367 results about "Gellan gum" patented technology

The invention discloses injectable hydrogel for photo-thermal adjuvant therapy of periodontitis and a preparation method, and belongs to the technical field of high polymer material preparation, the preparation method comprises the following steps: reacting MXene dispersion liquid with epigallocatechin gallate and MgSO4; then sequentially carrying out ultrasonic treatment, centrifugation, washing and freeze-drying to obtain a multifunctional nanosheet MP-Mg; adding the multifunctional nanosheet MP-Mg into an oxidized gellan gum aqueous solution, and carrying out a mixed reaction to obtain a solution A; mixing the quaternary ammonium salt chitosan aqueous solution and the carboxymethyl chitosan aqueous solution in equal volume, and reacting to obtain a solution B; and mixing the solution A and the solution B in equal volume for reaction. The hydrogel prepared by the preparation method disclosed by the invention has injectability, photo-thermal responsiveness, biological membrane penetrability, synergistic antibacterial property and long-acting anti-inflammatory property, and an innovative and practical photo-thermal adjuvant therapy platform is provided for clinical treatment of periodontitis.

The invention discloses organic nano composite hydrogel as well as a preparation method and application of the organic nano composite hydrogel, and belongs to the technical field of biological medicine delivery. The polysaccharide-based nano prodrug in the composite hydrogel can be subjected to surface protonation under the stimulation of a tumor extracellular slightly acidic environment, so that cellular uptake is promoted, low-pH / high-concentration glutathione in tumor cells is responded, intracellular aggregation and controllable release of the nano drug are realized, the retention time of the drug in the cells is prolonged, and the bioavailability of the drug is improved. The technical effect of killing tumor cells through combined chemotherapy is achieved. According to the preparation method disclosed by the invention, the release of the polysaccharide-based nano prodrug from the hydrogel and the tissue infiltration capacity are accelerated by adopting fluorinated orthoester, the infiltration of the polysaccharide-based nano prodrug to cells is increased, and then the drug-loaded compound is encapsulated by using gellan gum, so that the slow-release effect of the polysaccharide-based nano prodrug is enhanced; therefore, the efficient enrichment of the medicine at the tumor part is realized.

The application discloses a preparation method of a sandwich structure bio-based composite nanofiber aerogel material, and comprises the following steps: step 1), heating and stirring to dissolve low acyl gum; step 2), mixing the product obtained in step 1) with a hot aqueous solution of MXene; step 3), freeze-drying treatment of the aqueous solution of MXene to obtain a compressed layer of MXene; step 4), pasting and covering the product obtained in step 3) on an outer layer obtained in step 2), pouring the gum solution obtained in step 1) into the outer layer to obtain a sandwich structure composite hydrogel; step 5), soaking the product obtained in step 4) in a metal salt solution to harden; step 6), soaking the product obtained in step 5) in an organic solvent solution; and step 7), drying the product obtained in step 6) by using a supercritical liquid carbon dioxide drying method to obtain the sandwich structure bio-based composite nanofiber aerogel. The material has low thermal conductivity.

A wellbore fluid includes a continuous phase comprising an oleaginous fluid, a discontinuous phase comprising a non-oleaginous fluid, an emulsion of the discontinuous phase in the continuous phase, at least one emulsifier disposed around droplets of the discontinuous phase, at least one gelling material comprising at least one of xanthan gum, scleroglucan gum, gellan gum, carrageenan gum, or curdlan gum, and at least one crosslinker dispersed within the non-oleaginous fluid of the discontinuous phase. Related methods and treatment fluids are also disclosed.

The invention relates to the technical field of food processing, and provides a condensate gum citrus fiber compound and application thereof in plant-based sausages. The preparation method of the condensate gum citrus fiber compound comprises the following steps: S1, crushing and centrifuging citrus peels to obtain solid and liquid, and adding water into the solid to obtain citrus fiber slurry; s2, adjusting the pH value of the citrus fiber slurry to 8-9, and performing homogenization treatment to obtain pretreated citrus fibers; s3, pea protein and gellan gum are added into the pretreated citrus fiber for mixing, the temperature is reduced to 15 DEG C or below, and the condensate gum citrus fiber compound is obtained through homogenization treatment. Through the technical scheme, the problems of poor taste, poor texture, poor nutrition balance and poor processing stability of plant-based sausages in related technologies are solved.

The invention relates to the technical field of food processing and making, and discloses a konjac food and a making method thereof, and the making method comprises the following steps: raw material pretreatment, swelling and dispersion, enzymolysis treatment, gel matrix preparation, flavor substance embedding, mixing and degassing, curing forming, ultrahigh pressure treatment and post-sterilization and packaging. In the invention, the konjac micro-powder is subjected to controllable enzymolysis through the compound bio-enzyme preparation, and the konjac micro-powder and the gel matrix liquid composed of carrageenan, gellan gum and curdlan gum in a specific ratio have a synergistic effect under a curing condition, so that the konjac colloid and the gel matrix are interwoven to form a compact and stable cementing system, and the texture of the konjac food is improved; according to the method, the plant-derived flavor extract is added, so that the taste of the plant-derived flavor extract is uniform and consistent, the defect that the traditional process product is unstable in texture or easily generates bad flavor is overcome, the plant-derived flavor extract is embedded by adopting beta-cyclodextrin, and the plant-derived flavor extract is converted into a microcapsule form through high-pressure homogenization and spray drying processes.

The invention discloses an elastic chewable nicotine oral product and a preparation method thereof. The elastic chewable nicotine oral product comprises a nicotine source and an additive, the nicotine source is dissolved in the mixed solution of the additive, so that the nicotine oral product forms a soft elastomer, and the nicotine is slowly released in the oral cavity through chewing; the nicotine source is extracted or chemically synthesized from tobacco; the additive comprises a gelling agent, and the gelling agent comprises one or a combination of more of gelatin, agar, konjac polysaccharide, xanthan gum, pectin, carrageenan, sodium alginate, semen plantaginis polysaccharide, guar gum, gellan gum, curdlan, whey protein, casein or soybean protein. The gel is added into the carrier to realize physical embedding of the nicotine, the elastic and chewable oral nicotine product can be obtained without bonding fixation, and the nicotine is released through gel swelling-diffusion regulation, so that the oral nicotine product has no residue in the oral cavity and does not pollute the package when being used, and the purposes of dynamically releasing the nicotine and improving the consumption experience are realized.

The application discloses a tilapia collagen piezoelectric hydrogel and application of the tilapia collagen piezoelectric hydrogel in preparation of biomaterials for treating tissue injury. The piezoelectric hydrogel is collagen / oxidized gellan gum / barium titanate hydrogel, presents an irregular interconnected porous structure, the compressive strength of the piezoelectric hydrogel is 46.26-95.74 kPa, and the output voltage is 4.47-90.59 mV. The piezoelectric hydrogel based on tilapia collagen is introduced, amino titanium acid barium and oxidized gellan gum are introduced to improve the physical properties of the hydrogel, piezoelectric characteristics are integrated into the hydrogel, and therefore, the dependence of a traditional electric stimulation device on an external power supply is avoided.

The invention discloses a toning lotion composition, and belongs to the technical field of cosmetics. The toning lotion composition is prepared from the following preparation raw materials in percentage by mass; 0.09%-0.23% of a thickening agent, 2%-9% of an oily component, 0.1%-2% of a stabilizing agent and the balance of water; the thickening agent is prepared from agarose, gellan gum and xanthan gum; the stabilizing agent is selected from at least one of sodium chloride, calcium chloride or disodium EDTA (Ethylene Diamine Tetraacetic Acid); the viscosity of the toning lotion composition at the temperature of 25 DEG C is 50 to 500 Pa.s. The toning lotion has fresh and cool use feeling and moist degree of oil, is high in transparency and flexible in use mode, can be used as essence for smearing and can also be atomized through a spray bottle.

The invention discloses a thick milk base as well as a preparation method and application thereof. The thick milk base comprises the following raw materials: 0.2%-0.3% of a compound emulsifying thickener, 8%-10% of vegetable oil, 2.2%-2.6% of an emulsifier and water, wherein the mass of each component accounts for the total mass of the raw materials of the thick milk base; the compound emulsifying thickener comprises carrageenan, gellan gum, microcrystalline cellulose and sodium carboxymethyl cellulose, and the mass ratio of the carrageenan to the gellan gum to the microcrystalline cellulose to the sodium carboxymethyl cellulose is (1-3): 1: (7-9): (1-3). The thick milk base disclosed by the invention can be stored under a normal-temperature condition, is uniform and fine in tissue state, and has good preservation stability.

The invention relates to the technical field of fermented beverages, in particular to a preparation method of a high-activity fruit and vegetable probiotic fermented beverage, which comprises the following steps: adding composite fruit and vegetable juice after enzymolysis, mineral water, xylooligosaccharide, grape seed extract, yeast extract and xanthan gum into a fermentation tank, and stirring until the materials are completely dissolved; then carrying out sterilization treatment by adopting high-temperature instantaneous sterilization; adding probiotic microcapsules into the sterilized mixed liquid, and performing staged temperature-controlled fermentation to obtain fermentation liquid; and performing homogenization treatment on the fermentation liquid, and finally performing vacuum degassing to obtain the high-activity fruit and vegetable probiotic fermented beverage. A composite wall material (sodium alginate-eucheuma powder-gellan gum) of the probiotic microcapsule forms a compact gel network to effectively isolate phenols, organic acids and other antibacterial components in fruits and vegetables, so that the damage of pH fluctuation and temperature change to thalli is resisted.

The invention relates to the technical field of beverage processing, in particular to a poplar branch sweet dew beverage which comprises the following components in percentage by mass: 30-35% of mango pulp, 15-18% of coconut milk, 8-10% of sago, 3-5% of grapefruit pulp granules, 0.05-0.08% of a compound stabilizer, 4-6% of erythritol and 0.01% of calcium lactate. Wherein the compound stabilizer is composed of high-acyl gellan gum and low-ester pectin according to the mass ratio of 3: 1, and the mango pulp contains 20% of diced mangoes with the particle size of 3-5 mm < 3 >; the particle size of the grapefruit pulp particles is 1-2 mm. According to the method, the static limitation of the traditional Stokes law is broken through, the sedimentation velocity prediction error is compressed from + / -25% to + / -8% through the dynamic equivalent radius, the temperature-shear coupling function and the network inhibition factor, and a precise regulation and control tool is provided for development of high-stability pulp beverages.

The invention provides a medium-low permeability oil reservoir rhamnolipid foam oil displacement system and a screening method and application, and relates to the technical field of microbial oil recovery, the medium-low permeability oil reservoir rhamnolipid foam oil displacement system comprises the following steps: S1, screening an applied oil reservoir; s2, determining a rhamnolipid foam flooding system based on the oil reservoir mineralization degree; s3, based on the porosity of the oil reservoir, the injection mode of a rhamnolipid foam oil displacement system is determined, the rhamnolipid foam oil displacement system comprises a foaming agent, a foam stabilizer, nitrogen and water, the foaming agent comprises one or more of dirhamnose difat, dirhamnose monofat, single rhamnose monofat and single rhamnose difat fermentation liquor, and the foam stabilizer comprises one or more of dirhamnose difat, dirhamnose monofat, single rhamnose monofat and single rhamnose difat fermentation liquor. The foam stabilizer is prepared from one or more of xanthan gum, welan gum, Wollan gum, Dide gum, gellan gum, rhamnose gum, diidine gum, plant cellulose and bacterial cellulose. The method has the beneficial effects that the oil reservoir application range is wide, the pertinence is high, the field test effect is good, efficient generation and long-acting migration of foam in the oil reservoir are guaranteed, green and high-quality development of old oil fields is promoted, and achievement of the national dual-carbon strategy is assisted.

The invention relates to the technical field of conductive adhesives, in particular to a conductive hydrogel adhesive with a temperature phase change characteristic for fixing a skin electrode, and the conductive hydrogel adhesive comprises the following components in parts by weight: 5-20 parts of a structural component; the gel is selected from at least one of gelatin, collagen, agar, chitosan, sodium alginate, gellan gum, methyl cellulose and xanthan gum; 1-5 parts of a conductive substance; 5-10 parts of a water retention component; and 50-70 parts of water. The prepared adhesive has excellent adhesive performance and conductivity, the material cost is low, the adhesive is green and environmentally friendly, the use method is simple and convenient, and optimal use of most electrodes in the market can be promoted.

The present application relates to a kind of carboxymethylated gellan gum composite hydrogel that can promote the preparation method of infectious skin wound healing, the present application will be a certain concentration of carboxymethylated gellan gum with the solution of active ion (Ca 2+ 、Cu 2+ 、Zn 2+ ) of proper proportion, using ion crosslinking method to prepare carboxymethylated gellan gum hydrogel.The prepared hydrogel has fast gelation, good injectability, self-healing, tissue adhesion performance and excellent bacteriostatic effect, and can effectively promote the healing of infected wound, has potential application prospect in the treatment of wound infection.

The invention belongs to the field of biomolecule detection, and discloses a polysaccharide high-throughput detection method and application. The method can be used for detecting the heparin precursor, a sample does not need to be purified, the heparin precursor in a complex sample can be directly recognized and degraded by enzyme specificity to generate disaccharide, and then the content of the disaccharide of the heparin precursor is detected through high-throughput EchoMS, so that the heparin precursor is subjected to rapid, high-throughput, qualitative and quantitative analysis; the method is used for screening and evaluating elements influencing heparin precursor synthesis, screening and evaluating heparin precursor synthesis strains, optimizing the heparin precursor fermentation process and the like. The method can also be used for high-throughput detection of glycosaminoglycans such as hyaluronic acid, heparin and chondroitin sulfate and other polysaccharides such as pullulan, curdlan, xanthan gum and glucan, and can be used for structural analysis of polysaccharides.

The invention discloses a method for synergistically improving the bleeding problem in the storage process of pea starch-quinoa protein gel through proteolysis and gellan gum addition. The invention provides a method for preparing gel. The method comprises the following steps: (1) mixing enzymolysis quinoa protein, pea starch, gellan gum and water to obtain a mixed suspension; and (2) heating and gelatinizing the mixed suspension, and cooling and molding to obtain the gel. The gel prepared by the method has the beneficial effects that the water binding capacity is high, and the bleeding rate is low; microscopic structure observation shows that a highly compact and uniform network is formed, and no obvious bubbles exist; low-field nuclear magnetic resonance analysis shows that the bound water proportion is obviously increased; a dynamic rheological test proves that the gel has excellent gel stability; and the process is simple and safe and easy for industrial production. The invention provides a reliable technical scheme for the development of high-protein nutritional soft food for old people.

The application relates to preparation of indoor potted solid water and belongs to the field of solid water preparation. A preparation method is as follows: nitrogen is introduced into a four-necked flask for 10 min to remove air, wheat bran and wheat B starch wastewater are added, heating and stirring are carried out, sodium alginate and gellan gum are added to prepare A liquid; acrylic acid is neutralized by adding 25% NaOH solution under the condition of an ice water bath, after the neutralized liquid is cooled to room temperature, 2-acrylamide-2-methylpropanesulfonic acid, bentonite, methylene bisacrylamide and potassium persulfate are added to prepare B liquid; B liquid is slowly added into A liquid, heating and stirring are carried out to perform polymerization reaction, after the reaction is completed, filtration is carried out, anhydrous ethanol and distilled water are used for washing, and indoor potted special solid water is obtained. The indoor potted solid water provided by the application can provide convenience for office workers to maintain potted plants, can improve soil permeability and water absorption and water retention capacity, has a long use period, and is prepared by using natural degradable materials and has low cost.

This invention discloses a mushroom-based edible paper and its preparation method, belonging to the field of food technology. The mushroom-based edible paper comprises the following raw material components: 100-500 parts wheat flour, 100-200 parts mushroom powder, 10-50 parts corn flour, 10-50 parts oat flour, 10-100 parts soybean flour, 1-10 parts probiotics, 10-50 parts gellan gum, 10-50 parts gum arabic, 10-100 parts glycerol, 1-50 parts calcium chloride, and 1-5 parts sodium bicarbonate. This invention combines mushroom powder with wheat flour, corn flour, oat flour, and soybean flour, and then ferments it with *Lactobacillus plantarum* MXC. The resulting mushroom-based edible paper overcomes the shortcomings of traditional edible paper, such as poor strength, difficulty in shaping, and poor texture. The prepared mushroom-based edible paper has the characteristics of low GI, enhanced paper strength and wet strength, resistance to breakage, long shelf life, and low water vapor permeability; moreover, it can be widely used as green packaging paper in the food, pharmaceutical, and other fields.

The application discloses a fruit sweet tobacco sweet tobacco explosive bead essence and a preparation method and application thereof, and relates to the technical field of tobacco.A fruit sweet tobacco sweet tobacco explosive bead essence is composed of core materials and modified sodium alginate-based composite wall materials.The modified composite wall material system constructed by the application significantly enhances the resistance to environmental moisture erosion.Nano-crystalline cellulose grafted polydopamine serves as a rigid reinforcing phase, and cooperates with the hydrophobic effect of acetylated gellan gum and a multiple cross-linking network, thereby greatly improving the structural stability of the wall material under dynamic temperature and humidity conditions, and fundamentally solving the physical performance deterioration problem caused by the moisture absorption and softening of the sodium alginate-based wall material.Meanwhile, flavor substances are respectively encapsulated in different carriers such as nano-liposomes and slow-release microspheres, so that the flavor discontinuity caused by the difference in polarity and volatility is effectively overcome, the fruit sweet fresh feeling, the tobacco characteristic sweet feeling and the tobacco original flavor can be sequentially presented, and the flavor loss during storage is reduced.

This invention proposes a combined inhibitor for separating bastnaesite and monazite, along with its method and application. The raw materials for the combined inhibitor include small organic molecules and microbial polysaccharides; the small organic molecules include one or more of oxalic acid, malic acid, tartaric acid, lactic acid, succinic acid, and citric acid; the microbial polysaccharides include one or more of currant gum, guar gum, xanthan gum, and gellan gum. This invention achieves highly selective inhibition of monazite on the mineral surface through the synergistic adsorption and action of the inhibitor, with small organic molecules and microbial polysaccharides as the main components, thereby efficiently separating bastnaesite under mild flotation conditions. It offers advantages such as good selectivity, strong action, low reagent cost, and environmental friendliness.

The invention provides chocolate difficult to soften as well as a preparation method and application thereof. The chocolate comprises a chocolate core and a colloid layer coating at least part of the outer surface of the chocolate core, the colloid layer comprises sodium alginate and further comprises at least one of carrageenan, gellan gum, pectin, konjaku flour and xanthan gum. The chocolate not easy to soften provided by the invention has the characteristic that the chocolate not easy to soften in water-containing food is not easy to soften.

The invention relates to the technical field of food, in particular to a red ginseng coconut milk coffee beverage and a preparation method thereof, the red ginseng coconut milk coffee beverage comprises the following raw materials: feed liquid I: coconut milk, sugar, single coconut water, sodium caseinate, gellan gum, potassium chloride, a compound emulsifier, phosphate, an acidity regulator and water; the feed liquid II comprises sugar, instant coffee powder, red ginseng paste, wolfberry concentrated juice, compound gellan gum and water; according to the red ginseng coconut milk coffee beverage prepared by the invention, the problem that red ginseng is bitter and astringent and conflicts with flavor is solved, the taste level and visual impact of the coffee beverage are increased, the refreshing effect of coffee is met, and the product is endowed with the effects of resisting fatigue and enhancing immunity.

The invention discloses a fresh-keeping storage method of plum fruits, which is characterized in that a compact network structure of a shellac-pullulan-gellan gum basic composition effectively obstructs invasion of external microorganisms, and significantly slows down loss of water in the fruits, so that the plump appearance and hardness of the fruits are maintained, and the fruit quality is improved. The siRNA and the AVG wrapped by the lipidosome accurately interfere with the ripening and senescence process in the fruit from the molecular level, the siRNA specifically silences the gene expression of cell wall degradation key enzyme and delays the softening process of the fruit, and the AVG effectively blocks the biosynthesis pathway of ethylene and inhibits the start of an after-ripening signal, so that the ripening and senescence process of the fruit is delayed. The external formed physical film provides a stable microenvironment for internal bioactive molecules, protects the internal bioactive molecules from being degraded and prolongs the action time, and the internal molecular regulation delays the disintegration of cell structures, so that the external film can be attached more enduringly and exerts a barrier function, and the maintenance of the fruit quality is realized under a refrigeration condition.

The present invention relates to a heat-treated beverage containing a fluid gel comprising particles formed from gellan gum and a divalent cation, in particular calcium. The fluid gel beverage is surprisingly thermally stable and maintains suspension properties after heat treatment including UHT (ultra-high temperature) heat treatment.

The application discloses a kind of whipped cream cheese for decorating and preparation method thereof, the whipped cream cheese for decorating of the application includes the following weight parts of raw materials: fresh cream cheese 51-55 parts, egg white powder 1.5-7 parts, milk mineral salt 0.3-1 part, oligomeric isomalt 1-5 parts, fructooligosaccharide 1-5 parts, momordica grosvenori sweet 0.005-0.1 part, inulin 0.2-2 parts, arabinoxylan 0.005-1 part, peach gum 0.005-0.1% part, beta-1,3 glucan 0.1-2 parts, tripartite gum 0.1-5 parts, gellan gum 0.01-2 parts, physical starch 1-3 parts, locust bean gum 0.1-1 part.The preparation method of the application is used for preparing the aforementioned cheese, the application reduces 50-80% of the fat content of conventional cream, and contains certain prebiotic nutritional properties, while increasing the rich cheese aroma compared with conventional cream on the market.By specific formula, the decorating performance of cheese is realized, so that decorating product can maintain more than 1 hour without collapse.

The present application relates to the field of food and food processing, and discloses a syrup adhesive for instant bars and a preparation method and use thereof. Specifically, the syrup adhesive comprises a compound colloid, and the compound colloid comprises pectin, gellan gum, carboxymethyl cellulose or derivatives thereof, and the weight ratio of the pectin, gellan gum and carboxymethyl cellulose or derivatives thereof is 40-60:5-15:5-15. The compound colloid has a low gelling temperature, and the formed gel has thermal reversibility. When the compound colloid is compounded in the syrup adhesive, the rheological properties of the combined adhesive can meet the requirements of instant bar forming, bonding capacity and forming effect, and can also meet the stability of product shelf life, texture and taste, so as to provide excellent structure and texture for the instant bar and greatly improve the seasonal stability of the product.

Compositions useful for tissue resection procedures and related methods of preparing the compositions are discussed. The composition may comprise gellan gum, at least one salt, and water. In some aspects, the composition may be prepared by combining the gellan gum, the salt(s), and the water to form a mixture, heating the mixture, introducing the mixture into a reservoir, and allowing the mixture to cool while inside the reservoir to form a gel. The gel may have a continuous, three-dimensional structure, and may be solid or quasi-solid. The composition may be biocompatible and injectable from the reservoir through a needle coupled to the reservoir to the target site of a patient.

The invention discloses an edible beefsteak scaffold based on vegetable protein and a construction method thereof, and belongs to the fields of tissue engineering, material science, food science and biology. The edible beefsteak scaffold is a 3D printing scaffold based on vegetable protein, combined with gellan gum and sodium alginate, and is a cell culture meat bionic beefsteak composed of a bovine fibroblast and bovine muscle satellite cell co-culture system dynamically constructed by using a rotary culture system. The selected materials are all edible protein and polysaccharide, have high biocompatibility and safety, and are wide in source; the mode of dynamically constructing the bionic beefsteak can effectively reduce the formation of local necrotic areas, and the bionic beefsteak has excellent physical characteristics, has texture structures and flavor characteristics similar to those of real beefsteak, is sterile in surface, and can significantly reduce food sanitation and safety problems. The scheme provided by the invention has remarkable advantages in the aspects of food safety, texture regulation and control, sensory simulation and the like, and provides important technical support for the field of cell culture meat.

To provide a pack cosmetic which provides a thick application feeling when used at high temperatures, spreads smoothly when used at low temperatures, does not cause skin tightness after rinsing, and enhances the skin affinity of a lotion applied after rinsing.SOLUTION: A pack cosmetic comprises the following components (A) to (D): (A) kaolin: 30 to 90 mass%; (B) water-swelling clay mineral: 0.1 to 20 mass%; (C) one or more thickening polysaccharides selected from the group consisting of xanthan gum, guar gum, locust bean gum, tamarind seed gum, and gellan gum: 0.05 to 1 mass%; and (D) acidic mucopolysaccharide: 0.0001 to 0.1 mass%.SELECTED DRAWING: None