242 results about "Soybean Proteins" patented technology

The invention provides a soybean protein nanoparticle coagulant for removing perfluorinated compounds in water as well as a preparation method and application thereof. The preparation method comprises the following steps: firstly, preparing N, N-dimethyl hexadecylamine and epoxy chloropropane into a reaction precursor, namely epoxy propyl hexadecyl dimethyl ammonium chloride; meanwhile, hydrolyzing the soybean protein isolate by using protease to obtain a hydrolyzed soybean protein solution; enabling the epoxy group on the epoxy propyl hexadecyl dimethyl ammonium chloride and the amino group on the hydrolyzed soybean protein to be subjected to ring-opening addition reaction so as to be grafted to the hydrolyzed soybean protein, and adding acetone to generate precipitate after the reaction is finished; and collecting the precipitate, washing and drying to obtain the soybean protein nanoparticle coagulant for removing the perfluorinated compounds in the water. The soybean protein nanoparticle coagulant prepared by the invention utilizes strong electrostatic interaction and hydrophobic interaction, the removal capacity and selectivity of the soybean protein nanoparticle coagulant on PFAS are far higher than those of a traditional coagulant, and the soybean protein nanoparticle coagulant has excellent removal efficiency and remarkable anti-interference capability.

The invention relates to the field of food, and provides a soybean protein product and a preparation method thereof.The method comprises the steps that soybean and water are subjected to pulp grinding and centrifugal treatment, and residue-removed soybean milk and soybean residues are obtained; performing cold precipitation and centrifugal treatment on the residue-removed soybean milk to obtain a cold precipitation precipitate and a cold precipitation supernatant; carrying out ultrafiltration treatment on the cold precipitation supernatant, and collecting retentate; respectively drying the cold precipitation precipitate and the intercepted substance to obtain a cold precipitation dried substance and an intercepted dried substance; and carrying out mixing treatment on the cold-precipitated dried substance and the intercepted dried substance to obtain the soybean protein product. The soybean protein product prepared by the method contains all amino acids essential to human bodies, the proportion of the amino acids is close to that of ideal amino acids, and the nutritional value is high. Moreover, the method is simple and convenient to operate, low in cost and suitable for large-scale production.

The invention belongs to the field of cellulose materials, and particularly relates to a functional cellulose fiber as well as a preparation method and application thereof. The functional cellulose fiber comprises a core structure formed by fiber raw materials and a skin layer structure formed by functional components, the skin layer structure covers the surface of the core structure, and the functional components are selected from one or more of silk fibroin, sodium alginate and soybean protein. The cellulose functional fiber with the skin-core structure is prepared, the core layer is a cellulose layer, high strength is provided, the skin layer is a functional layer, and good comfort is provided.

The invention discloses a cross-platform soybean seed protein content estimation method based on a spectral time sequence. The method comprises the following steps: step 1, acquiring high spectral data of a soybean canopy; 2, collecting a soybean multispectral image; step 3, acquiring soybean physiological parameters and grain protein content data; step 4, obtaining soybean photosynthetic parameter data; step 5, calculating a vegetation index for estimation; step 6, constructing a vegetation index time sequence; 7, screening an optimal time window; 8, extracting dynamic characteristics; step 9, establishing a model, estimating the soybean protein content, and performing precision verification; and step 10, carrying out mobility analysis on the model from a near-ground canopy to a satellite platform. According to the method, a theoretical basis and a practical path are provided for realizing remote sensing-based soybean GPC accurate monitoring, wide application of the method on a satellite remote sensing platform can be promoted in the future, and high-precision, high-time-efficiency and large-scale soybean GPC estimation is realized.

The invention discloses functional recombinant soybean protein isolate emulsion gel as well as a preparation method and application thereof, and belongs to the technical field of soybean protein processing. The preparation method comprises the following steps: recombining three main components, namely soybean lipophilic protein, glycinin and beta-conglycinin, in soybean protein isolate (SPI) according to a certain compounding ratio, and carrying out combined modification on the recombined SPI by virtue of modification means such as ultrasonic treatment, heat treatment, magnetic field and enzyme crosslinking; the recombined SPI emulsion is subjected to micronization treatment by adopting high-pressure microjet homogenization treatment, and then the emulsion is jointly induced to be gelatinized by utilizing acid and salt ions and transglutaminase, so that the preparation efficiency, the structural strength and the stability of the emulsion gel are improved; two polyphenols, namely epigallocatechin gallate and quercetin, are co-embedded in an interface and an oil phase of the emulsion gel, so that the bioaccessibility and antioxidant activity of the polyphenols are improved, and the emulsion gel is endowed with functionality. The prepared emulsion gel can be widely applied to processing of functional food.

The invention discloses a preparation method of soybean milk powder for promoting immune regulation, and belongs to the technical field of soybean product processing. Performing biological enzymolysis; modifying soybean protein; compounding functional components; and preparing the microcapsule. An ultrasonic-enzyme composite extraction technology is applied, and the enrichment rate of components with immunocompetence is increased. According to the method, the Maillard reaction is performed on the soybean protein and the polysaccharide by utilizing an ultrasonic-assisted heating technology, so that the emulsifying characteristic of the soybean protein isolate is improved, and the immunoregulation promoting performance of the soybean protein isolate is greatly improved. According to the invention, through a microcapsule embedding technology, glycosylated soybean protein is wrapped in the particles by a wall material formed by galactooligosaccharide and resistant dextrin, the stability and bioavailability are improved, the microencapsulation efficiency is greater than 95%, and the immunoregulation promotion performance of the microencapsulated soybean protein is effectively exerted. By adopting spray drying, inactivation of immune active components caused by high temperature is avoided.

The present disclosure provides polypeptides having a cholesterol-lowering function in a soybean protein hydrolysate, a preparation method thereof, and uses thereof. The polypeptides are derived from peptide fragments having a molecular docking “binding energy” value of less than −1.2 kcal with cholesterol esterase. The peptide fragments of the polypeptides that are subjected to molecular docking with cholesterol esterase are derived from 23 polypeptides having a Peptide Ranker bioactivity score of greater than 0.9. The polypeptides possess a significant blood-lipid-lowering function.

The invention relates to the technical field of microcapsule preparation, and particularly discloses a microcapsule composition with a slow release function and a preparation method and application of the microcapsule composition. Soybean protein provided by the invention is subjected to three-stage hydrolysis to generate small molecule peptide and amino acid, and the small molecule peptide and amino acid can be interwoven with maltodextrin in a network structure; therefore, a compact and coherent composite wall material network structure is jointly constructed, erosion of gastric acid can be effectively resisted, and physical isolation protection is provided for probiotics. When the microcapsule enters an environment from neutral to alkalescent intestinal tracts, the pH value in the intestinal tracts is increased, and an original hydrogen bond network structure among molecules is damaged, so that an original compact gel network structure becomes loose and is greatly swelled; meanwhile, the hydrolyzed soybean protein can be further hydrolyzed under the action of intestinal trypsin and the like, the wall material structure of the microcapsule is gradually loosened, thalli are gradually released in the swelling-disintegration process, targeted slow release of the intestinal tract is achieved, and therefore the probiotic function of the microcapsule is achieved.

The present application relates to a kind of compositions containing potato extract and with extended satiety and its preparation method and application, and the composition includes the following weight parts of raw materials: plant extract 30-40 parts, protein component 10-20 parts, dietary fiber component 30-40 parts and auxiliary materials 5-10 parts;Wherein, the plant extract includes potato extract, white kidney bean extract, tea flower extract and lotus leaf extract, the protein component is at least one in pea protein, soybean protein and oat protein, the dietary fiber component is the combination of inulin, resistant dextrin, psyllium husk powder, apple fiber powder and citrus fiber powder.The composition of the present application has significant advantages in controlling body weight and managing satiety, and realizes the weight loss effect of "reducing heat absorption, extending satiety and promoting metabolism" in multiple dimensions, forms sustainable metabolic health support long-term value, and can be used for preparing weight loss body shaping functional food.

The invention discloses a method for preparing a soybean protein hydrolysate-soybean seed coat polysaccharide compound based on ultrasonic treatment.The method belongs to the technical field of food processing and manufacturing, soybean protein isolate hydrolysate with a balanced structure is obtained by controlling enzymolysis conditions, then the soybean protein isolate hydrolysate is compounded with soybean seed coat polysaccharide, moderate ultrasonic treatment is combined, and the soybean protein hydrolysate-soybean seed coat polysaccharide compound is obtained. Compared with the prior art, the preparation method has the advantages that the emulsifying property is improved while the protein structure functionality is maintained, and the preparation method is simple in process, green, environmentally friendly and capable of achieving large-scale production and is suitable for functional emulsion food, active substance delivery and development of other emulsion-based products.

The present disclosure can improve the degree of soy protein proteolysis and the ability to produce valine, isoleucine, and leucine, which are branched-chain amino acids, as well as other amino acids, such as threonine, glycine, tyrosine, and lysine. Accordingly, the present disclosure can prevent sarcopenia and has antioxidant activity. Also, the present disclosure can maintain protein metabolic balance and relieve sarcopenia by muscle synthesis.The self-aggregation, hydrophobicity, and intestinal adhesion of a mixed strain is improved compared to a case where a single strain used for the mixed strain is used. Therefore, when the mixed strain of the present disclosure is ingested, the strain can remain for a long time in the intestine.

The invention belongs to the field of molecular biology, and relates to application of soybean protein GmSEED1 and a coding gene thereof in regulating and controlling the grain weight of seeds. The GmSEED1 is a protein of which the amino acid sequence is as shown in SEQ ID No. 2. Experiments prove that the GmSEED1 and related biological materials thereof can be used for increasing the crop yield and cultivating high-yield varieties.

Problem:Soybean saponins have been reported to possess various physiological activities, but their content in natural products is low, and blending into other materials is difficult in consideration of flavor and physical properties. Furthermore, concentrated saponins significantly impair flavor. The objective of the present invention is to find a material that contains soybean-derived saponins at a high content without unpleasant bitterness or astringency, and to produce saponin-enriched chocolates using this material.Resolution:It has been found that a poorly soluble soybean protein material, which is unhydrolyzed residue generated by the enzymatic hydrolysis of a soybean protein raw material, contains saponins at a high content and does not possess unpleasant bitterness or astringency. By blending this poorly soluble soybean protein material into chocolate, the target amount of saponins can be included without affecting the flavor and texture.

This application relates to a method for improving the utilization of soybean protein in salmonid fish. This disclosure provides a method for modifying salmonid fish to grow on a diet containing soybean protein. The method includes administering a fish feed composition to the fish for an effective period after hatching. The fish feed composition contains soybean protein and an effective amount of an antioxidant. The antioxidant may be astaxanthin.

This invention discloses a small-molecule soybean peptide, its preparation method, and its applications. The preparation method includes: mixing soybean protein isolate with water and then performing pH shift pretreatment, deep eutectic solvent pretreatment, and pulsed electric field pretreatment; subsequently, enzymatic hydrolysis, enzyme inactivation, centrifugation, and collection of the supernatant; then, performing a two-step fractional alcohol precipitation treatment on the supernatant, collecting the precipitate, reconstituteing, and freeze-drying to obtain the small-molecule soybean peptide. This soybean peptide has a molecular weight <1 kDa and a component content of over 94%, and can be used as a nitrogen source to replace soybean peptone in Bacillus subtilis fermentation medium. This small-molecule soybean peptide has a good yield-promoting effect on at least five Bacillus subtilis strains and can be used to promote the production of nattokinase by Bacillus subtilis biofilm fermentation, with the highest nattokinase activity reaching approximately 14800 U / mL.

The invention provides a coffee and soybean milk composition for body weight management and a preparation method thereof. The coffee and soybean milk composition comprises the following components in parts by mass: 10-20 parts of a coffee component, 20-60 parts of a soybean protein component, 5-10 parts of a mitochondrial activator and 5-15 parts of dietary fibers. According to the coffee and soybean milk composition provided by the invention, the coffee component, the soybean protein component, the mitochondrial activator and the dietary fiber are scientifically and specifically proportioned, so that key functional components, namely caffeine and chlorogenic acid in coffee, generate a synergistic biological effect with the soybean protein; and a coordinated regulation system of a targeted lipid metabolism full chain is systematically constructed. According to the preparation method, the coffee-dietary fiber microcapsule powder is obtained through a microencapsulation process, the structure can effectively protect heat-sensitive components such as chlorogenic acid and part of aroma substances in coffee from being damaged in the processing and storage process, and the synergistic effect performance of beneficial components in the coffee and soybean milk composition in the human body is guaranteed.

It has been reported that soybean saponin has various physiological activities, but the content thereof in natural products is low, and it is difficult to blend soybean saponin with other materials in terms of flavor and physical properties. In addition, concentrated saponin greatly inhibits flavor. To find out a material highly containing saponin derived from soybean and free from unpleasant bitterness and astringency, and to produce chocolates highly containing saponin by using the material.SOLUTION: It has been found that a hardly soluble soybean protein material, which is an undecomposed residue produced by enzymatically hydrolyzing a soybean protein raw material, contains saponin at a high level and does not have unpleasant bitterness or astringency. By blending the hardly soluble soybean protein material with chocolate, a desired amount of saponin can be contained without affecting flavor and texture.SELECTED DRAWING: None

The invention discloses a method for inhibiting deterioration of soybean protein flavor hydrolysate, and belongs to the field of food processing and safety. The method comprises the following steps: adding 3% of beta-cyclodextrin into soybean protein fresh hydrolysate, controlling the temperature to be 55 DEG C and the pH value to be 7, and concentrating to obtain a beta-cyclodextrin-soybean flavor base material inclusion compound concentrated solution with the solid content of 50% through a rotary evaporation process. The method disclosed by the invention can effectively inhibit aggregation of the soybean protein hydrolysate and generation of bitter taste in the storage period, maintain the delicate flavor and improve the storage stability, and has a wide application prospect in the aspects of inhibiting quality deterioration of the soybean protein flavor hydrolysate and prolonging the shelf life of the seasoning.

The invention provides a KASP primer pair, a kit, a method and application for detecting haplotypes related to the soybean protein content, and the haplotypes related to the soybean protein content comprise three linkage SNP sites located on a Chr11 chromosome, namely SNP1 at the 4903434 position, SNP2 at the 47558915 position and SNP3 at the 47559046 position. The invention also provides three groups of KASP primer pairs for detecting SNP1, SNP2 and SNP3, and the three groups of KASP primer pairs are used for detecting soybean gene DNA (Deoxyribose Nucleic Acid) and genotyping three SNP sites so as to judge whether the soybean is a species with high protein content or not. The detection method provided by the invention is high in detection speed, low in cost and suitable for large-scale sample detection. The detection method can be applied to soybean molecular marker-assisted breeding selection, variety improvement and germplasm resource evaluation.

The utility model belongs to soybean protein peptone production wastewater pretreatment technical field, concretely relates to a kind of multistage filter device of soybean protein peptone production wastewater pretreatment, including processing cylinder, and the side of processing cylinder is provided with telescopic component, and first sealing sliding disc and second sealing sliding disc located in the inside of processing cylinder are arranged on telescopic component, and first sealing sliding disc and second sealing sliding disc divide processing cylinder into first cavity, second cavity and third cavity, and multiple first through-hole, second through-hole and elastic component are arranged in circular array on first sealing sliding disc and second sealing sliding disc, sliding block is arranged in first through-hole inside, and the hollow cylindrical filter ring connected with elastic component is arranged in the top of sliding block, and third through-hole, which is communicated with the hollow cavity of hollow cylindrical filter ring, is formed in the sliding block, and third through-hole is communicated with first through-hole.The device uses wastewater pressure as core driving force, realizes the automatic extension filtering of filter ring and elastic reset scraping cleaning.

The invention discloses a low-GI sweet potato biscuit and a preparation method thereof. The preparation method comprises the following steps: mixing sweet potato whole powder, inulin and other raw materials to form basic powder, freezing at-20 DEG C, forming pores, and unfreezing to obtain porous premixed powder; the preparation method comprises the following steps: preparing a composite mineralizing solution containing soybean protein peptide, nano calcium hydrophosphate and tea polyphenol, mixing and mineralizing the composite mineralizing solution with porous premixed powder, screening, mixing and kneading with an auxiliary material emulsion, forming, freezing to obtain biscuit blanks, and finally performing segmented temperature-controlled baking, cooling and packaging. According to the low-GI sweet potato biscuit and the preparation method thereof, a freezing pore-forming-polyphenol mediated mineralization-peptide anchoring three-in-one composite modification technology is adopted, functional raw materials in a specific proportion are cooperated, a five-dimensional cross-linked network of porous starch-peptide-polyphenol-mineral substance-beta-glucan is constructed, and function upgrading of the low-GI sweet potato biscuit is achieved from multiple dimensions of structure optimization, mechanism strengthening and nutrition cooperation.

This invention discloses a wear-resistant leather fabric and its preparation method. The method involves sequentially subjecting animal raw hides to degreasing, washing, a first low-temperature plasma treatment, retanning, a second low-temperature plasma treatment, fatliquoring, dyeing, and color fixing. The retanning agent used in the retanning process is a mixture of ricinoleic acid-modified polyurethane, polyhedral oligomeric silsesquioxane, fibrous soybean protein, and zirconium oxide composite graphene oxide. The leather fabric obtained by this invention exhibits excellent wear resistance, extends the service life of the leather fabric, maintains good softness, and provides superior comfort.

This invention discloses an octapeptide derived from soybean protein with the function of lowering blood pressure, blood sugar, and cholesterol, as well as its preparation and application, belonging to the field of small molecule peptide technology. The octapeptide sequence is YEGNWGPL, which can be obtained artificially or by targeted enzymatic hydrolysis of soybean protein isolate. Functional verification in a hyperlipidemia model shows that the octapeptide YEGNWGPL has the function of lowering blood lipids; functional verification in a hyperglycemia model shows that the octapeptide YEGNWGPL has the function of lowering blood sugar, with a significantly better effect than the drug metformin; functional verification in a hypertension model shows that the octapeptide YEGNWGPL has the function of lowering blood pressure, with a significantly better effect than the antihypertensive drug captopril; moreover, food-derived bioactive peptides have high biosafety, therefore, they can be applied to the development of related products for lowering blood pressure, blood sugar, and cholesterol or assisting in lowering blood pressure, blood sugar, and cholesterol, with good market prospects and application potential.

The application discloses a composition capable of effectively inhibiting the growth of Staphylococcus aureus biofilm. The application firstly optimizes the nitrogen source in the culture medium of Staphylococcus epidermidis CCSM0287 strain, fully explores the growth difference of Staphylococcus epidermidis under different culture media and culture conditions and the inhibition effect of the fermentation supernatant on Staphylococcus aureus biofilm, then compounds the fermentation supernatant of Staphylococcus epidermidis CCSM0287 obtained by using the optimized culture medium (the nitrogen source adopts tryptone + soybean peptone + fresh beef bone collagen peptide powder) with the fermentation supernatant of Lactobacillus paracasei S20, can obviously inhibit the growth of Staphylococcus aureus biofilm and destroy the surface structure of the Staphylococcus aureus biofilm, and can be applied in bacteriostatic products.

This invention provides a novel raw material that, for cats, which exhibit unique characteristics in their kidneys compared to other mammals, can inhibit the decline in feline kidney function and improve coat condition while maintaining the form of cat food or other feeds. When using a poorly soluble soybean protein raw material with a characteristic amino acid composition of less than a glutamic acid (Glu) to leucine (Leu) mass ratio of 2, and an NSI of 10%–60%, the decline in feline kidney function can be inhibited and coat condition improved through small-scale intake. This raw material can also be obtained as undigested residue from the soybean peptide manufacturing process.

The invention relates to the technical field of gene engineering, in particular to a soybean GmST3d gene mutant and application of the soybean GmST3d gene mutant to regulation and control of resistance of soybeans to sclerotinia sclerotiorum. The invention provides the soybean GmST3d gene mutant, and reveals that the soybean GmST3d protein and the coding gene thereof have the function of regulating and controlling the resistance of the soybean to sclerotinia sclerotiorum for the first time, and the resistance of the soybean to the sclerotinia sclerotiorum can be effectively improved by introducing the soybean GmST3d gene mutant into a plant. The GmST3d protein and the coding gene thereof provided by the invention can be used for breeding soybean resistant varieties, and have a wide application prospect.

The application provides a molecular marker significantly related to soybean protein content, a KASP detection method and application. The nucleotide sequence of the molecular marker significantly related to soybean protein content is shown as SEQ ID NO. 1, wherein S at the 23th bp represents G or C. The KASP primer pair for detecting the molecular marker significantly related to soybean protein content contains sequences shown as SEQ ID NO. 2-4. The molecular marker and kit provided by the application can be directly used for early generation screening of soybean high-protein varieties in molecular breeding, shortens the breeding cycle, improves the selection efficiency, and accelerates the breeding process of excellent varieties.

The application discloses a SNP site related to soybean protein content and application thereof. The SNP site related to soybean protein content disclosed by the application is located at 35708082 of chromosome 19 of a soybean genome, and the polymorphism is C or A. The application also discloses a HRM melting curve method for identifying soybean protein content developed based on the SNP site, and the method is verified in a four-way recombinant inbred line material. The verification result shows that the SNP site discovered by the application is significantly related to the soybean seed protein content. The application provides a theoretical basis for molecular assisted breeding of the soybean protein content, and has important significance for cultivating new soybean varieties with high protein content.

The invention belongs to the field of water and slurry treatment agents, and discloses a hydrophobic modified glycinin-based flocculant as well as a preparation method and application thereof. The preparation method comprises the following steps: dissociating soybean protein subunits under alkaline and nitrogen protection; pre-emulsified octenyl succinic anhydride or dodecyl glycidyl ether is added for a grafting reaction; adjusting the pH to terminate the reaction and aging; and washing and drying to obtain the product. The flocculant has a hydrophobic association three-dimensional network structure, can efficiently capture particles in water, generates a self-extrusion drainage effect in slurry dehydration, is high in dehydration efficiency and environment-friendly, and is suitable for purification of high-turbidity water and dehydration of building slurry.