115 results about "Protein materials" patented technology

The invention relates to a silk fibroin biological material with high beta-fold content and a preparation method thereof, and belongs to the technical field of biological extraction. The method comprises the following steps: preparing a regenerated silk fibroin solution; adding an enzyme catalytic promoter and an enzyme into the regenerated silk fibroin solution for incubation; the enzyme catalysis auxiliary agent is selected from one or more of a metal ion catalyst, a zwitterionic surfactant, a functionalized ionic liquid and a calcium phosphate nano-cluster; and centrifuging, cleaning and drying the obtained product to obtain the silk fibroin biological material with high beta-fold content. The silk fibroin material has higher beta-folding amount through primary structure modification, the space structure is more crystallized, and the amino acid sequence is more regular and ordered. The silk fibroin material provided by the invention has excellent mechanical properties, efficiency and yield, and is a biological protein material with great development potential.

Provided is a flavor deterioration inhibitor that, when used in a beverage, suppresses flavor deterioration caused by the storage environment, especially flavor deterioration caused by light irradiation, without adversely affecting the original flavor of the beverage. Also provided is a beverage including said flavor deterioration inhibitor.　A flavor deterioration inhibitor that is for food and drink and includes a protein material having the following properties A and B is used. Alternatively, by configuring a beverage to include 10-1,500 ppm of said protein material, flavor deterioration caused by the storage environment can be suppressed. (A) An aqueous solution including a crude protein amount of 20 mass% has a viscosity of 10,000 mPa∙s or less when measured at 25ºC after having been heated at 80ºC for 30 minutes. (B) The 0.22 M TCA solubilization is 30%-95%.

The invention discloses chocolate sandwich cheese and a preparation method, the chocolate sandwich cheese comprises a cheese sandwich and a chocolate layer, and the chocolate layer is coated on the outer side surface of the cheese sandwich; the cheese sandwich comprises cheese; white granulated sugar; a protein material; trehalose; milk powder; a calcium raw material; an emulsifying salt; and an emulsion stabilizer. The chocolate sandwich cheese prepared from the components is stable in cheese system, free of massive oil and water separation, free of chocolate melting deformation, good in taste and convenient to store and transport.

The application belongs to the technical field of food processing, and particularly relates to an oat protein-pectin-proanthocyanidin compound and a preparation method thereof. The oat protein is mixed with water, and an alkali liquor is added to adjust the pH to obtain a protein material solution for medium grinding. Then, pectin is added to the ground protein material solution, and proanthocyanidin powder is added after the pH is adjusted, and secondary medium grinding is performed to obtain an oat protein-pectin-proanthocyanidin solution. Then, hydrochloric acid is slowly added to adjust the pH to 6.8-7.0. Finally, the protein solution is centrifuged, and the supernatant is spray dried to obtain the oat protein-pectin-proanthocyanidin compound. The oat protein-pectin-proanthocyanidin compound prepared by the method is a brand-new protein system, and solves the problems of poor dispersibility, nutritional defects and poor emulsifying property of oat protein, and has a wide application prospect.

The invention discloses a preparation method of a chemical fiber containing silk protein, and relates to the technical field of fiber preparation, and the preparation method comprises the following steps: firstly, pretreating and modifying a silk protein raw material, and grinding through an ultralow-temperature sectional ball mill to obtain silk protein powder; mixing the silk protein powder with spinning lubricating oil to form a stable silk protein spinning lubricating oil mixed solution; the preparation method comprises the following steps: melting a base material, adding a fibroin spinning lubricating oil mixed solution, and granulating through an extrusion granulator to obtain a master batch containing fibroin powder; melting the base material, adding the master batch containing the silk protein powder, and then spinning to finally obtain the chemical fiber containing the silk protein, according to the preparation method of the chemical fiber containing the silk protein, the silk protein material is implanted into the fiber to ensure that the silk protein stably and lastingly exists in the fiber, so that the durability of the fabric is enhanced, the attractiveness of the fabric is improved, and the concepts of environmental protection and sustainable development are met.

The present invention relates to a polymer composite material comprising: a. a biodegradable polymer in an amount of 1 to 98% by weight of the total weight; b. micronized feldspar in an amount of at least 1% by weight of the total weight; c. a starch and / or protein-containing material in an amount of at least 1% by weight of the total weight; d. optional additives; and e. an optional plasticizer for the starch and / or protein-containing material in an amount of less than 5% by weight of the starch and / or protein-containing material.

The present invention has been made to solve the above-described problems of conventional MP whey, and an object of the present invention is to provide a protein material containing MP whey, which can be prepared by a simple method, does not contain extra additives, and has a wide range of applications, and a method for producing the protein material.SOLUTION: The present invention provides a method for producing a protein material containing MP whey, the method including: (1) a step of preparing a whey solution having a protein concentration of 11 mass% or less and a solid content concentration of 19 mass% or less; and (2) a step of shearing the whey solution prepared in the step (1) at 70 °C or higher and 95 °C or lower. The present invention also provides a protein material containing MP whey, wherein the MP whey has a median diameter of 2 μm or more and 9 μm or less, and the ratio of the mass of the MP whey protein to the mass of all proteins is 40% or more and 85% or less.SELECTED DRAWING: None

The invention discloses a thermoplastic starch-based biomass composite material, a product and a preparation method. The thermoplastic starch-based biomass composite material or product comprises 70%-84% of a biomass material, 16%-24% of N-methylmorpholine-N-oxide and 0%-8% of urea. The biodegradable plastic also can contain one or more of an inorganic filler, a biomass derived material and a biodegradable synthetic polymer. The biomass material can be one or more of a starch material, a cellulose material, a protein material and a chitin material. The mass ratio of the N-methylmorpholine-N-oxide to the urea is preferably (3: 1)-(1: 1). The thermoplastic starch-based biomass composite material is prepared by thermoplastic melting, mixing and extruding, and a product is prepared by thermoplastic extrusion or thermoplastic injection molding. The thermoplastic starch-based biomass composite material and the product are completely biodegradable, excellent in mechanical property and low in cost, and the preparation method is simple, convenient and feasible.

The invention relates to a microneedle electrode and wearable equipment, the microneedle electrode comprises a microneedle body, the microneedle body comprises a contact part used for making contact with the skin, the contact part is made of a composite silk protein material, and the contact part is made of a composite silk protein material; the composite silk protein material is formed by compounding a polymer, a metal nanowire and silk protein through mesoscopic hybridization. And a flexible substrate layer, wherein the flexible substrate layer is electrically connected with the microneedle body. The microneedle electrode has the advantages of being low in contact resistance, high in sensitivity, tight in attachment, flexible, skin-friendly, stable, durable, capable of being comfortably worn for a long time and the like.

The utility model relates to the field of grinding devices, in particular to a protein extracting and grinding device with a multi-stage grinding function, which comprises a grinding box, a grinding component, an extracting component, a guide hopper, foot columns and foot seats, an existing protein extracting and grinding device is arranged to be of a multi-stage grinding structure, materials are ground stage by stage through the targeted grinding structure according to the particle size of the protein materials, the protein materials can be fully and evenly ground, the grinding effect is better, the materials can be fully refined in a multi-stage grinding mode, and the protein extracting and grinding efficiency is improved. A first grinding roller, a second grinding roller and a third grinding roller are arranged on the grinding assembly, so that the protein materials can be subjected to graded grinding, step-by-step grinding is carried out through three different grinding structures, the grinding effect can be better, and the grinding efficiency is improved; therefore, the protein in the ground material can be extracted more easily by the extraction assembly, and the overall extraction efficiency can be improved.

The novel plant protease modification production system comprises a material conveying and processing channel, wherein the material conveying and processing channel is formed by sequentially connecting a steam ejector, an enzymolysis pipeline static mixer, an enzymolysis tank, an enzymolysis maintaining tank, an enzymolysis discharge pump, an acid precipitation pipeline static mixer, an acid precipitation tank, an acid precipitation maintaining tank and an acid precipitation discharge pump through pipelines; a material inlet of the steam ejector is connected with an alkali-soluble protein material liquid conveying pipeline, a steam inlet of the steam ejector is communicated with the steam conveying device through a pipeline, liquid inlets of the enzymolysis pipeline static mixer and the acid precipitation pipeline static mixer are both connected with an acid liquid pipeline, and the top of the enzymolysis tank is connected with an alkali protease pipeline. The alkaline protease is directly and quantitatively added into the enzymolysis tank for enzymolysis reaction. According to the device disclosed by the utility model, an enzymatic modification process of vegetable protein is introduced into a vegetable protein preparation process, so that the modification efficiency of the vegetable protein is improved, the whole production is more continuous, and the number of equipment increased due to introduction of an enzymatic modification production system is reduced to the greatest extent.

The invention relates to a soil conditioner for improving saline-alkali soil as well as a preparation method and application thereof, and relates to the technical field of agricultural soil improvement, and the conditioner comprises furfural residues, a deadwood fermented organic fertilizer, a microbial agent, a protein material and calcium superphosphate. Experimental results show that the conditioner can significantly improve the physical structure of saline-alkali soil, the porosity is increased to 90% or above, the field moisture capacity is increased by 40-80%, and the soil moisture content is greatly increased. Meanwhile, in planting of saline-alkali tolerant plants such as caragana microphylla and Sadong green, the seedling rate of the F2 group formula applying the conditioner is increased to 45-55%, and growth indexes such as plant height, stem diameter and root development of the plants are remarkably superior to those of a control group. The method realizes resource utilization of industrial wastes, has the advantages of good improvement effect, low cost, environmental friendliness, simple process and the like, and is suitable for rapid improvement and ecological restoration of the saline-alkali soil.

To provide a composition for improving the sensation of oiliness in processed foods.SOLUTION: A composition that comprises a protein material and / or a starch material and water has been discovered to improve the sensation of oiliness upon eating when blended into a processed food, by containing an oil or fat satisfying condition (A) below. (A) The total content of saturated fatty acids having 16 to 22 carbon atoms in the constituent fatty acid composition is 37 to 52 mass%.SELECTED DRAWING: None

The application discloses an ionic liquid functionalized eggshell membrane protein material and a preparation method and application thereof, and belongs to the technical field of biological piezoelectric materials. The eggshell membrane is pretreated and then grinded into powder; the eggshell membrane powder is treated with a NaOH solution and then cleaned to neutral; the eggshell membrane powder is dissolved in an aqueous solution of 3-mercaptopropionic acid and acetic acid to react, the pH is adjusted to an isoelectric point, and a precipitate is collected and dried to obtain soluble eggshell membrane; the soluble eggshell membrane is added into ionic liquid and fully stirred and dissolved to obtain an eggshell membrane protein solution; dialysis and freeze-drying are performed to obtain ionic liquid functionalized eggshell membrane protein; and the ionic liquid functionalized eggshell membrane protein is redissolved in an aqueous solution, subjected to static defoaming, dried, and immersed in anhydrous ethanol for cross-linking to obtain an ionic liquid functionalized eggshell membrane protein film. The eggshell membrane protein film prepared by the application has good mechanical properties, high thermal stability and piezoelectricity, and the degradable protein material can be applied to the fields of biological tissue engineering, intelligent sensing and energy collection.

The application discloses a method for producing polypeptide amino acids by high-temperature and high-pressure cracking of protein materials and a production device thereof. The method comprises the following steps: loading the protein materials into a sealed cooking pot; outputting 180-300 DEG C and 18-30 kg of treatment steam through combined regulation of a steam boiler, heat-conducting oil and a piston pump; and cracking the protein into polypeptides through pressure-keeping cooking and instantaneous pressure relief flash explosion. Different temperature and pressure parameters are adopted for bone, meat and plant materials. The treatment steam contains small droplets, which can prevent the material from being carbonized at high temperature. The polypeptide production time is shortened to 30-60 minutes, enzyme preparation is not needed, the raw material adaptability is high, waste heat recovery is realized, waste gas emission is reduced, and the method has the advantages of high efficiency, low cost and environmental protection.

The purpose of the present invention is to provide a material for improving the flavor persistence of food and beverages.　The present inventors discovered that an oil-in-water emulsion that comprises a protein material having specific properties and that has an emulsion particle diameter of 100 nm or smaller has an excellent effect in improving flavor persistence of food and beverages.

The present invention provides a textured plant protein defined as a fibrous plant protein material having a protein content of at least 40 wt.% relative to dry matter wherein the textured plant protein is prepared by extruding a feed composition at a moisture content of 18.1-25.9 wt.%, the feed composition comprises: a) a source of plant protein from seeds, cereals, algae, fruits, leaves or legumes, comprising at least 65 wt.% of plant protein relative to dry matter; and b) a source of tuber protein comprising at least 75 wt.% of tuber protein relative to dry matter, and c) a filler, In addition, the invention provides food products comprising the TVP of the invention, as well as methods for obtaining these products, and the use of TVP in food products to replace meat of animal origin.

The present disclosure describes compositions, kits and methods for promoting regeneration of dental tissue, particular dental pulp tissue. In some embodiments, a composition for promoting regeneration of dental tissue includes a dentin extracellular matrix material (dECM). In some embodiments, the dECM comprises dentin matrix proteins having an origin selected from human, ovine, porcine, and bovine.

Provided is a plant milk for foaming, which contains a plant milk and a protein material having the following properties (A) and (B). (A) After an aqueous solution of the protein material in an amount of 20 mass% in terms of crude protein contained in the protein material is heated at 80 DEG C for 30 minutes, the aqueous solution has a viscosity of less than 100,000 mPa * s at 25 DEG C. (B) The protein material has a 0.22 M TCA solubilization rate of 10% to 95%.

The disclosure relates to corn product and a method of making the same. The corn product has about or less than 1 wt% ethanol and a loss on drying in a range of about 3 – 9 wt% on a dry basis. A method of removing ethanol from a protein material is also disclosed herein.

The invention relates to the technical field of food processing, in particular to an intelligent protein material cooling and conveying device for soybean protein processing, which comprises a support fixedly connected with a conveying groove body and a driving motor; the conveying part is rotationally arranged in the conveying groove body, the conveying part is fixedly connected with an output shaft of the driving motor, spiral blades on the conveying part are divided into three sections, and gaps are formed among the three sections of spiral blades on the conveying part; the shell is fixedly connected to the bottom of the conveying groove body, and the shell and the conveying groove body jointly form a cavity; the first guide pipe is communicated with the shell; and the second guide pipe is communicated with the shell. The cooling water is injected into the cavity between the shell and the conveying tank body, and the cooling water is controlled to continuously flow in the cavity, so that the cooling water quickly takes away heat accumulated in the conveying tank body, the temperature rise of materials is remarkably inhibited, and the materials are prevented from going bad.

A process for extracting proteins from photosynthetic biomass. The process comprises to mix a photosynthetic biomass sample with an aqueous surfactant-containing solution, to extract proteinaceous material from the photosynthetic biomass sample, to separate the proteinaceous material into a liquid phase comprising solubilized proteins and a solid phase comprising non-soluble material. The formed solid phase is then mixed with a protein extraction solution, proteinaceous material is extracted from the solid phase and the proteinaceous material is separated into a liquid phase comprising solubilized proteins and a solid phase comprising non-soluble material. The two formed liquid phases with solubilized proteins produced in the process are collected.

The invention provides a copper calcium phosphate nano-enzyme fibroin antibacterial dressing as well as a preparation method and application thereof, and belongs to the technical field of material preparation. CCP HNS nano-enzyme with ascorbic acid oxidase is prepared through a coprecipitation method, nano-enzyme particles with controllable morphology, stable structure and excellent catalytic performance are obtained by regulating and controlling the ratio of copper to calcium and reaction conditions, and then the nano-enzyme particles are uniformly loaded on a natural protein material silk fibroin (SF), so that the nano-enzyme is prepared. The calcium copper phosphate nano-enzyme fibroin antibacterial dressing is obtained; the copper calcium phosphate nano-enzyme fibroin antibacterial dressing has an excellent antibacterial effect, is relatively low in cytotoxicity, maintains good cell viability and shows good biocompatibility; the copper calcium phosphate nano-enzyme fibroin antibacterial dressing has obvious advantages in the aspects of infection control, inflammation relief and tissue regeneration, can greatly shorten the wound closing time, shows good healing promoting ability, and has good practicability.

A secondary molding device for meat substitutes obtains a secondary molded product by heating a minced protein material in a pressurized state to bond protein components of the minced material and mold the same into a desired shape. The secondary molding device for meat substitutes includes a sealed pressurizing and heating chamber. The secondary molding device for meat substitutes includes a pressurizing device that pressurizes the minced material filled in a lower mold in the pressurizing and pressurizing and heating chamber at a predetermined pressure, and a high frequency power supply device that, within 300 seconds, supplies a high frequency current to the material in the pressurizing and heating chamber in accordance with the type of material to heat the material at a temperature of 110° C. or higher and 140° C. or lower.

The present invention provides a meat-like protein material in which "squeakiness" is reduced without impairing mouthfeel or flavor similar to that of meat, gluten being used as a main raw material of the meat-like protein material.　The present invention is characterized in that: a meat-like protein material contains gluten, and also contains, per 100 parts by mass of the gluten, 0.2-3 parts by mass of dietary fiber derived from wheat kernel, 0.08-0.7 parts by mass of a protein other than gluten derived from wheat kernel, and 2.5-20 parts by mass of a plant protein or animal protein other than protein derived from wheat; the plant protein is at least one selected from the group consisting of pea protein, fava bean protein, chickpea protein, and pumpkin seed protein; and the animal protein is at least one selected from the group consisting of whey protein and egg white protein.

A cell therapy structure and method, including a matrix of fibers of a proteinaceous material and an electrically conductive material. The aligned fibers are spun from a combination the electrically conductive material, such as carbon nanotubes, and a fibroin material or a collagen material. A method of tissue engineering includes seeding a cell culture on a matrix of electrically conductive protein fibers, applying an electric current to the matrix to stimulate the cell culture, and applying the simulated cell culture to a tissue.

This invention belongs to the fields of genetic engineering and materials genomics, and discloses a method for constructing silk proteins with target material properties using materials genomics, as well as silk proteins and silk protein materials with target material properties prepared by this method. This invention uses materials genomics methods to screen, analyze, and study the material properties of silk proteins. Compared with traditional methods, this method reduces research costs and time, greatly accelerates the preparation and development of silk protein materials, and can produce silk protein materials with different morphologies and properties.

The application belongs to the field of protein materials, and particularly relates to a mussel protein self-assembled adhesive coating and a preparation method and application thereof. The mussel protein self-assembled adhesive coating is obtained by standing a mixed solution of mussel protein and metal ions, and the specific preparation steps are as follows: dissolving mussel protein in an acetic acid solution to obtain a mussel protein solution, adding a solution containing metal ions to the mussel protein solution to obtain a mixed solution, and finally standing the mixed solution to obtain the mussel protein self-assembled adhesive coating. The mussel protein self-assembled adhesive coating is directly prepared by ion-induced protein self-assembly, and has the advantages of simple preparation process and easy operation. The prepared mussel protein coating not only has excellent moisture resistance, but also has good biocompatibility and biodegradability, and has the potential to be an ideal protein-based adhesive material.

The purpose of the present invention is to provide: a food product substitute for a baked egg food product, the food product substitute having excellent texture and flavor; and an egg substitute that enables the production of this food product substitute. The inventors discovered that a baked egg food product having excellent texture and flavor can be produced when water, a protein material, an oil / fat, and a specific gelling agent are mixed and used as an egg substitute.

Provided herein are methods and compositions for purifying antibodies. Purification is achieved by increasing the binding capacity of protein A chromatography by covalent attachment of a protein A domain (E, D, A, B, C), or domain Z, or a functional variant thereof, to Drosophila melanogaster transcription factor Ultrabithorax (Ubx) materials. The compositions include fusion proteins containing Drosophila melanogaster transcription factor Ultrabithorax (Ubx) or a fragment thereof and an immunoglobulin binding protein. In some embodiments, the immunoglobulin binding protein is a protein A domain, a protein Z domain or a fragment thereof.