17results about How to "High embedding rate" patented technology

The utility model discloses a microcapsule spray dryer for producing emulsified powder essence, which realizes vertical circulating stirring of raw materials in a material storage tank through the rotary motion of a spiral conveying shaft in a material guide barrel; the spiral conveying shaft pumps the raw materials located on the lower portion of the material storage tank upwards along the material guide barrel, then the raw materials flow back through the upper end of the material guide barrel, and circular flowing of the raw materials in the vertical space is achieved. Therefore, the phenomena of local deposition and layering of the raw materials in the storage tank are avoided. Especially for emulsion with large density difference between the wall material and the core material, layering phenomena such as wall material sedimentation and core material oil phase floating are effectively prevented, the uniformity and the stability of the raw materials in the storage process are remarkably improved, and then the embedding rate and the structural integrity of the microcapsule are improved.

The invention discloses essential oil microcapsule powder with high oil loading capacity and a preparation method thereof, and belongs to the technical field of microcapsules, the preparation method comprises the following steps: preparing a gelatin aqueous solution, preparing an Arabic gum aqueous solution, preparing an Arabic gum-starch aqueous solution, preparing a chitosan-tannic acid aqueous solution, preparing an emulsion, and performing primary crosslinking. Performing secondary crosslinking; the essential oil microcapsule powder prepared by the invention not only has high oil loading capacity and low surface oil content, but also has excellent slow release performance, solubility, long-term controlled release performance and flowability, and is uniform in particle size distribution.

The invention belongs to the technical field of microorganisms, and particularly relates to application of bifidobacterium animalis subsp. Lactis in improvement of osteoporosis. The bifidobacterium animalis subsp. Lactis BL-136 provided by the invention is preserved in Guangdong Microbial Culture Collection Center, the preservation number is GDMCC No: 67831, and verification proves that the strain has excellent capability of inhibiting osteoclast differentiation and has obvious application advantages in the aspect of relieving osteoporosis. The microgel preparation prepared from the strain can play an excellent role in relieving the osteoporosis, and the curative effect on the osteoporosis is remarkably improved. Therefore, the invention proves the curative effect of the bifidobacterium animalis subsp. Lactis BL-136 and the microgel preparation thereof in the aspect of relieving the osteoporosis, and scientific thinking and technical support can be provided for the development of medicines for treating the osteoporosis.

The application discloses a salicylic acid-cyclodextrin-amino acid ternary inclusion compound and a preparation method thereof. The salicylic acid-cyclodextrin-amino acid ternary inclusion compound is formed by non-covalent bond interaction of salicylic acid, amino acid and cyclodextrin derivatives, wherein the cyclodextrin derivative is a cross-linked beta-cyclodextrin polymer, wherein the salicylic acid molecules are included in the cavity of the cross-linked beta-cyclodextrin polymer, and meanwhile, the guanidino group or carboxyl group of the amino acid side chain interacts with the hydroxyl group outside the cross-linked beta-cyclodextrin polymer or the exposed part of the salicylic acid molecules after inclusion. The application uses the cross-linked beta-cyclodextrin polymer and introduces arginine as a synergist to construct a salicylic acid-cross-linked beta-cyclodextrin polymer-arginine ternary inclusion compound, and through charge neutralization and hydrogen bond network synergistic effect, the inclusion efficiency is significantly improved, and the water solubility of salicylic acid is improved.

This invention discloses an apple pomace ESP-Zein-lutein composite nanoparticle delivery system and its preparation method, belonging to the field of functional food carrier and bioactive substance delivery technology. ESP is purified from apple pomace through hot water extraction, TCA deproteinization, and dialysis decolorization. Combined with antisolvent precipitation and electrostatic adsorption technology, composite nanoparticles with uniform particle size and high stability are prepared. The optimized ratio is Zein:ESP:lutein = 1:0.4:0.08. In this system, Zein and lutein form a hydrophobic core, and ESP forms a shell through hydrogen bonding and electrostatic interactions. The lutein encapsulation rate reaches 90.5%, significantly higher than the 54.7% of the single Zein system, making it suitable for targeted delivery of functional food additives, antioxidants, and eye health-related products.

This invention, entitled "A Low-Loss β-Carotene Microcapsule and Its Preparation Method," belongs to the field of microcapsule preparation technology. The technical problem to be solved is that during high-temperature melting, particulate all-trans β-carotene transforms into a molecular state, but this process generates a large number of cis isomers and results in significant content loss. Furthermore, the particle size and dispersibility of the particulate β-carotene prepared by grinding are still unsatisfactory, leading to low bioavailability and poor application effects. The key point of this technical solution is to prepare high all-trans molecular β-carotene microcapsules through a specific combination of treatments. This reduces content loss and cis-trans isomerization during the transformation of β-carotene from particulate to molecular state, thereby significantly improving the bioavailability of β-carotene microcapsules. Moreover, the preparation process is simple, cost-controllable, and suitable for large-scale industrial production.

The invention specifically discloses a myofibrillar protein-sunflower seed oil-high M type alginic acid ternary composite probiotic microcapsule and a preparation method thereof, and belongs to the technical field of food. Myofibrillar protein and sodium alginate are used as inner wall materials, gelatin and sunflower seed oil are used as outer wall materials, and lactobacillus acidophilus is embedded in a double-layer mode through electrostatic interaction. The specific preparation method comprises the following steps: mixing a bacterial suspension with the composite wall material, dropwise adding the mixture into pure water, and carrying out ultrasonic curing, dewatering and vacuum freeze drying to obtain the microcapsule. The microcapsule prepared by the invention has a good embedding rate, can play a role in protection and slow release in a simulated digestion process, improves the thermal stability and storage stability of probiotics, and has a wide application prospect.

The application discloses a preparation method and application of cassava starch-beta-cyclodextrin nanoparticles embedding gamma-aminobutyric acid, and the preparation method comprises the following steps: step one, preparing nanoparticles by using a cassava starch suspension and beta-cyclodextrin, and then preparing a solution; step two, preparing a gamma-aminobutyric acid solution; and mixing the prepared gamma-aminobutyric acid solution with the nanoparticle solution in step one. The gamma-aminobutyric acid cassava starch-beta-cyclodextrin nanoparticles can improve the stability of gamma-aminobutyric acid, further improve the effect of gamma-aminobutyric acid on sleep quality, and has practical application value in medical production.

This invention provides a method for preparing olivine-type sodium iron phosphate, olivine-type sodium iron phosphate, and a sodium-ion battery, specifically relating to the field of sodium-ion secondary battery technology. The preparation method involves dissolving sodium propionate and sodium salt, adding olivine-type iron phosphate, and grinding to obtain a precursor slurry. The precursor slurry is then spray-dried and sintered at 200-400°C to obtain the olivine-type sodium iron phosphate. In this preparation method, sodium propionate not only serves as a sodium source, but propionate ions also promote the kinetics of the solid-phase reaction, resulting in purer olivine-type sodium iron phosphate and further improved capacity. Furthermore, to reduce the high ineffective carbon content caused by the difficulty in propionate decomposition at low temperatures, an appropriate metal oxide precursor is introduced to facilitate the effective decomposition of carbonaceous species during pyrolysis, providing a feasible path for the low-cost, large-scale preparation of high-performance NaFePO4 materials.

The present application relates to the field of probiotic microcapsules, in particular to a bifidobacterium longum double-layer microcapsule, a preparation method and application thereof. The present application is a bifidobacterium longum double-layer microcapsule prepared by extrusion and electrostatic deposition with pectin as a core layer and chitosan and its derivatives as an outer layer wall material. The method can achieve multi-layer encapsulation under mild conditions, and the preparation conditions are simple and mild, and easy to realize large-scale production. The obtained bifidobacterium longum double-layer microcapsule can not only effectively improve its tolerance stability, but also realize targeted delivery and release to colon cells, thereby realizing better probiotic function and providing a new idea for the development of probiotic functional products. At the same time, the bifidobacterium longum double-layer microcapsule of the present application applied in different types of fruit juice reduces the acidification of the fruit juice, reduces the influence of the matrix on the bifidobacterium longum, improves the activity of the bifidobacterium longum, significantly improves the transparency of the fruit juice, and does not affect the original sensory characteristics of the fruit juice.

The invention relates to lycopene water dispersible powder and a preparation method thereof, and belongs to the technical field of food additives. The method comprises the following steps: esterifying octadecyl alcohol and food-grade phosphoric acid, and reacting with edible gelatin to prepare modified edible gelatin; then lycopene dry powder is dispersed in ethyl acetate, a compound emulsifier, modified edible gelatin and 1, 3-propylene glycol are added, and preliminary embedding is achieved through high-speed shearing and ultrasonic nanocrystallization treatment; and step-by-step vacuum drying, secondary embedding with an excipient, freezing, crushing and screening are carried out, such that the water dispersible powder with a particle size of 0.1-0.2 mm is prepared. Through the hydrophobic binding and charge repulsion effects of the modified gelatin and the synergistic process of ultrasonic nanocrystallization and double embedding, the technical problems that traditional lycopene is poor in water dispersibility, prone to layering, high in solvent residue and insufficient in stability are solved. The prepared product is suitable for healthy food systems such as water-based food, beverage and the like, and has the advantages of convenience in storage and transportation and high bioavailability.

The invention discloses a slow-release carbon source based on wet garbage and a preparation method thereof, and relates to the technical field of sewage treatment. The preparation method of the slow-release carbon source comprises the following steps: removing impurities from wet garbage, adding deionized water, crushing, homogenizing, carrying out hydrolytic acidification to separate out a hydrolytic acidification liquid, carrying out flocculation and deslagging, separating out a liquid-phase component, and sequentially adding sodium citrate and citric acid to obtain a liquid-phase carbon source; the preparation method comprises the following steps: putting polyvinyl alcohol and sodium alginate into deionized water, dissolving, cooling, adding a liquid-phase carbon source, stirring, dropwise adding into a calcium chloride-saturated boric acid solution, and centrifugally cleaning to obtain embedded particles; polyvinyl alcohol and sodium alginate are placed in deionized water and cooled after being dissolved, water-based macromolecules and embedded particles are added, the mixture is poured into a copper cylinder mold after being stirred to be uniform, bidirectional freezing is conducted, natural melting is conducted after freezing, natural melting demolding is conducted after freezing again, and a slow-release carbon source is obtained; the slow-release carbon source has excellent slow-release effect and denitrification capability.

The application discloses a kind of high-stability pentatomidae oil microcapsules and its preparation method and application, belong to microcapsule technical field.The microcapsule uses pentatomidae oil as core material, maltodextrin, arabic gum and gelatin as wall material, and the mass ratio of core material and wall material is 1:2~1:4;Preparation method includes that maltodextrin, arabic gum and gelatin are added to water and heated to be dissolved to obtain wall material solution, pentatomidae oil is added and emulsified by high shear to obtain emulsion, then by spray drying or freeze drying treatment, pentatomidae oil microcapsule is obtained.The application realizes the efficient embedding of pentatomidae oil by optimizing the composition of wall material and core wall ratio, and the embedding rate can reach more than 95%, the obtained microcapsule particle size is uniform, oxidation stability is significantly improved, and can effectively mask the fishy smell of pentatomidae oil itself.

This invention discloses a salmon protamine preservative, its preparation process, and its application, relating to the field of food preservation technology. The process includes: preparing a salmon protamine solution with a mass concentration of 2-5%; preparing a sodium alginate solution with a mass concentration of 1-3%; mixing the salmon protamine solution and sodium alginate solution at a volume ratio of 1:1 to 1:3 to obtain a mixed solution; adding the mixed solution dropwise to a calcium chloride solution with a mass concentration of 2-4% to form gel microspheres; solidifying the microspheres in the calcium chloride solution and filtering to obtain the gel microspheres; immersing the washed gel microspheres in a chitosan solution with a mass concentration of 0.5-1.5%; and freeze-drying the obtained gel microspheres to obtain the final product. This invention achieves efficient encapsulation and long-term sustained release of salmon protamine, enhances the structural stability of microspheres in acidic environments, prevents premature leakage of active ingredients, exhibits broad-spectrum antibacterial activity, extends food shelf life, and is characterized by a mild, environmentally friendly process that facilitates storage and transportation.

The present application belongs to the technical field of household textiles, and particularly relates to a preparation method of cool microcapsules, cool polyester fiber fabric and a production method thereof. The preparation method of the cool microcapsules comprises the following steps: adding polymethyl methacrylate and an emulsifier into water to obtain a dispersion liquid; adding xylitol into the dispersion liquid to obtain a suspension liquid; and performing spray drying on the suspension liquid to obtain the cool microcapsules. In the present application, the xylitol is prepared into microcapsules, so that the technical problem that the xylitol is easily dissolved in water and the washability of the fabric is poor (i.e. the cool function rapidly decreases after washing) in the prior art is solved.

This invention relates to the field of microencapsulation powder preparation technology, and particularly to a royal jelly acid microencapsulation powder with a low polydispersity index, its preparation method, and its application. The preparation method of this royal jelly acid microencapsulation powder includes the following steps: using royal jelly acid melt as phase A; using a mixture comprising octenyl succinic anhydride modified starch and separated whey protein powder as phase B; adding phase A to phase B to obtain phase C; using a mixture comprising cellulose, gum arabic, and solid corn syrup as phase D; adding phase C to phase D, followed by spray drying to obtain royal jelly acid microencapsulation powder. The particle size distribution curve of this royal jelly acid microencapsulation powder is unimodal with a highly concentrated particle size distribution, low polydispersity index, and uniform particle size distribution. It has the advantages of high encapsulation efficiency, excellent storage stability, and high water solubility.

The invention discloses a preparation method and application of a lignin-carbohydrate complex based gel system. Comprising the following steps: carrying out enzyme modification on a lignin-carbohydrate complex; after enzyme modification is finished, centrifugally collecting precipitate, washing the precipitate, and freeze-drying; dissolving the freeze-dried precipitate in a dichloromethane-ethanol mixed solution, stirring, centrifugally collecting the precipitate, and freeze-drying the precipitate to obtain modified LCC; dispersing the modified LCC in an oil phase; adding water into the oil phase to obtain an LCC emulsion; and adding a gelling agent into the LCC emulsion to obtain the lignin-carbohydrate complex based gel system. The lignin-carbohydrate complex based gel system disclosed by the invention has wide application prospects in the aspects of preparing health foods and medicines for improving the bioavailability of nutrients and realizing targeted release of intestinal tracts, developing healthy grease products, improving the functional activity of bioactive substances and the like.