168 results about "AMINO ACID PREPARATION" patented technology

The invention provides fermented feed special for piglets and a preparation method thereof. The fermented feed special for the piglets comprises the following components: 25-35 wt% of corn powder, 20-35 wt% of fermented soybean meal, 5-7 wt% of fish meal, 3-5 wt% of spray dried fish soluble protein powder, 2-3 wt% of spray dried blood meal, 2-5 wt% of compound enzyme preparation, 4-5 wt% of complex amino acid preparation, 8-12 wt% of low-protein whey powder, 5-10 wt% of lactose, 3-5% of sucrose, 1-2 wt% of glutamine, 0.05-0.1 wt% of xylo-oligosaccharide, 0.2-0.5 wt% of zinc oxide, 0.1-0.2 wt%of copper sulfate and 0.1-0.2 wt% of calcium carbonate. The fermented feed overcomes the disadvantage that the digestive enzyme in the piglets are not enough, balances the microbial community in the piglets, improves the resistance of the piglets, and has good diet-induced effect.

Methods and compositions for amino acid production using genetically modified bacteria are disclosed.

The invention relates to a new microbe Bacillus fordii MH602 strain which can simultaneously produce hydantoinase and L-N-carbamyl hydrolase, hydantoinase produced by strain, L-N-carbamyl hydrolase gene and an application for preparing serial optical pure L-amino acid through the strain. The hydantoinase and L-N-carbamyl hydrolase that are produced by Bacillus fordii MH602 strain can overcome the defect of worse activity and heat stability of hydantoinase and L-N-carbamyl hydrolase in the L-amino acid procedure prepared by prior biologically inverted DL-5 substitution hydantoin or N-hydantoin amino acid, which is all provided with wide substrate spectrum, can catalyze a plurality of substrates and has better substrate selectivity for aromatic hydantoin. The applying operation for preparing L-amino acid by Bacillus fordii MH602 is simple and stable in operation, good in repeatability, which realizes stable and cheap preparation of L-amino acid and is beneficial to do large-scale preparation.

The invention belongs to the technical field of preparation of carbon nano materials, and specifically relates to a method of preparing a carbon nanoparticle with high luminous intensity by organic acid and amino acid. The preparation method comprises the following specific steps: mixing and uniformly grinding the organic acid and amino acid solids in a mortar, adding the mixed and grinded organic acid and amino acid solids into a polyhydric alcohol solvent to prepare mixed liquor; and then, transferring the mixed liquor into a reaction kettle, carrying out solvothermal reaction for 3 hours-6 hours under the condition of 120 DEG C-180 DEG C, and naturally cooling the reaction kettle to the room temperature to obtain carbon nanoparticle liquor. The prepared carbon nanoparticle is uniformly spherical in morphological structure, and has a particle size of 10 nm-30 nm. According to the preparation method disclosed by the invention, raw materials for preparing the carbon nanoparticle are cheap, steps are simple, conditions are gentle and controllable, and the prepared carbon nanoparticle is high in luminous intensity and good in stability. And meanwhile, the carbon nanoparticle is rich in carboxyl on surface, can be directly connected with biomolecules, and has a wide application prospect in the fields such as biological medical detection, cell and tissue imaging.

The invention relates to a hair dye and particularly relates to a natural durable hair dye prepared from iridoid and amino acid and a hair dyeing method. The hair dye provided by the invention contains an agent A, an agent B and an agent C, wherein the agent A contains 8-12% of amino acid, 1.0-5.0% of thickening agent, 0.5-1% of vitamin C and the balance of water, and the pH value of the agent A is adjusted to 8-10; the agent B contains 2-5% of iridoid, 1.0-5.0% of thickening agent, 2-4% of phenethyl alcohol and the balance of water; the agent C contains 3-12% of hydrogen peroxide, 1-5% of thickening agent and the balance of water. The hair dyeing method comprises the steps of firstly, discoloring hair, and then, washing and drying; then, uniformly coating the agent A on the hair, and keeping at the temperature of 30-35 DEG C for 15-25min; next, uniformly coating the agent B on the hair, and keeping at the temperature of 30-35 DEG C for 15-25min; finally, uniformly coating the agent C on the hair, keeping at the temperature of 30-35 DEG C for 20-25min, washing and drying the hair. No substances capable of generating toxicity to human bodies are generated in preparation and application processes of the hair dye; the hair dye is good in safety, capable of dyeing the air into various colors such as black, red, yellow, purplish red and the like, plentiful in dyed colors and favorable in fastness.

The invention relates to natural seasoning paste which is prepared from, by mass, 5-20 parts of natural seasoning, 70-80 parts of hydrolyzed plant protein fluid, 1-10 parts of I+G, 5-10 parts of salt, 5-10 parts of white granulated sugar, 1-5 parts of yeast extracts, 0.1-2 parts of essence and 1-15 parts of thickener. The natural seasoning paste is prepared in the mode that chicken, duck, fungi and other delicious substances are effectively extracted through boiling and biological enzymolysis and collagen of marrow in livestock bones is hydrolyzed into peptide and amino acid. The seasoning paste is a pasty seasoning similar to oyster sauce and is rich in taste, natural products are adopted as preparation raw materials and have no side effects on human bodies, and the natural seasoning paste can be used for flavoring of various soups and dishes and is wide in application range and wide in application prospect.

The invention discloses a preparation method of simulated tobacco shreds and a method for analyzing and researching the maillard reaction in a cigarette tobacco shred drying procedure by using the simulated tobacco shreds. The preparation method is characterized in that the simulated tobacco shreds which do not contain maillard reaction products are prepared from filter paper, reducing sugar and amino acid which serve as raw materials, and the tobacco shreds are used for researching the maillard reaction in the cigarette tobacco shred drying procedure. The preparation method has the advantages that (1) the filter paper with the character similar to that of tobaccos is used as a matrix, and the reducing sugar and the amino acid are added to prepare the simulated tobacco shreds which do not contain intermediate products and final products of the maillard reaction and can avoid interference caused by the maillard reactionproducts contained in tobaccos and enable the research on the maillard reaction in the tobacco shred drying procedure to be more accurate and targeted; (2) by setting of the types and ratios of the reducing sugar and the amino acid, a system pH, a heating condition and the like, a model system with different reaction conditions is obtained, and the influence of various reaction factors on the maillard reaction in the tobacco shred drying procedure can be inspected respectively.

The invention relates to a compound amino acid preparation for hemodialysis and a hemodialysis preparation containing the same. The invention provides a preparation for modulating disorder of plasma aminogram of hemodialysis patients by using a plurality of essential amino acids and semi-essential amino acids, specifically relates to a solid powder form or liquid bicarbonate hemodialysis preparation used for treating nephrosis and containing compound amino acids, and especially to a hemodialysis preparation containing L-leucine, L-isoleucine, L-valine, L-threonine, L-phenylalanine, L-methionine, L-tryptophan, L-lysine, L-histidine, L-arginine and a pH conditioning agent (e.g., acetic acid, citric acid, malic acid, lactic acid and hydrochloric acid) and a preparation method thereof. The hemodialysis preparation further contains sodium chloride, potassium chloride, calcium chloride, magnesium chloride and sodium bicarbonate, and can also include glucose. Compared to conventional bicarbonate hemodialysis preparations, the preparation provided in the invention has the advantages of partly modulating disorder of plasma aminogram of hemodialysis patients and reducing side effects in hemodialysis treatment.

The invention discloses a method for integrally preparing compound amino acid by using superfine grinding enzymolysis, and belongs to the technical field of a preparation method of the compound amino acid. The method comprises the following process steps of: 1) cleaning protein raw materials, removing impurities of the protein raw materials and drying for later use; (2) mixing the protein raw materials obtained in the step 1) with water; adding into a constant-temperature superfine grinding system; simultaneously adding proteolytic enzyme; and performing grinding enzymolysis on the protein raw materials; and 3) putting the materials obtained in the step 2) into a centrifugal machine for carrying out centrifugal separation; and spraying and drying supernate to obtain compound amino acid powder. The method is reasonable in design; the protein raw materials are subjected to earlier stage treatment and are treated by using a combined technology of mechanical force superfine grinding and enzymolysis; a condition of the constant-temperature superfine grinding system and a condition of the enzymolysis are reasonably controlled at the same time; and the protein raw materials are subjected to after-treatment, so that the environment-friendly low-carbon requirement is met, and the pollution and the hazard are avoided; and therefore, the prepared compound amino acid is a preferable fertilizer carrier to develop green organic agriculture.

The invention relates to a coating material used for rumen by-pass amino acid preparation, including soybean wax, stearic acid, fatty acid, ethyl cellulose, polyethylene glycol and a pH sensitizer. The invention also relates to a rumen by-pass amino acid preparation, which includes the coating material disclosed by the invention and one or more of amino acids. The invention also relates to a preparation method a rumen by-pass amino acid preparation. The preparation method comprises the steps of 1) using one or more amino acid as core material; and 2) coating a core material by using the coating material disclosed by the invention.

The invention discloses an amphipathic oligomeric polypeptide drug conjugate. According to the amphipathic oligomeric polypeptide drug conjugate, a drug can be directly condensed with a carboxyl at the terminal C of oligomeric polypeptide through a hydroxy or an amino in the chemical structure, so as to form an ester bond or an amido bond, or the drug can be condensed with an amino at the terminal N of oligomeric polypeptide through a carboxyl in the chemical structure, so as to form the amido bond, or the drug can be bonded with oligomeric polypeptide through certain link molecules. The drug conjugate has the advantages that oligomeric polypeptide which is prepared from high-safety amino acid is adopted as a main building material, and can be coupled with an anti-inflammatory drug for preparation of the amphipathic oligomeric polypeptide drug conjugate; compared with the conventional preparation, the amphipathic oligomeric polypeptide drug conjugate has the advantages of high safety and drug carrying capacity because the drug can be directly bonded with a carrier material; when the amphipathic oligomeric polypeptide drug conjugate enters a human body, the effect of the drug can be exerted for a long time.

The invention provides a pork pig fermented feed and a preparation method thereof. The pork pig fermented feed consists of the following components in percentage by weight: 20-35 percent of corn flour, 20-35 percent of fermented soybean meal, 5-7 percent of dephenolized lintless and non-hull cottonseed meal, 5-7 percent of fish meal, 3-5 percent of spray dried plasma protein, 2-3 percent of spray dried blood flour 2-5 percent of composite enzyme preparation, 2-5 percent of composite amino acid preparation, 8-12 percent of low-protein whey powder, 5-10 percent of lactose, 3-5 percent of sugar, 1-2 percent of glutamine, 0.2-0.5 percent of zinc oxide, 0.1-0.2 percent of copper sulfate and 0.1-0.2 percent of calcium carbonate. According to the pork pig fermented feed, the disadvantage of insufficient digestive enzyme in pork pigs can be overcome, the microbial floras in the pork pigs are balanced, the resistance of the pork pigs is enhanced, and a good feeding promotion effect is achieved.

The invention discloses a novel soluble fertilizer with a humic acid biological activity. The novel soluble fertilizer comprises the following components: 8-15wt% of potassium humate, 5.6-10.5wt% of diammonium phosphate, 5-8.8 percent of urea, 3.8-5.6wt% of boric acid, 3.8-12.5wt% of monopotassium phosphate, 2.8-4.5wt% of active compound amino acid preparation, 0.5-1.5wt% of plant active agent, and 57.5-75.5wt% of water. The novel soluble fertilizer has three effects of nutritional supplement, antibiosis and virus resistance, and has the advantages of effectively improving soil, being durable in fertilizer effect, enabling the root system of the plants to be developed, enhancing the disease resistance, effectively improving the crop quality, having an effect of preserving moisture and fertility, activating immobilized nutrients in soil so as to ensure that sufficient nutrients can be obtained for the crops in the whole reproductive period, preventing premature senility, and prolonging the picking period.

The invention relates to an amino alcohol preparation method using aqueous amino acid as a raw material. The method employs a catalyst; and amino acid in aqueous solution or in a mixed solution of water and other solvent is reduced by hydrogen under catalyst effect, so as to synthesize amino alcohol through a one step method. The method has characteristics of simple steps, short production period, little pollution and low production costs, etc.

The invention discloses an unsaturated ester prepared from an amino acid which takes threonine as a representative and contains hydroxyl groups. The invention further discloses a preparation method of the unsaturated ester shown in the specification. The preparation method comprises the following steps: modifying an unsaturated carboxylic acid with the amino acid, carrying out an esterification reaction so as to esterify the threonine containing hydroxyl groups by virtue of the unsaturated carboxylic acid, and feeding carboxyl groups, amino groups and sulfonic groups into the hydroxyl groups of the amino acid so as to synthesize an unsaturated amino acid ester.

An albumin preparation that prevents onset of hepatic encephalopathy caused by conventional amino acid preparations and enhances an effect of improving the symptoms is provided. The albumin preparation containing amino acids is characterized in that a content of albumin is 0.01 to 1.0 w/v %, a content of plurality of amino acids containing branched amino acid is 5 to 10 w/v %, a content of the branched amino acids is equal to or more than 30 w/w % on the basis of the content of total amino acids and further, the Fischer ratio (branched amino acid/[phenylalanine+tyrosine] (molar ratio)) is equal to or more than 20.