126 results about "Amylopectin" patented technology

The invention belongs to the technical field of gene engineering, and particularly relates to application of a TaMGD3 gene in improvement of plant starch quality and cultivation of a high-starch transgenic plant, including application of the TaMGD3 gene in promotion of wheat grain starch synthesis, application of the TaMGD3 gene in cultivation of the high-starch and / or high-amylopectin transgenic plant, and application of the TaMGD3 gene in improvement of plant starch quality and cultivation of the high-starch and / or high-amylopectin transgenic plant. The invention also discloses an application of the TaMGD3 gene in improvement of plant starch characteristics. A nucleotide sequence of the TaMGD3 gene is shown as SEQ ID NO. 1. The invention also provides a cultivation method of transgenic wheat. In wheat cultivation, wheat amylopectin quality improvement is realized through overexpression of the gene shown in SEQ ID NO.1. The TaMGD3 gene can improve the starch content of wheat grains, influence the particle size distribution of the wheat grain starch, improve the amylopectin proportion, improve the peak viscosity and the relative crystallinity of the starch, and facilitate the improvement of the cooking quality related to the wheat starch.

The banana transcription factor MabZIP2 disclosed by the invention is combined with a banana fruit MaLSF1 gene promoter to regulate up-regulated expression of the banana fruit MaLSF1 gene. The MabZIP2 expression is instantly silenced, the expression quantity of the MaLSF1 is reduced, the degradation of banana pulp starch is inhibited, and the content of total starch, amylose and amylopectin is increased, so that the sweet taste of banana fruits is favorably improved, and the quality of bananas is improved; the hardness of the banana pulp is improved, the softening of the banana after picking can be delayed, the ripening of the banana fruit after picking is delayed, and the storage period of the banana fruit is prolonged. The banana transcription factor MabZIP2 provides an important gene resource for improvement of banana fruit quality, provides a theoretical basis for research and development of a banana fresh-keeping technology and cultivation of new storage-resistant varieties, and also provides a new way for research and development of a fresh-keeping technology of starch storage type fruits such as bananas, molecular design breeding and cultivation of new storage-resistant banana varieties.

The invention discloses a composite sewage treatment agent and a preparation method thereof, and belongs to the technical field of sewage treatment. The composite sewage treatment agent disclosed by the invention is prepared from the following raw material components in parts by mass: 10 to 12 parts of starch-based flocculating agent, 0.8 to 1.2 parts of modified bimetallic biochar and 0.7 to 0.8 part of 2, 4, 6-tri (4-ethynyl phenyl)-1, 3, 5-triazine, wherein the starch flocculant is obtained by carrying out graft copolymerization on an active monomer and amylopectin and then introducing carbazole through Ullmann reaction, and the active monomer at least comprises acrylamide, methacryloyloxyethyl trimethyl ammonium chloride, acryloyloxyethyl trimethyl ammonium chloride and N, N-diallylaniline; the modified bimetal biochar is prepared from bimetal biochar modified by 3-bromopropyl trimethoxy silane, and the modified bimetal biochar is prepared from the modified bimetal biochar modified by the 3-bromopropyl trimethoxy silane modified bimetal biochar. The bimetallic biochar is obtained by loading nano-iron and molybdenum disulfide in two steps through a calcination method and a hydrothermal method by taking straw biomass as a raw material.

The invention discloses a photo-thermal catalyst for converting waste starch plastic into amylose as well as a preparation method and application of the photo-thermal catalyst. The photo-thermal catalyst mainly comprises a halogen-containing thermal catalyst capable of playing a role at a certain temperature and a photo-thermal conversion agent capable of playing a photo-thermal conversion role under illumination; the invention mainly relates to a confined halogen-containing thermal catalyst, a halogen-modified thermal catalyst, a non-confined halogen-containing thermal catalyst, a modified halogen-containing thermal catalyst and a photo-thermal conversion agent with a photo-thermal effect. The photo-thermal catalyst provided by the invention can convert more than 70% of amylopectin in starch into amylose, so that high-value amylose is recovered from waste starch plastic. The technology provided by the invention does not involve an organic solvent, a high temperature and an inert gas atmosphere, and the reaction product is simple and convenient to separate. The technology is suitable for recycling various waste starch plastics and mixed plastics of starch plastics and other plastics.

The invention discloses a modified glutinous rice flour auxiliary material for controllable release medicine tablets and a preparation process of the modified glutinous rice flour auxiliary material, and relates to the technical field of biological medicines.The multifunctional auxiliary material with a specific microstructure and corrosion dynamic characteristics is obtained by taking glutinous rice flour with the amylopectin content larger than or equal to 80% as a raw material and conducting a three-stage process of pretreatment, directional modification and aftertreatment; the tablet has the functions of filling, bonding, disintegrating or skeleton controlled release, and can accurately regulate and control the drug release according to the dosage form demand. The invention aims to solve the problems that the traditional auxiliary material has a single function and is difficult to adapt to the release requirements of multiple types of drugs, realizes the multifunctional integration of the natural auxiliary material and the controllability of the release behavior, and remarkably improves the suitability of the preparation and the process stability.

The invention relates to the field of bioengineering, in particular to a construction method and application of an amylopectin ternary nano assembly with a high assembly index. The invention provides a construction method of a ternary nano assembly. The construction method comprises the following steps: S1, extracting amylopectin of bulk crops by adopting an ethanol sedimentation method; s2, extracting endogenous lipids of fruits of completely mature bulk crops by adopting a supercritical carbon dioxide extraction method; s3, extracting endogenous proteins of fruits of immature bulk crops by adopting an isoelectric precipitation method; s4, the amylopectin, the endogenous lipid and the endogenous protein are subjected to a self-assembly reaction, and the ternary nano assembly is obtained. The particle size of the ternary complex can reach nanometer, and the ternary complex is high in CI, high in SDS content, low in multi-stage digestion rate, stable in blood sugar release process and good in chewiness.

The invention discloses a black fungus AMY protein and a coding gene and application thereof, and belongs to the technical field of protein engineering. The invention provides a black fungus AMY protein as well as an encoding gene and application thereof in order to excavate a key enzyme gene of a starch sucrose metabolic pathway in black fungus, and discovers and verifies that the black fungus AMY protein and the encoding gene thereof play a key regulation and control role in inducing synthesis of black fungus alpha-amylase through transcriptome sequencing. A solid foundation is laid for deeply exploring the function of a key gene of a starch sucrose metabolic pathway.

The invention discloses an oilseed rape-sorghum-autumn cucumber planting method based on cooperation of oilseed rape and vegetables, and the method comprises the following steps: sowing oilseed rape in late September; in late October, when the oilseed rape grows to 3-5 leaves, transplanting the oilseed rape to a field; sowing sorghum in the middle ten days of March of the next year; in early April of the next year, when sorghum grows to a three-leaf stage, transplanting; in the middle ten days of April of the next year, harvesting oilseed rape, and then threshing; in late July of the next year, harvesting sorghum, and then threshing; sowing autumn cucumbers in early August of the next year; and harvesting autumn cucumbers from late September to mid-October. Compared with a conventional planting mode, the rape yield can be increased by 4.7%, the sorghum yield can be increased by 6.8%, the total starch content and the amylopectin content of sorghum grains can be increased by 1% and 0.7% compared with rape and sorghum crop rotation, and the income per mu can be increased by 3519 yuan, 1743 yuan and 1132 yuan compared with oil field crop rotation, sorghum single cropping and rape-sorghum relay cropping. According to the planting method, variety selection is accurate, crop rotation connection is seamless, high economic benefits are achieved, and the planting enthusiasm of farmers can be promoted.

The present disclosure relates generally to a dough composition including one or more legume flours present in a total amount in the range of 40-70 wt%, based on the weight of the dough composition; a film-forming starch present in an amount in the range of 5-20 wt%, based on the weight of the dough composition, the film-forming starch having an amylopectin content of at least 80 wt%, an RVA final viscosity after 1 hour at 25°C of no more than 900 centipoise, and an RVA peak-and-breakdown time of no more than 500 s at 25°C; one or more oils or fats present in a total amount in the range of 5-30 wt%, based on the weight of the dough composition; and water present in an amount in the range of 10-40 wt%, based on the weight of the dough composition.

Provided herein are compounds comprising derivatives of dual GLP-1 / amylin receptor agonists and methods of use thereof.

The present invention relates to a method of reducing the body weight of a subject, the method comprising administering to the subject about 1 mg to about 15 mg of an amylin receptor (AMYR) agonist. Also provided are corresponding compositions and kits.

The invention relates to the technical field of kitchen utensil equipment, in particular to a rice steaming system with water circulation sugar reducing and circulation steam uniform heating functions, which comprises a box body, moving wheels are mounted at the bottom of the box body, a sealing door is rotatably connected to the front surface of the box body, and a control console is mounted at the top of the box body. A shelf board is fixedly installed on the inner wall of the box body, a driving box is fixedly installed on the back face of the box body, and a driving assembly is installed on the inner wall of the driving box. Water in the water storage barrel flows into the rice steaming bin through the water inlet pipe by adopting the water pump and then flows out through the return pipe to repeatedly wash rice which is being steamed in the rice steaming bin, so that part of amylopectin of the rice is lost, the amylopectin structure is relatively loose, and the amylopectin is more easily decomposed into glucose in the digestion process, so that the blood sugar is increased; the purpose of reducing blood sugar is achieved by repeatedly washing away amylopectin, the taste is further improved, after washing is completed, the water storage barrel is heated, steam flows into all the dishes through the steam pipe, and rice in each dish is evenly cooked.

The invention discloses a traditional modern fusion type intelligent brewing process and system for Moungu Qinglian wine, and belongs to the technical field of white spirit brewing. According to the process, the accurate proportioning (25: 10: 35: 20: 10) of glutinous rice (amylopectin is greater than or equal to 80%), lotus seeds (starch is greater than or equal to 60%) and other raw materials is realized through an Internet of Things weighing system; the temperature and humidity (25 + / -2 DEG C / 75 + / -5%) of the cellar are dynamically regulated and controlled by adopting an LSTM model, and the rancidity rate is smaller than or equal to 1% by combining with caproic acid bacteria (larger than or equal to 106 CFU / g) enriched in the yellow water extract; quality-based liquor picking is realized based on near infrared spectrum and machine vision (the premium grade rate of middle-stage liquor is 92%); 12 flavor substances serve as input through a BP neural network, and a blending ratio (flavor similarity is larger than or equal to 98%) is output; and full-process tracing is realized by adopting a block chain technology. The wine yield is greater than or equal to 37.8% and is improved by 15.2% compared with that of a traditional process, the stability of ethyl hexanoate is improved by 68%, and the technical problems of inaccurate raw material ratio, uncontrollable fermentation, poor flavor stability and the like in the traditional process are solved.

This invention belongs to the field of molecular biology technology, specifically relating to a... ZmTHX12 The application of biological products in improving corn kernel quality and yield, the aforementioned ZmTHX12 The nucleotide sequence of the gene is shown in SEQ ID NO.1, and the amino acid sequence is shown in SEQ ID NO.2. This invention discovers... ZmTHX12 It can regulate the quality and yield traits of corn kernels, and in corn... ZmTHX12 Gene mutations can increase the protein and soluble sugar content in kernels, and can be used to improve the quality traits of corn; while ZmTHX12 ZmTHX12 Gene overexpression leads to increased oil and amylopectin content in kernels, resulting in larger kernels and increased 100-kernel weight, which can be used to improve maize yield and quality traits. This discovery not only provides a scientific basis for understanding the development mechanism of kernels but also offers theoretical guidance for the genetic improvement of maize.

The invention discloses a humidity-driven soft actuator and a preparation method thereof, the actuator takes a patterned black polyimide (PI) film as a substrate, and the substrate is compounded with two-dimensional transition metal carbide Ti3C2Tx (MXene) / amylopectin amp; a functional layer is formed by Amylose / carbon nanotubes (CNTs), when the functional layer absorbs moisture and expands, the actuator is bent towards the PI side, and when the functional layer is dehumidified and contracts, the actuator is bent reversely; the bending response direction is defined through the substrate gap direction of nanosecond laser machining, and the initial curvature and the bending degree are regulated and controlled through vacuum hot pressing treatment. The components cooperate to endow the actuator with rapid humidity response capability and excellent mechanical stability. The technical problems that an existing humidity driving actuator is poor in programmability and an interface is prone to stripping are solved, an external driving source is not needed, the technology is simple, convenient and controllable, and the potential application value in the fields of soft robots, flexible intelligent equipment and the like is shown.

The application belongs to the technical field of microorganisms, and discloses a lactic acid bacteria preparation for improving the yield and quality of waxy corn and application thereof. The active bacteria in the lactic acid bacteria preparation are Lactobacillus casei C-9 strains, and the strain preservation number of the C-9 strains is CGMCC No. 6734. The application is at least one selected from the following: A, improving the yield of waxy corn; B, improving the amylopectin content, soluble sugar content and total amino acid content in waxy corn kernels; C, improving the taste and flavor of waxy corn; and D, enhancing the stress resistance of waxy corn. The application uses Lactobacillus casei C-9 bacterial liquid for waxy corn planting, solves the problems of soil physicochemical property deterioration, soil microbial community imbalance, soil fertility decline and environmental pollution caused by chemical fertilizers through the combined mode of seed treatment, base fertilizer application, leaf surface spraying and root irrigation.

The application belongs to the technical field of molecular genetics, and particularly relates to a gene related to corn kernel quality and application, and a nucleotide sequence of the gene is shown as SEQ ID NO. 1. The gene provided in the application has the function of regulating the content of asparagine, tryptophan, phenylalanine, histidine, arginine and serine in corn kernels, and the content of amylose, amylopectin and total starch. The knockout mutant of the gene created by gene editing technology increases the content of asparagine, tryptophan, phenylalanine, histidine, arginine and serine in corn kernels, and the content of amylose, amylopectin and total starch, and unexpectedly reduces plant height and ear height, which is beneficial to simultaneously increasing corn yield and quality, and improving variety density tolerance.

The present application relates to a kind of oil control acne raw material composition, preparation method and its application, composition includes the following components according to concentration percentage: 70%-80% hydroxyapatite, 5%-15% salicylic acid, 6%-6.5% amylopectin, 3%-7% dextrin and 2.75%-4.75% xanthan gum.The preparation method of composition includes the following steps: step 1, preparation SA-200, salicylic acid solution is mixed with dextrin aqueous solution, and linear amylopectin and xanthan gum are added to the mixed solution, ultrasonic treatment 10min, after 120min stationary SA-200 solution is obtained;Step 2, preparation hydroxyapatite aqueous solution;Step 3, using hydroxyapatite embedding SA-200, SA-200 solution is mixed with hydroxyapatite aqueous solution, ultrasonic treatment 10min, after 120min stationary oil control acne raw material composition is obtained.It is by using hydroxyapatite as carrier, carries out secondary embedding treatment, aims at improving the light stability of salicylic acid, the stability in cosmetics, improves skin feeling and enhances the oil control performance to skin.

The invention relates to aqueous adhesive compositions which contain at least the following components: (a) 1 to 95 wt. %, calculated as the solids content of a base component, containing: (a1) at least one polymeric organic binder, selected from acrylate, styrene, vinyl acetate, vinyl propionate and / or urethane homopolymers or copolymers, or any mixture thereof, and / or (a2) at least one polysaccharide thickener, selected from the group consisting of cellulose ethers, such as methyl cellulose, carboxyalkyl cellulose, in particular carboxymethyl cellulose, hydroxyalkyl cellulose, alkyl hydroxyalkyl cellulose, starch, in particular potato starch, starch ethers, in particular modified amylose and / or amylopectin, guar ethers, dextrins and mixtures of said compounds; (b) water; and (c) 0.03 to 1.4 wt. % guanidine and / or at least one salt of guanidine, wherein the proportion by weight refers to the content of guanidine in the total aqueous adhesive composition.

The invention belongs to the field of molecular genetics, and provides a rice SS3a allele and application thereof in increasing the content of resistant starch in rice and reducing the glucose generation rate. The gene is deleted at the 2387th basic group G of the third exon of the rice SS3a gene and contains a gene sequence as shown in SEQ ID No. 1. The allele can significantly increase the amylose content in rice and change the amylopectin structure, so that the resistant starch content of rice is significantly increased, and the glucose generation rate of rice is reduced. Meanwhile, the allele can also significantly improve the gelatinization characteristic and the viscosity characteristic of the rice, and has small influence on the grain weight of the rice. The invention further relates to application of the new SS3a allele in rice breeding, the allele can be introduced through a cross breeding method, or the original SS3a gene is subjected to site-directed mutagenesis to form the allele, and the allele is used for cultivating a new high-resistance starch rice strain.

The invention relates to polyester base cloth for a waterproof roll and a preparation method of the polyester base cloth, and belongs to the technical field of non-woven materials. The polyester base fabric for the waterproof coiled material comprises the following components in percentage by mass: 80-85% of polyester filament spun-bonded needle-punched non-woven fabric and 15-20% of cassava starch glue coated on the surface of the polyester filament spun-bonded needle-punched non-woven fabric. The polyester base fabric for the waterproof coiled material is prepared by coating a polyester filament spun-bonded needle-punched non-woven fabric with cassava starch glue and drying the polyester filament spun-bonded needle-punched non-woven fabric. By utilizing the low-temperature gelatinization characteristic of cassava starch, the impregnation temperature is reduced, and the heat energy consumption is reduced; the viscosity and penetration depth of cassava starch glue are balanced by adjusting the solid content of cassava starch steeping liquor, and the stability of the preparation process of the polyester base cloth for the waterproof roll is improved; by utilizing the characteristic of high amylopectin content in cassava starch, starch glue with a loose gel network is formed on the surface of the polyester base cloth for the waterproof roll, so that the flexibility and the anti-aging characteristic of the starch glue are improved.

The application discloses natural ester insulating oil and a method and application for preparing the natural ester insulating oil by using cottonseed oil, wherein the cottonseed oil is heated to 60-70 DEG C, an adsorbent I is added, and stirring adsorption is carried out at 60-70 DEG C, and then filtration is carried out; the filtrate after filtration is heated to 90-100 DEG C, an adsorbent II is added, and secondary deep vacuum constant-temperature adsorption is carried out at 90-100 DEG C, and then filtration is carried out; the filtrate after filtration is subjected to water removal treatment, and the natural ester insulating oil is obtained. The adsorbent I is composed of kaolin, calcium oxide and magnesium carbonate, and the adsorbent II is composed of branched amylopectin, graphene oxide and porous Al2O3; by controlling the adsorbent components, adsorption temperature and adding time, the application of the cottonseed oil in the natural ester insulating oil is realized, the adsorption performance is stable, and unnecessary pollution to the oil is avoided. The natural ester insulating oil is applied to a transformer, the food safety problem caused by excessive consumption of the cottonseed oil is solved, the added value of the cottonseed oil is improved, and the development direction of green low-carbon transformation is met.

The application discloses a method for regulating starch retrogradation by using middle-high degree of polymerization linear sugar chains, and belongs to the technical field of physically modified starches. The method is characterized in that middle-high degree of polymerization linear sugar chains, such as maltotriose, maltotetraose, maltopentaose, maltohexaose and dextran with an average degree of polymerization of 9, 21 and 34, are added to starch. During the starch retrogradation process, the sugar chain molecules form hydrogen bonds with water or starch chains, or are entangled with amylopectin chains, thereby interfering with or promoting the crystallization of amylose and amylopectin, and achieving the purpose of regulating the starch retrogradation properties. Therefore, the application effectively regulates starch retrogradation by adding middle-high degree of polymerization linear sugar chains, and has important significance in the food industry.

The application discloses a kind of instant powder dry formula and its production process, belong to rice food processing technical field. Formula is made by weight parts early indica rice 75-85 parts, high branched amylopectin waxy rice with branched amylose content ≥95% 5-10 parts, edible grade ordinary corn starch 15-25 parts, water 25-35 parts, edible salt 2-4 parts, and does not add any edible glue additive;Production process includes soaking, grinding, steaming, 3-4 times gradient rolling, sizing extrusion, gradient drying and other standardization steps, the synergistic effect of high branched amylopectin waxy rice and corn starch is realized, and the instant powder dry is boiled in water for 6-8 minutes, the powder dry silk broken rate is ≤3%, the soup is clear, and the natural rice aroma is retained;Process adapts food processing conventional equipment, and can be mass-produced, the storage period of finished product is ≥6 months at room temperature, without moisture, mildew phenomenon, solve the existing instant powder dry problem of relying on edible glue, rehydration easy broken, batch quality unstable, and the application popularization value is high.

The invention relates to the technical field of food byproduct processing, in particular to a production process of a yellow wine vinasse flavor extract. The method comprises the following steps: firstly, performing soaking, fermentation, aging and solid-liquid separation on the yellow wine vinasse to obtain vinasse mud, adding grafted amylose into the vinasse mud for pre-soaking, and then adding grafted amylopectin for ultrasonic-high-pressure homogenization circulation treatment to obtain the superfine vinasse mud. Finally, propylene glycol and medium-chain triglyceride are used for constructing a temperature-resistant solvent, double grafted starch is supplemented for emulsification and homogenization, and the flavor extract is prepared. According to the method, a step-by-step synergistic extraction-double grafting embedding-oil phase heat barrier system is constructed, the problems that the utilization rate of vinasse flavor substance raw materials is insufficient and volatilization loss occurs under high-temperature processing are effectively solved, the obtained product is fine and smooth in texture, rich in flavor and excellent in heat resistance, and the application value of vinasse by-products is greatly improved.

Emulsifying salt-free processed cheese products as well as methods of preparing emulsifying salt-free processed cheese products are provided. The emulsifying salt-free processed cheese products are prepared with modified starch containing amylopectin and substantially no amylase and without emulsifying salts. The emulsifying salt-free processed cheese products are advantageously resistant to separation during heating and retain desirable organoleptic properties, such as texture and flavor, without using emulsifying salts.

The invention belongs to the technical field of sorghum identification and analysis, and relates to a method for discriminating the quality grade of sorghum for baijiu brewing. The method comprises the following steps: acquiring physicochemical indexes in a sorghum sample; inputting the physicochemical indexes into an Extra Tres discrimination model to obtain a discrimination result of the sorghum quality grade; the Extra Tres discrimination model is a corresponding relation between the physicochemical indexes and the sorghum quality grades; the physicochemical indexes comprise volume weight, thousand grain weight, starch content, protein content, fat content, tannin content and amylopectin content. The method is beneficial to the evaluation of the quality grade of the broomcorn for baijiu brewing.

The invention belongs to the field of molecular biology, and discloses application of a ZmGRF1 gene in improvement of corn kernel quality characters. The nucleotide sequence of the ZmGRF1 gene is as shown in SEQ ID NO. 1. It is found that the ZmGRF1 protein can regulate and control the corn kernel quality and yield traits, mutation of the ZmGRF1 gene in corn can improve the protein content and the soluble sugar content in the kernels and can be used for improving the quality traits of the corn, and overexpression of the ZmGRF1 gene can cause the kernels to become larger, the hundred-grain weight to be increased, the oil content and the amylopectin content to be increased, and the corn kernel quality and yield traits can be improved. The method can be used for increasing the corn yield and improving the quality character of corn. The discovery not only can provide a scientific basis for analyzing the development mechanism of grains, but also can provide theoretical guidance for genetic improvement of corn.

The invention discloses a preparation method of hydroxypropyl distarch phosphate starch, and belongs to the technical field of starch. Amylose and amylopectin are compounded and modified to prepare starch with more excellent viscosity, shear force and freeze-thaw stability, and the cross-linking uniformity and the cross-linking efficiency can be improved on the whole by combining a pulsed electric field and an ultrasonic-assisted effect and combining silicon dioxide microsphere loaded zinc oxide as a catalyst; the problem of local excessive crosslinking or non-uniform reaction possibly caused by synchronous reaction is avoided; and the whole process is simple, environmentally friendly and high in operability, the cost and the environmental burden can be effectively reduced through mild process conditions, and the method has good industrial application prospects and market competitive advantages.

The application discloses a method for promoting Jinliangnu No.1 kaffir corn to increase amylopectin content by using arbuscular mycorrhizal fungi, and the arbuscular mycorrhizal mixed fungicide is pelletized with the sterilized Jinliangnu No.1 kaffir corn seeds, and the treated kaffir corn seeds form a symbiotic body with the arbuscular mycorrhizal fungi in the growth and development process, so that the amylopectin content of the kaffir corn grains can be significantly improved. In addition, the application can improve the germination rate and the growth phenotype index of the Jinliangnu No.1 kaffir corn in the seedling stage, and solves the problem of large dosage of the arbuscular mycorrhizal fungicide in the prior art. The application is simple and convenient, has good economic benefit, social benefit and ecological benefit, and also provides technical support for sustainable planting of a Guizhou karst farmland ecological system.