7 results about "Iron chelate" patented technology

This invention relates to the field of biomedical technology, providing a phosphorylated peptide iron chelate of Yanbian cattle hemoglobin, its preparation method, and its applications. The Yanbian cattle hemoglobin phosphorylated peptide iron chelate is prepared from Yanbian cattle blood through enzymatic hydrolysis, phosphorylation, and iron chelation. Specifically, the phosphorylation step actively introduces strongly negatively charged phosphate groups into the Yanbian cattle hemoglobin peptide chain, serving as new and stronger metal ion coordination sites, thereby specifically enhancing its chelating ability for ferrous ions and the stability of the complex. The Yanbian cattle hemoglobin phosphorylated peptide iron chelate possesses high iron content and good gastrointestinal stability, showing broad application prospects in the preparation of a new generation of highly efficient and low-irritant iron supplements.

The invention belongs to the technical field of functional food, and particularly relates to a donkey-hide gelatin peptide-iron chelate preparation and a preparation method thereof. The preparation method comprises the following steps: adding colla corii asini powder into water, and melting by heat to obtain a colla corii asini stock solution; adding protease into the colla corii asini stock solution for enzymolysis to obtain colla corii asini enzymatic hydrolysate; bOC-L-cysteine-curcumin, tetrabutylammonium bromide and iodine are added into the colla corii asini enzymatic hydrolysate, a sodium hydroxide solution with the concentration of 0.1 mol / L is adopted for adjusting the pH value, then a reaction is conducted, and a colla corii asini enzymatic hydrolysate retreatment solution is prepared; ascorbic acid is added into the donkey-hide gelatin enzymolysis retreatment liquid, the pH is adjusted with a 10% hydrochloric acid solution, then ferrous chloride is added, centrifugation is carried out after chelation, nanofiltration treatment is carried out, and a nanofiltration concentrated solution is a donkey-hide gelatin peptide-iron chelate; and uniformly stirring and mixing the colla corii asini peptide-iron chelate and genkwanin to obtain the colla corii asini peptide-iron chelate

The application discloses a kind of hydroxyl methionine chelate and its preparation method and application, chelate can be made animal feed additive and nutrient agent, for binuclear chelate system, chelate structure A and chelate structure B include central iron ion and hydroxyl methionine ligand;The carbonyl positive coordination connection of central iron ion of chelate structure A is connected with the hydroxyl methionine ligand of chelate structure B;Preparation method includes: hydroxyl methionine is dissolved, and ligand neutralizing liquid is prepared;S2, ligand neutralizing liquid is mixed with ferrous chloride tetrahydrate solution uniformly, and reaction is complete.The hydroxyl methionine iron chelate of the application is strong in stability, can keep the biological activity of iron in complex chyme environment, can avoid absorption antagonism with manganese, copper and other trace elements, optimizes overall mineral utilization efficiency, significantly improves the absorption rate of animal, preparation condition is mild, cost is controllable, compatible with existing feed production line, and industrialization prospect is good.

The present invention relates to a sulfur denitrification agent using sulfur-containing wastes, which can be recycled as a denitrification agent for water treatment by using discarded mine drainage sludge, sulfur-containing wastes generated in a hydrogen sulfide removal process, and the like. The sulfur denitrification agent using sulfur-containing wastes of the present invention includes, on the basis of the total weight, 50-70 wt% of mine drainage sludge, 15-30 wt% of waste iron sulfide generated in a hydrogen sulfide removal process, and 15-30 wt% of sulfur powder, wherein as the sulfur powder, sulfur generated in a desulfurization process is used, and the sulfur generated in the desulfurization process is sulfur sludge generated in the desulfurization process using iron chelate (Fe-chelate) or sulfur-containing wastes generated in a bio-sulfur treatment process.

The invention discloses a preparation method of a salty-taste-enhanced ferrous chelate special for low-sodium food, and belongs to the technical field of food nutrition enhancement and vegetable protein deep processing. Red bean protein serves as a raw material, salty-taste-enhanced red bean protein zymolyte with the molecular weight ranging from one thousand Daltons to three thousand Daltons and rich in glutamic acid and aspartic acid is prepared through directional enzymolysis of alkaline protease, a stable three-dimensional cross-linking chelation system is constructed with carboxyl bidentate coordination as a core mode, and the salty-taste-enhanced red bean protein zymolyte with the molecular weight ranging from one thousand Daltons to three thousand Daltons is obtained. And preparing to obtain the difunctional ferrous chelate. Under the optimal process, the ferrous ion chelation rate reaches 67.49%, the chelate has excellent stability under the conditions of weak acidity, high salt and hot processing, metal peculiar smell of ferrous ions can be effectively masked, meanwhile, the salty taste and umami taste characteristics of red bean peptide are reserved, the double functions of iron nutrition enhancement and salty taste enhancement are achieved, and the chelate is suitable for being used in the field of food processing. And a technical support is provided for high-value utilization of the red bean protein and development of a novel bifunctional iron enhancer.

The invention belongs to the technical field of biological medicine. The invention relates to a collagen peptide, in particular to collagen peptide and preparation and application of an iron chelate thereof. The preparation method of the collagen peptide comprises the following steps: step A, cleaning fish skin without fish scales, cutting the fish skin into pieces, sequentially performing degreasing and impurity protein removal, adding sterile water into the fish skin, and performing pulping so as to obtain slurry; and step B, adding protease and 1-10w / w% sea buckthorn pomace fermentation liquor into the pulp, carrying out enzymolysis for 60-180 minutes, centrifuging, taking supernate, and carrying out ultrafiltration to obtain the collagen peptide. The collagen peptide with high Fe < 2 + > chelating activity is obtained from the tilapia skin by adopting a mode of sea-buckthorn fermentation liquor assisted enzymolysis, and the raw materials adopted by the whole process are all from agricultural processing byproducts, so that the method is more green and efficient. The invention further provides a collagen peptide-Fe conjugate, and the collagen peptide-Fe conjugate has good stability and is wide in application.

The invention relates to a pyrite autotrophic denitrification system and process for sewage treatment, and the system comprises a denitrification tank and an electrochemical system capable of applying an electric field into the denitrification tank; a composite filler layer is laid in the denitrification tank, and the composite filler layer comprises a porous filter material modified by pyrite and ferric iron chelate; the porous filter material can slowly release ferric iron chelate; autotrophic denitrification microorganisms are inoculated in the composite filler layer; after nitrogen-containing wastewater is introduced into the denitrification tank, the electrochemical system can intermittently provide an external electric field for the denitrification tank, so that the oxidation-reduction potential in the denitrification tank is kept at + 200 to + 250 mV in a staged manner; the external electric field can drive the pyrite to be dissolved; meanwhile, the slow-released ferric iron chelate can promote the dissolution of the pyrite. The method has the beneficial effect that nitrate and nitrite in the low-carbon-nitrogen-ratio wastewater are efficiently and stably removed.