10 results about "Micro-encapsulation" patented technology

The invention relates to an efficient energy supply type laboratory mouse feed which comprises the following components in percentage by weight: 20-40% of corn, 10-30% of wheat, 1-5% of wheat middling, 4-10% of soybean meal, 2-8% of fish meal, 2-6% of chicken meal, 1-10% of soybean hull, 1-5% of soybean oil, 1-5% of lard, 0.5-2% of stone powder, 0.5-1.5% of calcium hydrophosphate, 2-5% of premix, 1-5% of MCT microcapsule powder and 0.5-2% of glutamine. The stability of MCT is improved through a microencapsulation method, the activity of glutamine is reserved through an embedding method, the synergistic effect of MCT microcapsule powder and glutamine is utilized, meanwhile, lard oil and fat raw materials are added, high-temperature steam is used for curing materials in the production process, the fragrance of the feed is further improved, the palatability of the feed is jointly improved, the food intake of laboratory mice is not affected, and the production cost is reduced. The utilization efficiency of the feed is improved; the experimental mouse feed can reduce body fat and improve blood lipid level, can effectively prolong exhaustion time of mice, and is suitable for cultivation and maintenance of special experimental animals such as intestinal injury models and immunodeficiency models.

The invention discloses an activity protection preparation method of a co-extruded double-layer structure microorganism-added pet food, and belongs to the related technical field of biological agriculture. A microencapsulated probiotic preparation (the embedding rate is greater than or equal to 96%) is prepared through sodium alginate-chitosan double-layer embedding; the glass transition temperature Tg of the outer-layer material after hardening and tempering is greater than or equal to 80 DEG C; the sandwich layer is formed by mixing microcapsules, a filling agent, grease and an antioxidant at 25-35 DEG C. The temperature of an outer-layer die head is 110-130 DEG C, the temperature of a sandwich layer is 40-60 DEG C, the gap of the die head is 0.2-0.5 mm, the pressure difference is 0.5-1 MPa, the glass-state outer layer is formed through rapid cooling after extrusion, and finally the oxygen barrier film with the OTR smaller than or equal to 3 cc / m < 2 > / 24 h is compounded. Through cooperation of microencapsulation, temperature gradient, glassy state packaging and the barrier film, a full-chain activity protection system is constructed, the survival rate of the probiotics is larger than or equal to 85%, the leakage rate of the sandwich layer is smaller than or equal to 5%, the survival rate is larger than or equal to 70% after the probiotics are stored for 6 months at the temperature of 25 DEG C, and the problems of thermal death of the probiotics, sandwich layer leakage and storage inactivation are solved.

The invention relates to the technical field of disinfection and deodorization, in particular to a slow-release and lasting microencapsulated wall material and application thereof in a disinfectant and a deodorization product, the wall material is a pH-sensitive, temperature-sensitive or water-soluble material and is used for embedding active ingredients; according to the wall material, the modified corn starch is used as a base material, the wall material is endowed with the characteristics of pH sensitivity, temperature sensitivity or water solubility through a modification reaction of maleic anhydride in a specific proportion, at a specific temperature and for a specific time, and the wall material is triggered to be broken / dissolved only in a use scene (such as water encountering when a disinfectant is sprayed and a deodorization product is in contact with a peculiar smell environment and humidity changes); the ineffective consumption of the active ingredients in the storage or non-use stage is avoided, the problems that the traditional active ingredients are high in release speed, short in action duration time, strong in irritation and the like are solved, and the active ingredients are suitable for disinfectants and deodorization products and have practicability and economical efficiency.

The invention belongs to the technical field of starch powder microencapsulation, and discloses an anti-digestion starch microcapsule as well as a preparation method and application thereof. A shell of the microcapsule is an oxidized starch / whey protein isolate / polyphenol composite film, and an inner core of the microcapsule is starch powder; the mass ratio of the inner core to the shell of the microcapsule is 10: (1-4); the composite film shell is formed by compounding whey protein isolate, oxidized starch, polyphenol and a plasticizer according to the mass ratio of 2: (1-4): (0.2-2.4): (0.8-4). According to the invention, a powder coating technology is adopted, so that efficient and uniform coating of starch particles is realized. According to the technology, the uniformity and anti-digestion stability of the coating layer are remarkably improved, the film layer structure and release behavior can be precisely regulated and controlled, and the method has good process amplification and product consistency and is suitable for development and application of low-GI food, functional food, health care products and other products.

This invention relates to the field of preservation films, specifically to a nanocomposite film for apple storage and preservation and its preparation method, comprising a base film and a coating liquid. This invention combines a cellulose nanocrystal base film with an evaporation-induced self-assembled layered ordered structure with a superhydrophobic cellulose ester coating. A cyclodextrin-laccase cascade system is integrated in the base film to specifically capture and enzymatically degrade the pathogenic factors of tiger skin disease. A micro-nano rough structure is constructed in the coating to encapsulate humidity-triggered microencapsulated degradation enzymes. Compared with existing technologies, this invention simultaneously achieves multiple effects on a single film: passive regulation of the respiratory microenvironment, active removal of stored pathogens, surface anti-condensation, and accelerated degradation on demand after disposal. It leaves no harmful residues throughout its entire life cycle and has broad application prospects in the cold chain logistics and green packaging of fresh agricultural products.

The application discloses a traditional Chinese medicine micro-capsule enteric-coated tablet for promoting intestinal mucosa repair and a preparation method thereof, and belongs to the technical field of traditional Chinese medicine pharmacy, and comprises a micro-capsule tablet core and an enteric-coated layer coated on the outer surface of the micro-capsule tablet core, wherein the micro-capsule tablet core comprises microcapsules with white-bark tree gum liquid as a wall material and Chinese herbal medicine extract as a core material, the Chinese herbal medicine extract comprises water-soluble inclusion compounds prepared by extracting aloe emodin, Danshen, processed ginger, Sanqi and spina date seed and then being wrapped by beta-cyclodextrin, and active polysaccharide retentate prepared by extracting Herba Baphicacanthis, fried coix seed, white peony root, licorice, Fructus Mume, Astragalus and dendrobium by complex enzymolysis and then being separated by ultrafiltration, and the white-bark tree gum liquid is prepared by swelling white-bark tree in cold water and then being treated by high-pressure homogenization; the micro-capsule is adsorbed on an intestinal ulcer surface to form a physical isolation barrier, and the ultrafiltration detoxification and cyclodextrin wrapping process improves the utilization degree and safety of active ingredients at a target site.

The invention belongs to the field of functional materials, and particularly relates to a microencapsulated resistant dextrin lanolin material as well as a preparation method and application thereof. The preparation method comprises the following steps: dropwise adding molten lanolin into a resistant dextrin solution, adding an emulsifier, stirring, carrying out ultrasonic treatment, and freeze-drying to obtain the microencapsulated resistant dextrin lanolin material. According to the invention, a micro-capsule structure with resistant dextrin as a wall material and wool fat as a core material is constructed by combining ultrasonic-assisted emulsification and freeze-drying technologies. According to the structure, the film-forming property and the water solubility of the resistant dextrin and the oil solubility of the wool fat are ingeniously utilized, and effective wrapping and fixing of an oil phase and a water phase are achieved.

The invention discloses a preparation process of micrococcus oil microcapsule powder, and belongs to the technical field of microcapsule preparation. In order to overcome the technical defects that the nannochloropsis sp. Oil is dark green semi-solid ointment at normal temperature and is difficult to directly emulsify and embed, the process realizes efficient microencapsulation of the nannochloropsis sp. Oil through specific oil phase dilution and blending, wall material selection and process parameter optimization. The preparation method comprises the following steps: diluting micrococcus oil with flaxseed oil or DHA algal oil according to a specific ratio to prepare an oil phase core material; whey protein isolate, sodium caseinate and the like are used as wall materials, and vitamin C is used as an antioxidant to prepare a water-phase wall material; the product is prepared through the working procedures of mixing, high-speed shearing, high-pressure homogenizing, spray drying, mixing, sieving, packaging and the like. The prepared microcapsule powder is high in oil carrying rate, high in embedding rate, good in stability, free of peroxide value detection, free of additional emulsifier and suitable for industrial production, the application scene of EPA in the fields of food and medicine is expanded, and the EPA microcapsule powder can be particularly used for middle-aged and elderly health products, milk powder and other nutrition fortified food.

The invention relates to the technical field of pharmaceutical preparations, and particularly discloses a microencapsulated tilmicosin premix and a preparation method thereof, and the microencapsulated tilmicosin premix comprises the following raw materials: tilmicosin, a composite capsule material, an emulsifier, a stabilizer, a suspending aid and livestock and poultry feed acceptable auxiliary materials. The preparation method of the microencapsulated tilmicosin premix comprises the following steps: step 1, adding a composite capsule material into deionized water, and stirring and dispersing to obtain a capsule material solution; step 2, adding tilmicosin, an emulsifier and a stabilizer into the capsule material solution, and homogenizing to obtain a medicine dispersion liquid; step 3, performing spray drying on the medicine dispersion liquid, and sieving after drying to obtain microcapsule particles; and step 4, adding the microcapsule particles, a suspending aid and livestock and poultry feed acceptable auxiliary materials into a mixing machine, and mixing to obtain the microencapsulated tilmicosin premix. The prepared microencapsulated tilmicosin premix is high in encapsulation efficiency, excellent in targeting performance and high in stability, and adapts to livestock and poultry feed application scenes.

The present invention relates to the technical field of fire extinguishing materials. Disclosed are an active fire extinguishing microcapsule, a preparation method, the use, an ultraviolet-curable resin board and a preparation method therefor. The microcapsule has a core-shell structure, in which a core material is perfluoro (2-methyl-3-pentanone) (PFMP) that, as an efficient fire extinguishing agent, is adapted to suppress the heat rise rate of ultraviolet-curable polymers in thermal runaway and fire environments, and a shell layer is a polymer wall material constituted by gelatin, has a certain thickness, and can rupture at a preset temperature. By means of simple agglomeration, PFMP is microencapsulated as the core material to prepare a microcapsule having a specific particle size distribution, which rapidly releases a fire extinguishing agent under high temperature conditions, effectively suppressing flames.