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

203 results about "Olive leaf" patented technology

Olive leaf is the leaf of the olive tree (Olea europaea). Although olive oil is well known for its flavor and possible health benefits, the leaf and its extracts remain under preliminary research with unknown effects on human health.

Method for purifying hydroxytyrosol

InactiveCN102093170AChange the status quo of blind separationReduce difficultyOrganic chemistryOrganic compound preparationHydroxytyrosolOlive leaf
The invention discloses a method for purifying hydroxytyrosol. The method for purifying the hydroxytyrosol comprises the following steps of: dissolving an oleuropein crude product by using deionized water under stirring; passing through an adsorption type macroporous resin chromatographic column, washing with the deionized water, performing elution by using ethanol aqueous solution, and collecting eluent; performing vacuum concentration until no alcohol exists to obtain refined oleuropein aqueous solution; adding an inorganic acid to react; adding sodium hydroxide to adjust the pH value to be 7 to obtain hydroxytyrosol-containing aqueous solution; performing vacuum concentration; performing extraction by using equivalent ethyl acetate; and laminating ester and concentrating to remove the ethyl acetate to obtain faint yellow paste hydroxytyrosol with purity of more than or equal to 80 percent. In the method, the characteristic of one-way conversion from the oleuropein in an olive leaf resource to the hydroxytyrosol is completely utilized, so that the conversion rate is high, the current situation that the oleuropein component is blindly separated in the purification process of the oleuropein is changed, the oleuropein is converted into the hydroxytyrosol with high economic value, economic benefit is improved, and difficulty in preparation of high-content hydroxytyrosol is greatly reduced.
Owner:天津市尖峰天然产物研究开发有限公司

Olive tea and preparation process thereof

In order to solve the problems that in the existing olive tea preparation process, the nutrition of olive leaves is ruined in the processes of high temperature deactivation, sun-curing, and alkali soaking, the olive leave, only the taste of ingredient remains after the olive tea is soaked, the obtained olive is not high-quality purely natural olive tea, and the unique health care function of the olive leaves can not be sufficiently exerted, the invention provides olive tea and a preparation process thereof. The olive tea is prepared by selecting old leaves, tender leaves or tender shoots of olives. The preparation process comprises the following steps of spreading, moisture preservation, tea washing, dewatering, steaming, forming, curing, storing, frying, rolling depression, secondary curing and screening. The olive tea and the preparation process thereof, which are provided by the invention, have the beneficial effects that branches sheared from olive trees are efficiently utilized, the old leaves, tender leaves or tender shoots are selected, and a certain proportion of olive flowers is taken as the raw material, so that the waste materials can be turned into valuable materials, and further, the profits of enterprises and farmer households are enhanced. The olive tea has the advantages that the preparation process of the olive tea is unique, the nutrition in the olive leaves is kept to the maximum extent, and drinking the olive tea for a long time has a health care effect on human bodies.
Owner:罗新华

Preparation method of long-circulation lipidosome of olive polyphenol extract rich in hydroxytyrosol and verbascoside

The invention discloses a preparation method of long-circulation lipidosome of an olive polyphenol extract rich in hydroxytyrosol and verbascoside. Olive leaf is taken as a raw material, and is prepared into an olive polyphenol extract by extracting with 30 to 50 percent of ethanol, separating with a ceramic membrane and an ultrafiltration membrane and concentrating with a nanofiltration membrane; 90 percent of the hydroxytyrosol, 10 to 40 percent of an oleuropein extract and 90 percent of the verbascoside are compounded to prepare the olive polyphenol extract rich in the hydroxytyrosol and the verbascoside; the hydroxytyrosol and verbascoside polyphenol as model materials, lecithin, cholesterol, a Tween-80 surfactant and the like are prepared into the corresponding lipidosome. The lipidosome has the advantages that the bioavailability of the olive polyphenol extract is remarkably increased, and high encapsulation efficiency, uniform particle size distribution, good stability, slow release property, oxidation resistance and an antibacterial effect are achieved. The preparation method is simple and feasible, equipment is simple, and the application of the lipidosome in the medicine field can be widened.
Owner:INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY +1

Method for extracting hydroxytyrosol from olive leaves

The invention discloses a method for extracting hydroxytyrosol from olive leaves and belongs to the technical field of plant active ingredient extraction. The method disclosed by the invention is characterized in that the olive leaves are used as raw materials, alkali liquor with the pH value being 11 to 14 is used for carrying out heat insulation extraction under the condition of 80 to 100 DEG C, obtained extraction liquid is concentrated and passes through a macroporous adsorption resin column, methyl alcohol or ethanol is used for washing the column, the thin layer chromatography tracking detection is carried out, and alcohol washing eluent is collected; and the alcohol washing eluent is concentrated, extracting agents are used for extraction, extraction phases are collected, concentration and drying are carried out, and the hydroxytyrosol is obtained. Compared with the prior art, the method has the advantages that the olive leaves are subjected to heat insulation extraction by the alkali liquor with the pH value being 11 to 14 under the condition of 80 to 100 DEG C, the extraction and hydrolysis steps are simultaneously carried out, the extraction efficiency is high, and in addition, the hydrolysis reaction is complete; and on the other hand, the extraction and hydrolysis steps can be synchronously carried out, and the transition step is not needed between the two steps, so the work procedure is simplified, the labor and the material are saved, the production cost is reduced, and the industrial production is easily realized.
Owner:GUILIN SANBAO PHARMA

Extraction process for hydroxytyrosol from olive leaf

InactiveCN106565422AThe extraction process is simple to operateLow costSugar derivativesOrganic compound preparationHydroxytyrosolOlive leaf
The invention discloses an extraction process for hydroxytyrosol from an olive leaf, belonging to the technical field of extraction of active components from medicinal plants. The extraction process comprises the following steps: crushing the olive leaf into coarse powder, carrying out percolation extraction by using ethanol with a concentration of 80%, subjecting liquid extract to adsorption with D101 resin, then carrying out elution by using ethanol with a concentration of 60% and carrying out concentration and drying on eluate so as to obtain oleuropein with a concentration of 45 to 55%; and hydrolyzing oleuropein with a sodium hydroxide solution, adding acid for neutralization after complete hydrolysis, carrying out precipitation and centrifugation, subjecting obtained centrifugate to adsorption with D101 resin and elution with hot ethanol, concentrating eluate, then repeatedly carrying out extraction with ethyl acetate four times, and carrying out concentration and drying on ethyl acetate-layer liquid so as to obtain hydroxytyrosol with a concentration of 80 to 90%. The extraction process for hydroxytyrosol from the olive leaf is high in the utilization rate of raw materials, and the prepared oleuropein and hydroxytyrosol can greatly meet market demands.
Owner:广西来宾绿翔生物科技有限公司

Lonicera japonica rose tea and preparation method thereof

The invention discloses a lonicera japonica rose tea and a preparation method thereof. The lonicera japonica rose tea is prepared from the following raw materials: 60-80 of Fagopyrum tataricum, 20-25 of rose, 10-15 of lonicera japonica, 4-6 of lophatherum gracile, 3-4 of lavender, 3-6 of cushaw vine, 4-6 of olive leaf, 6-8 of pineapple leaf, 8-12 of hawthorn, 4-6 of ginkgo leaf, 3-5 of cassia seed, and 8-10 of brown sugar. According to the lonicera japonica rose tea prepared by the method provided by the invention, color protection and oxidation prevention are employed, the functional components are maximumly preserved, also baking and cold soaking are employed so as to precipitate beneficial ingredients more easily, and compounding with other traditional Chinese medicines are realized, the health care value is enhanced, the taste and flavor are improved and reconciled, Fagopyrum tataricum is endowed with flavor, and organic combination with tea is achieved. The lonicera japonica rose tea is convenient to store and eat, can be drinkable after brewing, has light yellow and transparent tea color, is sweet and mellow, has the efficacy of refreshing people and benefiting intelligence, nourishing yin and clearing heat, helping produce saliva and slake thirst, promoting the circulation of blood and maintaining beauty, losing weight and reducing fat, etc., and is beneficial to body health.
Owner:ANHUI YINGHUA PHARMA
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