group detection in polysaccharide iron, is detected using Agilent high performance liquid chromatograph, using the mixed solution of the polysaccharide sodium of glucose, corresponding polysaccharide iron as reference substance, detection step 2) whether the relative retention time of the polysaccharide acid sodium in hydrolysis solution is consistent with that in reference substance, to determine the polysaccharide acid category of polysaccharide iron;4) molecular weight determination of polysaccharide in polysaccharide iron. Using high performance liquid chromatography to determine the molecular weight and the R group of polysaccharide in polysaccharide iron, the purpose of differentiating the specific kind structure of polysaccharide is finally reached.

A Panax notoginseng polysaccharide iron nanoparticle preparation, its preparation method, and its application are disclosed. This invention can effectively prepare Panax notoginseng polysaccharide iron nanoparticles, solving the application problem in the preparation of drugs for treating iron deficiency anemia, inflammatory bowel disease-related anemia, iron deficiency anemia-related colitis, inflammatory anemia, or inflammatory bowel disease. The specific steps are as follows: The crude Panax notoginseng polysaccharide solution is purified using conventional purification methods to obtain purified Panax notoginseng polysaccharide. This purified polysaccharide is dissolved in ultrapure water, and an iron source is added under inert gas protection. After co-precipitation and chemical reduction reactions, the pH value is adjusted, and iron nanoparticles are loaded onto the Panax notoginseng polysaccharide to obtain Panax notoginseng polysaccharide-coated iron nanoparticles. The preparation method of this invention is simple, uses abundant raw materials, and has low production costs. It represents a major innovation in drugs for treating iron deficiency anemia and inflammatory bowel disease-related iron deficiency anemia, and has practical application value.

The application discloses a preparation method of a yeast polysaccharide iron complex and belongs to the technical field of deep processing of yeast. The steps are as follows: after a yeast polysaccharide solution is oxidized by hydrogen peroxide, sodium citrate and an iron salt are added in sequence, and the yeast polysaccharide iron is obtained through a complexation reaction. The yeast polysaccharide iron prepared by the method has an iron content of greater than or equal to 10%, a water solubility of greater than or equal to 90%, good stability and no iron rust smell. The slow-release characteristics of the yeast polysaccharide iron can significantly reduce gastrointestinal irritation, realize sustained release in the stomach, and effectively improve liver iron accumulation and promote the organization utilization and storage of iron.

This invention discloses a method for preparing highly stable soybean protein hydrolysate-polysaccharide-iron composite nanoparticles, aiming to solve the problems of high cost, harsh process conditions, and poor stability of iron fortifiers in food applications in existing technologies. The preparation method includes: dispersing soybean protein in water, adding protease for enzymatic hydrolysis for 0-12 h, inactivating the enzyme, mixing with a polysaccharide dispersion and adjusting to a specific pH, stabilizing, adding ferrous sulfate solution, allowing the reaction to proceed fully, adjusting the pH back to near neutral, and then centrifuging to collect the supernatant to obtain soybean protein hydrolysate-polysaccharide-iron composite nanoparticles with a particle size of 80-300 nm. The nanoparticles prepared in this application exhibit good binding rate, dispersibility, application stability, and bioavailability, overcoming the technical bottleneck of traditional iron fortifiers that struggle to balance bioavailability and food compatibility. They have certain application potential and value in functional iron-fortified foods and biomedicine.

The present invention discloses a preparation method of polysaccharide iron of Choerospondias axillaris, and the preparation method is as follows: prepare polysaccharide of Choerospondias axillaris from fresh pulp of Choerospondias axillaris, then conduct orthogonal experiments with the polysaccharide of Choerospondias axillaris, and finally obtain that the factor order affecting the content of Fe<supgt;3+< / supgt; in the polysaccharide iron complex is: mass ratio of polysaccharide of Choerospondias axillaris to trisodium citrate > reaction temperature > reaction time > addition amount of ferric chloride. The optimal preparation process conditions of the polysaccharide iron complex are determined as pH 8-9, reaction time 1 h, mass ratio of polysaccharide of Choerospondias axillaris CAP30 to trisodium citrate 0.5, reaction temperature 60 °C, and addition amount of 2 mol / L ferric chloride 0.6 mL. The beneficial effects of the present invention are: under the optimal synthesis process conditions, the iron content of the polysaccharide iron complex of Choerospondias axillaris is about 27.09%, which helps to improve the added value of Choerospondias axillaris, extend the deep processing industrial chain of Choerospondias axillaris, and has good application value and market prospects.

The present invention falls within the technical field of iron supplement preparation, and relates more particularly to a process for preparing and applying a supplement based on a polysaccharide-iron complex derived from Auricularia auricula-judae, intended to supplement iron, improve iron deficiency anemia and strengthen immunity, comprising the following steps: preparation of raw materials, selection of iron-rich Auricularia auricula-judae as raw material; culture and optimization, engineering modification of fermented and cultured Auricularia auricula-judae; screening and selection of Auricularia auricula-judae strains with a high iron content;The beneficial effects are as follows: by constructing gene expression vectors, transforming fungal cells, and screening and identifying transformants with high synthetic capacity, the level of expression of genes related to the generation and conversion of the iron element is increased, allowing the cultivation of Auricularia auricula-judae varieties containing higher levels of iron, in order to improve the yield and production efficiency of the polysaccharide-iron complex.