62 results about "Sulfur Amino Acids" patented technology

Nutritional supplements comprising keratin protein either in powder or liquid form as well as novel methods of producing soluble keratin proteins by oxidation are provided. In one embodiment of the disclosure, a soluble keratin protein product can be produced by treating an insoluble keratin source in an oxidizing solution at low pH and heat for a sufficient time to oxidize essentially all of the cysteine residues in the protein. By then raising the pH to the pKa of the proteins, or to the point at which the protein is present in the salt form, a solution of high molecular weight proteins that are in a low salt solution can be obtained. This solution is essentially free of peptides and salts that have an adverse effect on flavor and palatability, and maintains a high proportion of sulfur amino acids for beneficial health effects. The resulting protein product can be dissolved into water, juice, or a nutritional drink, or sprinkled on food. Alternatively, the protein can be provided as a liquid supplement.

The invention relates to a feed additive for improving quality of furs of fur-bearing animals. The feed additive contains the following ingredients in parts by weight: 8 to 12 parts of linoleic acid, 8 to 12 parts of lecithin, 3.2 to 4.2 parts of vitamin complex, 5.8 to 6.2 parts of iron chelate, 4.1 to 4.2 parts of zinc chelate, 0.28 to 0.31 part of organic selenium, 18 to 22 parts of sea algae extracts, 17 to 19 parts of sulfur-containing amino acids, 9 to 11 parts of American yeast, and 17.3 to 17.9 parts of soybean meal. The feed additive has a scientific and reasonable formula and complete and balanced nutrition, is convenient for preparation and production, is excellent in baiting property, can effectively increase feed utilization efficiency and nutrient inversion rate, promotes growth and development of fur-bearing animals, improves quality of fur-bearing animals, improves quality of furs, and is a safe and reliable feed additive for improving quality of furs of fur-bearing animals.

The invention discloses a method for preparing high-activity fly maggot protein on the basis of soybean dreg bred fly maggots and belongs to the technical field of fly maggot protein preparation. Soybean dregs are taken and preprocessed, the soybean dregs, distillers' grains and distilled water are mixed and ground, yeast powder is added, a fly maggot culture is obtained, the fly maggots are cultured, collected larvae are mixed with water and lipase after being frozen and ground, and the high-activity fly maggot protein is prepared through ultrasonic oscillating processing, dialysis and overnight and spraying and drying. The method has the advantages that preparation steps are simple, sulfur-containing amino acid in the protein is not damaged in the preparation process, the ash content of the product is low, quality of the obtained fly maggot protein is good, compared with other products, the activity is increased by 22% or above, and compared with other methods, the extraction rate is increased by 12% or above.

The invention relates to the technical field of design and synthesis of flame retardants, aims at the problems that a traditional flame retardant for PLA is low in flame retardant efficiency, large inadditive amount and not environmentally friendly, and provides a full-bio-based flame retardant, a flame-retardant PLA composite material and a preparation method thereof. The full-bio-based flame retardant has the following structural general formula: in the formula, A < + > is amino protonated biomass sulfur-containing amino acid, and n=1-12. The raw materials used by the all-bio-based flame retardant are phytic acid and sulfur-containing amino acid from biological sources, i.e., the synthesized flame retardant is the all-bio-based flame retardant, and the all-bio-based flame retardant is green in source and conforms to the theme of sustainable development at present and can relieve petroleum shortage crisis and can protect the global environment.

The invention relates to human interferon alpha derivatives and preparation and use of pegylated products thereof. The human interferon alpha derivatives are formed by bonding three amino acids to N terminals of human interferon alpha and have a structural formula of R3-R2-R1-interferon, wherein the interferon is the human interferon alpha, and a first position amino acid R1 bonded to the N terminals of the human interferon alpha is a sculpture amino acid or glycine; the second position amino R2 is an aromatic amino acid or glycine; and the third position amino acid R3 is an acidic amino acidor glycine. The invention also provides pegylated derivatives of the human interferon alpha derivatives, a preparation method thereof and use thereof in the preparation of medicaments for treating andpreventing viral infection or lung cancer. The human interferon alpha derivatives have the advantages of high specific activity and high pegylation rate. The pegylated derivatives of the human interferon alpha derivatives have the characteristics of high biological activity and no non-N terminal modified isomers and have the advantages of prolonging in-vivo half-life, reducing plasma clearance and the like.

The invention discloses a production method for planting oyster mushrooms by utilizing sesame dregs. The production method comprises the following steps of: firstly, carrying out a certain proportioning of a cultivation material, wherein the sesame dregs are 34-36% of the cultivation material, cottonseed hulls are 32-36% of the cultivation material, rice straws which are 1.5-2 cm in length are 25-27% of the cultivation material, and other auxiliary materials are 3-5%; bagging and sterilizing; mixing the cultivation material with water according to a proportion of 1:(1.3-1.5); adjusting the cultivation material till the water content is about 60% and the pH value is 7.5-8; and then, putting the cultivation material into a long plastic cylinder, wherein the long plastic cylinder is 19-21 cm in diameter and 40-45 cm in length. According to the invention, the advantages of the sesame dregs are utilized; the sesame dregs contain 23-30% of protein, wherein digestible protein is up to 20.79%; the protein contains a large number of essential amino acid and sulphur-containing amino acid; furthermore, the proportioning of amino acid is more reasonable; the sesame dregs further contain abundant calcium, phosphorus, magnesium and selenium and a plurality of vitamins; according to the characteristics of the sesame dregs, with the help of the current oyster mushroom planting technology, the proportioning of the cultivation material is changed; the sesame dregs are sufficiently utilized for planting the oyster mushrooms; and the planted oyster mushrooms are delicious in taste, good in colour and luster and high in nutritional value.

A flavor modifier composition for a meat analog is provided. The flavor modifier composition includes a yeast extract; a fatty acid; peptide material having a molecular weight of from about 300 to about 10,000 daltons; and at least two free amino acids wherein at least one free amino acid is a sulfur containing amino acid.

The invention discloses a coking corrosion inhibitor. The coking corrosion inhibitor comprises, by weight, 30-35 parts of a sulfur-containing amino acid composition, 12-15 parts of an amine complexingagent, 10-12 parts of polyacrylamide and 6-12 parts of a synergist. The coking corrosion inhibitor has the advantages of low cost, and easiness in degradation; the amino acid composition, the amine complexing agent and polyacrylamide are compounded for use, so the corrosion inhibition effect is obvious; the amino acid composition used as a main raw material is matched with a first-generation corrosion inhibitor, so that the use amount of the amine complexing agent is greatly reduced; and the defect of poor compactness of an adsorption film of a green corrosion inhibitor in the prior art is overcome in a mode of loading amino acids on a carbon-based material, so that the corrosion inhibitor is environmentally friendly, and has an obviously better corrosion inhibition effect than the first-generation corrosion inhibitor.

The invention provides a wild kiwi fruit/onion health-preserving wine and a preparation method thereof. Onion juice with lower acidity is added into the wild kiwi fruit unblended wine, thereby effectively lowering the overall acidity of the finished wine. Besides, the onions have favorable piquancy, so the wine has richer mouthfeel and longer aftertaste. The onions have the advantages of lower market price, high storability and high juice yield, so the product cost is greatly lowered. The onion juice is added at the time of semifinished wine fining, thereby maintaining the natural color of the onions, and avoiding the loss of nutrients and flavor in the fermentation process. The onion juice participates in the semifinished product cold-treating process, thereby enhancing the non-biological stability of the finished wine. The onion juice can enhance the health-care effect of the wild kiwi fruit wine; allyl disulfides and small mounts of sulfur amino acids contained in the onion juice have the function of lowering blood pressure; and the allyl disulfides and sulfur amino acids belong to glycosides, have the effect of resisting artery blood vessels from hardening, and can prevent thrombosis from formation; and sulfoureido butyric acid contained in the onions can obviously lower the blood sugar content.

The invention belongs to the field of crop fertilizers, and particularly relates to a specific fertilizer for improving natural fragrance of green Chinese onion. The specific fertilizer comprises ammonium sulfate, calcium superphosphate, plant ash, decomposed dung, boric acid, sulfur-containing amino acid, manganese sulfate, zinc sulfate and sugar alcohol. According to the specific fertilizer, the nutrient content is reasonably mixed according to the characteristics of fertilizer requirement for green Chinese onion growth, trace elements manganese and zinc and organic carbon fertilizer sugar alcohol are mixed to activate the catalytic activity of allicin enzyme which is a key enzyme for synthesis of spicy substances in green Chinese onion bodies; and the sulfur-containing amino acid is used for providing a substrate for synthesis of spicy substances, so that the content of spicy substances in the green Chinese onion bodies can be increased, and the flavor of the green Chinese onions can be rich. The specific fertilizer is applied as base fertilizer and topdressing, so that the yield of green Chinese onions can be increased, spicy substances of green Chinese onions can be increased, and the natural fragrance of green Chinese onions can be rich. The specific fertilizer has a relatively high market application value.

The invention provides a composite method for preparing meat-flavor essence by fermenting vegetable protein by using a microbial strain bacillus megaterium and then carrying out compound protease enzymolysis. The method comprises the following steps of: mixing a vegetable protein powder aqueous solution and a glucose syrup aqueous solution, inoculating a bacillus megaterium seed solution, and carrying out stirring fermentation; hydrolyzing the bacillus megatherium fermentation liquor by using commercial compound protease; and finally, performing Maillard reaction, filtering and drying. According to the method, meat-flavor essence with harmonious and strong fragrance can be prepared, bitter amino acid in hydrolysate is greatly reduced, sweet amino acid and sulfur-containing amino acid are increased, and the finish machining way of vegetable protein is widened.

The invention discloses nutritive paste for helping pet cats to beautify hair and protect hair. The nutritive paste for helping pet cats to beautify hair and protect hair comprises the following raw materials in parts by mass of 98-99 parts of fresh meat, 0.2-1 part of fleece-flower root extracts and 0.5-1 part of sulfur-containing amino acids. The nutritive paste for helping pet cats to beautifyhair and protect hair is prepared through the steps of taking 98-99 parts of the fresh meat, and performing mincing; taking methionine and cysteine, and performing mixing so as to obtain the sulfur-containing amino acids; thoroughly cleaning fresh fleece-flower root stems and leaves, performing baking, performing crushing, and performing screening; with ethanol water as a solvent, performing ultrasonic extraction at 45-55 DEG C, performing vacuum filtration, and performing reduction vaporization and concentration on filtrate at 40-45 DEG C until a dry state; performing repeated extraction witha chloroformic solution, and finally obtaining natural fleece-flower root extracts; and adding the natural fleece-flower root extracts and the sulfur-containing amino acids to meat paste, performingstirring, performing vacuum treatment, performing encapsulation with rolled films, performing high-temperature sterilization treatment for 30-60min, and performing rapid cooling so as to obtain corresponding products. The nutritive paste disclosed by the invention dynamically and comprehensively adjust and control hair growth from the angles of growth and metabolism of the hair, cycle transportation and raw material supply, so that the nutritive paste can effectively help cats to beautify the hair and protect the hair.

The invention discloses a method for measuring the sulfur-containing amino acid content of Astragali mushroom, and relates to the field of measurement of amino acid content of the Astragali mushroom.The method comprises the following steps: performing performic acid oxidation protection on the Astragali mushroom serving as a raw material, performing acid hydrolysis, performing ultrafiltration centrifugation, performing derivatization by taking 2,4-dinitrofluorobenzene as a derivatization reagent, performing gradient elution on the obtained derivative sample liquid through high performance liquid chromatography and by taking acetonitrile-water and sodium acetate as flowing phases, detecting under the wavelength of 360 nm, separating derivatives of cysteic acid and methionine sulfone, measuring the peak area of a cystine standard product and a methionine standard product under different concentration gradient, drawing a standard curve, and measuring the cystin content and the methioninecontent separately to obtain the sulfur-containing amino acid content. According to the method, the requirement on instruments is low, the reaction condition does not need to be strictly limited, thequantity of the needed samples is small, the samples are not damaged, single component can be analyzed, and the method is a measuring method which is efficient, accurate, simple, convenient and easyto operate and low in price.

A method of treating degenerative mitral valve disease (DMVD) in a companion animal having DMVD, a method of preventing DMVD in a companion animal at risk thereof, and a method of maintaining or improving cardiac health in a companion animal. The methods include orally administering to the companion animal a composition containing medium chain triglycerides and optionally one or more of omega-3 fatty acids, vitamin E, lysine, taurine, magnesium, or sulfur-containing amino acids.