Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

551 results about "Xanthophyll" patented technology

Xanthophylls (originally phylloxanthins) are yellow pigments that occur widely in nature and form one of two major divisions of the carotenoid group; the other division is formed by the carotenes. The name is from Greek xanthos (ξανθός, "yellow") and phyllon (φύλλον, "leaf"), due to their formation of the yellow band seen in early chromatography of leaf pigments.

Preparation and stabilization of high-purity xanthophyll ester and method for removing pollutant thereof

The invention relates to method for preparing and stabilizing high-purity lutein ester and removing pollutants thereof; at temperature of 20 DEG C to 70 DEG C, the particles of marigold flowers are dissolved in normal butane or acetone, stirred for 0.5h to 5h and filtered to obtain an extraction solution; an adsorbing agent is added into the extraction solution, stirred for 0.5h to 5h at temperature of 20 DEG C to 70 DEG C and filtered; a mother solution is collected and dried in vacuum, thus obtaining a concentrated substance. The concentrated substance is dissolved in isopropanol or butyl alcohol, stirred for 0.5h to 5h at temperature of 20 DEG C to 70 DEG C and slowly cooled to -10 DEG C to 10 DEG C after forming an even solution, and then filtered after 6 to 18 hours; the filter mass is added with an antioxidant after being washed by lower alcohol, and then dried to remove the lower alcohol, and thus the high-purity lutein ester is finally obtained. The method is characterized by obvious effect on removing pollutants, high product yield and low product degrading speed; and the lutein ester is further made into an oil soluble substance which has stronger stability, thereby solving the problem that the lutein ester product is easily oxidized and not easy for storing, etc.
Owner:INNOBIO CORP LTD

Ultra-high performance liquid chromatographic determination method for content of carotenoid in wheat

The invention relates to a determination method for the content of carotenoid in wheat. The determination method comprises the following steps: (1) preparing a standard sample, namely mixing xanthophylls, zeaxanthin, alpha-carotene and beta-carotene standard substances to prepare a series of standard samples; (2) preparing a to-be-detected solution, namely, dissolving extracted carotenoid into a mixed solution of methyl alcohol and ethyl acetate with the ratio of 68 to 32 to obtain a mixed solution, centrifuging the mixed solution to obtain a centrifuging solution, and enabling the centrifuging solution to pass through an oily filter membrane so as to obtain the to-be-tested solution; (3) testing by adopting an ultra-high performance liquid chromatography, namely testing under a defined chromatographic condition; and (4) processing testing data, namely, drawing a standard curve, and substituting tested peak area data of the to-be-tested solution into the standard curve so as to obtain the content of each component of the carotenoid in the wheat. According to the determination method, the time spent on extracting the carotenoid in the wheat is short, and the efficiency is high; the adopted ultra-high performance liquid chromatography has the characteristics of rapidness, high efficiency, high analysis flexibility and the like, and the xanthophylls and the zeaxanthin can be separated completely; the determination method can be widely applied to the determination of the content of the carotenoid in the wheat.
Owner:INST OF CROP SCI CHINESE ACAD OF AGRI SCI

Xanthophyll-reinforced sweet corn beverage and preparation method thereof

The invention relates to a xanthophyll-reinforced sweet corn beverage prepared by adding a xanthophyll microcapsule into sweet corn juice. A trans-xanthophyll crystal is taken as a core, starch octenylsuccinate and sucrose are taken as wall materials, the xanthophyll microcapsule is prepared by the processes of emulsifying, homogenizing, spray drying and the like, the efficiency and yield of the product microcapsule can reach 90 percent respectively, and the microcapsule has high quality. A preparation method comprises the following steps of: unfreezing quick-frozen sweet corn kernels serving as a raw material, pulping, regulating the pH, performing enzymolysis, filtering, adding a compound stabilizer (xanthan gum and sodium alginate), fructose, citric acid, sodium ascorbate and the xanthophyll microcapsule for mixing, and sterilizing and filling to obtain the xanthophyll-reinforced sweet corn beverage. The sweet corn beverage has unique flavor, fine and smooth mouthfeel and rich nutrition, has certain effect of preventing and treating impaired vision and blindness caused by age-related macular degeneration (AMD), and is particularly suitable for old people; and 100g of sweet corn beverage comprises 2.03mg of trans-xanthophyll, and the trans-xanthophyll content is higher than that of the common sweet corn beverage.
Owner:JIANGSU ACADEMY OF AGRICULTURAL SCIENCES

Extraction and content determination methods for natural astaxanthin of thick-wall microalgae

ActiveCN103630626AAvoid pyrolysisAvoid oxidative deteriorationComponent separationBetaxanthinsAstaxanthin
The invention discloses extraction and content determination methods for natural astaxanthin of thick-wall microalgae. According to the extraction method for the natural astaxanthin of the thick-wall microalgae, the astaxanthin is obtained by utilizing an extraction solvent composed of dichloromethane or trichloromethane and methanol at a low temperature through low-temperature liquid nitrogen protection. According to the extraction method, the astaxanthin is effectively prevented form being decomposed at a high temperature or oxidized so as to avoid going bad; the operation is simple and walls are completely broken; the extraction efficiency is high; the extraction method is applicable to living organisms including the thick-wall microalgae and the like. The extraction method for the natural astaxanthin of the thick-wall microalgae is combined with a high performance liquid chromatography to detect the content of the astaxanthin, namely the content of total carotenoids can be obtained, namely, content information of free astaxanthin, astaxanthin monoester, astaxanthin diester, xanthophyll, zeaksantyna and the like can also be obtained; an important methodology is provided for developing correlational researches on the microalgae astaxanthin and other carotenoids. The high performance liquid chromatography is used for detecting the content of the astaxanthin; the determination accuracy is high and the reliability is high.
Owner:QINGDAO XUNON BIOLOGICAL ENG

Children milk powder and making method thereof

The invention provides children milk powder. The children milk powder comprises the following components in parts by weight: 4-8 parts of full cream goat milk powder, 30-38 parts of skimmed goat milk powder, 5-8 parts of concentration goat whey protein powder, 15-25 parts of lactose, 10-16 parts of vegetable oil, 1-4 parts of glucose syrup solids, 3-6 parts of crystalline fructose, 2-5 parts of fructo-oligosaccharide, 1-3 parts of galacto-oligosaccharide, 0.2-0.4 part of docosahexenoic acid, 0.02-0.05 part of arachidonic acid, 1-2 parts of a mineral premix, 0.2-0.4 part of a vitamin premix, 0.02-0.05 part of taurine, 0.0001-0.0003 part of xanthophyll, 0.03-0.05 part of selenium-enriched yeast powder, and 1.2-2.5 *10<8>cfu/g of active probiotics freeze-dried powder. The children milk powder disclosed by the invention has the effects of being rich in nutrition, and good in absorption effect, and has a positive promotion effect on the development of children. The invention further discloses a making method of the children milk powder. The making method comprises the steps of making semi-finished products and making finished products of the children milk powder, the process flows are simple, the technological parameters are easy to control, and the children milk powder is suitable for mass production.
Owner:HYPROCA NUTRITION CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products