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90 results about "Cork" patented technology

Cork is an impermeable buoyant material, the phellem layer of bark tissue that is harvested for commercial use primarily from Quercus suber (the cork oak), which is endemic to southwest Europe and northwest Africa. Cork is composed of suberin, a hydrophobic substance. Because of its impermeable, buoyant, elastic, and fire retardant properties, it is used in a variety of products, the most common of which is wine stoppers. The montado landscape of Portugal produces approximately half of cork harvested annually worldwide, with Corticeira Amorim being the leading company in the industry. Cork was examined microscopically by Robert Hooke, which led to his discovery and naming of the cell.

Sealing device for a bottle containing sparkling wine

The invention concerns a device for sealing a bottle containing a sparkling wine and includes a stopper, particularly made of cork or a synthetic material, capable of being inserted in the neck of the bottle, maintained thereon by a wire cap, and run through in the axial direction, by a conduit having first and second ends capable of communicating respectively with the bottle's internal volume and external volume. The second end is closed by a retractable closer. The device is characterized in that the stopper is axially run through by an orifice designed to receive the conduit and having an adjusted and tight cross-section relative to the conduit external section, the latter being provided at its second end, with a support flange capable of resting against the stopper upper surface.
Owner:ETUD & CREATIONS E C B +1

Floating trawl for investigating macroplankton in upper middle water body of inland large water surface

InactiveCN103039408AFishing netsForce linesShrimp
The invention relates to a floating trawl for investigating macroplankton in an upper middle water body of an inland large water surface. The floating trawl comprises a trawl bag, trawl lines, corks, sinkers and support rods which are tie up, wherein the trawl bag comprises a trawl body, a packing trawl and wing trawls, the trawl lines include force lines, an upper line, a lower line, a cork line, a sinker line and fork lines, a radial cross section of the trawl bag gradually shrinks from the front to the rear, a larger opening end of the trawl body is connected with the wing trawls, the smaller opening end of the trawl body is connected with the packing trawl, an outlet is arranged at the rear end of the packing trawl, and a tying rope is arranged at the outlet of the packing trawl. The floating trawl has the advantage that a floating trawl with operating water depth larger than 2.00m is provided for specially investigating the macroplankton in the upper middle water body of the inland large water surface, is mainly used for investigating and sampling work of biological larvae like basic production, plankton, fish, shrimps and crabs on the inland large water surface, and fills the blank of the biological investigation field for the macroplankton in the upper middle water body of the inland large water surface.
Owner:河北省海洋与水产科学研究院

Anti-counterfeiting marked bottle

An anti-counterfeiting marked bottle comprises a bottle cap and a bottle body, wherein an anti-counterfeiting hole is arranged in the wall of a bottleneck of the bottle body, and is provided with an anti-counterfeiting device and an anti-counterfeiting agent, the anti-counterfeiting device is formed by an anti-counterfeiting container and an anti-counterfeiting cork, an anti-counterfeiting liquid with a specific color is contained in the anti-counterfeiting container, and the anti-counterfeiting cork is provided with a diversion groove; the bottle cap consists of an inner cap and an outer cap, the outer cap is formed by an upper outer cap and a lower outer cap, a bottle cap pull-apart device is arranged at a connection position of the upper outer cap and the lower outer cap, and the bottle body is made from transparent materials; and after the bottle is opened, the anti-counterfeiting liquid and the anti-counterfeiting agent are reacted to solidify, a solidified anti-counterfeiting mark with a specific color is left in the anti-counterfeiting hole, so consumers can identify the old bottle according to the anti-counterfeiting mark.
Owner:林智勇

Softball with great resilient coefficient

A softball associated with the game of softball comprises a core, an inner cover and an outer cover. The core is made by a mold and of either a cork material or a polyurethane material. The inner cover surrounds said core, being made of a material different from the core and selected from the group of a cork-type material and a polyurethane-type material. The outer cover surrounds both the core and the inner cover. The softball thus formed can sustain substantially constant hardness against variations in temperature and humidity. Further, by adjusting the ratio of thickness of the core and the inner cover, the softball can attain a higher coefficient of resilience as required.
Owner:YANG WEN

Pressing machine for red wine corks

The invention relates to a pressing machine, and especially relates to a pressing machine for red wine corks. The technical problem is how to design a pressing machine for red wine corks, capable of replacing manual operation to cut oak, simple and convenient to operate, and labor-saving. The pressing machine for the red wine corks comprises a base, wherein support rods are distributed at one sideof the base at intervals, and at least five support rods are arranged; a transversal plate is installed between end parts away from the base, of the support rods; a support plate is installed at oneside away from the support rods, of the base; and an L-shaped rod is installed at the middle part of one side away from the base, of the transversal plate. According to the pressing machine for the red wine corks, oak is moved to make contact with the L-shaped rod, a telescopic rod of an electric push rod is started to continuously move forwards and backwards, a round-nose cutting tool cylinder isenabled to move backwards to cut the oak, and the oak is cut into the corks; and moreover, through a pushing mechanism, the oak can be driven to move to the left after every cutting, and the oak doesnot need to be held with a hand to move to be cut, so that the labor is saved, and the operation is convenient.
Owner:邹建文

Ambroid handiwork and manufacturing method thereof

The invention discloses an ambroid handiwork. In the invention, an organism, glass fragments and chloroform are used as raw materials and a proper amount of toner is added. The manufacturing method comprises the following steps of: (1) preparing a fresh organism, regulating the limbs or unfolding the wings of the fresh organism according to an ornamental requirement, drying and shaping at the temperature of 30-50 DEG C, and processing fishes and mollusks with an organic solvent to form an evaporated specimen; (2) weighing the organic glass fragments and the chloroform in parts by mass, smashing the organic glass fragments into pieces like rice grains or grinding the organic glass fragments into powder, filling into a glass bottle, adding the chloroform, tightly covering a bottle cork, standing for a few days to sufficiently dissolve the organic glass fragments, and obtaining a transparent combination material; (3) selecting a corresponding mould according to a needed shape; and (4) taking a proper amount of the transparent combination material several times, evenly mixing, injecting the transparent combination material into the mould, embedding the specimen into the transparent combination material, molding, and after a molded blank is demolded, cutting and grinding the molded blank. The ambroid handiwork has high strength and good transparency, and the manufacturing method is simple and quick and has low cost.
Owner:CHANGSHU HENGSHENG ARTS & CRAFTS

Protector member for liquid in a container

The specification discloses a protector member (10) capable of being introduced through a neck region (25) of an opened wine bottle (26) by being flexibly deformable, the protector member (10) being flexibly deformable to a condition enabling introduction through the wine bottle neck region (25) and once within the wine bottle (26) being expandable to a use condition where an outer peripheral edge (15, 62) of the protector member (10) is positioned adjacent to or against an inner surface of the wine bottle (26) while floating on a surface of wine held within the wine bottle (26), the protector member (10) being characterized by being either a multipart construction including a first flexible sheet (11, 19) material containing in a first zone (14) a plurality of individually sealed spaces (22) each having a volume and at least some of which contain a gas, and a second flexible sheet material (12, 19), one or both of the first or second flexible sheet materials having a radially outer edge (15) forming the outer peripheral edge of the protector member (10) extending radially beyond the first zone (14); or by being a continuous sheet member, the continuous sheet member (60) being composed of a cork or cork based material such as granulated cork bonded to form said sheet member (60); the protector member (10) being substantially liquid wine and gas impervious; the specification also discloses a device (27, 30) for introducing a protector member (10) as aforesaid into a wine bottle (26) the device (27, 30) having an outer flexible container (27) holding a said protector member (10) therein, the outer flexible container (27) being open or openable along at least a portion of two opposed edge regions (28, 29), the device (27, 30) further including a delivery member (30) capable of engaging and rolling the protector member (10) on itself within the outer flexible container (27) and to then insert the rolled protector member (10) through the wine bottle neck region (25) passing beyond one of said two opposed edge regions (28, 29) of the outer flexible container (27).
Owner:CREATED BY BRAINWAVE

High-hydrophobicity wood sponge with electric-thermal conversion capability as well as preparation method and application thereof

The invention discloses a high-hydrophobicity wood sponge with electric-thermal conversion capability as well as a preparation method and application thereof. The preparation method of the wood spongecomprises the following steps: firstly, soaking low-density cork wood into a sodium hypochlorite solution and a sodium hydroxide solution in sequence for treatment so as to remove lignin and hemi-cellulose respectively, constructing a longitudinal pore channel structure; freeze-drying the chemically treated cork wood, then putting the freeze-dried cork wood into a water solution of graphene oxideand ascorbic acid, soaking for 10-60 minutes, taking out the soaked cork wood, placing the soaked cork wood at the temperature of 150-200 DEG C for 2-6 hours to enable graphene oxide attached to thesurface of a cork wood skeleton to carry out thermal reduction; finally, putting the treated cork wood into an ethanol solution of fluoro-silane, soaking for 6-24 h, taking out the cork wood, and drying to obtain the high-hydrophobicity wood sponge. The water contact angle of the high-hydrophobicity wood sponge reaches 145 degrees, and the high-hydrophobicity wood sponge has good electricity-heatconversion capacity and can be used for separating high-viscosity crude oil from water.
Owner:SOUTH CHINA UNIV OF TECH

Treatment process for improving aging resistance of cork wood by using nano ZnO coating

The invention discloses a treatment process for improving aging resistance of cork wood by using a nano ZnO coating. Firstly, the cork wood is placed in a drying box; wherein the treatment temperatureranges from 60 DEG C to 110 DEG C; wherein the treatment time is 2-24 hours; then, the cork wood subjected to heat treatment is put into a nano ZnO suspension liquid to be subjected to dipping treatment; in order to ensure the stability of the ZnO suspension liquid, a stirring device is adopted for stirring in the dipping process, the treatment temperature is 30-50 DEG C, the treatment time is 1-2 days, a dipped cork wood sample is placed in an air blowing dryer to be dried, heat preservation is conducted for 12-36 hours at the temperature of 80 DEG C below, furnace cooling is conducted to the room temperature, and finally drying is conducted till the weight of the sample is not changed. The anti-aging treatment of the cork wood can be realized, the process is simple, and the operation isconvenient.
Owner:江苏林德曼新材料科技有限公司

Potting media additive and preparation method

The invention provides a potting media additive. The potting media additive is mainly prepared from the following components in parts by weight: 100 parts of chinaberry bark and root-bark, 50-70 parts of amur cork tree bark, 60-80 parts of prepared rhizome of rehmannia, 60-100 parts of fruit of rangoon creeper, 2-8 parts of lactobacillus, 1-7 parts of ferrous sulfate, 2-8 parts of zinc sulfate, 2-6 parts of manganese sulfate and 1-5 parts of ammonium molybdate. The invention also discloses a preparation method of the potting media additive. Compared with the prior art, the potting media additive and the preparation method have the advantages of low cost and simple process; the nutritional deficiency of the soilless potting media can be made up, and most importantly, the occurrence probability of diseases and insect pests of potted plants can be reduced.
Owner:山东信开源科技创新发展有限责任公司

Coated cork particles and preparation method thereof

The invention provides coated cork particles and a preparation method thereof. The coated cork particles are applied to artificial turf. The coated cork particles comprise cork particles, an EVA polymer emulsion and an EVOH film, wherein the EVA polymer emulsion is coated on the surface of the cork, and the EVOH film is used for wrapping the cork coated with the EVA emulsion. According to the invention, the cork which is natural renewable filling particles is adopted to replace traditional quartz sand and rubber particles; and the cork particles, the EVA polymer emulsion and the EVOH film supplement each other and complement each other in advantages, so that the prepared coated cork particles have good wear resistance and resilience, and also have renewable and reusable effects.
Owner:GUANGZHOU AOSHENG ARTIFICIAL STRAW CO LTD

Method for preparing cord and colour-strip cord coiled material

The invention relates to a method for producing cork and color-strip cork, which includes blank preparation, coating adhesive, molding and rotary cutting. The invention takes seamless slicing and spiral squeezing method to make standard cork, cork composite material coiled blank to produce a seam-less cork, composite cork and color-strip cork coiled material.
Owner:郑林义

Flip type thermos bottle cork

The invention provides a flip type thermos bottle cork. By adopting the flip type thermos bottle cork, the following shortcomings are overcome: the existing thermos bottle corks are poor in heat insulation effect, poor in adaptability and easy to fall out in winter, and can accidentally drop and fall to the ground at any time, etc. In the bottle cork, three air layers playing the heat insulation role are arranged in a cork column of a cork body, and two heat insulation layers are arranged between the outer wall of the cork column and the inner wall of a bottle neck of a bottle liner; the free end of a long plate section 302-2 of a transfer strip 302 is clamped between an auxiliary bayonet and a main bayonet, and symmetrical rotating shafts at the free end of an arch-shaped section 302-1 are respectively clamped into two mutually symmetrical clamping rings in a cork seat; a heat insulation sheet 305 tight fit in a lower cork barrel 202 is clamped between an annular heat insulation sheet ridge of the lower cork barrel 202 and the end of an upper cork barrel; and a seal ring 301 with semi-circular-arc-shaped radial section is arranged around the outer wall of the lower cork barrel 202 through tight fit. By adopting the flip type thermos bottle cork, the heat insulation function of a thermos bottle can be significantly improved, the consumption of raw materials is reduced, and the flip type thermos bottle cork can be matched with the thermos bottles from different manufacturers and is easy to popularize.
Owner:王华

Allergy-relieving cosmetic composition and preparation method thereof

The invention relates to an allergy-relieving cosmetic composition and a preparation method thereof, the cosmetic composition comprises purified water, an emulsifier, an emollient, a skin conditioner,polyol, EDTA-2Na and an allergy-relieving active substance, and the allergy-relieving active substance is a compound of an European cork oak bark extract and an oak root extract. By utilizing a high-pressure microjet technology, the allergy relieving effect of the cosmetic composition is further improved.
Owner:NOX BELLCOW COSMETICS CO LTD

Novel bottle cap of thermos bottle

The invention discloses a novel bottle cap of a thermos bottle. The novel bottle cap of the thermos bottle is of a conical structure and comprises a cork layer and a heat-insulation ring. The heat-insulation ring is sleeved on the cork layer, a temperature indicator is arranged on the upper surface of the cork layer, and a temperature detection probe is arranged at the lower end of the cork layer and is connected onto the temperature indicator by a line. The novel bottle cap has the advantages that the heat-insulation ring and a temperature detection device are additionally arranged on a common bottle cap of a thermos bottle, so that the temperature of hot water in the bottle can be visually observed, and the novel bottle cap is small in structure, convenient to replace, suitable for various common thermos bottles on the market and wide in application range.
Owner:张洪平

Cork recycling device for waste shuttlecock heads

The invention discloses a cork recycling device for waste shuttlecock heads. The cork recycling device comprises a containing block, a cutting mechanism is arranged in the containing block, the cutting mechanism is used for cutting the shuttlecock heads, and the cutting mechanism comprises a cutting block fixedly arranged in the containing block. According to the cork recycling device, shuttlecocks can be recycled according to the shapes of the shuttlecocks, feather is pulled out through pressing plates and overturning plates, the shuttlecock heads are fixed through steel needles, the shuttlecock heads are cut through cooperation with a special cutting track, and therefore, the feather, glue, sheepskin and the like on the shuttlecock heads are removed under the condition that the completeness of cork is guaranteed, and regeneration treatment is facilitated. Therefore, the problem that due to the fact that the shuttlecocks can be abandoned when the feather is lost, the cock is wasted is solved. The cork recycling device is high in automation degree, high in efficiency and worthy of being vigorously produced, put into use and popularized.
Owner:深圳市旺大源科技有限公司

Red wine combination set

The invention discloses a red wine combination set. The red wine combination set is characterized in that a packing box is a shell, the shell is made of cork wood and is in the shape of a groove with an upper opening, and the packing box is provided with a rectangular section; four identical bottles are arranged inside the packing box and are glass bottles with fan-shaped cross sections, right-angle surfaces of the four bottles are connected with one another, a combination with a circular cross section is formed after the four bottles are connected with one another, a cylindrical bottleneck is arranged on the top of each bottle and is communicated with the inside of the bottle, the lower portion of each bottleneck is connected with the corresponding bottle, and a bottle cap is arranged on the upper portion of each bottleneck; slots which correspond to the four bottles after the four bottles are connected with one another are formed in the inner bottom surface of the packing box, and the four bottles are arranged in the slots. Compared with the prior art, the red wine combination set has the advantages of simple structure, simplicity in process, convenience in manufacturing and mounting, low cost, good effect and the like.
Owner:刘艳红

Granulator for cork granule production

The invention relates to the technical field of cork granule production, and discloses a granulator for the cork granule production. The granulator comprises a machine body, a crushing mechanism, a granulating mechanism and a screening box, the crushing mechanism is arranged in the machine body, and the granulating mechanism is arranged at the lower end of the machine body. According to the granulator for the cork granule production, a servo motor is started to drive a fourth rotating shaft to rotate, so that a screening net barrel is driven to rotate, cork granules falling at the left end in the screening net barrel are rotationally screened, small cork granules fall to the bottom in the screening box along with rotation of the screening net barrel, large cork granules roll to the right end of the screening net barrel and roll out along with the rotation of the screening net barrel, if the cork granules are clamped in meshes of the screening net barrel and rotate to the topmost end along with the screening net barrel, the cork granules fall out of the meshes due to gravity, the phenomenon that a screening net is blocked cannot be caused, the efficiency is high, the screening net does not need to be manually cleaned at regular time, and the labor amount is reduced.
Owner:德水软木湖北有限公司

Refrigeration machine for refreshing red wine and automatically pouring wine

InactiveCN101717061BTo keep the aromaRealization of automatic wine dispensingDomestic cooling apparatusLighting and heating apparatusCorkNitrogen gas
The invention discloses a refrigeration machine for refreshing red wine and automatically pouring the wine. The refrigeration machine for refreshing the red wine and automatically pouring the wine comprises a shell, an ultraviolet protection hollow glass door in the front surface of the shell, a sealed wine container in the shell, a refrigerating system, a temperature setting and control system and a power switch. The refrigeration machine is characterized in that the shell is internally provided with more than two sets of devices for preserving wine and automatically pouring the wine which press inert gases to the sealed wine container; the inert gas in a gas bottle of the device is argon gas or nitrogen gas; a pressure reducing valve matched with the gas bottle is a constant-pressure type pressure reducing valve, and the machine is further provided with a gas-injecting and wine-pouring control system which comprises a combined type gas control electromagnetic valve and a wine-pouring control electromagnetic valve. The invention solves the difficult problems of retaining the red wine fresh, guaranteeing the quality, preserving the taste and mellow for a long time and automatically pouring the wine without opening a container cork, and realizes the purpose of quantificationally wine-pouring and non-quantificationally wine-discharging, and has the characteristics of small volume of the whole machine, light weight and simple operation.
Owner:浙江爱得沃电子科技有限公司

Method and device for storing wine

The present invention relates to a method for storing wine and its device, in particular, it relates to a method for implementing long-term storage of wine by adopting double-layer sealing technique and its related device. Said method includes the following several steps: holding the wine to be stored in a wine bottle; making a jointing compound cylinder be cover-mounted in the bottle neck or bottle shoulder position; and filling adhesive into the combined face of jointing compound cylinder and bottle neck or bottle shoulder; making the jointing compound isolating cap be cover-mounted on the bottle cap or bottle cork; then utilizing a special-purpose jointing compound injector to inject the jointing compound for sealing said wine bottle cap or wine bottle cork. The invented device includes a device for storing wine and a special-purpose injector.
Owner:皮喜田

Lightweight multifunctional composite material prepared from polyurethane and cork particles as well as preparation method and application of lightweight multifunctional composite material

ActiveCN114133759ATo keep warmPlay sound absorptionNatural resinCork
The invention discloses a lightweight multifunctional composite material prepared from polyurethane and cork particles, and a preparation method and application thereof, and belongs to the technical field of vibration reduction, energy absorption, heat insulation, heat preservation, sound absorption and noise reduction. According to the lightweight multifunctional composite material, cork particles are used as a main raw material, polyurethane is used as a foaming agent, according to different volume parts, stirring, heating and standing processes are assisted, and then high-temperature fumigation is carried out through a constant-temperature box, so that the cork particles are expanded to release natural resin to enhance the bonding effect of the cork particles and the polyurethane; therefore, a series of lightweight multifunctional composite materials prepared from polyurethane and cork particles are prepared. Through the synergistic effect between the cork particles and the polyurethane, the multifunctional composite material has good performance in the aspects of vibration reduction, energy absorption, heat insulation, heat preservation, sound absorption and noise reduction. The preparation method provided by the invention is simple in process and easy to regulate and control, can realize preparation of various multifunctional materials, does not need special processing equipment in the processing process, is low in cost, and has industrial popularization and application significance.
Owner:XI AN JIAOTONG UNIV

Cork composite thermal insulation powder coating material, preparation method thereof and coating

InactiveCN112592641AWith elastic shock absorptionWith insulationLiquid surface applicatorsAnti-corrosive paintsMeth-Cork
The invention discloses a cork composite thermal insulation powder coating material, a preparation method thereof and a coating. The coating is prepared from the following raw material components: 15-75.5% of bisphenol A epoxy resin, 14.2-14.5% of a curing agent, 2-60% of cork, 3.08-3.20% of polybutyl acrylate, 0.4-0.41% of 2-methylimidazole, 0-1% of a pigment, 0-1% of a defoaming agent and 0-20%of an inorganic filler; And the cork is one or a mixture of more of natural cork powder, puffed semi-carbonized softened cork, decolorized cork and colored cork. The cork composite powder coating material with light weight, corrosion resistance, heat insulation and aging resistance is prepared, the coating material is applied to a metal object, the high strength of the metal object is kept, the attractiveness, heat preservation and comfort of cork furniture are improved, and the advantages of metal and cork are complemented and integrated.
Owner:郑林义

Habitat processing method and application of scutellaria baicalensis

The invention discloses a habitat processing method and an application of scutellaria baicalensis. The method comprises the following steps that (1) in a step of knocking at a first time, the harvested fresh scutellaria baicalensis is aired and a cork on the surface of the scutellaria baicalensis is knocked off; (2) in a step of knocking at a second time, the scutellaria baicalensis processed in the step (1) is aired and knocked off until the scutellaria baicalensis is yellowish-brown, that is, a chromatic value of a Munsell color system is 5Y6 / (6-8) or 7.5YR5(4-8); (3) in a step of knocking at a third time, the scutellaria baicalensis processed in the step (2) is aired and knocked off until the scutellaria baicalensis is golden-yellow, that is, the chromatic value of the Munsell color system is 5Y8 / (8-12), 2.5Y7 / (8-10), 2.5Y8 / 10 or 5Y7 / 8; and (4) in a step of knocking at a fourth time, the scutellaria baicalensis processed in the step (3) is aired and knocked off until the scutellaria baicalensis is yellowish white, that is, the chromatic value of the Munsell color system is 5Y8 / (4-6) or 2.5Y8 / (4-8). The invention also provides an application of a method in medicinal material habitat processing. According to the method, the contents of main medicinal compositions including baicalin, baicalein and wogonoside of the scutellaria baicalensis medicinal material can be obviously improved, a good drug property of the medicinal materials can be formed, the specification grades of the medicinal material commodity are improved, and the grading of the medicinal materials is easily carried out.
Owner:国药集团承德药材有限公司 +1

Preparation method and application of cork prepolymer and construction method of cork floor

The invention discloses a preparation method and an application of a cork prepolymer and a construction method of a cork floor, and belongs to the field of cork floors. Cork or oak bark is used as a raw material to prepare cork particles, and the cork particles are treated to obtain the cork prepolymer. The preparation method comprises the following steps: stirring and mixing the cork particles and polyurethane to obtain a mixed material; carrying out baking hardening in a baking channel and normal-temperature hardening on the mixed material to harden the cork particles and the polyurethane into an agglomerated polymer; stirring, crushing and separating the polymer, adding a single-component rigid polyurethane adhesive, and uniformly stirring and mixing; after stirring is completed, carrying out baking hardening in a baking channel and normal-temperature hardening again to enable the polymer to be in an agglomerated state; and then stirring and crushing the polymer again, and crushingthe blocks into single particles to obtain the granular cork prepolymer. According to the preparation method, the cork particles are firstly treated to obtain the cork prepolymer, and the surface of the cork prepolymer is fully coated with polyurethane, so that the hardness and the impact strength of cork can be improved.
Owner:聊城森盟工艺品有限公司

A method for separating and purifying suberone from sweet tea old leaves

The invention relates to the technical field of separation and purification of natural products, in particular to a method for extracting and isolating suberin from sweet tea old leaves, comprising the following preparation steps: (1) taking sweet tea old leaves as raw materials, drying and dehydrating, and pulverizing to obtain tea powder (2) Take some tea powders from step (1) and add them to 95% ethanol for constant temperature extraction; after suction filtration, repeat the extraction of the filter residue three times, and combine the extracts; (3) Concentrate the extracts in step (2) under reduced pressure until there is no alcohol smell, the ethanol extract of sweet tea old leaves is obtained; (4) the extract of step (3) is dispersed in distilled water, and extracted three times with an equal amount of petroleum ether. Merge the petroleum ether extracts, concentrate under reduced pressure and distill the petroleum ether to obtain the petroleum ether phase extract; (5) take the petroleum ether phase extract from step (4) and subject it to silica gel column chromatography, using a certain volume ratio of petroleum ether and ethyl acetate Perform gradient elution to collect effective fractions; (6) Concentrate the effective fractions in step (5) under reduced pressure to remove the solvent, recrystallize and dry to obtain pure suberone. The method for extracting, separating and purifying suberin is simple and easy, has high separation efficiency, low energy consumption and less pollution, and opens up a new way for the utilization of old sweet tea leaves.
Owner:CENT SOUTH UNIV

Construction method and detection method of hplc characteristic map of Cortex Phellodendri

The invention relates to a construction method and a detection method of an HPLC characteristic map of Cortex Phellodendri. The construction method includes: preparation of reference substance solution: preparing Phellodendron phellodendron reference substance reference solution, berberine hydrochloride and phellodendron hydrochloride reference substance reference substance solution; preparation of test product solution: preparing phellodendron phellodendron medicinal material for test solution, decoction for testing Product solution; high-performance liquid chromatography test: draw described contrast medicinal material reference substance solution, contrasting substance reference substance solution, medicinal material need testing solution, decoction need testing solution, inject liquid chromatograph, compare gained medicinal material need testing collection of illustrations With the spectrum of the decoction test sample, determine the common peak of water solubility, and obtain the HPLC characteristic spectrum of Phellodendron Phellodendri. The HPLC characteristic spectrum obtained by this construction method can not only qualitatively and quantitatively analyze the quality of Cortex Phellodendri, but also use it as a reference to reflect the quality of Phellodendron Phellodendri standard decoction.
Owner:GUANGDONG YIFANG PHARMA
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