89 results about "Lutein esters" patented technology

The invention relates to the technical field of liposomes, in particular to a lutein ester-fumaric acid composite liposome with high bioavailability as well as a preparation method and application of the lutein ester-fumaric acid composite liposome. The preparation method of the lutein ester-fumaric acid composite liposome comprises the following steps: mixing lutein ester with oil to obtain a phase A; adding phospholipid, cholesterol and vitamin E into the phase A, and then carrying out ultrasonic dispersion treatment to obtain a phase B; fumaric acid and water are added into the phase B, and then high-pressure homogenization treatment, high-pressure microjet treatment and freeze-drying treatment are sequentially performed to obtain the lutein ester-fumaric acid composite liposome. The lutein ester-fumaric acid composite liposome with high bioavailability has the advantages of small average particle size, high Zeta potential, high encapsulation efficiency, high bioavailability, high solubility and excellent stability, and has potential application prospects in preparation of foods, medicines or health care products with eye protection functions.

The present disclosure provides a method for preparing lutein ester, by providing a raw material selected from marigold flowers or marigold meal; subjecting the raw material to extraction using ethanol followed by acetone; and concentrating to obtain an extract which may then be crystallized to obtain lutein ester crystal of high purity. Further, the present disclosure provides a method for preparing lutein ester, by providing a raw material selected from marigold flowers or marigold meal; subjecting the raw material to extraction using isopropanol; and concentrating to obtain an extract which may then be crystallized to obtain lutein ester crystal of high purity.

The invention relates to the technical field of functional food preparation, and discloses solid soft sweets capable of remarkably relieving asthenopia and a preparation method of the solid soft sweets, and every 100 parts by mass of the soft sweets comprise the following components: 5.8-6.2 parts of lutein ester microcapsules, the wall material of which is starch octenyl succinate with the substitution degree of 0.02-0.04; the emulsifier is lecithin of which the purity is greater than or equal to 90%, and the particle size lt of the emulsifier is 1t; the particle size is 200 nm; 75 to 85 parts of blueberry anthocyanin-VC compound freeze-dried powder; 18 to 22 parts of lycium barbarum polysaccharide; 45 to 55 parts of galactooligosaccharide; 8 to 12 parts of medium chain triglyceride; and a colloid base material. Through collaborative design of a hydrophobic modified wall material and a gradient mixing process, a multi-level protection network of active ingredients is constructed, so that the retention rate of fat-soluble nutrients in the processing and storage period is increased to 90% or above.

The invention provides a multilayer lutein ester liposome as well as a preparation method and application thereof, and belongs to the field of food processing. The multi-layer lutein ester liposome is prepared from the following raw materials: 30 to 50 parts of lutein ester, 40 to 60 parts of soybean phosphatidylcholine, 5 to 20 parts of cholesterol, 10 to 25 parts of starch sodium octenylsuccinate, 20 to 40 parts of trehalose, 15 to 30 parts of mannitol, 4 to 10 parts of phosphatidyl glycerol, 1 to 2 parts of vitamin E acetate and 1 to 2 parts of ascorbyl palmitate. According to the present invention, through the specific food-grade raw material composition and the accurate ratio relationship, the comprehensive delivery system is constructed for the highly hydrophobic and unstable lutein ester, and the system synchronously achieves the high encapsulation efficiency, the excellent stability, the good water dispersibility and the slow release function.

The invention discloses a purification method of low-viscosity and high-melting-point lutein ester, and belongs to the technical field of lutein ester purification. The purification method comprises the following steps: carrying out enzymolysis treatment on lutein ester extract by using a complex enzyme aqueous solution to obtain an enzymolysis reaction solution; after the enzymatic hydrolysis reaction liquid is subjected to standing layering, taking supernatant liquid, mixing the supernatant liquid with an alcohol solution, adding basic salt, and carrying out a neutralization reaction to obtain a neutralization reaction liquid; and cooling, crystallizing and filtering the neutralization reaction liquid, taking a crystal solid, repeatedly crystallizing twice by using an alcoholic solution, and drying to obtain a purified finished product of the lutein ester. According to the method disclosed by the invention, sticky and low-melting-point vegetable fat components in the lutein ester extract can be greatly removed, the viscosity of a lutein ester product can be effectively reduced, the properties of the product can be improved, the melting point of the product can be increased, and the problems of difficulty in drying, difficulty in crushing and the like are solved, so that the quality of the lutein ester product is improved, and related application of the lutein ester product is promoted.

1. The name of the design product: packing box (blue forget blueberry lutein ester soft candy). 2. The use of the design product: the design product is used for product packaging. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that best indicates the design points: perspective view.

The invention discloses a xanthophyll eye-protecting composition and application thereof, and belongs to the field of traditional Chinese medicine technology and food. The eye protection composition is prepared from the following raw materials in parts by weight: 1 to 50 parts of lutein or lutein ester, 1 to 10 parts of zeaxanthin, 1 to 650 parts of anthocyanin, 1 to 5 parts of docosahexaenoic acid, 1 to 40 parts of radix puerariae, 1 to 40 parts of fructus lycii peptide, 1 to 10 parts of vitamin C and 1 to 15 parts of flos inulae nervosae. According to the composition, the raw materials with the eye protection effect are compounded with the specific new food raw materials including the inula nervosa, the bead peptide powder and the chimonanthus salicifolius, blue light damage of human retinal pigment epithelial cells ARPE-19 and inflammatory response caused by the blue light damage can be effectively relieved, and the composition can have the better eye protection effect.

A mixing device for safety production of vitamin C products relates to the technical field of stirring devices and comprises a mixing tank, an inlet pipe communicated with an inner cavity of the mixing tank is rotatably arranged at the top of the mixing tank, a feeding cylinder is rotatably inserted into the upper end of the inlet pipe, and a flap valve is rotatably arranged in the feeding cylinder; the lower end of the inlet pipe is fixedly connected with a base plate, a supporting ring is coaxially arranged below the base plate, a plurality of material distributing rods are fixedly connected between the outer wall of the base plate and the upper surface of the supporting ring in a surrounding mode, a material falling channel is formed through the area between the adjacent material distributing rods, and the width of the material falling channel is gradually increased from the center to the outer side. According to the utility model, the problems in the prior art that in the mixing process of lutein ester and vitamin C, under the action of a stirring structure, powder is easy to raise and diffuse in the surrounding environment, so that the surrounding environment is influenced, and potential safety hazards are caused to operators in the working environment are solved.

The invention belongs to the field of biological medicine, and particularly relates to a traditional Chinese medicine composition for treating xerophthalmia and relieving asthenopia and a preparation method thereof, the traditional Chinese medicine composition comprises mulberry leaf, chrysanthemum, cassia seed, wolfberry, rehmannia, dogwood, moutan bark, Chinese yam, lily, poria cocos, rhizoma alismatis, dendrobe, Chinese angelica, marigold, blueberry, lycium ruthenicum, raspberry, lutein ester and bear gall gold powder. Through the scheme, the traditional Chinese medicine composition provided by the invention can effectively treat clinical symptoms of xerophthalmia, increase tear secretion, improve fundus microcirculation and increase ciliary muscle blood flow, thereby eliminating asthenopia symptoms and improving eyesight.

The present invention provides a highly active composition for resisting blue light damage and a preparation method thereof. The composition includes lutein ester and zeaxanthin; the mass ratio of the lutein ester to zeaxanthin is 1:(0.8-1.5); the lutein ester is added in the form of lutein ester microcapsule powder; and the raw materials of the lutein ester microcapsule powder do not contain other oil components except lutein ester crystals. The present invention combines lutein ester and zeaxanthin to have good antioxidant and blue light damage resistance effects; the raw material lutein ester microcapsule powder used in the present invention solves the instability problem caused by high-temperature melting of lutein ester during the preparation process, effectively avoiding the problem of high-temperature sterilization instability or floating precipitation of the lutein ester microcapsule powder during application.

The invention relates to the technical field of food, and particularly discloses DHA algal oil PS lutein ester gel candies capable of promoting brain development and improving eyesight and a preparation method thereof.The DHA algal oil PS lutein ester gel candies capable of promoting brain development and improving eyesight are of a three-layer sandwich structure, the slow-release capsule comprises an outer-layer rubber sheet, a middle slow-release layer and an inner core active layer from outside to inside, the outer-layer rubber skin is prepared from gelatin, glycerol, sorbitol liquid, pectin, stevioside, edible essence and water; the middle slow-release layer comprises beeswax, medium chain triglyceride and phospholipid; the inner core active layer is prepared from DHA algal oil, phosphatidylserine, lutein ester oil, (3R, 3 'S)-dihydroxy-beta-carotene oil, starch acetate, a blueberry powder solid beverage and citric acid. The DHA algal oil phosphatidylserine lutein ester gel candy can promote brain development, improve learning and memory, improve concentration, prevent blue light, prevent myopia, improve myopia and relieve asthenopia.

This invention relates to a blueberry lutein ester hawthorn cookie with a protective effect on vision and its preparation method. The raw material composition is as follows: 100-180 parts flour, 20-80 parts palm oil, 20-80 parts maltitol, 1-30 parts roasted wheat bran, 1-15 parts soybean dietary fiber, 1-10 parts polydextrose, 1-20 parts blueberry powder, 1-20 parts hawthorn powder, 1-20 parts leavening agent, 0.1-6 parts flavoring agent, 0.1-3 parts disodium dihydrogen pyrophosphate, 0.1-3 parts phospholipids, 1-5 parts lutein ester, 0.001-1 part water-soluble β-carotene, 0.1-4 parts blueberry flavoring, and 2-50 parts water. This cookie uses lutein ester, blueberry powder, and water-soluble β-carotene in a scientifically formulated ratio. After being absorbed by the human body, these three ingredients work synergistically to relieve eye fatigue and greatly enhance the protective effect on vision. It also has the advantages of good appearance and color, low calories, crispy and delicious taste, while being low in sugar, relieving eye fatigue, protecting the eyes, rich in dietary fiber, strengthening the spleen and aiding digestion, and maintaining normal intestinal function.

The invention discloses a processing method of lutein and lutein ester soft sweets with an optimized oil-ester ratio, which uses a material mixing device comprising a main body unit, a material mixing assembly and a cooling unit, the main body unit comprises a stirring tank; the mixing unit comprises a vertical shaft, and a plurality of stirring shafts are fixedly connected to the vertical shaft; the cooling unit comprises a heat conduction rod, a heat dissipation cavity, a vertical channel and a first spiral channel are formed in the vertical shaft, a second spiral channel is formed in the stirring shaft, a second one-way valve is arranged at the joint of the first spiral channel and the heat dissipation cavity, and a suction assembly is arranged in the heat dissipation cavity. A movable assembly is arranged in the space, above the suction assembly, in the heat dissipation cavity, and a heat dissipation assembly is arranged on the heat conduction rod. Heat generated during stirring of the stirring shaft is absorbed through the cooling liquid, and the heat absorbed by the cooling liquid is conducted outwards through the heat conduction rods, so that the influence of local high temperature generated by the stirring rods on lutein ester is avoided.

The invention provides a method for preparing lutein ester microcapsule powder based on OSA modified starch, which comprises the following operations: core material preparation: mixing lutein ester and sunflower seed oil, and stirring at 60-80 DEG C to obtain a core material; wall material preparation: weighing OSA modified starch, dispersing the OSA modified starch in water, adding an emulsifier, and stirring until the OSA modified starch is completely hydrated to obtain a wall material solution; embedding: under the temperature condition of 60-80 DEG C, dropwise adding the core material into the continuously stirred wall material solution, stirring and mixing, and then shearing and emulsifying for 8-15 minutes to obtain a crude emulsion; the crude emulsion is homogenized under the condition of 50 to 70 Mpa; and drying: carrying out spray drying or vacuum freeze drying on the emulsion. According to the lutein ester microcapsule powder prepared by the method disclosed by the invention, the P-M embedding rate is 91.71%, the loading rate is 9.96%, and the moisture content is 3.36%. The lutein ester capsule is good in powder state, excellent in solubility and compact in capsule wall structure, and the stability, dispersity and machinability of lutein ester are remarkably improved.

This invention provides a green and efficient method for extracting and purifying lutein from marigolds, belonging to the field of extraction, separation, and purification of fat-soluble active ingredients. The invention involves pulverizing fresh or dried marigold flowers and then using an aqueous solution of dodecyl dimethyl betaine for green extraction and purification of lutein. Based on the characteristic that dodecyl dimethyl betaine forms supramolecular interfacial charges with lutein in aqueous solution, and utilizing the fact that low temperatures significantly affect the stability and morphology of micelles, the critical micelle concentration of dodecyl dimethyl betaine decreases with decreasing temperature, and the solubility of lutein in the mixed system further decreases, lutein is precipitated and aggregated. The lutein-bound state, such as lutein esters, is then saponified using an alcohol-alkali method, followed by ethanol recrystallization to obtain high-purity lutein. This new green and efficient method for extracting and purifying lutein from marigolds provides high extraction rates and high purity. The method not only improves the extraction efficiency of lutein but also has significant implications for the safe industrial production of lutein.

The application discloses a composite eye-care patch composition containing Hainan coconut extract and tropical plant extract and a preparation method thereof, and belongs to the field of eye-care daily chemicals. The product adopts a water-oil dual-phase isolation structure, the water phase contains Hainan coconut water extract, noni fruit polysaccharide, seaweed polysaccharide and various plant extracts; and the oil phase contains active components such as anthocyanins, lutein ester, astaxanthin and coconut oil. The application adopts a double-cavity isolation and instant fusion technology, solves the problems of easy oxidation of active components, formula homogenization and weak penetration, and can relieve eye fatigue, fade dark circles and repair skin around eyes. The product relies on a technical barrier constructed by Hainan characteristic raw materials, has a reasonable formula and simple process, and is suitable for large-scale production and market promotion.

The invention discloses a lutein ester purification method, and belongs to the technical field of lutein ester purification, the purification method comprises the following steps: S1, lutein ester is roughly dissolved in an organic solvent to prepare a crude product solution; s2, loading the crude product solution to a chromatographic column containing a composite adsorbent, carrying out gradient elution, and collecting an eluent; s3, concentrating the eluent to obtain concentrated slurry, adding an anti-solvent for crystallization, filtering, washing and drying; the composite adsorbent in the step S2 is composed of silica gel and macroporous adsorption resin; in the step S2, gradient elution is performed by sequentially adopting a first eluent and a second eluent, and the first eluent is petroleum ether and ethyl acetate in a volume ratio of (10-20): 1; the second eluent is petroleum ether and ethyl acetate in a volume ratio of (2-5): 1. The purity of the lutein ester is finally improved to 99% or above, and the yield is up to 85% or above.

This utility model relates to the field of gummy candy production technology and discloses a casting device for producing goji berry lutein ester gummy candies. It includes a material storage tank, an exhaust pipe fixedly installed at the upper end of the material storage tank, an exhaust valve disc fixedly installed at the inner side of the exhaust pipe, the exhaust valve disc having an annular cross-section, a sealing disc second at the upper end of the exhaust valve disc, a limiting rod second fixedly installed at the upper end of the sealing disc second, the upper end of the limiting rod second extending to the outside of the exhaust pipe, a gas conveying pipe second fixedly installed at the upper end of the exhaust pipe, and a gas storage cylinder fixedly installed at one end of the gas conveying pipe second. The technical effect is to automatically adjust the gas pressure inside the storage tank, avoiding casting pressure fluctuations caused by a drop in syrup level, ensuring consistent weight for each gummy candy, eliminating the impact of pressure fluctuations on the storage tank seals, reducing seal wear and leakage risks, and maintaining a slightly positive pressure environment inside the tank by injecting inert gas into the sealed cavity.

Carotenoid compositions are described for management, treatment, and / or prevention of stress by reducing cortisol levels and / or improving distribution and / or density of macular pigment and thus improving overall health status. More particularly, a subject in need thereof for the method has disturbed macular pigment optical density or increased levels of cortisol as markers of psychological and physiological stress. Methods are also described of administering macular carotenoid compositions in daily doses of at least or about 0.005 mg / kg body weight of lutein, and at least or about 0.001 mg / kg body weight of meso-zeaxanthin and zeaxanthin isomer along with at least one food grade excipient and evaluating overall health status. The composition may be derived from plant extract containing xanthophylls and / or xanthophylls esters. The composition also reduces cortisol levels in the blood and relieves physiological stress, thus improving overall health status of a subject in need thereof.

1. The name of the design product: packaging box and bag set (lutein ester of notland leaf blueberry juice drink compound fruit and vegetable juice drink). 2. The use of the design product: set 1 for packaging box, set 2 for packaging bag. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that best indicates the design points: front view of set 1.

The invention relates to the technical field of health-care tea, in particular to health-care tea for nourishing and protecting eyes and a preparation process, the health-care tea comprises the following raw materials in parts by weight: 15-25 parts of chrysanthemum, 8-15 parts of Chinese wolfberry, 8-12 parts of cassia seed, 5-8 parts of dried blueberry, 0.2-0.8 part of lutein ester, 3-6 parts of green tea extract, 2-4 parts of rock sugar, 0.003-0.008 part of vitamin A and 0.2-0.4 part of vitamin C. The preparation method comprises the following steps: preparing the raw materials; chrysanthemum is used for relieving asthenopia, fructus lycii is used for protecting retina, semen cassiae is used for improving eye circulation, blueberries are used for enhancing night vision, lutein ester is used for filtering blue light, vitamin A / C is used for resisting oxidation, a multi-layer eye protection system is formed, vitamin A promotes lutein ester absorption, and vitamin C is used for enhancing the stability of anthocyanin.

The invention belongs to the field of food processing and nutrition fortification, and particularly relates to lutein ester fortified edible oil and a preparation method thereof. The preparation method comprises the following steps: (1) premixing lutein ester with a part of edible vegetable oil to obtain a premix; and (2) adding the premix into the residual edible vegetable oil, and uniformly stirring to obtain the lutein ester enhanced edible oil. The concentration of the lutein ester in the final product is 350 to 500 mg / kg (preferably 400 mg / kg). The method ensures that the product is uniform and stable, nutrition is well preserved, and a user can conveniently supplement lutein through daily cooking.

This invention discloses a method for extracting and purifying lutein extract based on a composite solvent system, specifically relating to the field of natural product separation and extraction. The method involves mixing a crude extract containing lutein esters from marigold with a first composite solvent system. This allows lutein esters, oils, and resinous impurities in the crude extract to enter the liquid phase. Waxes are then precipitated by lowering the system temperature, resulting in a dispersion system containing the precipitated waxes. The first composite solvent system consists of a first organic solvent and a second organic solvent. By first introducing lutein esters, oils, and resinous impurities into the liquid phase in the first composite solvent system, then allowing the waxes to precipitate and separate, and subsequently transferring the lutein esters to a lutein ester-enriched phase, lutein can be separated from major accompanying impurities before entering the saponification and purification processes. This relatively reduces the burden on subsequent processes and alleviates issues such as slow stratification, increased entrainment, and batch fluctuations.

1. Name of the product in this design: Packaging Box (Blueberry Lutein Ester Compressed Candy Product Packaging). 2. Purpose of this design: for product packaging and transportation. 3. The key design elements of this product are the combination of shape, pattern, and color. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. The design for which protection is sought includes color.

This invention discloses a catalyst composition, a method for preparing zeaxanthin ester, and the zeaxanthin ester itself. The catalyst composition, comprising an alkaline catalyst and a carbonyl iron catalyst, is used to isomerize lutein ester into zeaxanthin ester. Under alkaline conditions, the catalyst composition of this invention allows the carbonyl iron catalyst to complex with the double bond electron cloud of the 4', 5' carbon atom on the terminal benzene ring of the lutein ester molecule, significantly reducing the energy required for the terminal carbon to capture protons. This facilitates the migration of protons from one negative carbon ion site (6' carbon atom) to another site (4' carbon atom), accelerating the transfer of the double bond position. This reduces the activation energy, decreases the amount of alkaline catalyst required, shortens the reaction time, lowers the reaction temperature, and improves the conversion rate and yield of lutein ester.

The invention discloses a lycium ruthenicum anthocyanin-containing composition for improving visual fatigue and wet macular degeneration as well as a preparation method and application of the lycium ruthenicum anthocyanin-containing composition, and belongs to the technical field of biological medicines. The composition is prepared from the following raw materials in parts by weight: 50 to 99 parts of lycium ruthenicum anthocyanin extract, 0.5 to 25 parts of lutein ester microcapsule powder and 0.5 to 25 parts of zeaxanthin microcapsule powder. According to the composition disclosed by the invention, the lycium ruthenicum anthocyanin extract, the lutein ester microcapsule powder and the zeaxanthin microcapsule powder are compounded, so that the effect of improving visual fatigue and the effect of improving wet macular degeneration can be improved.

The invention discloses a method for preparing lutein ester crystals, which belongs to the technical field of extract processing, and comprises the following steps: (1) adding a mixed solvent of inorganic base, alkane and fatty alcohol into lutein extract, and heating to carry out impurity fatty acid ester saponification reaction; (2) after saponification of the impurity fatty acid ester, carrying out solid-liquid separation to separate out a solvent layer so as to obtain an extract layer; (3) adding a mixed solvent into the extract layer, dissolving, stirring, cooling and crystallizing; and (4) after the crystallization is finished, filtering, washing and drying to obtain lutein ester crystals. According to the method for preparing the lutein ester crystal, the content and yield of the lutein ester crystal prepared by lutein extract crystallization can be effectively improved, the yield of the lutein extract with relatively low lutein ester content is particularly obviously improved, and the content of the prepared lutein ester crystal meets food-grade requirements.

The invention relates to a method for preparing a high-purity lutein ester crystal and application thereof. The present disclosure provides a method for preparing lutein esters by providing a raw material selected from marigold flowers or marigold powder; extracting the raw material with ethanol followed by acetone; and concentrating to obtain an extract, which can then be crystallized to obtain lutein ester crystals of high purity. Further, the present disclosure provides a method for preparing lutein esters by providing a raw material selected from marigold flowers or marigold powder; extracting the raw materials by using isopropanol; and concentrating to obtain an extract, which can then be crystallized to obtain lutein ester crystals of high purity.

1. The name of the product of this design: packaging box (Notland Super Vision Blueberry Lutein Ester Gel Candy). 2. Purpose of this design product: for packaging. 3. The key design point of this design product lies in the combination of shape and pattern. 4. The picture or photo that best illustrates the key points of the design: main view.