26 results about "Myrcene" patented technology

The present application relates to a fragrance composition reproducing the fragrance of white lotus and a skin external composition and a fragrance product containing the fragrance composition reproducing the fragrance of white lotus, and particularly relates to a fragrance composition reproducing the fragrance of white lotus with excellent preference by adding 2-phenylethanol to pentadecane, p-xylene, heptadecane, sabinene, limonene, myrcene, alpha-terpineol, etc. analyzed by SPME method. The fragrance composition provided by the present application contains pentadecane, p-xylene, heptadecane, sabinene, limonene, myrcene, alpha-terpineol, etc. which are main components of the fragrance of white lotus, and also contains 2-phenylethanol, thereby reproducing the fragrance of white lotus and improving the preference of the fragrance.

The present invention addresses the problem of providing a low-alcohol beer-like beverage having a long duration of good flavor. [Solution] A low-alcohol beer-like beverage containing a wort fermentation broth, containing a highly hydrophobic aroma component having a LogP of 3.0-4.3 at a concentration of 150-400 ppb, and having an alcohol concentration of 4 v / v% or less, the highly hydrophobic aroma component containing a terpene-based compound and an ester-based compound, the terpene compound comprises at least one selected from linalool and myrcene, the ester compound comprises ethyl caprylate, and the ratio of the terpene compound to the ester compound is 0.04-0.2.

The application discloses a high-softening-point terpene styrene resin and a preparation method thereof, and belongs to the technical field of polymer materials. The technical scheme is as follows: a high-softening-point terpene styrene resin is prepared by the following technical scheme: a preparation method of a high-softening-point terpene styrene resin comprises the following steps: S1, mixing styrene and myrcene to obtain a mixed monomer; S2, uniformly mixing butyl acetate and a catalyst at a temperature of less than or equal to 15 DEG C; S3, adding the mixed monomer dropwise when the temperature of the system in step S2 is less than or equal to 10 DEG C, and after the dropwise addition is completed, heat preservation and discharging are carried out to obtain a polymerization liquid; and S4, distilling the polymerization liquid after the polymerization liquid is washed to neutral with hot water to obtain the high-softening-point terpene styrene resin. The combination of styrene, myrcene and butyl acetate can form the terpene styrene resin with higher molecular weight and longer molecular chain, so that the softening point of the terpene styrene resin is greater than or equal to 130 DEG C.

This invention belongs to the field of microbial metabolic engineering and biotechnology applications, specifically relating to an engineered bacterium for synthesizing monoterpenoid compounds, its construction method, and its applications. The construction method involves using *Hansenula polymorpha* as a host, regulating the mevalonate pathway in its cytoplasm, and overexpressing monoterpene synthase to obtain the engineered bacterium; or, overexpressing monoterpene synthase and the mevalonate pathway in peroxisomes to obtain the engineered bacterium. The engineered bacterium constructed in this application can efficiently synthesize monoterpenoid compounds such as geraniol, β-myrcene, and dextrorotatory borneol.

The present invention provides a distilled spirit having an orange aroma, and a method for producing the same. [Solution] In a distilled spirit, an extract of juniper berry fruit is added, and the concentration of myrcene per 100 v / v% alcohol concentration is adjusted to 30 ppm or more, the concentration of limonene per 100 v / v% alcohol concentration is adjusted to 15 ppm or more, the concentration of α-pinene per 100 v / v% alcohol concentration is adjusted to 65 ppm or less, and the concentration of terpinen-4-ol per 100 v / v% alcohol concentration is adjusted to 25 ppm or less.

The invention relates to polymer cement waterproof mortar and a waterproof reinforcement structure of a building facade, the polymer cement waterproof mortar contains a powder component and a liquid component, and the mass ratio of the powder component to the liquid component is (4-5): 1; the powder component comprises Portland cement, ultra-white feldspar powder, metakaolin and aggregate; the liquid material component comprises a styrene-acrylic emulsion, an associative thickening agent and water; the styrene-acrylic emulsion is prepared from the following raw materials: styrene, acrylic ester, N-hydroxymethyl acrylamide, allyl (tert-butyl) dimethyl silicon, myrcene, a buffering agent, an initiator, a silane coupling agent, an emulsifier, a defoaming agent, a sterilizing agent and water. The polymer cement waterproof mortar provided by the invention has good mechanical properties, impermeability and weather resistance.

The application provides a synthesis method of high-purity high-myrcene, comprising the following steps: carrying out [2+2] cycloaddition reaction of 8-methyl-2,7-nonadiene-4-ketone and ethenone to obtain a beta-lactone intermediate, and carrying out retro-cycloaddition reaction of the beta-lactone intermediate to obtain high-purity high-myrcene product. The synthesis route of the application is novel and short, high-myrcene is prepared simply and efficiently by taking simple and easily obtained 8-methyl-2,7-nonadiene-4-ketone and ethenone as raw materials through two-step reaction of cycloaddition and ring-opening, the overall yield of the route is high, compared with the traditional process of Grignard addition-dehydration method, the content of the target isomer is significantly improved, and the development of high-myrcene downstream derivatives is facilitated.

The invention belongs to the technical field of analysis and detection of natural perfume, and particularly relates to a method for simultaneously detecting six chemical substances in natural perfume. The detection method comprises the following steps: (1) carrying out mixed extraction on natural perfume by using an internal standard extraction agent to prepare a sample solution to be detected; (2) carrying out gas chromatography-mass spectrometry analysis on the sample solution to be detected, and respectively obtaining the contents of ethyl acrylate, pyridine, myrcene, longifolenone, benzophenone and methyleugenol according to the standard curve and the mass spectrum; a chromatographic column for the gas chromatography-mass spectrometry analysis is a weak-polarity stationary phase chromatographic column. According to the method disclosed by the invention, the to-be-detected target object can be efficiently extracted by selecting the styrax propionate and the dichloromethane as internal standard extraction agents, accurate analysis of the six chemical substances is realized by combining a weak-polarity stationary phase chromatographic column, matrix interference is eliminated, and the detection accuracy is high. And simultaneous determination of the six chemical substances in different dosage forms such as tincture, extract, essential oil, absolute oil and the like and the natural perfume with matrix components is realized.

The invention discloses a high-softening-point terpene styrene resin and a preparation method thereof, and belongs to the technical field of high polymer materials, and the key point of the technical scheme is that the high-softening-point terpene styrene resin adopts the following technical scheme: the preparation method of the high-softening-point terpene styrene resin is used for preparing the high-softening-point terpene styrene resin. Comprising the following steps: S1, mixing styrene and myrcene to obtain a mixed monomer; s2, uniformly mixing butyl acetate and a catalyst at the temperature of less than or equal to 15 DEG C; s3, when the temperature of the system in the step S2 is less than or equal to 10 DEG C, dropwise adding a mixed monomer, and after dropwise adding, carrying out heat preservation and discharging to obtain a polymer solution; s4, the polymer liquid is washed with hot water to be neutral and then distilled, and the high-softening-point terpene-styrene resin is obtained.According to the method, styrene, myrcene and butyl acetate are matched, the terpene-styrene resin higher in molecular weight and longer in molecular chain can be formed, and the softening point of the terpene-styrene resin is made to be larger than or equal to 130 DEG C.

The application provides a Chinese trichopoda japonica attractant and a preparation method and application thereof, and belongs to the technical field of biological pest control. The active ingredient of the Chinese trichopoda japonica attractant is composed of volatile substances of potentilla chinensis, and the volatile substances include (Z)-3-hexen-1-ol 10-15 parts, gamma-terpinene 10-20 parts, trans-beta-myrcene 60-70 parts and nerolidol 0.5-1 part in volume fraction. The Chinese trichopoda japonica attractant as the effective component is combined with a diluent to further obtain an attractant preparation. The volatile substances in the potentilla chinensis are used to perform olfactory behavior response on the Chinese trichopoda japonica and are applied, the obtained attractant or attractant preparation has obvious attracting effect, is harmless to other natural enemies and is environment-friendly, and provides a new reference means for biological control.

The invention relates to a process for preparing a polyisoolefin homo- or copolymer, preferably selected from butyl rubber, polyisobutylene and poly(isobutylene-co-para methyl styrene), the process comprising the step of polymerizing at least one isoolefin monomer and optionally at least one copolymerizable monomer, preferably multiolefin monomer, in the presence of a preformed polymeric stabilizer. The preformed polymeric stabilizer comprises repeating units derived from styrene and repeating units having pendant linear or branched saturated alkyl groups with at least 3 carbon atoms. Preferably, the repeating units with the pendant alkyl groups are derived from monoterpenes, especially myrcene or ocimene, or sesquiterpenes, especially farnesene, and subsequently hydrogenated. The preformed polymeric stabilizer advantageously stabilizes the slurry of the polyisoolefin homo- or copolymer, preferably selected from butyl rubber, polyisobutylene and poly(isobutylene-co-para methyl styrene), that is formed during polymerization in a solvent.

The invention belongs to the field of food additives, and particularly discloses a blended houttuynia cordata flavor essence and a preparation method thereof.The blended houttuynia cordata flavor essence comprises, by mass, 3%-6% of 2-decenal, 2%-5% of 2-nonenal, 2%-6% of 2, 4-dihydroxy-2-methyl-1, 3-pentanedione, 1%-3% of 2, 4-dihydroxy-2, 4-pentanedione, 1%-3% of The formula comprises the following components in percentage by weight: 1%-3% of 1, 4-decadienal, 3%-5% of 2-decanone, 1%-3% of lauric aldehyde, 1%-2% of myrcene, 4%-7% of beta-caryophyllene, 0.5%-1.5% of cis-3-hexene-1-ol, 2%-3% of 2-hexenal, 2%-5% of linalool, 0.5%-1.5% of 1-octylene-3-ol, 0.5%-1.5% of perillaldehyde, 2%-3% of 2-amyl furan, 1%-3% of eucalyptus oil, 1%-2% of eugenol and the balance of water. The composition is prepared from 0.5%-1.5% of methyl dihydrojasmonate, 3%-5% of cis-6-nonene-1-ol, 1%-3% of 2-acetylpyridine, 1%-3% of cis-6-nonene-1-ol, 1%-3% of 2-acetylpyridine, 1%-3% of cis-6-nonene-1-ol, 1%-3% of vetiver oil and the balance of caprylic capric triglyceride. The blended houttuynia cordata flavor essence is prepared from the monomer spice for food, and has the characteristics of obvious characteristic fragrance, strong natural feeling, long fragrance retention time and high temperature resistance.

A kind of pinene base elastomer and its preparation method belong to the technical field of polymer materials. It is a kind of two or three copolymer prepared by copolymerization of pinene, conjugated diene and styrene, ethylene catalyzed by rare earth catalyst. The content of pinene in two or three copolymer is 5% to 100% by mole percentage, and the number average molecular weight is 1×10 4 ~80×10 4 . By changing the ligand and central metal of rare earth catalyst, the cis-1,4 selectivity of pinene and conjugated diene polymerization is 2% to 98%, the trans-1,4 selectivity is 2% to 98%, and the 3,4 selectivity is 2% to 93%. The polystyrene block of styrene polymerization can be syndiotactic or random polystyrene. By using the rare earth catalyst with high tolerance and selectivity, the crude pinene separated from carbon five fraction is directly polymerized, and the controllable copolymerization of pinene, ethylene, conjugated olefin including butadiene, isoprene, myrcene and styrene is realized, and pinene base elastomer with controllable composition, sequence structure, stereo configuration and molecular weight is prepared. It has important significance for efficient utilization of carbon five fraction and development of new materials.

The invention belongs to the technical field of traditional Chinese medicinal material fingerprint spectrum and primitive identification, and particularly relates to a construction method of flos magnoliae fingerprint spectrum and a primitive identification method. According to the method, volatile oil in flos magnoliae is taken as a detection object, and a stable and repeated gas phase detection means is firstly established and can be used for constructing a fingerprint spectrum of the flos magnoliae. Further, in combination with a multi-dimensional chemical pattern recognition technology (systematic clustering analysis / HCA, principal component analysis / PCA, partial least squares-discriminant analysis / OPLS-DA and VIP analysis), it is confirmed that myrcene and camphor in the atlas can be used as chemical markers for primitive identification. The method is simple and easy to operate, and has important significance for improving the quality control of the magnolia flower medicinal material.

The application provides a star-shaped mixed-arm liquid styrene-butadiene rubber and a preparation method and application thereof. The molecular formula of the star-shaped mixed-arm liquid styrene-butadiene rubber is S-(PSB) n -(PMF) m , S is a central core formed by polymerization of a polyvinyl aromatic coupling agent, PSB is a butadiene and styrene copolymer segment, and PMF is a myrcene and farnesene copolymer segment; the butadiene and styrene copolymer segment and the myrcene and farnesene copolymer segment are connected in a radial manner from the central core to form a mixed arm. The liquid styrene-butadiene rubber has good compatibility, stability, adhesion and high branching degree.

The application discloses orchid-flavor instant Pu'er ripe tea and a preparation method thereof. The application uses specific orchid and Pu'er ripe tea, optimized extraction parameters (ethanol concentration, solid-liquid ratio and extraction time) and selective extraction and retention of ingredients by a spray drying process, so that the product is enriched with specific terpenes, esters and other aroma substances (such as big root myrcene D and ethyl hexanoate) of Cymbidium goeringii and flavor ingredients (such as amino acids and soluble sugar) of Pu'er tea, and the proportions of the ingredients are coordinated. Technical advantages: the product prepared by the method has orchid fragrance, and has the functions of antibiosis and antioxidation. The product has the functions of the Pu'er tea, and has good solubility and quality stability. The product is obviously different from traditional instant Pu'er ripe tea, and the drinking value and market recognition of the product are improved.

The invention discloses a preparation method of a northern dance Yu hot soup flavor essence composition. The preparation method comprises the following steps: firstly, respectively preparing a beta-myrcene precursor, a dimethyl sulfide precursor and glucosyl anisd; then trehalose-beta-cyclodextrin is used as a carrier for inclusion of the product, 1, 8-cineole and linalool, and a composite precursor aroma component is obtained; and finally, by taking the ferulic acid modified propylene glycol alginate-purple perilla seed polysaccharide as a wall material and dispersing a mixture of the composite precursor aroma component and the remaining flavor components in a solvent as a core material, carrying out electrostatic spray drying to obtain a finished product. According to the invention, through precursor aroma preparation, multi-stage inclusion and modified wall material embedding technologies, the volatility of flavor molecules is reduced, unpleasant odor is masked, and the flavor coordination and stability are improved. When the finished product is applied, the flavor is slowly and continuously released, the spicy, warm and moist feeling and mellow and lingering feeling of the North Dance Fu spicy soup can be enhanced, flavor levels are synergistically enriched, and the extreme flavor experience of the North Dance Fu spicy soup is restored to the greatest extent.

The present invention relates to compositions for use in the treatment and / or prevention of chronic musculoskeletal pain, including chronic lumbodorsal pain (CLBP), chronic non-specific lumbodorsal pain (CNSLBP), osteoarthritis and / or other chronic musculoskeletal pain affecting body parts or systems, such as joints, tendons, ligaments, bones and / or muscles, the composition comprises delta-9-tetrahydrocannabinol (THC), alpha-bisabolol, guaiacol, and beta-caryophyllene and at least one selected from the group consisting of linalool, alpha-humulene, nerolidol, caryophyllene oxide, alpha-pinene, camphene, beta-pinene, beta-myrcene, limonene, eucalyptol, ocimene, gamma-terpinene, isoterpinene, alpha-terpinene, p-cymene, and at least one selected from the group consisting of linalool, alpha-humulene, nerolidol, caryophyllene oxide, alpha-pinene, camphene, beta-pinene, beta-myrcene, limonene, eucalyptol, ocimene, gamma-terpinene and additional terpenes of isopulegol and geraniol. The invention also relates to pharmaceutical formulations comprising such compositions for use in the treatment and / or prevention of chronic musculoskeletal pain, including chronic lumbodorsal pain (CLBP), chronic non-specific lumbodorsal pain (CNSLBP), osteoarthritis and / or other chronic musculoskeletal pain affecting body parts or systems, such as joints, tendons, ligaments, bones and / or muscles. The present invention also relates to methods of treating and / or preventing chronic musculoskeletal pain, including chronic lumbodorsal pain (CLBP), chronic non-specific lumbodorsal pain (CNSLBP), osteoarthritis and / or other chronic musculoskeletal pain affecting body parts or systems, such as joints, tendons, ligaments, bones and / or muscles. The invention also relates to kits comprising such compositions.

This beverage offers a clean finish, enhanced or improved fruity, liqueur-like complexity in the middle, and reduced cloying sweetness. [Solution] The above problem is solved by providing a beverage containing 0.01 mg / L or more of myrcene and 0.1 mg / L or more of bergamol.

The invention relates to a compound botanical attractant for cicada punctata and an application method of the compound botanical attractant, and the compound botanical attractant contains eudesmol and alpha-farnesene, and preferably further contains myrcene. The eucalyptol is used as a main volatile component to simulate a smell signal released by the wax cicada in the process of feeding a host plant, so that the directional behavior of the wax cicada can be triggered; alpha-farnesene and myrcene are typical terpenoids and can enhance the recognition sensitivity of the wax cicada on information odor, and the compound attractant remarkably enhances the aggregation and locking behaviors of the wax cicada. According to the invention, plant-derived natural volatile matters are adopted, so that the problems of pesticide residues and resistance caused by chemical pesticides are avoided. The slow-release bag and the insect sticking adhesive tape are low in cost, simple and convenient to operate and suitable for large-area popularization.

To provide a low-alcohol beer-taste beverage excellent in beer-like flavor at the top and enhanced in complex taste derived from brewing.SOLUTION: A non-alcohol beer-taste beverage comprising an aroma composition comprising myrcene in an amount of 0. 0475ppb or more, β - ionone in an amount of 0. 000475ppb or more, linalool in an amount of 5. 8125ppb or more, citronellol in an amount of 0. 7025ppb or more, geraniol in an amount of 0. 115ppb or more, and α - eudesmol in an amount of 0. 09ppb or more.SELECTED DRAWING: None

Disclosed is a method for producing a multi-unsaturated hydrocarbon by isomerizing myrcene in the presence of CuCl as catalyst.

The invention belongs to the field of drugs for inflammatory dermatosis, and discloses an application of myrcene in preparation of drugs for inflammatory dermatosis, which comprises the following steps: combining a mouse AD model (DNCB) with human epidermal keratinocytes (NHEK) and mouse macrophages (RAW264.7); the improvement effect of the MYR is evaluated by adopting histology and immunofluorescence technologies; by integrating transcriptomics and proteomics analysis, the molecular mechanism of MYR for relieving AD symptoms is clarified, and the causal relationship is verified by using a pharmacological inhibitor. The conclusion of the invention is as follows: Myrcene alleviates AD sample inflammation by inhibiting FAK / Src-YAP / TAZ axis. A repeatable mechanism framework is established by the data, and the natural monoterpenoids are associated with biomechanical-nuclear signal transduction and innate immune regulation in AD.

The invention relates to a preparation method of myrcene. Specifically, the invention provides a calcium oxide-copper / aluminum oxide catalyst columnar tube, and the calcium oxide-copper / aluminum oxide catalyst columnar tube is prepared by the following steps: immersing a columnar hollow aluminum oxide tube in a mixed aqueous solution of copper nitrate and calcium nitrate, taking out, dehydrating, roasting, then introducing hydrogen into the tube, and heating, thereby obtaining the calcium oxide-copper / aluminum oxide catalyst columnar tube. The calcium oxide-copper / aluminum oxide catalyst columnar tube is obtained. The calcium oxide-copper / aluminum oxide catalyst can effectively catalyze the cracking of beta-pinene to generate myrcene, so that the application value of myrcene is improved.

To provide a low-alcohol beer-flavored beverage having an excellent beer-like flavor and enhanced complex flavor derived from brewing at the top. [Solution] A non-alcoholic beer-flavored beverage containing an aroma composition including 0.0475 ppb or more of myrcene, 0.000475 ppb or more of β-ionone, 5.8125 ppb or more of linalool, 0.7025 ppb or more of citronellol, 0.115 ppb or more of geraniol, and 0.09 ppb or more of α-eudesmol.

This invention discloses a dried tangerine peel essential oil, the active ingredients of which include the following components by weight: D-limonene 30.0-80.0%, γ-terpinene 5.0-15.0%, β-myrcene 0.5-8.0%, α-pinene 0.5-8.0%, and β-pinene 0.2-5.0%. Simultaneously, this invention discloses a method for preparing dried tangerine peel essential oil using supercritical CO2 fluid extraction, comprising: selecting dried tangerine peel raw material, removing impurities, drying at 50-60℃ to a moisture content of 8%-12%, pulverizing and sieving, and collecting 20-60 mesh dried tangerine peel powder for later use; loading the pretreated dried tangerine peel powder into an extraction vessel, and introducing CO2 for supercritical fluid extraction; sequentially passing the extracted CO2 fluid carrying essential oil through a primary separation vessel and a secondary separation vessel for depressurization and separation, collecting the dried tangerine peel essential oil product at the bottom of the secondary separation vessel; dehydrating and drying the obtained dried tangerine peel essential oil, and then filtering it through a microporous membrane to obtain refined dried tangerine peel essential oil. By optimizing parameters such as raw material particle size, extraction pressure, temperature, and time, this invention achieves an extraction rate of 2.5%–3.2% for tangerine peel essential oil.