121 results about "Starch granule" patented technology

The invention provides infant rapid brewing rice flour based on enzymolysis and superfine water grinding and a preparation method thereof, and belongs to the technical field of food processing. Rice is subjected to raw material differential temperature pretreatment and multi-stage hydration pulping, and a stable three-dimensional microscopic network structure with starch particles as filler and soluble protein and colloid as a continuous phase is constructed; then, food-grade lactic acid bacteria pre-fermentation is combined with sequential action of various enzymes, and starch and protein are subjected to mild directional hydrolysis under the condition of simulating dynamic pH of gastrointestinal tract digestion, so that the nutritional and digestible infant healthy rice flour is prepared, and the problems that the rice flour is easy to agglomerate, non-uniform in dispersion and low in nutritional value during brewing are solved. The digestion and absorption efficiency of macromolecular nutrient components such as starch and protein is relatively low, and the nutrition and flavor of the product mainly depend on exogenous addition, so that the naturalness and functionality are insufficient. The rice flour disclosed by the invention has excellent reconstituability and nutrient absorption rate, and is suitable for being used as a healthy nutritional complementary food for infants of 6-36 months.

To provide a technology for manufacturing a spring roll skin having good palate feeling even when a relatively long time passed not only just after fried but also after fried.SOLUTION: A spring roll mix includes wheat flour passing through a sieve having an opening of 24 mesh; and granule passing through a sieve having an opening of 6 mesh and also not passing through a sieve having an opening of 24 mesh. The granule comprises at least one kind selected from grain, a grain ground product, starch grain, an instant noodle crushed product, a dried noodle crushed product, bread powder and a swollen substance crushed product. The content of the granule in the spring roll mix is 2-35 pts.mass based on 100 pts.mass of wheat flour.SELECTED DRAWING: None

The invention discloses a preparation method of a regulatable and degradable ecological environment-friendly nutrition cup, and belongs to the technical field of biodegradable materials and garden seedling raising containers. Aiming at the technical problems of insufficient long-term supporting strength, mismatch between degradation rate and seedling growth cycle and low fiber axial enhancement efficiency of a garden seedling nutrition pot, the invention provides a solution for regulating and controlling through interface enhancement and gradient degradation. Adding a nanoscale inorganic filler, sodium alginate, a sterilizing agent, a rooting accelerant and potassium humate, and performing staged temperature-controlled stirring to form a phase separation structure; carrying out twin-screw extrusion and directional molding to obtain a cylindrical green body in which starch particles are wrapped by a polylactic acid continuous phase network and fibers are axially arranged; a polycaprolactone and polyhydroxyalkanoate blending coating is adopted, and a controllable degradation layer is formed on the surface through ultraviolet radiation gradient crosslinking. The nutrition bowl prepared by the method has the characteristic of precise and controllable degradation period, and is suitable for containerized seedling culture of large garden seedlings.

This invention discloses a rice starch synthesis-related gene, OsFLO17, its encoded protein, and its applications. Through phenotypic analysis of the rice endosperm mealy mutant flo17 and preliminary localization of the target gene, the starch synthesis-related protein OsFLO17 was ultimately cloned. This protein consists of the amino acid sequence shown in SEQ ID NO.3. The starch granule development-related protein of this invention affects the rice endosperm starch synthesis process. Introducing the encoding gene of this protein into plants with abnormal starch granules can yield transgenic plants with normal starch filling. Therefore, the protein and its encoded gene of this invention can be applied to plant genetic improvement.

The invention belongs to the field of biomass-based functional materials, relates to a difunctional coating based on enzymolysis modified cassava starch as well as a preparation method and application of the difunctional coating, and innovatively solves the technical problem that a single coating gives consideration to oil prevention and water absorption through a synergistic technical path of pretreatment and composite enzymolysis. The core mechanism is as follows: the starch particle structure is destroyed through pretreatment, and the degradation degree of starch is accurately controlled through the synergistic effect of alpha-amylase and saccharifying enzyme, so that an unexpected technical effect is achieved, and an enzymolysis product with a film-forming skeleton (medium molecular weight dextrin) and a hydrophilic unit (small molecular saccharide) is formed; meanwhile, a compact and continuous network structure can be formed by a film-forming framework, and grease permeation is blocked; and the hydrophilic unit endows the coating with a rapid capillary water absorption effect.

The invention discloses a rice cake capable of regulating postprandial blood sugar and inhibiting starch aging, and belongs to the field of food processing and preservation. The rice cake is prepared from the following raw materials in parts by mass: 100 to 300 parts of polished round-grained rice flour, 100 to 200 parts of glutinous rice flour, 5 to 30 parts of pre-gelatinized corn starch, 5 to 30 parts of wheat type B starch granules and 100 to 300 parts of water. The pre-gelatinized corn starch-wheat type B starch composite preservative prepared by mixing the pre-gelatinized starch and the wheat type B starch in proportion can effectively inhibit hardness increase caused by starch aging and retrogradation in the storage process of the rice cake and avoid taste deterioration. Meanwhile, by adding the composite starch, the digestibility rate of the rice cake is remarkably reduced, and the metabolic regulation characteristic similar to that of low glycemic index food is endowed to the product. The characteristic of a cleaning label formed by natural components of the rice highly conforms to the development trend of healthy food, and the rice is especially suitable for functional rice product development of people needing to control postprandial blood sugar fluctuation.

The invention belongs to the field of plant engineering technology and crop germplasm resource innovation, and particularly relates to a rice BEIIb gene mutant, application of the rice BEIIb gene mutant in improving rice resistant starch and an improving method. A mutant material with high resistant starch content is created by knocking out the rice BEIIb gene, and compared with a wild type, mutant seeds show an obvious chalky phenotype, composite starch particles are abnormal in a spherical or ellipsoidal shape, the amylose content is remarkably increased, the protein content is remarkably reduced, the resistant starch content is remarkably increased, and the resistant starch content is remarkably reduced. The hardness of cooked rice is remarkably increased, and the elasticity is remarkably reduced. Through transcriptomics analysis, the protein mainly participates in biological pathways such as carbohydrate metabolism, chloroplast photosynthesis, calmodulin combination and secondary metabolite synthesis, and the expression level of endosperm starch synthesis related genes is obviously changed. The method can provide theoretical basis and method reference for breeding of high-quality rice varieties with high resistant starch.

The utility model discloses stirring equipment for modified starch processing, which relates to the technical field of starch processing and comprises a fixed stirring box, a movable stirring box is detachably mounted at the upper end of the fixed stirring box, a first motor is mounted in the middle of the lower end of the fixed stirring box, and a conical stirring block is mounted at the output end of the first motor and located in the fixed stirring box. A second motor is installed in the middle of the upper end of the movable stirring box, a rotating rod is installed at the position, located in the movable stirring box, of the output end of the second motor, and two scraping plates are installed at the lower end of the rotating rod. The first motor drives the conical stirring block to rotate, the conical stirring block can stir starch particles and a treating agent towards the periphery of the conical stirring block, and meanwhile the second motor drives the scraping plate to scrape the starch particles and the treating agent close to the inner walls of the fixed stirring box and the movable stirring box towards the middle. The starch particles and the treating agent can be mixed and stirred for multiple times.

The invention relates to methods for altering the starch granule composition in starch storage organs. Also described are genetically altered plants characterised by the above phenotype as well as methods of producing such plants.

This invention provides a method for easily producing a starch-containing solid composition for cooking that is less prone to cracking even after prolonged storage at room temperature, using general-purpose equipment, while also improving the powdery texture during consumption. [Solution] A manufacturing method comprising the steps of (i) to (iii). (i) A step of preparing a composition that satisfies predetermined conditions with respect to the content of dietary fiber, starch, and protein, specific surface area per unit volume after ultrasonic treatment, degree of gelatinization of starch, starch granule structure, and molecular weight logarithm. (ii) A step of mixing the composition with water at 40°C or higher so that the dry weight moisture content exceeds 30% by mass. (iii) A step of transporting the composition by extruder under conditions that satisfy (8) to (10). (8) The temperature of the composition in the extruder is 55°C or higher. (9) The specific mechanical energy (SME) value of the extruder is less than 300 kJ / kg, and / or the ratio of the length of the flight section to the total length of the screw is 90% or higher. (10) The pressure in the extruder is 1.5 MPa or higher.

The invention discloses a method for improving the starch digestibility inhibition effect of a spray drying method by using high amylose, and belongs to the technical field of food processing. According to the invention, highland barley glutelin, low-amylose-content corn starch, normal-amylose-content corn starch and high-amylose-content corn starch are selected, and a spray drying technology is used to simulate an embedding structure of protein in a natural grain structure on the surface of starch particles. The method comprises the following steps: dissolving protein in a 0.02% NaOH solution, then adding corn starch with different amylose contents, stirring for 30 minutes, then carrying out spray drying treatment, controlling the addition amount of the protein to be 10% of the total mass of the starch, setting the inlet temperature of a spray dryer to be 170 DEG C, setting the outlet temperature to be 80 DEG C, and controlling the feeding speed of a peristaltic pump to be 35 mL / min; the appearance of the prepared starch sample is similar to the spatial structure in highland barley grains, and the digestibility of the highland barley grains is reduced.

The invention belongs to the field of starch modification, and discloses an ultrasonic-sodium citrate composite modification method of lotus root whole powder and modified lotus root whole powder. The modification method comprises the following steps: mixing lotus root whole powder, sodium citrate and water to obtain a mixture; and sequentially carrying out ultrasonic treatment, freeze-drying and grinding treatment on the mixture to obtain the modified lotus root whole powder. According to the method disclosed by the invention, multi-scale regulation and control on a starch particle crystal structure, an intermolecular acting force, a gelatinization characteristic and a gel network are realized through cooperative treatment of ultrasonic (physical field) and sodium citrate (chemical environment), the modification effect of the lotus root whole powder is remarkably improved, and starch retrogradation is effectively inhibited.

The utility model relates to the field of starch homogenizing processing, and discloses homogenizing equipment for homogenizing starch, which comprises a machine body, a hopper is arranged at the upper part of the right side of the machine body, a stirring component and a vibrating component are arranged on the outer side of the hopper, and the stirring component comprises a fixing piece fixedly connected to the outer side of the hopper. The right side of the fixing piece is fixedly connected with a driving motor, and the upper portion of an output shaft of the driving motor is fixedly connected with a transmission gear. The outer side of the hopper is fixedly connected with a fixed cylinder, and the outer side of the fixed cylinder is rotationally connected with a rotating cylinder. According to the utility model, the transmission gear is driven by the driving motor to rotate, the transmission gear is meshed with the teeth on the rotating cylinder, so that the rotating cylinder drives the stirring rod to rotate in the hopper, and the columnar stirring rod on the outer side can be in full contact with starch in the hopper during rotation to stir the starch and effectively scatter agglomerated starch particles; the uniformity of the starch is improved, and the efficiency of subsequent homogenizing processing is guaranteed.

The application belongs to the technical field of sodium ion battery negative electrode materials, and provides a starch-based hard carbon material and a preparation method and application of gradient oxidation annealing thereof. The preparation method comprises the following steps: sequentially drying and sieving starch to obtain pretreated starch; performing ladder-type oxidation-annealing on the pretreated starch to obtain a precursor; performing carbonization treatment on the precursor to obtain a starch-based hard carbon material; the number of times of ladder-type oxidation-annealing is 2-10; and annealing to room temperature after each oxidation. The application constructs a multistage oxidation layer in the starch phase through ladder-type oxidation treatment; annealing treatment removes stress from starch particles, stabilizes the starch structure, relieves volume shrinkage, prevents starch melting, and is conducive to strengthening the oxidation efficiency of the next gradient oxidation treatment and enhancing the oxidation effect in the starch phase, so that the starch-based hard carbon material with spheroidized particles, inert surface and developed internal closed pore structure is obtained.

The invention relates to the technical field of starch extraction wastewater treatment. The wastewater treatment equipment comprises an extractor, one end of the top of the extractor is fixedly connected with a water pumping pipe, the outlet end of the water pumping pipe is correspondingly connected with a filtering device, the filtering device comprises a driving device, a separating device and a spraying device, and after the driving device is started, the separating device is connected with the spraying device. According to the starch solid-liquid separation device, the top of the separation device can be driven to move in the horizontal direction, solid-liquid separation of starch particles in mixed liquid is achieved through movement of the separation device, and meanwhile, a plurality of spraying devices fixedly connected to the bottom of the separation device conduct synchronous water mist spraying work in the separation process; residual foam on the surfaces of starch particles and in the separation device is eliminated through the impact and dilution effects of the spray water, so that stable operation of a wastewater treatment system is guaranteed.

This invention discloses a clean modification process for yam starch with high slow-digestible starch content, belonging to the field of clean starch modification technology. It aims to solve the problems of existing modification processes relying on exogenous additives, high costs, and difficulty in balancing starch digestibility and stability. This invention uses fresh yam as raw material and obtains a co-precipitation system retaining endogenous mucoprotein through isoelectric point sedimentation. Based on this, vacuum alternating pulsed steam treatment is used, utilizing pressure difference and thermal effects to promote the migration of endogenous proteins at the starch particle interface and construct a stable composite structure. Subsequently, annealing is performed under high humidity conditions to induce ordered rearrangement of molecular chains. This process, without adding exogenous substances, precisely controls the starch structure, significantly increases the slow-digestible starch content, and improves the processing stability of the product. It has advantages such as being green and clean, highly safe, and highly functional.

A method of producing a plant-based beverage is disclosed. The method may comprise circulating a mixture including soaked groats, water, an enzyme to break down starch particles, in a container to undergo a hydrodynamic cavitation, to produce the mixture after the circulation as a plant-based uncentrifuged concentrate having a D90 particle size being less than about 600 microns. It has been determined that under certain embodiments, utilizing an associated holding temperature of about 50° C. to about 80° C., and an associated holding time of from about 5 minutes to about 40 minutes can result in improved product outcomes.

The invention discloses an extraction and separation process of barley endosperm, and belongs to the field of grain extraction. The method specifically comprises the following steps that barley grains are cleaned and smashed in spring, then classified screening, hulling and sorting are conducted, pretreated endosperm powder is obtained through grinding, endosperm separation and drying are conducted, complete barley grains and broken or defective barley grains can be separated through classified screening, and reduction of loss of raw materials in the subsequent hulling and sorting process is facilitated. A separation accelerant is added in the endosperm separation process, calcium ions can react with hydroxyl contained in starch molecules to form a complex structure, the stability of starch particles is enhanced, the sugar alcohol compound can inhibit gelling of the starch molecules, especially amylose, through the competitive effect, the recovery rate of starch in barley endosperm is increased, and the yield of the barley endosperm is increased. And the centrifugal liquid obtained by separation in the separation process enhances the recovery of the by-product beta-glucan under the action of the selective adsorbent, reduces the influence of impurity molecules, and improves the recovery rate and purity of the beta-glucan.

The invention provides an in-situ nano-modified starch-based injection molding material and a preparation method thereof. The preparation method comprises the following steps: firstly, kneading starch and nano-powder in a kneading machine to enable the nano-powder to perform in-situ modification on the starch, then sequentially adding an emulsifier and a coupling agent to perform kneading, finally performing kneading with polypropylene powder and an auxiliary agent, and performing granulation on a mixture through a twin-screw extruder. According to the preparation method, in-situ modification is performed on the nano powder and the starch through the kneading machine, and the nano powder uniformly coats the surfaces of starch particles, so that the thermal stability and the fluidity of the starch particles are improved, yellow spots and black spots generated by oxidation and carbonization in starch processing are effectively reduced, and the appearance is improved.

The application provides a construction method and application of a Toxoplasma gondii attenuated strain PruDelta pp2a-c and belongs to the technical field of biological medicine. The TgPP2A-C gene is knocked out to obtain a TgPP2A-C gene deletion Toxoplasma gondii attenuated strain. After the gene is deleted, a large number of starch granules are aggregated between the bodies of the Toxoplasma gondii, and the Toxoplasma gondii loses the ability to form cysts. The in-vitro proliferation speed and pathogenicity of the TgPP2A-C gene deletion Toxoplasma gondii attenuated strain are significantly reduced compared with those of a wild strain. After being infected with the TgPP2A-C gene deletion strain, a mouse does not get ill or die, and no cysts are detected in the brain tissue of the mouse, so the TgPP2A-C gene deletion strain has high safety to a host. After a mouse is immunized with the TgPP2A-C gene deletion Toxoplasma gondii attenuated strain, the antibody level of the mouse is significantly improved, and the mouse can provide significant immunoprotection efficacy against high-dose Toxoplasma gondii RH tachyzoite and Pru cyst re-infection, and can prevent re-infection of Toxoplasma gondii.

The utility model discloses a soluble starch moisture removing and drying tank which comprises a bottom plate, a drying box is installed on the top of the bottom plate, a drying assembly for drying soluble starch is arranged on one side of the drying box, and a grinding assembly for grinding blocky soluble starch is arranged in the drying box. Through the arrangement of the grinding assembly, the hydraulic cylinder drives the moving plate and the grinding block to move downwards, the grinding block moves to the position above the grinding net, the first motor is started, the first motor drives the grinding block to rotate, and therefore blocky soluble starch remaining above the grinding net is ground and smashed, the grinding assembly can effectively crush agglomerates in the starch, and therefore the starch can be effectively ground. In the drying process, the drying assembly can make more sufficient contact with the starch particles, the drying efficiency is improved, the drying time is shortened, the soluble starch is dried more evenly in cooperation with the stirring assembly, and the production quality of the soluble starch is effectively improved.

The invention relates to the technical field of potato starch processing, in particular to smashing equipment for processing potato starch.The smashing equipment comprises a smashing box, a smashing driving assembly for smashing the potato starch is arranged in the smashing box, and a rigid smashing hammer is fixedly installed at one end of a hinge seat; an elastic hammer sleeve is fixedly installed on the outer wall of the rigid breaking hammer, and concave-convex texture strips simulating goat cheek teeth are fixedly arranged on the roller face of the breaking roller. According to the first layer, through flexible impact of the rigid breaking hammer and the elastic hammer sleeve, large raw materials are broken into medium granularity, and fiber refinement caused by hard impact is avoided; the second layer realizes extrusion and shearing composite crushing through a crushing roller with bionic textures, and directionally destroys residual cell walls of medium-granularity raw materials; the two-stage crushing forms gradient adaptation of first loosening and then fine, so that the problems of insufficient crushing and over-crushing caused by single crushing are avoided, starch particles are fully released, and the extraction rate is increased.

The utility model provides a kind of oil consumption production device, production device is an oil consumption cooking pot, and the oil consumption cooking pot is equipped with starch paste feeding dispersion mechanism;Starch paste feeding dispersion mechanism disperses starch paste into oyster sauce premix liquid quickly, which can avoid the unevenness of oyster sauce products, and also reduces the mixing time when fully gelatinized starch paste is put into oyster sauce premix liquid, causing starch particles to further absorb water and swell, increasing the probability of starch particle breakage, and further affecting the shelf life stability.

The invention relates to the field of new food packaging materials, and discloses viscous-dominated thermoplastic starch as well as a preparation method and application thereof.The viscous-dominated thermoplastic starch is prepared by preparing hydrated starch particles in advance, preliminarily destroying a starch crystal region structure, promoting disordering of a starch chain, providing more active sites for subsequent acidolysis and introducing a structure regulator in a secondary extrusion process, so that the viscous-dominated thermoplastic starch is prepared. And cooperative regulation and control on the molecular structure and rheological behavior of the starch are realized. The resulting viscosity-dominant thermoplastic starch exhibits viscosity-dominant rheological properties in the molten state, the loss modulus (G '') of which is entirely higher than the storage modulus (G ') in the test frequency range. Based on the characteristics, when the viscous dominant type thermoplastic starch and the biodegradable polyester are blended, excellent processing matching performance and interface compatibility are shown, phase separation can be inhibited, the film forming stability can be improved, and therefore the mechanical property of the composite film is improved. The method is simple in process and low in cost, and has a good industrial application prospect.

This invention discloses a microbial detection device for deep-processed chestnut products, belonging to the technical field of microbial detection devices for deep-processed products. It includes a frame, a crushing mechanism at the top of the frame, a mixing mechanism below the crushing mechanism, a three-way valve below the mixing mechanism, an overflow pipe and a clamp valve at the other two ports of the three-way valve, a sampling needle below the clamp valve, and a double-layer rotating sampling mechanism below the sampling needle, with a sample tube mounted on the double-layer rotating sampling mechanism. This invention utilizes tangential jetting at the throat of the Venturi tube to create a high-speed vortex, ensuring that starch particles remain suspended and guaranteeing sample representativeness. The integrated crushing and filtration, continuous homogenization, and the three-way overflow clamp valve work together to achieve precise matching of continuous flow and intermittent sampling for dispensing. The inner rotating drum is self-cleaning, the Venturi tube has no moving parts, and the clamp valve has a flexible hose contact design, combined with circulating cleaning, reducing cleaning difficulty and preventing cross-contamination.

The invention relates to the field of food processing, and particularly discloses a method for improving the quality of frozen flour products by using modified rice starch. The improved frozen dough is prepared from, by weight, 100 parts of flour mixture, 0.8-1 part of salt, 1.5-2 parts of yeast, 9-10 parts of sugar, 4-6 parts of butter and 50-55 parts of water, and the flour mixture is prepared from rice starch and wheat flour which are subjected to starch particle surface protein removal and multi-stage power ultrasonic synergistic modification according to the mass ratio of 0.2: 9.8. The rice starch which is used for removing protein on the surfaces of starch particles and is subjected to multi-stage power ultrasonic synergistic modification is added, so that the nutritional value of the frozen dough is effectively improved, the specific volume and the tissue structure of flour products are improved, and meanwhile, the taste can be enhanced.

The invention discloses modified kudzuvine root starch and a preparation method and application thereof, and relates to the technical field of starch modification, the preparation method of the modified kudzuvine root starch comprises the following steps: mixing kudzuvine root starch with a solvent, and carrying out heat treatment in a reflux state; the solvent comprises an alcohol reagent. A solvent containing an alcohol reagent is used for performing reflux heat treatment on the modified kudzuvine root starch, so that expansion and disintegration of starch particles are inhibited, the original form and crystal form of the starch particles are kept, and the viscosity and retrogradation value of the kudzuvine root starch are improved; compared with solvent extraction treatment containing an alcohol reagent, the cold water solubility, the expansibility and the water-holding capacity of the pueraria starch are improved, and the endothermic enthalpy H and the relative crystallinity of the pueraria starch are reduced. Therefore, the solvent containing the alcohol reagent effectively improves the hydration characteristic and the gelatinization characteristic of the kudzuvine root starch, and the application range of the kudzuvine root starch is expanded. High hydrostatic pressure treatment can be carried out on the radix puerariae starch after heat treatment, the performance change of the radix puerariae starch is promoted synergistically, and the application range is expanded.

The utility model provides an efficient separation device for organic potato starch particles. The efficient separation device for the organic potato starch particles comprises a supporting table, a supporting frame is fixedly connected to the top of the supporting table, and a separation box is fixedly connected to the interior of the supporting frame in a sleeved mode. According to the efficient separating device for the organic potato starch particles, the stretching rod is arranged, when potato starch needs to be separated, starch is put into the feeding hopper, the feeding hopper can guide and convey the starch into the separating screen, at the moment, the first motor is started, and the separating screen is started; a first motor drives a stretching rod to continuously stretch through a rotating disc, namely, a separating screen is driven to continuously reciprocate in a limiting sleeve, so that starch particles in the separating screen are discharged to the outside of the separating box through the limiting sleeve, and the effect of separating the starch particles when the separating box is static is achieved; the problem of difficult starch feeding caused by shaking of the separation box is avoided, so that the use convenience of the starch particle separation device is improved.

The present invention relates to improving the flowability and compressibility (tensile strength) of starch by using an enzyme, enhancing the porosity of starch particles, and using porous starch particles for direct compression of tablets.

This utility model relates to the technical field of starch processing equipment, specifically a starch washing device for starch production. It includes a fixed support first and a fixed support second, both fixedly mounted on the ground. The fixed support first and fixed support second are equipped with sand removal mechanisms for separating sand from starch slurry. One end of the sand removal mechanism is equipped with a conveying pipe for transporting the starch slurry, and the other end is equipped with a filtering mechanism for filtering sand from the starch slurry. In this utility model, through the sand washing mechanism, when the starch slurry is in the water guide tank, the difference in specific gravity between sand and starch particles causes the sand to automatically accumulate in the strip-shaped through-holes, while the starch particles continue to flow with the starch slurry, thereby removing most of the sand from the starch slurry. The filtering mechanism further filters the starch slurry after most of the sand has been removed, thus maximizing the removal of sand from the starch slurry.