27 results about "Starch grain" patented technology

The invention discloses a method for preparing prefabricated powder with a low grain breakage rate based on rice. The invention provides a production process flow system for crushing rice starch grains into powder through a soaking and rubbing method and a method for preparing prefabricated powder by using the production process flow system. The production process flow is systematically integrated and fully combined with the quality standard and related attributes of the rice products, meets the characteristics of raw material properties, molecular structures and the like, determines the technical index requirements of the product industrial production process flow and the crushing and milling production related equipment, productivity and the like, and can solve the problem of quality stability of fine crushing and milling of the rice products. The grain size of the grains is 100 meshes, the sieving rate is more than 99.8%, meanwhile, the breakage rate of the granular starch is stabilized to be less than 5%, and the productivity is 30-8000kg per hour. And a process quality stable foundation is laid for producing industrial products by finely grinding raw material grains in industries such as rice products and the like.

The invention discloses a method for preparing sweet soup balls based on glutinous rice flour with low grain breakage rate. Glutinous rice starch grains are operated through a production process flow of crushing and powdering by a soaking and rubbing method. The 100-mesh sieving rate of the prepared glutinous rice flour grains reaches 99.8% or above, the glutinous rice flour is finer and smoother, meanwhile, the granular starch breakage rate is stabilized to be smaller than 5%, the texture is improved, and the product quality is stable. The soup transmittance of the prepared glutinous rice dumplings is remarkably improved, the cooking loss rate, the floating time and the freezing cracking rate are remarkably reduced, the glutinous rice dumplings are easier to cook, and the cooked glutinous rice dumplings have better quality.

The invention relates to a CRISPR / Cas9 gene editing vector for preparing waxy barley as well as a construction method and application of the CRISPR / Cas9 gene editing vector. Through a CRISPR / Cas9 system constructed by a specific sgRNA, the waxy gene of barley is subjected to biallelic mutation, GBSSI protein is not expressed, A-type starch grains in barley endosperm are relatively not full, the periphery of the A-type starch grains is mainly wrapped by protein, B-type starch grains are extremely few, amylose in barley grains is zero, and the content of soluble sugar is remarkably increased; the obtained new glutinous barley strain provides a new germplasm resource for improving the quality of barley seeds and barley processed food, and has practical popularization and application values.

The invention discloses a method for preparing seasoning by using rice flour with low grain breakage rate. The rice starch grains are crushed into powder through a soaking and rubbing method, and the prepared rice flour is further used for preparing seasonings. The 100-mesh sieving rate of the rice starch grains prepared by the method disclosed by the invention reaches 99.8% or above, and meanwhile, the breakage rate of the starch grains is stabilized to be less than 5% or below. When the starch is used for seasoning production, due to complete starch molecular structure and low breakage rate, gelatinization and caking caused by high breakage rate in the traditional process are avoided, the dissolution uniformity is improved by 40%, the thickening stability is improved by 25%, and the dependency degree of food additives is reduced. And the method can more completely reserve the original flavor of the rice, promotes the seasoning to form a multi-layer composite flavor, and reduces 15% of nutrition loss compared with the traditional process. The rice flour prepared by the method disclosed by the invention has an ultrafine particle size, the dissolving speed is increased by 30%, and liquid / powder seasoning can be quickly and uniformly dissolved.

To provide new means for providing a plastic molding containing starch grains having small particle diameters.SOLUTION: A resin composition contains a plasticized starch material and a thermoplastic resin, in which the plasticized starch material contains starch, a polar organic compound that allows the starch to be gelatinizable or plasticizable at a temperature higher than an ordinary temperature, and water, in which particle diameters of starch grains contained in the resin composition are 2 μm or smaller. Plasticized starch has a plasticized starch material containing starch, a polar organic compound that allows the starch to be gelatinizable or plasticizable at a temperature higher than an ordinary temperature, and water. A method for producing a resin composition includes: a first mixing step of mixing starch with a polar organic compound that allows the starch to be gelatinizable or plasticizable at a temperature higher than an ordinary temperature, and water; a plasticized starch preparation step of plasticizing the starch by heating the mixture obtained in the first mixing step, and preparing plasticized starch; and a second mixing step of mixing the plasticized starch and a thermoplastic resin, and obtaining a resin composition containing starch grains having particle diameter of 2 μm or smaller.SELECTED DRAWING: None

The invention discloses infant rice flour with good digestive performance and a preparation method thereof. The invention provides a production process flow system for crushing rice starch grains into powder through a soaking and rubbing method and a method for preparing prefabricated powder by using the production process flow system. The production process flow is systematically integrated and fully combined with the quality standard and related attributes of the rice products, meets the characteristics of raw material properties, molecular structures and the like, determines the technical index requirements of the product industrial production process flow and the crushing and milling production related equipment, productivity and the like, and can solve the problem of quality stability of fine crushing and milling of the rice products. The grain size of the grains can reach 99.8% or above through a 100-mesh sieve, and meanwhile, the breakage rate of the granular starch is stabilized to be less than 5% or below. Compared with common infant rice flour, the infant rice flour further prepared from the rice flour prepared through the method is better in hydrolysis performance, easier to digest and absorb, less in amino acid loss and higher in nutritional value compared with common rice flour sold in the market.

The utility model discloses a starch granule wobble plate machine, which relates to the technical field of wobble plate machines and comprises an equipment cabinet, a first driving device and a second driving device are mounted on the upper portion of the equipment cabinet, and a lower-layer tray and an upper-layer tray are correspondingly mounted at driving ends of the first driving device and the second driving device. A lifting driving device is installed on the lower portion of the first driving device, a lifting plate is installed at the telescopic end of the lifting driving device, and the lower-layer tray is installed on the upper portion of the lifting plate. According to the starch granule tray placing machine, through the optimally designed upper and lower layer tray switching mechanism, rapid, stable and accurate automatic switching of the upper and lower layer trays in the tray placing process is achieved, tray placing operation is continuously completed under the condition that shutdown is not needed or shutdown intervention is greatly reduced, the automatic tray placing efficiency of materials such as starch granules is remarkably improved, and the labor intensity of workers is reduced. And meanwhile, the manual operation cost and the equipment shutdown loss are reduced, and the production efficiency is greatly optimized.

The invention relates to the technical field of electrical equipment, and discloses a low-sugar rice making method and device, computer equipment and cooking equipment.The low-sugar rice making method comprises the steps that after a rice-water mixture in an inner container is gelatinized, the rice-water mixture is cooled to a preset first temperature, and amylase is added into the inner container; controlling the heating device to heat the inner container, so that the first actual temperature in the inner container is maintained in the enzyme activity temperature interval; and when the first actual time length for heating the inner container reaches a preset first time length threshold value, the inner container is cooled. According to the method, the low-sugar rice is prepared by amylase enzymolysis, and the enzymolysis reaction can penetrate into rice grains to act on starch grains, so that compared with an elution method of only removing surface starch, the method is more thorough in sugar reduction and lower in glycemic index.

The invention discloses a semantic segmentation-based high-throughput analysis method for starch grains in wheat grains, which comprises the following steps of: S1, outlining a contour to obtain an annotation data set; s2, constructing an SGnet model for training, and selecting a final model; s3, any original microscopic image is selected and input into the final model, the equivalent diameter of each starch particle is obtained, different particles are automatically divided according to the size of the equivalent diameter, an endosperm layering area is divided into different layers based on a mass center radial layering algorithm, and the quantitative proportion, the average diameter and the area distribution of different types of particles in each layer are counted. According to the method, the SGnet model is constructed, and the final model capable of automatically running is obtained through operations such as cavity convolution and ASPP module fusion of multi-scale features, so that manual operation is reduced, irregular particles and dense overlapping scenes can be processed, analysis of mature grains or young caryopses is supported, a high-cost particle size analyzer does not need to be used, and the method has both accuracy and calculation efficiency.

This invention relates to the field of wood processing technology, specifically a method for processing and preparing wood materials. The invention first involves eliminating permeability barriers in the wood material by removing starch granules from the cell cavities to form continuous permeation channels, followed by drying to a moisture content of 6%–12%. A eutectic solvent is prepared by mixing choline chloride with an organic acid hydrogen bond donor at a molar ratio of 1:2. The eutectic solvent is then impregnated into the wood material using a vacuum negative pressure impregnation process, and held at 65–75°C for 2–4 hours to increase the content of active hydroxyl groups in lignin while ensuring the loss rate does not exceed 8%. A bio-based crosslinking agent is directly added during the impregnation process, resulting in the in-situ formation of a crosslinked network within the cell wall through esterification. After hot-press curing and gradient drying, the eutectic solvent is recovered and recycled. This invention achieves a synergistic improvement in the mechanical properties, dimensional stability, and durability of the wood material, with formaldehyde emissions meeting the requirements of GB18580 standard, and a eutectic solvent recovery rate of not less than 85%.

The invention relates to the technical field of flour processing, in particular to starch grain centrifugal separation equipment for flour finish machining, the equipment comprises an equipment shell, a centrifugal separation mechanism and a flour ball scattering mechanism, the centrifugal separation mechanism comprises a centrifugal cylinder, a first guide rail, a T-shaped disc and a separation screen drum, and the first guide rail is fixedly arranged on the inner wall of the equipment shell; a through hole is formed in the side, close to the centrifugal cylinder, of the first guide rail, one end of the T-shaped disc is slidably arranged in the first guide rail, the other end of the T-shaped disc penetrates through the through hole in the first guide rail and then is fixedly connected with the centrifugal cylinder, a movable gap is reserved between the centrifugal cylinder and the first guide rail, and screening holes are formed in the separating screen cylinder. According to the starch grain centrifugal separation equipment for flour finish machining disclosed by the invention, the centrifugal separation mechanism is improved, so that the centrifugal barrel horizontally swings during rotation, the separation screen barrel and the scattering barrel are driven to cooperatively move, and under the combined action of centrifugal force and horizontal swinging, flour dough is easily scattered; meanwhile, the starch grain screening efficiency and the separation effect are improved.

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.

The present application relates to the technical field of drying equipment, and particularly relates to a corn starch grain cyclone dryer, which comprises a horizontally arranged spiral channel, one end of the spiral channel is provided with an air inlet pipe for supplying high-temperature airflow into the spiral channel and a feeding pipe for supplying starch grain material into the spiral channel; the high-temperature airflow and the material are made to enter from one end of the spiral channel and to be discharged from the other end of the spiral channel by taking the horizontally arranged spiral channel as a drying main body, so that continuous drying processing of the material can be realized, the material is spirally and unidirectionally moved under the driving of the high-temperature airflow, and drying is completed in the moving process; meanwhile, based on the horizontal arrangement of the spiral channel, the airflow flow direction and the gravity direction have the same or opposite relationship in different areas, the motion track of the material particles is differentiated, the material is reciprocally moved in the radial direction of the spiral channel, and the material is prevented from being concentrated in a single area for a long time.

The application discloses application of a potato StSS5 gene in regulating tuber size and starch granule size, and belongs to the technical field of genetic engineering.The StSS5 gene editing strain is obtained through CRISPR / Cas9 gene editing technology, the tuber size, starch granule size and the number of starch granules in the amyloplast of the StSS5 gene editing strain are analyzed, the functional mechanism of the StSS5 gene in regulating tuber size and starch granule size is revealed, new gene resources are provided for improvement of potato starch characteristics, and a new train of thought is provided for functional research on starch granule initiation related genes.

The invention is suitable for the technical field of rice processing, and provides a semi-dry method rice noodle special-purpose flour pretreatment method for improving hydration effect and application, the method comprises the following steps: raw material hot air pretreatment, soaking, grinding and drying, and preparation of rice noodle special-purpose flour dry powder, the dry powder is applied in fresh wet rice noodle production; according to hot air drying, rapid drying of a sample is achieved through circulation of hot air, so that cracks are generated on the surfaces of rice grains, the cracks naturally formed by outward migration of water do not damage the integrity of starch grains, the water absorption of rice is improved in the semi-dry method milling process, meanwhile, the milling efficiency is improved, and the quality of the rice is improved. And the content of damaged starch is also reduced.

The invention discloses application of arachidonic acid in induction improvement of corn leukoderma resistance, the arachidonic acid is applied to prevention and treatment of corn leukoderma for the first time, and experiments show that the arachidonic acid can improve the photosynthetic effective leaf area, Fm content, Fv / Fm content, NPQ content, soluble sugar content and soluble protein content of plants; and / or increasing the activity of disease-resistant-related defensive substances; and / or catalyzing synthesis of lignin and phenolic substances; and / or the content of Rfd, MDA and reducing sugar of the plant is reduced to induce and improve the corn leukoderma resistance, so that a new direction and basis can be provided for preventing and treating the corn leukoderma by adopting natural compounds. It is found that the arachidonic acid does not strictly depend on the total spraying amount for inducing and improving the leukoderma resistance, but when the spraying amount is the same and the concentration of the arachidonic acid in the spraying liquid is 15 [mu] M, the arachidonic acid is optimal for inducing and improving the leukoderma resistance. And the application of arachidonic acid is beneficial to reducing the particle size of starch particles in corn kernels under the pressure of leukoderma.

The invention provides a method for shortening the growth period of tobacco. The invention finds the specific new application of the bacillus altitudinis NM17 (collection number is CGMCC NO.31273): (1) the harvesting period of tobacco is shortened, and the tobacco is harvested in advance; (2) tobacco leaf maturity and uniformity are improved, and tobacco leaf layering yellowing is promoted; (3) the decomposition of starch granules is promoted, and the quality of tobacco leaves is improved. The method has a great application prospect in improving the maturity of the tobacco leaves and promoting the early harvesting of the tobacco leaves.

The present invention discloses a high-throughput analysis method for starch granules in wheat grains based on semantic segmentation, including the steps of: S1, performing contour delineation to obtain an annotated data set; S2, constructing and training an SGnet model and selecting a final model; S3, inputting any original microscopic image into the final model to obtain the equivalent diameter of each starch granule and automatically dividing different granules according to the equivalent diameter size, dividing the endosperm stratification region into different layers based on the centroid-based radial stratification algorithm, and statistically analyzing the number ratio, average diameter, and area distribution of different types of granules in each layer. The present invention constructs an SGnet model. Through operations such as fusing multi-scale features by dilated convolution and the ASPP module, a final model that can operate automatically is obtained, reducing manual operations, capable of processing irregular granules and dense overlapping scenarios, supporting the analysis of mature grains or young caryopses, without the need to use a high-cost particle size analyzer, and also having both accuracy and computational efficiency.

The present invention relates to a coated particle, wherein a vegetable wax is provided on the surface of a starch particle. The average particle size d1 of the coated particle is 0.5 μm - 20 μm, the maximum particle size d2 is less than 30 μm and is 4.0 times or less of the average particle size d1. The coated particle contains 0.5% by weight - 10.0% by weight of the vegetable wax. Thus, particles having excellent touch characteristics and waterproof properties can be realized with a natural material having excellent biodegradability. In addition, the manufacturing method of the coated particle includes: a step of preparing a dispersion liquid containing 1% by weight - 20% by weight of starch particles; a step of adding the vegetable wax to the dispersion liquid and precipitating the vegetable wax on the surface of the starch particle by heating and cooling; and a step of subjecting the dispersion liquid to solid-liquid separation to obtain the coated particle as a solid matter.

The invention relates to the technical field of agricultural detection, in particular to a method for judging the optimal harvest time of Chinese herbaceous peony based on a soft X-ray imaging technology, which comprises the following steps: S1, collecting Chinese herbaceous peony samples according to a time gradient; s2, performing embedding and slicing treatment on the root of the peony sample; s3, scanning at double energy points of 530 eV and 545 eV by adopting a soft X-ray imaging system, and acquiring an oxygen element distribution image of the starch granules on the basis of oxygen element absorption edge characteristics; s4, processing the starch grain distribution image to obtain an oxygen element specificity distribution diagram; and S5, quantitatively detecting the average gray value of the starch granules through image analysis software, and judging the optimal harvesting time. According to the method, high-resolution imaging and quantitative analysis of the Chinese herbaceous peony root starch granules are realized and the optimal harvesting time of Chinese herbaceous peony is determined by utilizing the high sensitivity of soft X-rays to oxygen element absorption edge characteristics at a specific energy point.

The invention discloses a preparation method and application of a waterproof and oilproof auxiliary agent. Belongs to the field of waterproof and oil-proof paper, and overcomes the defects that paper coated with a bio-based waterproof and oil-proof agent is poor in hydrophobicity and difficult to stably use for a long time due to the fact that most bio-based waterproof and oil-proof agent has a large number of strong hydrophilic hydroxyl groups in the chemical structure of the bio-based waterproof and oil-proof agent. The preparation of the acrylate copolymer is realized through a bio-based starch particle stable Pickering emulsion polymerization method, and finally the starch-based Pickering particle stable waterproof and oil-proof functional emulsion is obtained. According to the auxiliary agent disclosed by the invention, the use of toxic and harmful small-molecular surfactants is avoided, and higher stability can be provided. The auxiliary agent is used as a film-forming auxiliary agent to assist the acrylate copolymer in forming a more compact polymer film, so that the paper is endowed with more excellent waterproof and oil-proof performance.

The invention belongs to the technical field of plant molecular biology and crop genetic breeding, and discloses DNA (deoxyribonucleic acid) methylated transferase ItCMT2 related to sweet potato tuberous root development as well as an encoding gene and application of the DNA methylated transferase ItCMT2. According to the invention, the ItCMT2 gene is cloned and identified from a sweet potato diploid related species Ipomoeatrifidavar.Y22, and the ItCMT2 gene is used for encoding a protein containing BAH and C5MTase structural domains. By constructing an ItCMT2 gene knock-down (KD) transgenic sweet potato model and combining agronomic character identification, methylation analysis, hormone quantification and omics conjoint analysis, it is proved that ItCMT2 can maintain sweet potato genome methylation, the root weight of a single sweet potato plant can be reduced by 51.3%-75.7% when expression of ItCMT2 is reduced, and a unique hormone spectrum of zeatin, auxin and jasmonic acid is presented; meanwhile, the starch is reduced and the starch grain shape is abnormal along with the increase of root tuber lignin.

The invention relates to the technical field of starch, in particular to chitosan composite Lipu taro starch nanoparticles as well as a preparation method and application thereof. The Lipu taro nano-starch composite chitosan particles (CH / LSNPs) with smaller particle size and stronger hydrophobicity are prepared through a composite method of an anti-solvent precipitation method and an electrostatic composite chitosan method, so that the Lipu taro nano-starch composite chitosan particles have good emulsifying activity and emulsifying stability. The method is a green composite modification method, the hydrophobicity of the Lipu taro starch is enhanced while the particle size of the Lipu taro starch is reduced, and the hydrophobic chitosan composite Lipu taro starch nanoparticles are prepared. The colocasia esculenta nanometer starch composite chitosan particles can be used for preparing Pickering emulsion, and the prepared emulsion has higher emulsion stability compared with the Lipu colocasia esculenta nanometer starch Pickering emulsion and the Lipu colocasia esculenta nanometer starch Pickering emulsion.

The application discloses a method for preparing medium glycemic index wheat flour by regulating the roller spacing of skin mill and heart mill, and belongs to the technical field of food processing. The wheat variety with a hardness index of 65-70 is selected, and after cleaning, stone removal and impurity removal, the wheat is moisturized to a moisture content of 14.5-15.5%; the roller spacing of the skin mill is set to 0.1-0.3 mm, and the roller spacing of the heart mill is set to 0.01-0.03 mm; the roller spacing of the skin mill and the heart mill is synergistically regulated, and the in-vitro glycemic index EGI of the wheat flour is controlled to be less than or equal to 70. The application establishes a synergistic regulation method for the roller spacing of the skin mill and the heart mill, and discloses the mechanism that the skin mill spacing dominates the processing precision and the heart mill spacing dominates the starch digestion characteristics; by reasonably widening the roller spacing, the starch grain integrity can be maintained while the flour yield is ensured, the starch digestion is significantly delayed, the EGI is reduced, and the method is suitable for the industrialized production of medium glycemic index special-purpose wheat flour.

The application belongs to the technical field of analysis and determination, and discloses a method for effectively dispersing starch particles for accurately measuring the size of wheat starch particles by using a scanning electron microscope, which comprises the following steps: weighing the extracted wheat starch, dissolving the wheat starch in pure water to prepare a wheat starch mother liquor; dissolving the wheat starch mother liquor in a Tween solution to obtain a wheat starch suspension; sucking the wheat starch suspension and dropping it on a silicon wafer to dry in an oven; spraying gold on the surface of the silicon wafer by using an ion sputtering instrument; and observing and measuring the silicon wafer by using a scanning electron microscope after the spraying. The determination result of the method is more accurate, and the phenomenon of inaccurate measurement result caused by the aggregation or incomplete exposure of starch particles can be avoided.

The invention discloses an application of a gene OsTIC and a protein coded by the gene OsTIC in regulation and control of rice quality, and relates to the technical field of plant genetic engineering. The invention specifically discloses application of the gene OsTIC to coding of a protein with an amino acid sequence as shown in SEQ ID NO: 3. After the gene OsTIC is knocked out from a rice plant, the grain size of starch grains is not uniform, gaps of the starch grains are increased, the amylopectin content is reduced, the amylose content is reduced, the total starch content is reduced, the chalkiness is improved, and the chalkiness rate is increased; and after the gene OsTIC is overexpressed, the related change performance can be recovered. The gene OsTIC can be used as an effective target for rice genetic breeding, is beneficial to analyzing a chalkiness formation mechanism, and has important significance in researching a rice chalkiness regulation mechanism, rice breeding and improving rice quality.

This invention discloses a starch grain development-related gene, OsESG2, and its applications. The nucleotide sequence of the gene OsESG2 provided by this invention is shown in SEQ ID NO.1 or SEQ ID NO.2. Introducing the encoding gene OsESG2 into plants with abnormal starch grain development can cultivate plants with normal starch grain development. The gene and its encoded protein can be applied to crop genetic improvement.