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

9058 results about "Flavones" patented technology

Flavones (flavus = yellow), are a class of flavonoids based on the backbone of 2-phenylchromen-4-one (2-phenyl-1-benzopyran-4-one) (right image). Flavones are common in the food supply, mainly from spices, and red–purple fruits and vegetables. Common flavones include apigenin (4',5,7-trihydroxyflavone), luteolin (3',4',5,7-tetrahydroxyflavone), tangeritin (4',5,6,7,8-pentamethoxyflavone), chrysin (5,7-dihydroxyflavone), and 6-hydroxyflavone.

Method for extracting suaeda salsa flavone and measuring content of flavones in suaeda salsa

The invention relates to a method for extracting suaeda salsa flavone and measuring content of flavone in suaeda salsa. The method comprises the following steps: 1), collecting the suaeda salsa, drying the suaeda salsa and crushing the suaeda salsa; with ethanol as an extractant, soaking the suadeda salsa and carrying out microwave-assisted extracting; filtering; extracting with petroleum ether; transferring the ethanol layer to a macroporous adsorption resin layer; and eluting with water and ethanol aqueous solution sequentially; collecting the eluant, and pressurizing and concentrating the eluant to obtain flavone compound extract; 2), with rutin as a contrast, preparing standard solution with different concentration gradients; measuring the chromatographic peak area at the wavelength of 360nm through a high efficiency liquid chromatography to form flavone content contrast reference; measuring the chromatographic peak area of the to-be-measured solution; obtaining the flavone content of the to-be-measured solution according to the flavone content contrast reference; and obtaining the content of the flavone in the suaeda salsa according to the dilution multiple of the to-be-measured solution. According to the method provided by the invention, soaking and microwave-assisted extracting are adopted to extract flavone, and the content of the flavone is measured by chromatography, so that the method is simple and the solvent is easily available. Besides, the obtained flavone is high in content, and has the physiological and pharmacological activities such as antiviral activity, antioxidant activity, anti-ageing activity and the like.
Owner:YANCHENG INST OF IND TECH

Method for preparing stevia whole stevioside and stevia whole flavone at the same time

The invention discloses a preparing method of total sweet chrysanthemum glycosides and total chromocor in sweet leaf chrysanthemum, which is characterized by the following: comprising sweet chrysanthemum glycosides, stevi primary glycosides, labroid glycosides A, B, C, D, E, F, duacl glycosides A and so on in total sweet chrysanthemum glycosides; comprising cyanidenon, meletin, cyanidenon-7-0-beta-D glycosides, celery element-7-0-beta-D-glycosides, quercetin, meletin-3-0-beta-D-arabinoside, meletin-3-0-[4-0-trans-coffe acyl-alpha-L-isodulcitol-(1-6)-beta-D-arabinoside] and so on; choosing one or several methods from solvent extraction, solvent extraction process, macroreticular absorption resin method, column chromatography, supercritical fluid chromatography, liquid-liquid counter-current partition chromatography and so on; extracting the total chromocor; setting content of sweet chrysanthemum glycosides element in total sweet chrysanthemum glycosides at 5-100%; counting 5-100% of all sweet chrysanthemum glycosides content with sweet chrysanthemum glycosides and labroid glycosides; counting 5-100% of chromocor element in sweet leaf chrysanthemum total chromocor; counting 5-100% of all total chromocor content with cyanidenon-7-0-beta-D glycosides, quercetin and meletin-3-0-[4-0-trans-coffe acyl-alpha-L-isodulcitol-(1-6)-beta-D-arabinoside].
Owner:石任兵 +1

Selenium-enriched suaeda salsa nutritional health-care fine dried noodles and production technology thereof

The invention discloses nutritional health-care fine dried noodles which are developed with suaeda salsa, stigma maydis and Chinese herbal medicines such as the root of kudzu vine, gynostemma pentaphyllum, cortex phellodendri, dandelions, cornus officinalis, radix rehmanniae preparata, herba portulacae, herba houttuyniae, licorice root and stevia rebaudiana as raw materials and have the effects of reducing blood lipid and blood pressure, improving organism immunity, beautifying the face and clearing away toxins, resisting fatigue and the like. The fine dried noodles contain rich functional activated substances such as suaeda salsa and amino acid, polypeptides, water-soluble dietary fibers, ferulic acid, active polysaccharides, saponin and flavone in the Chinese herbal medicines. The fine fried noodles have the advantages that compatibility of suaeda salsa and the Chinese herbal medicines is scientific, functional components in the Chinese herbal medicines are extracted through the technologies including ultrasonic secondary crushing, enzymolysis combined compound microorganism degradation and microwave assisted extraction method, the content of organic selenium in the product is increased, the nutritional healthy functions of the product are remarkably improved, and market prospects are wide.
Owner:QINGDAO JIARUI BIOLOGICAL TECH
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