122 results about "Zeaxanthin" patented technology

The invention discloses a hydroxytyrosol-ergothioneine eutectic crystal as well as a preparation method and application thereof, and belongs to the technical fields of medicines, foods, daily chemicals and the like. The invention provides a hydroxytyrosol-ergothioneine eutectic crystal. The X-ray powder diffraction pattern of the hydroxytyrosol-ergothioneine eutectic crystal has characteristic diffraction peaks at least corresponding to the positions where the 2 theta value is 4.21 degrees + / -0.2 degrees, 8.36 degrees + / -0.2 degrees, 12.29 degrees + / -0.2 degrees, 15.29 degrees + / -0.2 degrees, 19.40 degrees + / -0.2 degrees, 20.98 degrees + / -0.2 degrees, 23.12 degrees + / -0.2 degrees and 28.73 degrees + / -0.2 degrees. According to the hydroxytyrosol-ergothioneine eutectic, the melting point of hydroxytyrosol is increased, the hygroscopicity of hydroxytyrosol is remarkably reduced, and meanwhile the stability of hydroxytyrosol and ergothioneine is enhanced. In addition, after the ergothioneine hydroxytyrosol forms the eutectic crystal, the ergothioneine hydroxytyrosol can also play better anti-oxidation and anti-aging effects.

The invention relates to the technical field of molecular markers, in particular to a biomarker related to the zeaxanthin content character of sweet corn kernels and application of the biomarker. The RIL population is used for performing QTL positioning on the corn kernel zeaxanthin content character, it is found that a major QTL related to the sweet corn kernel zeaxanthin content exists on the sixth chromosome of corn, the major QTL is located between SNP sites Schr6: 83027949 and Schr6: 84835891, the phenotype contribution rate of the corn kernel zeaxanthin content is 18.69%, and the major QTL is a major QTL related to the sweet corn kernel zeaxanthin content. The major QTL can be used for screening or auxiliary screening of sweet corn with relatively high zeaxanthin content, when the genotype of Schr6: 83027949 is GG and the genotype of Schr6: 84835891 is AA, the zeaxanthin content is relatively high, technical support is provided for molecular marker-assisted breeding, and the major QTL has important significance in improving the nutritional quality of the sweet corn.

The invention relates to a zeaxanthin adenine dinucleotide synthetase gene ZmFADS1 and an encoded protein and application thereof, and belongs to the technical field of plant genetic engineering, the ZmFADS1 gene has a nucleotide sequence shown as SEQ ID NO.1, zeaxanthin adenine dinucleotide synthetase encoded by the gene has an amino acid sequence shown as SEQ ID NO.2, and the zeaxanthin adenine dinucleotide synthetase has a nucleotide sequence shown as SEQ ID NO.1. The zeaxanthin adenine dinucleotide synthetase has a nucleotide sequence shown as SEQ ID NO.2. The overexpression of the gene in plants can improve the quality of corn kernels. The ZmFADS1 gene is cloned from corn for the first time, and the mechanism that the ZmFADS1 can improve the FAD synthesis capacity of plant leaves through overexpression in the corn and further improve the enrichment capacity of the leaves on heavy metal arsenic so as to reduce the arsenic content in corn kernels is found, so that a theoretical basis is provided for cultivating corn varieties with low-arsenic-content kernels.

The invention discloses a health-care composition, and belongs to the field of health-care foods. Every 1000 mL of the composition contains 1.7 to 1.9 g of lutein ester, 0.52 to 0.61 g of zeaxanthin, 0.35 to 0.47 g of astaxanthin, 30 to 60 g of a chrysanthemum extract, 40 to 70 g of celery powder, 30 to 60 g of Lithocarpus litseifolius powder, 110 to 130 g of a sweetening agent and the balance of purified water. According to the composition provided by the invention, all the raw materials are compounded for use, so that a remarkable asthenopia relieving effect is achieved, and eye health is favorably promoted.

The invention belongs to the technical field of health care, and particularly relates to eye protection nutrition powder and a preparation method thereof, the eye protection nutrition powder comprises glucose, whole milk powder, fruit powder, marigold powder, flaxseed powder, seaweed meal, haematococcus pluvialis powder, lutein ester, zeaxanthin, beta-carotene, ceramide and DHA algae oil powder. The eye protection nutrition powder is good in absorption effect, improves visual fatigue and yellow bottom spot lesion, and effectively protects eyes; and the concentration and memory can be improved. According to the eye-protecting nutrition powder prepared by adopting a biological wall-breaking and multi-flora fermentation technology, effective components can be dissolved out to the maximum extent after the eye-protecting nutrition powder is taken, and the nutrition powder prepared by the method is easy to absorb by a human body and high in bioavailability.

The invention discloses functional eye-protecting soft sweets capable of resisting oxidation and reducing apoptosis of eye cells and a preparation method. The functional eye-protecting soft sweets comprise the following components in percentage by weight: 2-10% of functional components and the balance of auxiliary materials, the functional components comprise at least one of blueberry anthocyanin, lutein ester, zeaxanthin, astaxanthin, lycopene and beta-carotene, as well as vitamin C and / or vitamin E. The functional soft sweets provided by the invention have the effects of removing DPPH free radicals and reducing eye apoptotic cells, and compared with soft sweets without vitamin C / vitamin E, the vitamin C / vitamin E added in the formula can reduce the attenuation degree of functional nutrients in the effective period.

A trace element supplement consisting of lutein, zeaxanthin, astaxanthin, anthocyanins, and proanthocyanidins is designed to improve retinal health in children and adolescents, relieve eye strain, and slow the progression of myopia. The daily dose is 1–20 mg lutein, 0.2–4 mg zeaxanthin, 0.5–8 mg astaxanthin, 10–700 mg taurine, and 0.5–8.5 mg zinc; the nighttime dose is 1–100 mg eyebright extract, 10–300 mg chamomile extract, 1–200 mg anthocyanins, and 1–500 mg proanthocyanidins.

Disclosed in the present invention is a genetically-engineered Yarrowia lipolytica strain highly producing carotenoids, which is obtained by constructing a xylose-induced activation system in the genetically-engineered Yarrowia lipolytica strain XK17 to control the induced expression of critical enzymes for synthesis of astaxanthin, wherein the critical enzymes for synthesis of astaxanthin comprise β-carotene hydroxylase CrtZ and β-carotene ketonase CrtW. Further disclosed in the present invention is the use of the genetically-engineered Yarrowia lipolytica strain in fermentation production of carotenoids. The present invention starts from the Yarrowia lipolytica strain XK17 highly producing β-carotene, and uses the xylose-induced activation system to separately control the expressions of the β-carotene hydroxylase (CrtZ) and β-carotene ketonase (CrtW) or only control the expression of the CrtW or the CrtZ, thereby separately achieving highly producing astaxanthin, or canthaxanthin, or zeaxanthin under the functions of a proper xylose induction concentration and induction opportunity.

The invention discloses a lutein ester and / or zeaxanthin eye protection composition and a preparation method and application, and particularly relates to the technical field of nutritional agent preparation, the lutein ester and / or zeaxanthin eye protection composition comprises lutein ester and / or zeaxanthin, vitamin C, blueberry powder, D-mannitol, astaxanthin, vitamin E, selenium, glutathione and lactoferrin; according to the invention, high-purity lutein ester and / or zeaxanthin are / is used as main active components, and a plurality of auxiliary components are combined; the plant eye protection composition can significantly improve the eye protection effect and effectively prevent and improve the eye health problems such as lacrimation, crystalline lenses and maculopathy, the lutein ester and / or the zeaxanthin are / is dispersed to the nanoscale through the combination of the nano-dispersion technology and the microencapsulation technology, microcapsules are formed through wall material wrapping, and the eye protection effect of the plant eye protection composition is improved. The stability and solubility of the composition are improved, and the residence time of the active ingredients in the body is prolonged, so that the durability of the eye protection effect is enhanced.

The invention relates to the technical field of nutritious food, and discloses a DHA microcapsule and a preparation method thereof. The DHA microcapsule contains a core material and a wall material, the core material contains DHA oil, squalene and carotenoid, the carotenoid is selected from at least one of beta-carotene, alpha-carotene, lycopene, xanthophyll and zeaxanthine, and the mass ratio of the DHA oil to the squalene to the carotenoid is 1: (0.1-0.55): (0.04-0.16). The DHA microcapsule has relatively low surface oil and a relatively good embedding effect, and active substances in the DHA microcapsule have a relatively high retention rate.

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.

The present invention discloses a β-carotene-grape seed extract eye-care preparation for retinal protection, relating to functional health foods. The preparation comprises active components and food-acceptable excipients. In parts by weight, the active components include 1–4 parts lutein, 0.5 –2 parts meso-zeaxanthin, 2 – 6 parts β-carotene, 8 – 25 parts blueberry extract, 5 – 18 parts grape seed extract, 0.2–1 part L-ergothioneine, 0.5–3 parts saffron extract, and 1–5 parts phosphatidylserine. The excipients comprise a filler, disintegrant, binder, and lubricant, with a weight ratio of active components to excipients of 1:1 to 1:4. By combining these eight components at specific ratios, the invention achieves synergistic effects, protects retinal health, and reduces blue-light damage. Dual-phase microencapsulation based on solubility, together with standardized preparation steps, improves stability and utilization efficiency.

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 application discloses corn silk glucan, a structure formula of which is [→4)-β-D-Glcp-(1→]n, wherein n is 6-60, and a molecular weight range is 1-9.8 kDa. By extracting effective components in corn silk, an extract is obtained, the extract is precipitated by 30-90% ethanol, corn silk crude polysaccharide is obtained, and after the corn silk crude polysaccharide is dissolved, the corn silk crude polysaccharide is sequentially subjected to biological membrane dialysis, ion exchange resin column and HPLC-ELSD separation and purification, and corn silk glucan is obtained. The corn silk glucan and zeaxanthin are compounded to form a glucan compound, the glucan compound can stabilize insulin and improve the activity of the insulin in mouse islet cells, and the glucan compound has 2-5 times stronger hypoglycemic activity than that of zeaxanthin alone, and therefore, the glucan compound has important significance for researching new hypoglycemic drugs or health-care food for assisting hypoglycemia.

The present invention relates to the use of a new strain of the microalgae Chlorella vulgaris Chlorella vulgaris for the production of lutein and zeaxanthin, as well as to the method for obtaining it.

The application provides a fermentation method for increasing the content of zeaxanthin and application thereof in eyesight-improving drinks, and comprises the following steps: S1, mixing fruit residues for pretreatment, S2, enzymolysis, S3, preparation of fermentation medium, and S4, inoculation and fermentation. Through the mixing, pretreatment, enzymolysis and fermentation of seabuckthorn fruit residues, loquat fruit residues and sweet potato skin residues, high-content zeaxanthin is produced, the high-value utilization of solid waste resources is realized, the raw material cost is reduced, the production method of zeaxanthin is effectively expanded, and the equipment requirement is low and easy to popularize on a large scale.

The invention belongs to the technical field of functional food, and particularly relates to a brain-strengthening and eyesight-improving composition as well as a preparation method, a product and application thereof. The composition is prepared from algal oil, linseed oil, arachidonic acid, marigold extract, zeaxanthin suspension oil, NA nervonic acid and PS phosphatidylserine according to a specific weight part ratio. Wherein the marigold extract is prepared by adopting freeze-grinding pretreatment, combining enzymolysis and an ultrasonic-microwave synergistic extraction technology, and performing nanofiltration membrane concentration and vacuum freeze-drying. According to the composition, through the synergistic effect of all the components and an innovative extraction process, the effects of efficiently strengthening the brain and improving eyesight are achieved, and compared with a traditional formula and an extraction method, the component activity retention and the effective component extraction rate are remarkably improved.

According to the extraction method of the boxthorn seed oil and the application of the boxthorn seed oil in preparation of the eye-protecting and eyesight-improving product, through compounding of the boxthorn seed oil, the olive oil and the zeaxanthin and innovation of the preparation process, the boxthorn seed oil, the olive oil and the zeaxanthin have a synergistic effect on the eye-protecting and eyesight-improving effects, and meanwhile the bioavailability of the boxthorn seed oil is improved. An extraction system of the eutectic solvent and the enzyme preparation can hydrolyze cell walls of the lycium barbarum seeds, a net structure composed of cellulose is destroyed, and oily components in the lycium barbarum seeds are promoted to be released. Meanwhile, the deep-eutectic solvent has a protective effect on enzyme, so that the enzyme preparation has better hydrolytic activity under proper extraction conditions. According to the method, the oil yield of the wolfberry seed oil and the content of related active ingredients are greatly improved. On the other hand, the olive oil can significantly improve the intake of the active ingredients in the lycium seed oil by retinal cells, and the bioavailability of the lycium seed oil is improved.

This invention discloses a method for preparing avermectin nanoparticles supported on zein-sodium lignin sulfonate, and its applications. The preparation method involves dissolving avermectin and zein in an organic solvent to form a solution (stream 1), and dissolving sodium lignin sulfonate or modified sodium lignin sulfonate in deionized water to form a solution (stream 2). Both streams are simultaneously injected into a dual-channel confined counter-current mixer for rapid mixing. The resulting nanoparticle suspension is then collected, completing the preparation process. This invention utilizes the compatibility of hydrophobic zein with avermectin, combined with the self-assembly properties of zein and the use of sodium lignin sulfonate or modified sodium lignin sulfonate as a stabilizer, to prepare avermectin nanoparticles with high drug encapsulation efficiency and excellent drug release performance. Furthermore, these nanoparticles exhibit excellent resistance to UV photodegradation, effectively reducing the photodegradation of avermectin. The method is simple, rapid, and easy to control.

The invention relates to a lutein zeaxanthin soft capsule and a production process thereof, and belongs to the technical field of health care products. The xanthophyll and the zeaxanthin are used as main active components, and the DHA, the blueberry extract, the glutathione and the lactoferrin are used as auxiliary materials to synergistically enhance the eye protection effect of the capsule. The beeswax, the wheat germ oil and the active ingredients are mixed and homogenized by a high-pressure homogenizer, so that uniform dispersion of the ingredients is ensured, the absorption efficiency of the ingredients is enhanced, and the effect of the capsule is further improved through stability and release control of the active ingredients in wrapping of the active ingredients.

The application provides a method for promoting the weight increase of saffron offsprings by enhancing illumination, comprising the following steps: transplanting the mother corms into the soil for vegetative growth after picking the filaments, the illumination intensity is 20000 Lux, and periodic maintenance management is implemented, water is supplemented once every two weeks, and the morphological indexes of the offsprings are observed, the offsprings are harvested after all the leaves wither. The experimental results show that increasing the illumination intensity reduces the expression level of CsCCD2L in the leaves, increases the content of zeaxanthin, and is conducive to photosynthesis, thereby providing nutrition for the development of the offsprings; the increase of the weight of the offsprings can significantly increase the number of flowers and improve the yield of saffron, and is expected to solve the bottleneck problem of low saffron yield.

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.

[Problem] To provide a lutein–rich egg and a zeaxanthin-rich egg respectively containing lutein and zeaxanthin at high concentrations, a processed food material produced by processing each of the eggs, a method for producing each of the eggs, methods for producing the respective eggs, and a feed for egg-laying hens for use in the production methods. [Solution] In the lutein-rich egg according to the present invention, the lutein content is 2 mg or more in 100 g of the edible part of the egg. Since the lutein-rich egg according to the present invention contains lutein at a high concentration, daily ingestion of the egg in humans can protect human eyes from light stimulus and contribute to eye health maintenance. Therefore, the egg can be helpful for preventing the risk of eye diseases.

The present invention provides the Cellulophaga omnivescoria MSK1 strain, which biosynthesizes the carotenoid zeaxanthin, and relates to a method for producing zeaxanthin from agarose, which is a substance extractable from biomass, by culturing the strain and utilizing same. The zeaxanthin produced by the novel MSK1 strain provided in the present invention can be sustainably produced, and thus can be widely applied as a natural antioxidant material for health supplements, functional cosmetics, and pharmaceuticals. In addition, the MSK1 strain can serve as a fundamental bio-industrial material for the continuous supply and commercialization of zeaxanthin.

The present invention discloses an eye protection composition of lutein ester and / or zeaxanthin and a preparation method and application thereof, and relates to the technical field of compositions. The eye protection composition is composed of oligofructose, xanthan gum, gum arabic, pectin, water, lutein ester and / or zeaxanthin, and the mass ratio of the oligofructose, xanthan gum, gum arabic and pectin is 1-4: 0.05-0.8: 0.02-1.5: 0.01-1.2. The present invention utilizes oligofructose to compound with xanthan gum, gum arabic and pectin, so that the colloid is more easily dissolved in water, while increasing the compatibility between colloids, improving the stability of the colloid system, and effectively solving the problem of lutein ester and / or zeaxanthin precipitation and precipitation in water. During the storage process of the product prepared by the present invention, lutein ester and / or zeaxanthin have no precipitation, flocculation or precipitation problems, and have good stability, thereby ensuring the efficacy of the eye protection product.

The invention relates to application of zeaxanthine in improving cold resistance of plants, and belongs to the technical field of agriculture. The invention provides an application of zeaxanthine in improving the cold resistance of a plant. The plant is dendrobium nobile. According to the method, zeaxanthine aqueous solutions with different concentrations are sprayed to the low-temperature-stressed dendrobium nobile, and by measuring various parameters of the dendrobium nobile, results show that the yellow leaf rate, the leaf falling rate and the relative electric conductivity of plants can be reduced by spraying the zeaxanthine aqueous solution with the concentration of 50 mg / L to the low-temperature-stressed dendrobium nobile plants, the low-temperature semi-lethal temperature of the plants is reduced, and the yield of the plants is increased. The content of malonaldehyde, soluble protein, soluble sugar, proline and chlorophyll in the plants can be increased, the stress resistance of the plants is enhanced, damage caused by low temperature is relieved, and it is comprehensively known that the cold resistance of the dendrobium nobile can be enhanced by externally applying the zeaxanthine aqueous solution with the concentration of 50 mg / L.

The invention provides a method for promoting weight increase of saffron crocus progeny corms by enhancing illumination, which comprises the following steps: picking filaments, transplanting mother corms into soil for vegetative growth under the illumination intensity of 20000Lux, implementing periodic maintenance management, supplementing water once every two weeks, observing morphological indexes of the progeny corms, and harvesting the progeny corms after all leaves are withered. Experimental results show that the expression level of CsCCD2L in leaves is reduced by increasing illumination intensity, so that the content of zeaxanthin is increased, photosynthesis is further facilitated, and nutrition is provided for development of filial generation corms; the increase of the corm weight of the filial generation can significantly increase the flowering number, improve the yield of saffron crocus, and hopefully solve the bottleneck problem of low yield of saffron crocus.

The present invention relates to a dietary supplement indicated for the treatment of macular degeneration, more specifically a dietary supplement designed to assist in combating macular degeneration. The formulation is based on fish oil (a source of omega-3 TG) combined with cysteine, taurine, lutein, zeaxanthin, and vitamins, supporting visual health through a synergistic action of its components, enhanced by the benefits of omega-3. The present invention also relates to a capsule comprising said dietary supplement and the use of said supplement for combating macular degeneration.

Described herein are methods and compositions that comprise an amount of at least one active agent, such as at least one carotenoid and an ingredient or extract of bilberry, preferably an amount of at least one of: lutein, zeaxanthin, β-carotene, lycopene, and an ingredient or extract of bilberry; and an additive.

The present invention relates to the use of a new strain of the microalgal species Chlorella vulgaris for producing lutein and zeaxanthin, as well as to the method for obtaining it.