38 results about "Cymenes" patented technology

A pest control composition includes from about 4 wt % to about 10 wt % of sodium lauryl sulfate; one or more C5 to C9 hydrotropic salt; from about 1 wt % to about 10 wt % of one or more active ingredients selected from the group consisting of corn mint oil, peppermint oil, spearmint oil, rosemary oil, thyme oil, citronella oil, clove oil, cedarwood oil, cinnamon oil, geranium oil, eugenol, 2-phenylethyl propionate, menthol, menthone, thymol, carvone, camphor, methyl salicylate, p-cymene, linalool, geraniol, cinnamyl acetate, cinnamic alcohol, cinnamaldehyde, citronellol, eucalyptol / 1,8-cineole, alpha-pinene, bornyl acetate, gamma-terpinene, and combinations thereof; and from about 60 wt % to about 95 wt % of water. The pest control composition exhibits a water peak in a 2H spectrum having a width encompassing 90% of the area of the entire water signal of about 50 Hz or more, as determined by the 2H NMR Method.

The invention relates to the use of herbal preparation, characterized by presence of 4 dominant compounds (carvacrol a from about 35% to about 50%, γ-terpinene from about 10% to about 30%, thymol from about 10% to about 25%, p-cymene from about 8% to about 20%, as expressed in % of total peak area in GC / MS chromatogram), obtained by mixing at least two essential oils from species selected from the group of genera Satureja L., Origanum L. and Thymus L., to prepare food supplement or medicament for treatment and prevention of gastric Helicobacter pylori infection in humans. The mixture may be placed on liquid or solid carrier and capsulated in non gastro-resistant capsules. The invention also relates to dosage regiment of herbal preparation for treatment and prevention of patients with Helicobacter pylori infection which leads to successful eradication of bacteria without any side-effects.

The invention relates to the technical field of traditional Chinese medicine detection, in particular to a method for determining the content of various components in blumea balsamifera oil. According to the method, a gas chromatography-mass spectrometry (GC-MS) technology is adopted, and chromatographic conditions are as follows: a chromatographic column is an SH-Stabilwax (30m * 0.32 mm, and the film thickness is 0.25 [mu] m) capillary column; the temperature of a sample inlet is 230 DEG C; the split ratio is 10: 1; the sample size is 1 microliter; the mass spectrum conditions are as follows: the ion source temperature is 200 DEG C; the interface temperature is 230 DEG C; the ionization mode is electron impact ion (EI); the detection voltage is 0.2 KV; the solvent is delayed for 2 minutes; the mass number scanning range is 30 to 400 amu; and SIM mode. According to the method disclosed by the invention, the contents of alpha-pinene, camphene, beta-pinene, limonene, p-cymene, camphor, alpha-coumarin, linalool, bornyl acetate, beta-caryophyllene, myrtenal, alpha-caryophyllene, L-borneol, perillaldehyde, caryophyllene oxide, guaiacol, beta-eudesmol and xanthoxylin in the blumea balsamifera oil can be simultaneously determined; the method provided by the invention has good precision, repeatability and stability, and the quality consistency of the blumea balsamifera oil can be quickly, accurately and effectively evaluated through detection of multiple components.

This invention relates to the field of grain storage technology, and in particular to a natural plant essential oil insecticide composition, its preparation method, and its application. The natural plant essential oil insecticide composition comprises a main active ingredient and co-active ingredients. The main active ingredient includes cinnamaldehyde, allyl isothiocyanate, and cuminaldehyde. The co-active ingredients include 1,8-cineole, β-phellandrene, γ-terpinene, p-cymene, eugenol, α-pinene, linalool, and limonene. By volume percentage, the insecticide composition contains: cinnamaldehyde 15-40%, allyl isothiocyanate 20-40%, and cuminaldehyde 0.5-16.5%. The insecticide composition provided by this invention is made from natural plant essential oils, is stable, safe, environmentally friendly, does not pollute grains, and has an aromatic odor. It has a strong insecticidal effect on pests such as rice weevils in grains and has good application prospects in the field of grain storage.

A pest control composition having from about 4 wt % to about 10 wt % of sodium lauryl sulfate, one or more C5 to C9 hydrotropic salt, from about 1 wt % to about 10 wt % of an active ingredient selected from the group consisting of corn mint oil, peppermint oil, spearmint oil, rosemary oil, thyme oil, citronella oil, clove oil, cedarwood oil, cinnamon oil, geranium oil, eugenol, 2-phenylethyl propionate, menthol, menthone, thymol, carvone, camphor, methyl salicylate, p-cymene, linalool, geraniol, cinnamyl acetate, cinnamic alcohol, cinnamaldehyde, citronellol, eucalyptol / 1,8-cineole, alpha-pinene, bornyl acetate, gamma-terpinene, and combinations thereof, and from about 60 wt % to about 95 wt % water. The pest control composition can exhibit a tan delta-1 value at a frequency of 1 Hz of from about 0.1 to about 2.

Disclosed is a compound essential oil for improving dull skin, which comprises the following components: oleic acid, linoleic acid, palmitic acid, stearic acid, limonene, α-pinene, linalool, palmitoleic acid, eicosanoic acid, squalene, α-copaene, cis-11-eicosenoic acid, β-pinene, trans-caryophyllene, 3-thujene, camphene, behenic acid, myristic acid, p-cymene, (+)-δ-cadinene, menthol, linolenic acid, caprylic acid, menthone, capric acid, sabinene, and myrcene. The compound essential oil has excellent effects of skin whitening, brightening, and moistening.

The invention discloses laurel essential oil with anti-aging activity and application of the laurel essential oil. According to the method, laurel essential oil is used for acting on caenorhabditis elegans to verify the aging delaying effect of the caenorhabditis elegans, after the caenorhabditis elegans are counted and subjected to synchronization treatment, a life determination test of the caenorhabditis elegans is carried out, a blank control group, a DMSO solvent group, a positive drug group and a laurel essential oil experimental group are set respectively, a survival curve is drawn, and statistical analysis is carried out. Results show that the lifetime of nematodes in a laurel essential oil treatment group is remarkably prolonged, and the anti-aging effect of the laurel essential oil treatment group is superior to that of a Meanwhile, target function analysis on the laurel essential oil shows that the essential oil regulates and controls senescence-related pathways. The further determination of the effect of monomer components in the laurel essential oil on delaying caenorhabditis elegans aging shows that p-cymene, methyleugenol, ocimene, linalool, sabinene, 4-terpene alcohol, terpinene and linalyl acetate show significant anti-aging activity.

This invention discloses an efficient method for preparing p-cymene ruthenium iodide dimer. The method uses ruthenium trichloride as the ruthenium source, propylterpinene as the ligand precursor, and an alcohol solvent as the reaction medium. The target product is synthesized efficiently through a two-step continuous reaction. First, ruthenium trichloride and propylterpinene are reacted at a specific temperature to generate a dichloro(p-cymene)ruthenium dimer intermediate. Then, an iodide aqueous solution is added for reflux reaction to complete the replacement of chloride ions with iodide ions. Finally, high-purity p-cymene ruthenium iodide dimer is obtained after simple post-processing. This invention innovatively uses propylterpinene instead of traditional phellandrene, significantly improving the stability and purity of the raw materials and reducing production costs. The one-step integrated process simplifies the operation process, avoids the risk of organic vapor exposure, and improves production safety. Optimized reaction parameters and material ratios achieve a product yield of up to 99.8%, and the process is adaptable to large-scale production requirements.

A kind of waste tire supercritical carbon dioxide pyrolysis production rich in p-cymene pyrolysis oil and high-value method and system.The present application is with supercritical carbon dioxide as reaction medium and the whole closed loop,non-combustion pyrolysis process of heat transfer mass carrier.System mainly includes three or more than above series operation's high-pressure supercritical carbon dioxide reactor,interwall heat recovery heat exchanger and specific physical solvent absorption tower.In this process, waste tire is heated to 350 DEG C~400 DEG C, pressure is higher than 9MPa CO2 supercritical state.Waste tire macromolecular network occurs high selectivity cleavage and in situ dehydrogenation aromatization reaction, can target generation yield up to 20% of total mass of waste tire high-value p-cymene, while relying on the solvation effect of supercritical fluid completely inhibits or in situ conversion of limonene generation, fundamentally solves the chemical engineering problem that both boiling points are extremely close and difficult to separate.

The invention relates to an acne-removing and repairing composition containing hydrolyzed sponge as well as a preparation method and application of the acne-removing and repairing composition, and belongs to the technical field of cosmetics. According to the present invention, the capryloyl glycine, the hydrolyzed sponge, the o-cymene-5-ol or the quaternary ammonium salt-73 and the schizophyllan are combined, such that the prepared composition has the excellent acne removing effect; meanwhile, the schizophyllan, the ebony seed oil and the sh-pentapeptide-1 are combined for use, so that the prepared composition has the effects of preserving moisture and locking water. The composition finished product prepared by the invention also has a moisturizing effect on the basis of an acne removing effect, so that the phenomenon that the skin barrier is weakened more or less when the components with the acne removing effect take effect is avoided, and further the skin becomes fragile, dry and sensitive; the stable internal environment of the skin is effectively maintained by maintaining the normal moisture content of the skin, the vicious circle of repeated'damage-oil production-acne growth-re-damage 'of the skin is fundamentally avoided, and efficient and deep repair of the skin is effectively realized.

Compound essential oil for alleviating skin aging and a preparation method therefor. The compound essential oil comprises the following components in parts by weight: 60-70 parts of oleic acid, 10-20 parts of linoleic acid, 10-20 parts of palmitic acid, 1-10 parts of stearic acid, 0.1-0.8 parts of cis-11-eicosenoic acid, 0.1-0.8 parts of α-copaene, 0.1-0.6 parts of linolenic acid, 0.1-0.5 parts of α-pinene, 0.1-0.5 parts of trans-caryophyllene, 0.1-0.5 parts of eicosanoic acid, 0.1-0.4 parts of linalool, 0.01-0.4 parts of (+)-δ-cadinene, 0.01-0.3 parts of limonene, 0.01-0.3 parts of behenic acid, 0.01-0.3 parts of palmitoleic acid, 0.01-0.3 parts of β-cedrene, 0.01-0.2 parts of tetracosanoic acid, 0.01-0.2 parts of β-pinene, 0.01-0.1 parts of 3-thujene, 0.01-0.1 parts of myristic acid, 0.01-0.1 parts of α-humulene, 0.01-0.1 parts of (-)-α-gurjunene, 0.01-0.1 parts of α-cedrene, and 0.01-0.1 parts of p-cymene. The compound essential oil is derived from natural and green raw materials, can effectively avoid side effects while treating skin aging, and thus has good safety.

The invention belongs to the technical field of cosmetics, and particularly relates to an o-cymene-5-alcohol-containing oil-control antibacterial composition as well as a preparation method and application of the o-cymene-5-alcohol-containing oil-control antibacterial composition. The oil-control antibacterial composition containing the ortho-cymene-5-ol is prepared from the following components in parts by mass: 5 to 15 parts of the ortho-cymene-5-ol, 1 to 10 parts of a black willow bark extract, 5 to 15 parts of a sake yeast extract, 1 to 10 parts of a camellia flower extract and 1 to 10 parts of an abelmoschus esculentus extract. According to the invention, a composite process of enzymolysis pretreatment and carbon dioxide supercritical extraction is adopted, so that active ingredients can be fully extracted on the premise of protecting the structures of the active ingredients from being damaged, and the antibacterial effect is remarkably enhanced; all the components are scientifically compounded, synergistic interaction of the oil control effect is achieved, through the synergistic effect of the components, the oil control rate is increased, the oil control effect is more durable, and the problems of greasy skin, floodlight and the like can be effectively solved.

This invention provides a citrus-flavored beverage that can reduce off-odors while improving flavor, and a technology that can suppress the odor caused by photodegradation of beverages. [Solution] The citrus-flavored beverage of the present invention contains 0.001 ppm to 1 ppm of o-cymene, and 0.001 ppm to 0.6 ppm of octanal, and / or 0.001 ppm to 0.2 ppm of decanal.

The utility model discloses a reaction kettle for synthesizing cymene, which relates to the technical field of cymene synthesis, and comprises a base, a reaction kettle body and a cavity jacket, the reaction kettle body is arranged above the base, the cavity jacket is arranged on the outer surface of the reaction kettle body, the top of the reaction kettle body is provided with a support frame, the top of the support frame is provided with a motor, and the motor is connected with the base. The output end of the motor penetrates through the supporting frame and is provided with a first rotating gear, the first rotating gear is meshed with a second rotating gear, hollow columns are rotationally connected to the interiors of the supporting frame and the reaction kettle body, and the interiors of the second rotating gears are fixedly connected with the outer surfaces of the hollow columns. A spiral blade is further arranged on the outer surface, arranged in the reaction kettle body, of the hollow column, a cleaning assembly for cleaning the interior of the reaction kettle body is arranged on the hollow column, the effect of cleaning the interior of the reaction kettle body is achieved through the cleaning assembly, and residues are prevented from being attached to the inner wall of the reaction kettle body.

A pest control composition includes (i) from about 4 wt% to about 10 wt% of sodium lauryl sulfate; (ii) one or more C5 to C9 hydrotropic salt; (iii) from about 1 wt% to about 10 wt% of one or more active ingredients selected from the group consisting of corn mint oil, peppermint oil, spearmint oil, rosemary oil, thyme oil, citronella oil, clove oil, cedarwood oil, cinnamon oil, geranium oil, eugenol, 2-phenylethyl propionate, menthol, menthone, thymol, carvone, camphor, methyl salicylate, p-cymene, linalool, geraniol, cinnamyl acetate, cinnamic alcohol, cinnamaldehyde, citronellol, eucalyptol / 1,8- cineole, alpha-pinene, bornyl acetate, gamma-terpinene, and combinations thereof; (iv) from 1% to 5% by weight of a solvent, wherein the solvent is a C1-C4 alcohol, and (v) 60 wt% to about 95 wt % of water. The pest control composition exhibits a water peak in a H spectrum having a width encompassing 90% of the area of the entire water signal of about 50 Hz or more, as determined by the H NMR Method. A method of controlling one or more weeds by contacting the said weeds with the pest control composition.

A pest control composition includes from about 4 wt % to about 10 wt % of sodium lauryl sulfate; a C5 to C9 hydrotropic salt; from about 1 wt % to about 12 wt % of one or more active ingredients chosen from corn mint oil, peppermint oil, spearmint oil, rosemary oil, thyme oil, citronella oil, clove oil, cedarwood oil, cinnamon oil, geranium oil, eugenol, 2-phenylethyl propionate, menthol, menthone, thymol, carvone, camphor, methyl salicylate, p-cymene, linalool, geraniol, cinnamyl acetate, cinnamic alcohol, cinnamaldehyde, citronellol, eucalyptol / 1,8-cineole, alpha-pinene, bornyl acetate, gamma-terpinene, or combinations thereof; and from about 60 wt % to about 95 wt % of water. The ratio of hydrotropic salt to sodium lauryl sulfate of from about 0.15 to about 0.9. The pest control composition exhibits a receding contact angle of less than 21 degrees.

This invention discloses a method for identifying tamarind maturity based on aroma markers. Through systematic research, this invention, for the first time, discovers the correlation between eight characteristic aroma markers and tamarind maturity: for unripe tamarind, phenylacetaldehyde, sec-butylamine, 5-acetoxymethyl-2-furfural, and tea spiroane; for ripe tamarind, 5-hydroxymethylfurfural, octanal, p-cymene, and styrene. This method is simple to operate, has an accuracy rate of ≥98%, and is suitable for tamarind harvesting and grading, quality evaluation, and processing quality control.

The present invention provides a beverage having a new value in terms of flavor, that is, a beverage in which the intensity of an ink-like aroma is reduced and the complexity of the flavor is enhanced, by utilizing p-cymene that increases in the beverage over time, and a method for producing the same.SOLUTION: The citrus-flavored beverage packed in a container has a p-cymene concentration of ≥ 125 μ g / L and an α - terpineol concentration of ≥ 12 times the p-cymene concentration.SELECTED DRAWING: None

The present invention aims to provide a plant vitality agent and a plant cultivation method that can promote plant growth and also impart to plants resistance to environmental stresses such as drought, extreme heat, and high sodium chloride concentrations. [Solution] A plant vitality agent comprising a plant extract, wherein the plant extract comprises a volatile terpene, and the volatile terpene is one or more selected from the group consisting of terpinen-4-ol, p-cymene, 1,8-cineole, linalool, and α-terpineol, and the weight percentage of the volatile terpene in the plant vitality agent is 0.003 to 90% by weight based on the weight of the plant vitality agent.

The invention discloses compound essential oil for improving varicosity and a preparation method of the compound essential oil. Comprising the following components: oleic acid, linoleic acid, octanoic acid, decanoic acid, limonene, palmitic acid, alpha-pinene, stearic acid, beta-pinene, gamma-terpinene, 3-cacumen biotae, p-cymene, menthol, menthone, 3-carene, linalool, docosanoic acid, myrcene, sabinene, trans-caryophyllene, isomenthone, citronellol, pulemenone, 4-terpinenol and eudesmol. The compound essential oil disclosed by the invention has excellent effects of improving leg vascular protrusion, obviously improving bluish violet, and relieving soreness and swelling, pain and itching of an affected part.

The invention belongs to the technical field of cosmetics, and relates to a composition with the effects of removing acnes and tightening pores and application of the composition, and the composition is prepared from Philionin, o-cymene-5-ol, bailionin, surfactin, madecassoside, jasmineshu and colloidal sulfur. According to the acne-removing composition, the paigonin, the surfactin, the madecassoside, the Jhenyeshu and the colloidal sulfur can relieve redness and swelling and stimulation caused by acne, the five components have a synergistic effect, and the paigonin, the o-cymene-5-ol and the colloidal sulfur have an antibacterial effect and can improve acne symptoms. The composition disclosed by the invention has an excellent acne removing effect and is mild and non-irritant in effect.

The invention relates to the technical field of skin external preparations, in particular to a colloidal sulfur-based acne-removing composition and a preparation method and application thereof.The colloidal sulfur-based acne-removing composition is at least prepared from, by weight, 10-50 parts of colloidal sulfur, 3-12 parts of ethyl lauroyl arginate hydrochloride, 3-12 parts of palmitoyl proline, 10-50 parts of glycolipid, 3-20 parts of kaolin, 3-12 parts of panthenol and 3-12 parts of o-cymene-5-ol. Colloidal sulfur is introduced to be compounded with specific bioactive components to prepare the composition capable of efficiently resisting acnes, removing blackheads, resisting inflammation and repairing barriers, and the composition can be subsequently added into face cleansing products for synergism.

The invention provides a slow-release diaphorina citri attractant which comprises an attracting part and a slow-release part, wherein the luring part is prepared from the following components in percentage by mass: 1 to 5 percent of p-cymene, 50 to 80 percent of citral, 1 to 5 percent of gamma-terpinene, 1 to 5 percent of linalool, 10 to 20 percent of gamma-terpinene, 1 to 5 percent of carene, 1 to 5 percent of terpinene, 1 to 5 percent of cis-3-hexenol, 1 to 5 percent of n-decanoic acid, 1 to 3 percent of methyl anthranilate and 1 to 2 percent of pyrazine; the slow-release part comprises an adsorption slow-release component and an azeotropic slow-release component. The invention further provides application of the slow-release diaphorina citri attractant, and the slow-release diaphorina citri attractant is used for trapping and killing diaphorina citri. The invention further provides a using method of the slow-release diaphorina citri attractant. The azeotropic slow-release component and the adsorption slow-release component are combined, so that the volatilization efficiency of the luring part is reduced, the stable volatilization speed can be better maintained, the high attractant concentration is maintained within two to three weeks in cooperation with the diaphorina citri outbreak period and the yellow plate effective adhesion time, and the better pest killing effect is achieved.

A system for continuously treating recycled polystyrene material includes a hopper / densifier configured to feed recycled polystyrene material into the system. An extruder can turn the recycled polystyrene material into a molten material. In some embodiments the extruder uses thermal fluids, electric heaters, and / or a separate heater. Solvents, such as toluene, xylenes, cymenes, and / or terpinenes can aid in generating the molten material. The molten material can be depolymerized in a reactor and a catalyst can be used to aid the depolymerizing. In certain embodiments, the catalyst is contained in a permeable container. In some embodiments, copolymers / monomers are grafted onto the depolymerized material. The depolymerized molten material can be cooled via a heat exchanger. The product can be isolated by extraction, distillation, and / or separation. In some embodiments, the product is treated through filtration and absorption media. In some embodiments, multiple reactors are used.

The invention relates to the technical field of pharmaceutical analysis, in particular to a method for determining the content of chemical components entering blood of dripping pills with a refreshing throat. According to the method, a gas chromatography-mass spectrometry (GC-MS) technology is adopted, and the chromatographic conditions are as follows: an SH-Stabilwax capillary column is 30 m * 0.32 mm in specification, and the film thickness is 0.25 mu m; the temperature of a sample inlet is 220 DEG C; the split-flow-free sample injection is realized; the sample size is 1 microliter; the flow of a chromatographic column is 2mL / min; the mass spectrum conditions are as follows: the ion source temperature is 200 DEG C; the interface temperature is 230 DEG C; the ionization mode is electron impact ion (EI); the detection voltage is 0.2 KV; the solvent is delayed for 2 minutes; and SIM mode. The method creatively realizes the simultaneous determination of the concentrations of 14 volatile components, namely beta-pinene, limonene, eucalyptol, 3-octanol, isomenthone, menthone, camphor, menthyl acetate, trans-caryophyllene, menthol, borneol, caryophylline, p-cymene and guaiacol, in the throat-refreshing dropping pill or a drug-containing serum sample after taking the throat-refreshing dropping pill. According to the research, accurate monitoring on the drug effect substance groups in the instant-swallowing and refreshing containing dropping pill is realized for the first time, so that not only is a key experimental basis provided for perfecting the quality control standard, but also a new view angle is provided for explaining the modern scientific connotation of multi-component synergistic effect of the instant-swallowing and refreshing containing dropping pill; more scientific data is provided for establishing comprehensive quality control and quantitative research of the medicine in the future.

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.

A preparation method of nanofiber polyethylene aerogel comprises the following steps: 1) mixing polyethylene powder with p-cymene, heating and stirring to obtain a polyethylene solution; 2) pouring the solution into a mold, and cooling to room temperature to obtain polyethylene gel; and (3) carrying out gradient solvent exchange on the polyethylene gel by adopting an organic solvent to obtain organic gel under corresponding solvent exchange, and carrying out supercritical drying to obtain the nanofiber polyethylene aerogel. The preparation method is simple, efficient and reliable, the used raw material is ultra-high molecular weight polyethylene, and a thought is provided for treatment of daily high-frequency used high polymer materials; the nanofiber polyethylene aerogel prepared by the method can be compounded with other interlayer materials, and can be applied to the application fields of heat preservation, heat insulation, fire prevention and the like.

The invention relates to the technical field of cosmetics, and discloses an acne-removing composition containing multiple plants and an antibacterial allergy-relieving agent and a preparation method thereof.The acne-removing composition is prepared from, by weight, scutellaria baicalensis roots, rhizoma acori graminei, stephania tetrandra, radix sophorae flavescentis, amur corktree barks, white willow barks and salvia miltiorrhiza roots through 75% ethanol extraction and concentration; the antibacterial and allergy-relieving agent is selected from at least one of cymene, picolinin, bisabolol and camellia seed oil; the alcohol solvent is formed by compounding isoprene glycol and butanediol; hydroxypropyl cyclodextrin; tocopherol; and tocopherol. The total percentage of the components is 100%. Active components are extracted through a three-stage evaporation process according to a specific ratio of scutellaria baicalensis root to salvia miltiorrhiza root to amur corktree bark of 5: 20: 20, triple synergy is realized, berberine in the amur corktree bark inhibits bacteria, baicalin in the scutellaria baicalensis root inhibits TNF-alpha inflammatory factors, tanshinone in the salvia miltiorrhiza root regulates sebaceous gland secretion, and acnes are radically treated from the dimensions of pathogen removal, inflammation blocking and grease control.

This invention discloses a method for preparing palladium-supported triazine-based molecular heterojunction materials, comprising: mixing at least two aromatic nitrile compounds, then grinding and mixing them uniformly with a metal halide salt, calcining them in a tube furnace, washing, purifying, and drying to obtain the triazine-based molecular heterojunction material; wherein the aromatic nitrile compounds are at least two of terephthalonitrile, terephthalic acid acetonitrile, or 4,4'-dicyanobiphenyl; mixing the triazine-based molecular heterojunction material and palladium chloride-hydrochloric acid solution uniformly, heating under reflux, cooling to room temperature, adjusting the pH to alkaline with sodium hydroxide solution, adding sodium borohydride solution for reduction reaction, and after the reaction is completed, washing and drying to obtain the palladium-supported triazine-based molecular heterojunction material. Applying this catalyst to the catalytic dehydrogenation of dipentene to p-cymene can yield high-yield and high-purity p-cymene products, which is of great significance for catalyst development and the high-value utilization of biomass.

[Problem] To provide: a beverage that, as a result of using p-cymene, which increases in a beverage over time, a new value in flavor is imparted, that is, the intensity of an ink-like aroma is reduced and the complexity of the flavor is enhanced; and a method for producing the beverage. [Solution] A packaged citrus-flavored beverage has a p-cymene concentration of 125 μg / L or more and an α-terpineol concentration of at least 12 times that of the p-cymene concentration.