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62 results about "Gliadin" patented technology

Gliadin (a type of prolamin) is a class of proteins present in wheat and several other cereals within the grass genus Triticum. Gliadins, which are a component of gluten, are essential for giving bread the ability to rise properly during baking. Gliadins and glutenins are the two main components of the gluten fraction of the wheat seed. This gluten is found in products such as wheat flour. Gluten is split about evenly between the gliadins and glutenins, although there are variations found in different sources.

Double-layer preservative film for prolonging shelf life of frozen beef and mutton after unfreezing and preparation method of double-layer preservative film

The invention relates to a double-layer preservative film for prolonging the shelf life of frozen beef and mutton after unfreezing and a preparation method of the double-layer preservative film. According to the preparation method of the angelica dahurica extract-gliadin nano-particles, the angelica dahurica extract-gliadin nano-particles can be used for preparing a double-layer preservative film, and the preservative film is a natural component and is environmentally friendly and safe. The preservative film is of a double-layer structure, the mechanical performance is enhanced through the double-layer film structure, and meanwhile the preservative film has excellent oxygen and water vapor barrier performance and an antibacterial effect. According to the preservative film disclosed by the invention, slow release of active ingredients is realized by utilizing the Pycnogenin-gliadin nanoparticles, so that the antioxidant and antibacterial effects are remarkably improved, and the quality guarantee period of meat is prolonged. In addition, the preservative film does not need to be in direct contact with food in practical application, potential safety hazards of the food are further reduced, the operation process is simplified, pollution is avoided, a user can conveniently use the preservative film, the preservative film has the advantages of efficient preservation and environmental protection, and the preservative film has good application prospects and value.
Owner:JIANGNAN UNIV +1

Cationic tannin and prolamin composite nano system as well as preparation method and application thereof

The invention relates to a cationic tannin and prolamin composite nano system and a preparation method and application thereof.The cationic tannin and prolamin composite nano system is prepared through the steps that cationic tannin and prolamin are dissolved in an alcoholic solution through an anti-solvent dispersion method, then the alcoholic solution is dropwise added and dispersed in water, and the cationic tannin and prolamin composite nano system is obtained. Nano-particles are formed through self-assembly under the interaction of non-covalent acting force between cationic tannin and prolamin in an aqueous solution, and the composite nano-system is applied to water treatment. Compared with the prior art, the water treatment agent is good in storage stability and has excellent performance of removing antibiotic pollution in a water body.
Owner:SHANGHAI UNIV OF MEDICINE & HEALTH SCI

Preparation method and device of SOD resistant to pepsin degradation

The application belongs to the field of SOD preparation, and discloses a preparation method and device of SOD resistant to pepsin degradation, which comprises the following steps: S1 powder preparation: dissolving SOD fermentation pure liquid in a buffer solution with pH of 5.2-7.8, adding protective agent and tea yellow in sequence, stirring, filtering, and placing in a freeze dryer to prepare freeze-dried powder; S2 drying; S3 tabletting; S4, coating liquid preparation: dissolving wheat gliadin and soybean protein in a mixed solution prepared from water and ethanol with a volume ratio of 1:1, wherein the mass ratio of the wheat gliadin and the soybean protein is 0.5-1:1, adding glycerol, stirring for 20 min by using a magnetic stirrer, and ultrasonicating for 40 s; S5, coating: placing the tablets in a coating machine, setting air inlet volume, air inlet temperature, pan rotating speed, atomization rate, fan face pressure, and mortar flow, until the coating weight increases to 3%-10% in mass fraction and the coating thickness is 20-50 μm, and then drying and cooling. The prepared SOD is not easy to be photolyzed and can resist gastric acid degradation to ensure the complete activity of the SOD.
Owner:HUBEI PRETIN BIOTECHNOLOGY CO LTD

Detection method of wheat gliadin

The invention provides a wheat gliadin detection method, and belongs to the technical field of biology. The detection method comprises the following steps: mixing a sample to be detected with an ethanol solution to obtain a mixture; performing water bath on the mixture to obtain a mixed extract; centrifuging the mixed extract to obtain a supernatant; adding a reductive alkylation reagent into the supernate to obtain a reaction product; adding alkaline trypsin into the reaction product to carry out enzymolysis reaction to obtain an enzymolysis product; a first characteristic peptide fragment and a second characteristic peptide fragment as shown in SEQ ID NO: 1 in the sequence table are respectively used as markers, and the wheat gliadin is measured by the enzymolysis product through ultra-high performance liquid chromatography-tandem mass spectrometry by utilizing the markers. The method is simple in process and capable of efficiently detecting the wheat gliadin.
Owner:HANGZHOU CENT FOR DISEASE CONTROL & PREVENTION

Method for modifying gliadin and application thereof

A method for modifying a gliadin and an application thereof are provided. The method includes the following steps: dissolving the gliadin in a solvent to obtain gliadin solution; and adding a proline endoprotease to the gliadin solution for a reaction, and adjusting the pH value of solution to neutral according to a gradient, to obtain a modified gliadin. The modified gliadin obtained by the present invention may be uniformly dispersed in water, and may still maintain a uniform dispersion state in the water after high-temperature thermal sterilization and long-term storage, or even in the presence of sodium chloride, it has good thermal stability, salt resistance, and storage stability.
Owner:CHINA AGRI UNIV

Application of ZmEREB93 gene knockout biological material in cultivation of high-yield and high-quality corn

The invention discloses application of a ZmEREB93 gene knockout biological material in cultivation of high-yield and high-quality corn, and relates to the technical field of biology. The ZmEREB93 gene knockout strain is constructed, homozygous seeds of the ZmEREB93 gene knockout strain are subjected to seed test analysis, and it is found that corn kernels of the knockout strain are remarkably superior to a wild type in the aspects of the grain length, the grain width, the hundred-grain weight and the single plant yield. In the early, middle and late periods of grain filling, the corn grains of the knockout strain are obviously superior to a wild type control in shape and endosperm structure. Further determination of starch content and protein content shows that the starch content of seeds of the knockout strain is significantly higher than that of a wild type control group, the alcohol-soluble protein content is also significantly increased, and the total protein content is significantly higher than that of a control group. Therefore, the ZmEREB93 gene has an important application value in cultivation of a high-yield and high-quality new corn variety.
Owner:SICHUAN AGRI UNIV

Application of TaMYB46L-5A protein or gene for coding TaMYB46L-5A protein in regulation and control of protein content of plant seeds

The invention provides an application of a TaMYB46L-5A protein or a gene for coding the TaMYB46L-5A protein in regulating and controlling the protein content of plant seeds, and belongs to the technical field of molecular biology. The invention provides an application of a TaMYB46L-5A protein or a gene for coding the TaMYB46L-5A protein in at least one of regulation and control of protein content of plant seeds, creation of transgenic plants with dominant protein content and breeding of plant varieties with dominant protein content. The result of the embodiment of the invention shows that the seed protein content of a TaMYB46L-5A overexpression plant is obviously reduced, the seed protein content of a TaMYB46L-5A mutant plant is increased, and the contents of prolamin and glutenin are obviously increased. Therefore, the TaMYB46L-5A can negatively regulate and control the protein content of the plant seeds, and plays an important role in plant breeding.
Owner:HENAN AGRICULTURAL UNIVERSITY

Composite nanofiber membrane containing wheat gliadin and preparation method thereof

The invention discloses a composite nanofiber membrane containing wheat gliadin and a preparation method of the composite nanofiber membrane. The composite nanofiber membrane comprises an inner layer and an outer layer, wherein the inner layer comprises wheat gliadin, gelatin, eugenol and a plasticizer; the outer layer is prepared from wheat gliadin, carboxymethyl chitosan, layered silicate nanosheets, a cross-linking agent and a dispersing agent. The wheat gliadin, the natural polymer and the nano material are used for constructing a double-layer structure with complementary functions through an electrospinning technology, so that excellent antibacterial property, barrier property and mechanical property are realized, and the shelf life of meat food can be effectively prolonged; a full-bio-based material is adopted, so that the environmental problem that a traditional plastic packaging material is difficult to degrade is solved; the preparation process is simple and convenient, controllable in parameters and suitable for large-scale production; meanwhile, multiple requirements of food safety, fresh-keeping effect and environment friendliness are met, and a novel efficient and green solution is provided for the field of meat food packaging.
Owner:YANCHENG INST OF IND TECH

Preparation method of specific yolk immunoglobulin (IgY) for resisting gliadin

The invention discloses a preparation method of specific yolk immunoglobulin (IgY) for resisting gliadin. The preparation method comprises the following steps: immunizing and inoculating experimental laying hens, monitoring health behaviors, collecting eggs, and separating, extracting and purifying the IgY. The IgY prepared on the basis of the method can serve as a food base material to be added into low-gluten food (such as whole wheat bread and noodles), and the allergy risk caused by intake of a small amount of gluten is reduced through specific binding of the IgY and gliadin; patients are allowed to properly ingest gluten-containing food, diet diversity is improved, nutrient imbalance is avoided, and the life quality of the patients is improved. As the IgY has good thermal stability, the IgY purified by the method can still tolerate mild heating (such as baking and cooking) in food processing, and can be widely applied to various forms of products such as baked food, meal replacement powder, liquid beverage and the like; meanwhile, the acid-base stability of the antibody can ensure that the antibody keeps activity in a stomach environment after oral administration and finally reaches the intestinal tract to play a role, and the limitation that the conventional antibody is easy to digest and degrade after oral administration is broken through.
Owner:INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI +1

Method for identifying dominant B cell epitope and T cell epitope in wheat omega-5 prolamin

The invention belongs to the technical field of immunotherapy of allergic diseases, and provides a method for identifying dominant B cell epitopes and T cell epitopes in wheat omega-5 prolamin. According to the identification method provided by the invention, an immunoinformatics tool, a proliferation test, a degranulation test and the like are comprehensively applied, and the cell proliferation capacity, cell factor release, IgG / IgE binding capacity and degranulation capacity of T / B cell epitopes are evaluated. Results show that the T cell epitopes T1 and T2 sharing the same sequence are relatively strong in multiplication capacity, can up-regulate Th2 related cell factors, but do not have degranulation activity. Three B cell peptide fragments B3, B4 and B9 which share a common motif region QQXPQQQ (X = F, L) can promote IgG / IgE binding and degranulation capabilities. These findings would contribute to the development of epitope-based immunotherapies against wheat allergy individuals.
Owner:SHANDONG ACADEMY OF AGRICULTURAL SCIENCES

Preparation method of mixed biomass carbon coated silicon-based negative electrode material

The invention provides a preparation method of a mixed biomass carbon coated silicon-based negative electrode material. Biomass carbon is mainly derived from prolamin, glutenin and high-activity yeast. Under the catalysis of high-activity yeast, prolamin and glutenin meet water to form a net-shaped structure, and the flexibility of the carbonized porous negative electrode material can be adjusted through different addition proportions, so that the flexible porous nitrogen-doped carbon-coated silicon-based negative electrode material can be obtained, the problem of volume expansion in the electrochemical process of a silicon negative electrode is relieved, and meanwhile, the conductivity is improved; the excellent electrochemical performance is shown. The porous silicon-based negative electrode material with controllable flexibility is obtained through drying and high-temperature annealing, the method is simple, effective and low in cost, and the prepared composite silicon-based negative electrode material is excellent in performance and suitable for large-scale production.
Owner:BEIJING INST OF TECH

Preparation method and device of SOD (superoxide dismutase) capable of resisting pepsin degradation

The invention belongs to the field of SOD preparation, and discloses a pepsin degradation resistant SOD preparation method and device, the method comprises the following steps: S1, powder preparation: dissolving SOD fermentation pure liquid in a buffer solution with the pH value of 5.2-7.8, sequentially adding a protective agent and theaflavin, stirring, filtering, and putting into a freeze dryer to prepare freeze-dried powder; s2, drying; s3, tabletting; s4, preparing a coating solution, namely dissolving wheat gliadin and soybean protein in a mixed solution prepared from water and ethanol in a volume ratio of 1: 1, adding a plasticizer, stirring for 20 minutes by using a magnetic stirrer, and performing ultrasonic treatment for 40 seconds, wherein the mass ratio of the wheat gliadin to the soybean protein is (0.5-1): 1; and S5, coating: placing the tablets in a coating machine, setting the air inlet rate, the air inlet temperature, the pot rotating speed, the atomization rate, the sector pressure and the guniting flow until the weight of the coating is increased to 3-10% by mass and the thickness of the coating is 20-50 microns, and drying and cooling. The method has the beneficial effects that the prepared SOD is not easy to be photolyzed, and can resist gastric acid degradation, so that the complete activity of the SOD is ensured.
Owner:HUBEI PRETIN BIOTECHNOLOGY CO LTD

Gluten specific alpaca polyclonal antibody and double antibody-streptavidin enzyme-linked immunosorbent assay (ELISA) bran quality inspection test kit thereof

The invention discloses a gluten specific alpaca polyclonal antibody and a double antibody-streptavidin enzyme-linked immunosorbent assay (ELISA) bran quality inspection test kit thereof. The detection kit provided by the invention takes an alpaca polyclonal antibody pAb as a capture antibody and biotinylated pAb as a detection antibody to carry out ELISA detection on gluten in a food matrix, and a novel double antibody-streptavidin ELISA detection method is constructed based on the detection kit. The detection method has good sensitivity and specificity, the EC50 value of alcohol-soluble protein is 51.21 ng / mL, the detection limit is as low as 0.07 ng / mL, the detection limit of the method is 4000 times lower than that of an existing R5 antibody method, and the sensitivity is better; when the alpaca polyclonal antibody pAb prepared by the invention is used for detection, the detection cost is reduced, reliable technical support is provided for gluten allergen detection, and the alpaca polyclonal antibody pAb is suitable for clinical and scientific research application of immunoassay kits, immune test strips and the like.
Owner:SOUTH CHINA AGRICULTURAL UNIVERSITY

Method for reducing disulfide bond content of alkali-soluble glutenin by using amylose

The preparation method comprises the following steps: mixing vital gluten and 65% ethanol according to a mass ratio of 1: 30, and stirring and extracting in a water bath kettle at 35 DEG C for 3 hours to dissolve alcohol-soluble protein in the vital gluten in the ethanol; after standing, centrifuging for 5 minutes by using a centrifugal machine under the condition of 3,500 r / min, taking the precipitate, repeating the steps for dissolving, centrifuging the solution for 5 minutes, and taking the precipitate, namely the glutenin aggregate. Dissolving the glutenin aggregate at 30 DEG C for 120 minutes by using 0.1% sodium hydroxide alkali liquor, standing at 50 DEG C for 12 hours, and regulating the pH value to be neutral to generate precipitate; and centrifuging for 5 minutes to obtain a precipitate which is alkali-soluble glutenin. Amylose and alkali-soluble glutenin are mixed according to the mass ratio of 1: 8-1: 10, drinking water accounting for 3%-5% of the starch amount is added, mixing is conducted for 30-50 min at the temperature of 30-35 DEG C, and the disulfide bond content of the alkali-soluble glutenin is reduced by 80% or above.
Owner:TIANJIN UNIV OF COMMERCE

Preparation and Application of a Bacillus subtilis Strain for Improving Utilizable Protein in Distillers Dried Grains with Solubles and Its Compound Bacterial Agent

The present invention belongs to the technical field of microbial engineering, and particularly relates to a Bacillus subtilis for enhancing the available protein in alcoholic corn distillers grains and the preparation and application of its composite bacterium agent. The present invention provides a Bacillus subtilis with a preservation number of CGMCC No. 32291. The Bacillus subtilis of the present invention can secrete protease and cellulase, degrade macromolecular proteins in alcoholic corn distillers grains into small molecular weight proteins during fermentation, and reduce the content of prolamin. The present invention also provides a composite bacterium agent, which includes Lactobacillus plantarum and the Bacillus subtilis described in the above technical solution. The composite bacterium agent of the present invention can increase the viable bacteria count and the content of corresponding beneficial metabolites in fermented alcoholic corn distillers grains, enrich the nutrition of alcoholic corn distillers grains, and improve the utilization rate of alcoholic corn distillers grains.
Owner:JILIN AGRICULTURAL UNIV

Application of rice phosphorus transporter gene and encoding protein thereof in improving nutrient utilization efficiency and rice quality

The invention discloses an application of a rice phosphorus transporter gene and an encoding protein thereof in improving nutrient utilization efficiency and rice quality. According to the invention, OsPHT1 is mutated or inhibited; 1 gene expression can significantly improve nutrient utilization efficiency and rice taste quality and nutritional quality. The method is mainly embodied in that accumulation of nitrogen and phosphorus nutrients of rice is remarkably reduced, the total protein content, glutelin content, prolamin content, globulin content, albumin content and phytic acid content of rice grains are remarkably reduced, the gel consistency of the rice is increased, the reduction value is reduced, and the eating quality and the nutritional quality of the rice are further improved.
Owner:NANJING AGRICULTURAL UNIVERSITY

Method for producing 1b or 1d omega-5 gliadin-deleted wheat

PCT designated stageWO2026142165A1BiotechnologyGenetically modified wheat
The present invention relates to a method for producing 1B or 1D omega-5 gliadin-deleted wheat and wheat produced thereby, and, specifically, to a method for producing and selecting 1B or 1D omega-5 gliadin gene-deleted wheat by using radiation. The method for producing 1B or 1D omega-5 gliadin-deleted wheat, according to the present invention, enables the production of a radiation breeding-based non-GMO mutant wheat or wheat breeding parental line while retaining agronomic traits similar to those of a wild-type wheat variety, and thus wheat with reduced toxicity to wheat-dependent exercise-induced anaphylaxis (WDEIA) can be produced for use in the production of processed wheat foods and the like, or a parental line for breeding wheat varieties with reduced toxicity to WDEIA can be produced.
Owner:REPUBLIC OF KOREA (MANAGEMENT RURAL DEV ADMINISTRATION)

Nickel-based positive electrode material as well as preparation method and application thereof

The invention belongs to the field of battery materials, and discloses a nickel positive electrode material and a preparation method and application thereof.The preparation method comprises the steps that a polycrystalline precursor of NixM1-x (OH) 2, a lithium source, glutenin and gliadin are ground and mixed, and mixed powder is obtained; mixing the solvent and the mixed powder to obtain slurry, and drying to obtain a mixture; and pre-sintering the mixture in an oxygen atmosphere, and then heating and roasting for a certain time to obtain solid particles, namely the nickel-based positive electrode material. By adding glutenin and gliadin and combining with a roasting process, primary crystal grains of a polycrystalline precursor of NixM1-x (OH) 2 continuously grow in the roasting process, so that the prepared nickel-based positive electrode material is of a submicron single-crystal structure, the specific surface area of the positive electrode material is reduced, the possibility of side reaction is reduced, and the service life of the positive electrode material is prolonged. The structural stability of the positive electrode material can be further improved, the cycle performance of the battery is finally improved, and the volume energy density of the battery is increased.
Owner:CENT SOUTH UNIV

Use of a corn protein formed into a coagulum or coagulum suspension by liquid-liquid phase separation in a bio-based glue or coating

PendingCN122302819AFluid phaseAdhesive glue
This invention discloses the application of corn protein coagulants or suspensions formed through liquid-liquid phase separation in bio-based adhesives or coatings. The preparation includes: dissolving corn gliadin or crude corn protein powder in a 70-90% v / v ethanol aqueous solution, removing impurities, adjusting the ethanol concentration to 40-60% v / v with water, and inducing phase separation to obtain coagulants; or directly adding corn gliadin to a 40-60% v / v ethanol aqueous solution and stirring to form coagulants. The resulting product is used as a bio-based adhesive for bonding sheet or paper-based materials, or as a coating to impart water / oil barrier properties to paper-based materials. This invention utilizes corn protein coagulants to achieve excellent adhesive performance and water resistance without crosslinking agents. The product is completely biodegradable, providing a green solution for replacing traditional plastic coatings and solving sheet bonding problems.
Owner:YOUJIE BIOPOLYMER CO LTD

Preparation method of antioxidant procoagulant bifunctional sponge

The application discloses a preparation method of antioxidant and pro-coagulation double-function sponge, and comprises the following steps: preparing an ethanol solution, adding corn alcohol-soluble protein to dissolve in the ethanol solution, adding deionized water with the same volume as the ethanol solution to perform reverse precipitation and ultrasonic dispersion, removing half volume of the solution in the dispersion liquid by rotary evaporation, adding glutaraldehyde aqueous solution to perform cross-linking, and obtaining cross-linking pro-coagulation nano-particle dispersion liquid; dissolving gelatin in hot water, stirring and dissolving at a low speed, adding glutaraldehyde, improving the rotating speed to perform chemical cross-linking, stopping foaming until uniform and stable foam is obtained, and obtaining foaming gelatin solution; pouring the obtained foaming gelatin solution into the cross-linking pro-coagulation nano-particle dispersion liquid, and obtaining antioxidant / pro-coagulation double-function sponge after freeze-drying; the volume fraction of the ethanol solution is 60-70%; the concentration of the corn alcohol-soluble protein solution is 10-50 mg / mL; and the volume ratio of the cross-linking pro-coagulation nano-particle dispersion liquid and the gelatin solution is 1:10-1:90.
Owner:BEIJING UNIV OF CHEM TECH +1

Method for improving crispness of fried dough twists added with prolamin by using eutectic amylose

And removing prolamin in the vital gluten by using a conventional alcohol extraction method to obtain glutenin. When the alkali-soluble glutenin is prepared, the mixing ratio of glutenin to a 0.1% NaOH solution is 1: 25 (g: mL), stirring and dissolving are performed at 30 DEG C for 120 minutes, and then centrifugation is performed to obtain the alkali-soluble glutenin. The method comprises the following steps: mixing amylose with a 20% NaCl solution according to a ratio of 1: 5 (g: mL), carrying out eutectic crystallization at 4 DEG C for 36 h, carrying out water washing for 3-5 times, and carrying out centrifugation to obtain the eutectic amylose. The prepared alkali-soluble glutenin and the eutectic amylose are respectively added according to the proportions of 8% and 2%-10% of the flour to prepare mixed powder, the addition amounts of the yeast and the salt are respectively 1-5% and 0.5-3% of the amount of the mixed powder, and the fried dough twist dough is prepared. And fermenting at 35-45 DEG C for 10-15 minutes, and kneading into strips for forming. And frying at the temperature of 150-170 DEG C for 8-10 minutes to obtain the fried dough twist with reduced oil content.
Owner:TIANJIN UNIV OF COMMERCE

Systems and methods for protein recovery

ActiveUS12543758B2MembranesUltrafiltrationBiotechnologyProtein species
The present disclosure provides systems and methods for the recovery of protein species from wet mill grain process streams. Systems and methods of the present disclosure may be integrated with a wet mill grain process to separate out protein species that may limit efficiency of the grain process and produce one or more product streams comprising these separated protein species. A feed stream may be fractionated by at least two membranes into retentate and permeate streams. Removing larger proteins through the membrane fractionation may allow previously soluble prolamin products in the permeate stream(s) to precipitate. The recovered protein species may include prolamin, such as zein from a corn grain feed.
Owner:SOLECTA INC

A fried food coating with controlled release properties and its preparation method and application

The present invention discloses a fried food coating with controlled release performance, a preparation method and an application thereof, and belongs to the technical field of fried foods. The preparation of the fried food coating with controlled release performance of the present invention includes: compounding a coagulant polysaccharide with carboxymethyl chitosan to obtain a composite polysaccharide solution; uniformly mixing alcohol-soluble protein with polyphenol to obtain an alcohol-soluble protein-polyphenol blended solution; then dripping the alcohol-soluble protein-polyphenol blended solution into a genipin solution to perform a self-assembly reaction to obtain an alcohol-soluble protein-polyphenol complex solution; then dripping the alcohol-soluble protein-polyphenol complex solution into the complex polysaccharide solution to perform an amino cross-linking reaction, thereby obtaining a fried food coating with controlled release performance. The coating has excellent antioxidant properties at room temperature and can extend the shelf life of fried foods; during high-temperature frying, the rapid release of active ingredients can be achieved, which can better maintain the safety and quality of fried foods.
Owner:JIANGNAN UNIV

A method for quantitatively determining the binding force between rice starch granules and proteins and their components

The present invention relates to a method for quantitatively determining the binding force between rice starch granules and proteins and their components in the field of agricultural product analysis technology. It sequentially measures the binding force between albumin, globulin, glutelin, and prolamin and starch granules, and finally calculates the average value to obtain the binding force between starch granules and total protein, and uses this value to evaluate or improve the taste and texture of rice foods. The larger the C value, the greater the binding force between starch granules and proteins, and the better the viscosity and elasticity of starch granules. This method is not limited to measuring the binding force between starch granules and total protein in rice, but can also be used for measuring the binding force between starch granules and total protein in other grains, such as wheat, corn, millet, etc.
Owner:YANGZHOU UNIV

Zein-curcumin-resveratrol composite membrane as well as preparation method and application thereof

The invention relates to the technical field of preparation of food preservative films, in particular to a zein-curcumin-resveratrol composite film and a preparation method and application thereof.The preparation method comprises the steps that zein and curcumin are dissolved in ethyl alcohol and then mixed with water, a resveratrol solution is dropwise added, stirring is conducted, and the zein-curcumin-resveratrol composite film is obtained; adding a chondroitin sulfate solution, homogenizing to form a nano suspension, finally blending with a gelatin solution, degassing, and drying to form the film. The composite membrane has good mechanical property, excellent water vapor and oxygen barrier property and remarkable hydrophobic property, and meanwhile, has lasting antioxidant and antibacterial functions by virtue of the slow release effect of curcumin and resveratrol. When used for packaging fresh food, especially aquatic products, the food packaging material can effectively inhibit lipid oxidation, protein degradation and microbial growth, and can significantly prolong the shelf life of food. All the components are natural, degradable, safe and environmentally friendly, and a new way is provided for high-performance active food packaging materials.
Owner:ANALYSIS & TESTING CENT CHINESE ACADEMY OF TROPICAL AGRI SCI

Reduced gliadin wheat event t258

The present invention relates to a transgenic wheat event, which we have designated T258, that leads to reduced gliadin content, as well as cells, seeds and plants that comprise the event. The invention also relates to methods for detecting the presence of the T258 event, probes and primers for use in the method and methods of breeding with T258 to produce wheat with reduced gliadin content.
Owner:CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS (CSIC)

A gene qPro7 that regulates the content of gliadin in rice grains and its application

PendingCN122302023ABiotechnologyGliadin
This invention discloses a gene that regulates the content of gliadin in rice grains. qPro7 This invention relates to the fields of genetic engineering and plant molecular breeding, and its applications. The amino acid sequence of the gene is shown in SEQ ID NO.1. Through genome-wide association analysis, this invention identified and cloned the gene on rice chromosome 7. qPro7 By constructing genes qPro7 Knockout vectors and self-promoted overexpression vectors were used to transform rice, and the results showed that knockout vectors... qPro7 The gene can significantly reduce the content of prolactin in rice grains, while overexpression qPro7 The gene significantly increases the content of prolamins in rice grains; this invention provides new genetic resources for the genetic improvement of rice quality, especially the regulation of protein content, and has important application value.
Owner:YANGZHOU UNIV

Automatic device for extracting prolamin from distillers' grains

The utility model relates to an automatic device for extracting alcohol soluble protein from distillers' grains. The automatic device aims at efficiently extracting the alcohol soluble protein from the distillers' grains. The process comprises the following steps: receiving bran-containing vinasse from a vinasse pool, heating the vinasse into dry vinasse through a combustion pool, and conveying the dry vinasse to a screening device through a first conveyor belt; the screening device separates bran hulls from vinasse, the bran hulls are conveyed to the combustion pool through the second conveying belt, and the vinasse is stored in the storage bin. The vinasse in the storage bin is pulverized into powder by the pulverizing machine, the powder is conveyed to the stirring device and stirred in the alcohol solution, so that the alcohol-soluble protein is dissolved into the solution, and insoluble waste is also conveyed to the combustion pool through the second conveying belt. The alcohol solution containing the alcohol-soluble protein is stored in the pre-storage tank and then enters the drying machine, alcohol steam and the alcohol-soluble protein are separated out, and the alcohol-soluble protein is stored in the finished product storage tank. Alcohol steam is converted into alcohol liquid through the condensing device, the alcohol liquid is stored in the alcohol reflux tank, and the alcohol liquid flows back to the stirring device to be recycled after the concentration and the volume of the alcohol solution are adjusted through the storage tank. According to the device, all links are tightly matched, the full-automatic process from vinasse receiving, treatment and alcohol-soluble protein extraction to alcohol recycling is achieved, the alcohol-soluble protein extraction efficiency is improved, waste and alcohol are reasonably recycled, the cost is reduced, meanwhile, environmental pollution is reduced, and remarkable economic and environment-friendly benefits are achieved.
Owner:SOUTHWEST MEDICAL UNIV

Pickering double emulsion and preparation method thereof

The invention belongs to the technical field of colloid and interface chemistry, and discloses a Pickering double emulsion and a preparation method thereof.The preparation method comprises the steps that enzymatic oxidation lignin is prepared on the basis of ball-milling activated lignin, alcohol-soluble protein-enzymatic oxidation lignin turbid liquid is prepared on the basis of alcohol-soluble protein ethanol water and the enzymatic oxidation lignin, and the Pickering double emulsion is obtained. A ternary composite nano dispersion liquid is prepared based on a carboxymethylated beta-glucan aqueous solution and a prolamin-enzymatic oxidation lignin suspension, an oil cake precipitate is obtained based on a curable oil phase and the ternary composite nano dispersion liquid, and a Janus particle dispersion liquid is prepared based on the oil cake precipitate and 2-morpholinoethanesulfonic acid. Obtaining an inner water phase / oil phase / outer water phase type Pickering double emulsion based on the Janus particle dispersion liquid, the inner water phase, the oil phase and the outer water phase; the method disclosed by the invention can show excellent stability and interface regulation and control capability.
Owner:SHAANXI UNIV OF SCI & TECH