101 results about "Plant Gums" patented technology

The invention relates to the technical field of functional food preparation, in particular to an instant sugar-free vitamin mineral composition and a preparation method thereof. The composition comprises vitamin microcapsule powder, vitamin mineral particles, maltodextrin and a food additive. The composition is prepared by a three-step method comprising the following steps: firstly, preparing fat-soluble vitamin, natural colloid, protein and the like into microcapsules; carrying out superfine grinding on water-soluble vitamins and mineral substances, granulating with maltodextrin and the like, and controlling the particle size of particles; and finally, mixing the components in proportion. Sugar-free wall materials such as natural vegetable gum, protein and fibers are adopted, traditional saccharides are not used, and the sugar-free wall materials have good instant solubility, dispersity and stability, can effectively cover bitter taste and metal taste of vitamins and mineral substances, are suitable for different people, especially people needing sugar control, and achieve comprehensive, stable and easy-to-absorb nutritional supplement.

The invention discloses a plugging material as well as a preparation method and a use method thereof, and relates to the technical field of plugging of a petroleum engineering technology. Comprising the following components: 3%-5% of starch, 2%-6% of vegetable gum, 16%-25% of a polymeric monomer compound, 5%-8% of a pH regulator, 0.05%-0.1% of a curing agent, 4%-12% of a gelation reagent, 3.2%-9.6% of a gelation auxiliary agent, 1%-4% of a dispersing agent, 0.05%-1% of an initiator, 3%-5% of a capsule gel breaker and the balance of water. The plugging material has good pumping performance on the ground, has certain viscosity, can be kept in a slug flow state in the pumping process, avoids leakage or formation of a half-section slug during waiting for cementing (gelling and curing), can realize rapid plugging after chemical reaction gelling at the bottom of a well, and has the advantages of high plugging efficiency and high plugging efficiency. And after the subsequent operation is completed, the plugging agent can be degraded and dissolved under the combined action of the formation temperature and the capsule gel breaker, so that the plugging purpose is achieved.

The invention discloses a nano-zinc oxide modified antibacterial fiber and a preparation method thereof, and relates to the technical field of functional fiber materials. The prepared nano-zinc oxide modified antibacterial fiber is based on natural polysaccharide, natural vegetable gum and a self-prepared nano-zinc oxide compound, an electrostatic spinning process is adopted, the nano-zinc oxide modified antibacterial fiber has good antibacterial performance, anticoagulation performance, biocompatibility and physical performance and has emergency sterilization and long-acting antibacterial functions, most of materials of the nano-zinc oxide modified antibacterial fiber are from natural substances, and the nano-zinc oxide modified antibacterial fiber is environmentally friendly. The invention is green, healthy and non-toxic, and provides a green and safe solution for medical and hygienic products.

The invention provides high-caking low-dust tofu cat litter and a preparation method thereof.The high-caking low-dust tofu cat litter is prepared from, by mass, 40%-60% of bean dreg fiber, 15%-25% of antibacterial high-capacity ammonia adsorption modified zeolite, 8%-15% of a composite binder, 1%-2% of compound vegetable gum, 1%-5% of a hydrophilic coating agent, 0.5%-3% of a food-grade dust suppressant and the balance water. According to the invention, agglomeration is enhanced through composite bonding and zeolite embedding, dust is reduced through a triple dust control process, long-acting deodorization and antibiosis are realized by virtue of modified zeolite, the finished product block mass is free of looseness, low in dust, deodorant and antibacterial, and the process is simple, convenient, easy to industrialize, capable of being naturally degraded and suitable for daily cleaning and nursing scenes of family pet cats.

The present invention belongs to the technical field of gel plaster preparation, and particularly relates to a gel plaster containing an environmentally friendly plant gum and its application. The present invention uses rice roots as raw materials to extract rice root plant gum, and uses the extracted rice root plant gum as a raw material to prepare a gel plaster, which can effectively increase the viscosity of the gel plaster and solve the problems of low viscosity and easy detachment of gel plasters in the prior art; at the same time, this gel plaster has no irritation and allergy to the skin. Secondly, the present invention makes full use of rice roots, turning waste into treasure and realizing resource recycling.

The invention discloses a cross-linking agent for gelation as well as a preparation method and application thereof, and relates to the technical field of working solutions for petroleum engineering, the cross-linking agent for gelation comprises the following components in percentage by mass: 10%-30% of multi-benzene-ring-containing long-chain polyboric acid, 5%-10% of polyethylene glycol, 4%-8% of alkali, 10%-25% of auxiliary ligand and the balance of water. The long-chain polyborate with a large steric hindrance structure is used for preparing the organic boron cross-linking agent, and the multi-head organic boron cross-linking agent with a long molecular chain is prepared through complex reaction of polyhydric alcohol, polymeric alcohol and the long-chain polyborate. According to the cross-linking agent which takes long-chain polyboronic acid containing multiple benzene rings as a main chain segment, at least one boron ion is linked on different benzene rings and comprehensively shows a macromolecular and multi-boron ion structure, not only can the concentration of vegetable gum cross-linked with the cross-linking agent be greatly reduced, but also the strength of formed gel is higher due to multi-point cross-linking in space.

The invention belongs to the technical field of packaging materials. The invention relates to an adhesive, in particular to a PVA adhesive tape adhesive and a preparation method thereof. The preparation method comprises the following specific preparation steps: mixing guar gum and water according to a mass ratio of 1: (15-20) for swelling, adding endo-beta-glucanase accounting for 0.3-0.5% of the mass of the guar gum, carrying out ultrasonic enzymolysis reaction for 30-45 minutes under the conditions that the pH is 5.0-5.2, the temperature is 48-52 DEG C and the ultrasonic frequency is 50-60 kHz, heating for enzyme deactivation, and cooling to obtain an activated vegetable gum solution; uniformly stirring and mixing a PVA (Polyvinyl Alcohol) solution and the activated vegetable glue solution, adding a thickening agent solution, continuously stirring and mixing uniformly, adding a composite modifier and potassium persulfate, carrying out heat preservation curing reaction for 2-4 hours at the temperature of 40-45 DEG C, aging for 24-36 hours, and discharging to obtain a mixed glue solution; and coating the mixed adhesive solution, and drying to obtain the PVA adhesive tape adhesive.

The present application relates to the technical field of facial mask cloths, and specifically discloses a plant fiber air cotton facial mask cloth and a preparation method thereof. A plant fiber air cotton facial mask cloth is made of the following raw materials in parts by weight: 80-100 parts of plant fiber air cotton original cloth; 1.2-1.8 parts of sepiolite powder; 5-8 parts of hydroxypropyl cellulose; 2-4 parts of water-soluble plant gum; 10-20 parts of water; its preparation method is: after hydroxypropyl cellulose, water-soluble plant gum and water are stirred and mixed evenly, sepiolite powder is added, and stirring and mixing is continued to obtain a treatment liquid; then after the plant fiber air cotton original cloth is unfolded, the treatment liquid is evenly sprayed on the surface of the plant fiber air cotton original cloth, and hot air is blown during the spraying process. After drying after airing, the plant fiber air cotton facial mask cloth can be obtained. The plant fiber air cotton facial mask cloth of the present application, when used in combination with a facial mask liquid, can have a relatively outstanding and excellent water holding capacity in an environment with a higher temperature, thereby ensuring the stable and excellent performance of the functional ingredients in the facial mask liquid.

The invention relates to a preparation method of a fiber-based curry sauce capable of resisting reheating nutrition loss and the curry sauce. Comprising the following steps: 1) juice absorption: long protein fibers absorb turmeric juice to obtain a fiber material A; 2) rubber powder film coating: uniformly mixing the fiber material A with vegetable rubber powder, and shearing to obtain a fiber material B; 3) oil-emulsion blocking: uniformly mixing an emulsifier and vegetable oil, and uniformly mixing the obtained oil-emulsion material C with the fiber material B to obtain a protein fiber base material; and 4) stir-frying and curing: weighing vegetable oil, heating, adding a flavoring agent, mixing with the vegetable oil, stir-frying, adding a mixture of wheat flour, mashed potato and water, uniformly mixing to obtain a seasoning sauce, adding the protein fiber base material, uniformly mixing, curing, packaging, and sterilizing to obtain the curry sauce. Through the processes of juice absorption, rubber powder film covering, oil emulsion blocking and stir-frying and curing, the curry sauce is repeatedly heated for multiple times, so that the loss of curcumin can be reduced, and the curry sauce can be easily adhered to the surface of food to obtain better taste and flavor.

Disclosed is a microcapsule containing: (i) a microcapsule core having an active material, and (ii) a microcapsule wall formed of a first polymer and second polymer. The first polymer is a sol-gel polymer. The second polymer is gum arabic, purity gum ultra, gelatin, chitosan, xanthan gum, plant gum, carboxymethyl cellulose, sodium carboxymethyl guar gum, or a combination thereof. The weight ratio between the first and second polymer is 1:10 to 10:1. Also disclosed are processes for preparing the microcapsule and uses of the microcapsules in consumer products.

The present application relates to the field of pet feed, and discloses a maintenance ration formula for improving the smoothness of dog hair. The formula comprises base ration particles and lipid microcapsules attached to the surface of the base ration particles; the lipid microcapsules encapsulate a core material composed of essential fatty acids and ceramides, have a double-layer wall material structure, and the outer layer is acid-resistant plant gum and the inner layer is lipase-sensitive phospholipid; the microcapsules are attached to the surface of the puffed base ration by low-temperature vacuum spraying. The present application makes the microcapsules resistant to gastric acid and releases the core material under the action of duodenal lipase, targets and enriches in sebaceous glands through the lymphatic system, solves the problems of low lipid delivery conversion rate and insufficient substrate of sebaceous glands, improves the proportion of sebaceous gland ceramides, and reduces the hair friction coefficient.

The Anhua preserved meat product is smoked by resource utilization of the plant residue. The invention belongs to the field of meat products, and provides a technical scheme of using plant residues as a smoking material of Anhua preserved meat type cured meat products. The vegetable glue is used for bonding the plant residues, and is natural and harmless. Particularly, when glutinous rice or glutinous rice or glutinous rice powder is used as the adhesive of the bacon smoking material prepared from the plant residues, at least the technical effects can be generated: (1) the density after adhesion is highest and can be close to the density of hardwood; (2) the meat product can be endowed with natural glutinous rice fragrance; (3) the operation temperature does not need to be high, and the operation can be performed at about 100 DEG C; when the plant dregs are prepared into the artificial smoking material for smoking Anhua preserved meat products, if a cold smoking process is adopted, tests under the same mass (weight) and the same smoking condition show that the smoking efficiency is improved compared with that of direct use of the plant dregs: (1) the smoking time is greater than or equal to 30%; and (2) the smoke density (MSD) value is greater than or equal to 20%.

The invention relates to the technical field of food-grade materials, in particular to a food-grade porous material and a preparation method thereof. The preparation method comprises the following steps: gradually carrying out enzymolysis on corn flour by alkaline protease and amylase under the conditions of proper temperature and pH, continuously stirring, adding food-grade vegetable gum, and forming porous glycoprotein under the assistance of ultrasonic waves; the porous glycoprotein is uniform in pore size and is 0.5-3 microns, and the surface of the porous glycoprotein is rich in functional groups, so that the porous glycoprotein has good adsorption performance and has very high adsorbability on hydrophobic compounds such as metal ions, pesticide residues, kitchen oil stains and the like. The preparation process is simple, chemical reagents do not need to be introduced, and safe and non-toxic substances are completely adopted as materials for preparing the porous material, so that the product is food-grade, small in damage to human bodies and the environment and wide in application in the food field.

The invention relates to a sweetend roll containing fermented Furong plum and areca taros. The sweetend roll comprises the following raw materials in parts by weight: 2-4 parts of fermented Furong plum fruit powder, 5-15 parts of areca taros pulp, 50 parts of hawthorn pulp, 40-60 parts of compound syrup and 25-30 parts of water. The compound syrup contains oligosaccharide. By compounding the fermented Furong plum fruit powder, the betel nut taro pulp, the hawthorn fruit pulp and the compound syrup according to a proper proportion, flavor, texture and health can be considered at the same time, the fermented Furong plum fruit powder can generate unique aromatic substances, and the unique aromatic substances are well fused with the hawthorn smell, so that the flavor of the product is enriched; plant colloids in the areca taros and the hawthorn pectin can form a synergistic gel network, so that the formability, chewiness, toughness and the like of the product can be ensured without adding a thickening agent; the oligosaccharide-containing composite syrup not only can achieve the purpose of reducing blood sugar, but also can assist in strengthening the betel nut taro-hawthorn main gel network structure, and improves the formability and viscoelasticity of the product.

The invention discloses a dipotassium phosphate synergist for plant-based food and a preparation method of the dipotassium phosphate synergist. The dipotassium phosphate synergist for the plant-based food comprises the following components in percentage by mass: 15%-40% of nanocrystallized dipotassium phosphate; 30%-60% of composite plant colloid, wherein the composite plant colloid is prepared by cross-linking natural anionic polysaccharide and nonionic polysaccharide; 3%-8% of an interface function auxiliary agent, wherein the interface function auxiliary agent is prepared by adopting a layered film, nano-scale filling particles and molecular-scale chelating metal ions in a synergistic manner; 10%-25% of a microporous carrier; and 0.5%-3% of an ion migration inhibitor, which is prepared by synergistically using amphiphilic molecules and cationic polypeptides. The dipotassium phosphate synergistic system with the intelligent response characteristic is constructed through three technical innovations of nanostructure design, biological interface engineering and supercritical processing, and the problems of water separation, ion migration and texture stability of dipotassium phosphate in a plant protein matrix can be solved through a multi-component synergistic effect.

The cold-smoked Anhua preserved meat is subjected to resource utilization of bagasse, camellia oleifera shells, camellia oleifera meal and the like. The invention belongs to the field of meat products, and relates to a technical scheme of taking bagasse, camellia oleifera shells and camellia oleifera meal as smoking materials of an Anhua bacon type cured and smoked meat product and the Anhua bacon type cured and smoked meat product produced by using the bagasse, the camellia oleifera shells and the camellia oleifera meal. The ratio of the powdery bagasse to the camellia oleifera shells to the other raw materials to the vegetable gelatin is (50-70): (50-60): (10-20); or the ratio of the powdery bagasse to the camellia oleifera shells to the vegetable gum is (80-100): (10-20); or the content of waxy grains such as glutinous rice (glutinous rice), waxy corn and powder thereof accounts for 5-30% of the whole material ratio. A cold smoking process is adopted, and tests with the same mass (weight) and the same fuming condition show that the smoking efficiency is improved compared with that of direct use of bagasse, camellia oleifera shells and camellia oleifera meal: (1) the fuming time is greater than or equal to 30%; and (2) the smoke density (MSD) value is greater than or equal to 20%.

The invention provides a mousse product and a preparation method thereof.The mousse product is prepared from, by mass, 6%-93% of dairy products, 5%-20% of edible sugar, 0.2%-0.5% of emulsifying agents, 1.5%-2.5% of compound thickening stabilizers, 0.3%-1% of essence and water, and the mousse product has the smooth and dense taste; gelatin in a traditional mousse product is replaced with a compound thickening stabilizer, the compound thickening stabilizer comprises modified starch and colloid, and the colloid adopts at least one of accessory vegetable gum, seaweed gel, cellulose gum and microbial fermentation gel and can serve as a supporting body of the mousse product. The mousse product can be shaped at normal temperature and stored for a long time, does not need refrigeration equipment in industrial production and transportation processes, and is convenient to transport and sell.

The present invention relates to an environmentally friendly, stable colored mud and a preparation method and application thereof, and belongs to the technical field of gel materials. The colored mud includes the following raw materials in parts by weight: 30-40 parts of modified starch, 5-10 parts of vegetable gum, 10-20 parts of lithium magnesium silicate, 10-20 parts of stabilizer, 5-10 parts of cross-linking agent, 20-30 parts of citrate, 2-5 parts of polyol, and 0-5 parts of toner; wherein the stabilizer is a composition of glycerol, cellulose and casein; the cross-linking agent is N, N'-methylenebisacrylamide; the colored mud of the present invention does not add a cross-linking agent harmful to the human body, and the raw materials selected are all environmentally friendly and harmless to the human body. The colored mud of the present invention has good tensile properties, excellent stability, and improved playability. The environmentally friendly and stable colored mud is suitable as a children's toy.

The present application belongs to the technical field of packaging materials. More particularly, it relates to a PVA adhesive tape adhesive and a preparation method thereof. The specific preparation steps of the present application include: after guar gum and water are mixed and swelled according to a mass ratio of 1:15-20, 0.3-0.5% of endo-beta-glucanase of the mass of the guar gum is added, under the conditions of pH 5.0-5.2, temperature 48-52 DEG C, ultrasonic frequency 50-60 kHz, ultrasonic enzymolysis reaction for 30-45 min, enzyme inactivation by heating, cooling, and then activated plant gum solution is obtained; after the PVA solution and the activated plant gum solution are stirred and mixed uniformly, a thickening agent solution is added, and after continued stirring and uniform mixing, a composite modifier and potassium persulfate are added, under the condition of temperature 40-45 DEG C, incubation and maturation reaction for 2-4 h, aging for 24-36 h, and then discharging, a mixed glue solution is obtained; after the mixed glue solution is coated and dried, a PVA adhesive tape adhesive is obtained.

The invention discloses a plant capsule raw material grinding device, and belongs to the technical field of plant capsule processing. Comprising a conveying belt, one end of the conveying belt is connected with a smashing assembly, the lower end of the smashing assembly is connected with an operation cavity, ground powder can move towards a second conveying pipe along a screening sliding groove, and in the powder moving process, the powder meeting the screening standard can fall into a circular collecting cavity through screening holes; powder which does not conform to the screening standard falls into the material receiving cavity, at the moment, the dust collector conveys the powder which does not conform to the screening standard into the material storage cavity, and grinding operation is carried out, so that the grinding assembly and the material conveying assembly generate a multi-linkage effect, and the ground powder which does not conform to the screening standard can be ground again; therefore, the percentage of the ground raw materials meeting the screening standard is improved, the quality of powder obtained after the raw materials are ground is improved, and meanwhile the grinding efficiency of the grinding device is improved.

The invention discloses a natural Chinese herbal medicine printing paste formula which is prepared from the following raw materials in parts by weight: 20-30 parts of Chinese herbal medicine powder, 30-50 parts of vegetable glue, 10-15 parts of animal glue, 5-10 parts of chitosan, 2-3 parts of citric acid, 3-5 parts of sodium chloride and the balance of water. The invention has the beneficial effects that the raw materials of the formula of the printing paste in the technical scheme are selected from natural, non-toxic and screened paste suitable for human skin to prepare the washable natural Chinese herbal medicine printing paste, and by applying the printing paste, the problem of skin allergy is effectively avoided, and meanwhile, the washable performance of a fabric is also improved; the printing ink is widely applicable to printing of various treatment and health care textiles in contact with skin.

The invention discloses a preparation method of pure mycelia, the pure mycelia and application. The method comprises the following steps: S1, preparing a mycelia solid culture medium; S2, preparing a mycelia paste culture medium; S3, forming the mycelia paste culture medium and fermenting mycelia; according to the method, a continuous, compact and thickness-controllable pure mycelium layer is formed on the surface of a pasty fluid culture medium in a manner of combining solid culture and pasty fluid culture, and a mycelium biological material with excellent physical properties can be obtained without adopting a bracket or an adhesive material. The preparation method has the advantages of simple steps, no need of a complex sterilization mode, short preparation period, low cost, capability of forming large-area pure mycelia at one time, suitability for large-scale industrial production, mild preparation conditions, greenness and environmental protection. The prepared pure mycelium can be applied to mycelium leather or mycelium meat, does not need an adhesive when being used for the mycelium leather, is excellent in material physical performance, does not need chemical or plant adhesives when being used for the mycelium meat, and is good in taste and high in nutrition.

The invention relates to the technical field of Chinese herbal medicines and dyeing and finishing processes, and discloses a Chinese herbal medicine dyeing formula of fabric and a processing process thereof, the formula comprises the following components: 1-8% of natural dye, 10-14% of Chinese herbal medicine dyeing agent, 1-3% of vegetable gum, 1-2% of chitosan, 5-10% of sodium chloride, 4-10% of fatty acid, and 3-6% of ethanol. According to the invention, the Chinese herbal medicine powder, the natural dye and the natural auxiliary agent are adopted to form a dyeing agent formula, so that the final product is bright in color, safe and healthy, and the textile produced according to the formula is bright in color, excellent in color fastness, healthy and environment-friendly, and has multiple health care effects.

The invention relates to a smoking material prepared from Anhua dark tea and a method for cold smoking Anhua preserved meat by using the smoking material. The invention belongs to an artificial smoking material taking Anhua dark tea and the like as basic raw materials and a preparation method of the artificial smoking material, and is particularly suitable for Anhua preserved meat and other preserved meat products needing a smoking process. The smoking material is prepared from the following raw materials in parts by mass: 50-70 parts of Anhua dark tea and camellia oleifera cakes, 50-60 parts of other raw materials and 10-20 parts of vegetable gelatin. The preparation method comprises the following steps: performing gradient temperature control drying at 148-138 DEG C for 30 + / -5 minutes, mixing with vegetable gum, and performing compression molding at 220 + / -11 DEG C under the pressure of 98 + / -12 kg / cm < 3 >, the moisture content of less than or equal to 9% and the finished product density of more than or equal to 0.8 g / cm < 3 >, so that the preparation method is suitable for an Anhua preserved meat cold smoking process, and the smoking temperature of less than or equal to 30 DEG C. Particularly, when glutinous rice, highland barley grains or rice and powder thereof are used as the adhesive of the Anhua dark tea and oil-tea camellia cake-made preserved meat smoking material, at least the technical effects can be generated: (1) the density after adhesion is highest and can be close to the density of hardwood; (2) the meat product can be endowed with natural glutinous rice fragrance; (3) the operation temperature does not need to be high, and the operation can be performed at about 100 DEG C;

This invention discloses an oil-resistant and plastic-removable food-grade biodegradable paper, its preparation method, and its application. The biodegradable paper includes a base paper and an aqueous oil-resistant coating applied to at least one surface of the base paper. The aqueous oil-resistant coating comprises the following raw material components in parts by weight: 30-48 parts of hybrid acrylic emulsion; 15-25 parts of polyacrylic acid emulsion; 1-3 parts of acetylation diol surfactant; 5-10 parts of wax component; 2-5 parts of cellulose nanocrystals; 1-3 parts of plant gum; and 0.5-2 parts of hydroxyethyl cellulose thickener. This invention achieves complete plastic removal, full biodegradability, excellent water and oil resistance, safety and non-toxicity, stable mechanical strength, and simple preparation of food-grade packaging paper.

This invention discloses an inorganic powdered aromatherapy coating and its preparation and application methods. The coating comprises the following raw materials in weight percentages: slaked lime powder: 50%–65%; glutinous rice extract: 10%–18%; short-cut hemp fibers (80-120 mesh): 5%–10%; short cotton fibers (100-150 mesh): 3%–8%; natural mineral fillers: 5%–12%; composite fragrance powder: 8%–15%; nano-silica: 0.5%–2%; and natural plant adhesives: 0.5%–2%. This invention utilizes modern microencapsulation technology, fiber orientation process, and optimized inorganic matrix formulation to prepare the inorganic powdered aromatherapy coating. This coating not only provides a long-lasting, health-beneficial aroma release but also allows for the creation of various modern artistic textures through application techniques, achieving a deep integration of material and aesthetics. It is suitable for the restoration of ancient buildings, Chinese garden architecture, and interior wall decoration of health-oriented living spaces.

The invention relates to a preparation method of a purslane extracting solution with a soothing effect, and belongs to the field of cosmetics and biological extraction. The preparation method comprises the following steps: crushing fresh wild purslane, adding a butanediol-water mixed solvent, carrying out ultrasonic wall breaking treatment at 55-58 DEG C, and adding plant fiber hydrolase, vegetable gum hydrolase, plant starch hydrolase and plant protein hydrolase to carry out synergistic enzymolysis extraction; heating, inactivating and filtering the extracting solution, sequentially performing multi-stage purification by adopting chitosan flocculation, activated carbon decoloration, ceramic membrane filtration, ultrafiltration and nanofiltration, and collecting trapped fluid with the molecular weight of more than 150-300 Da through nanofiltration; and adding the humectant and the preservative. Through combination of ultrasonic-enzymolysis synergistic extraction and multi-stage membrane separation and purification, active ingredients such as polysaccharide and flavone in purslane are efficiently reserved under mild conditions, the inhibition rate of the obtained extracting solution to hyaluronidase activity reaches 20% or above, and the extracting solution has a soothing effect and good product stability and can be applied to soothing cosmetics or skin care products.

The invention discloses a soft capsule, a vegetable gum composition and a detection method of the soft capsule. The vegetable gum composition comprises the following components in percentage by weight: 4-20% of carrageenan; 60-85% of a starch film-forming agent containing cassava oxidized hydroxypropyl; wherein the final viscosity MVU of the cassava oxidized hydroxypropyl is 100 to 300 WF, the carboxyl content is 0.025 to 0.4 g / 100 g, and the hydroxypropyl content is 3.0 to 5.0 g / 100 g; 8-15% of a plasticizer; and 0-6% of a coagulant aid.

The invention provides a plugging agent for refracturing as well as a preparation method and application of the plugging agent. The plugging agent for refracturing comprises the following components: 3%-4% of an inducer, 10%-14% of vegetable gum latex, 3%-4% of a terminator, 7%-10% of a stabilizer, 1%-2% of a cross-linking agent, 2%-3% of acrylamide and 66%-71% of water, wherein the vegetable gum latex is polymerized under the action of the inducer and then mixed with other components, and the plugging agent for refracturing is obtained. The plugging agent for refracturing can form high-strength plugging at a pressure difference position, the residual plugging agent still keeps low viscosity, and the plugging agent has good fluidity.