39 results about "Methyleugenol" patented technology

The invention relates to a protein attractant for Bactrocera dorsalis Hendel and a preparation method thereof. The protein attractant for the Bactrocera dorsalis Hendel is prepared by blending hydrolyzed protein solution and methyleugenol, and the hydrolyzed protein solution is produced by adopting a byproduct of beer industry, namely waste beer yeast. Indoor bioassay results show that the attraction rate of a product on the Bactrocera dorsalis Hendel can averagely reach 71.7 percent, wherein the attraction rates on females and males are 58.3 percent and 85.0 percent respectively. The attractant and the method have the advantages of simple production technology, rich raw materials and the like; and the product has attraction effect on male and female adult insects of the Bactrocera dorsalis Hendel, has no pollution to the environment at the same time, is nontoxic to people and other beneficial insects, and has excellent application prospect.

Belonging to the technical field of citrus pest control, the invention specifically relates to a polyvalent protein attractant suitable for bactroceradorsalis (Hendel), its preparation method and application. The polyvalent protein attractant comprises by weight: 5-20% of polyvalent peptone; 5-20% of brown sugar; 10-20% of edible vinegar or 1-3% of ammonium acetate; 0.1-0.3% of a preservative; 0-2% of methyleugenol; and 0.1-1% of a pesticide. Water is added to the above components to a full formulation amount, and through fully stirring, dissolving and uniformly mixing, a polyvalent protein attractant for effective control of bactroceradorsalis (Hendel) can be obtained. The polyvalent protein attractant of the invention has the advantages of substantial attraction effect for female and male imagoes of bactroceradorsalis (Hendel), no environmental pollution, no toxicity to human and other beneficial insects, as well as simple production technology and low cost, etc.

The invention provides a bactrocera dorsalis amphoteric attractant as well as a preparation method and an application thereof. The bactrocera dorsalis amphoteric attractant comprises hesperetin, alcohols, ketones, methyleugenol, esters, vegetable oil, an antioxidant, added auxiliary components such as an antioxidant, an anti-ultraviolet agent and an anti-bactericide agent as well as a thickening agent, a slow-release agent and the like and is put in a deep color container with a cover so as to be preserved. The main components and the raw materials of the amphoteric attractant derive from natural plant extractives, so that the amphoteric attractant is environmentally-friendly and is safe for non-target organisms; the bactrocera dorsalis amphoteric attractant has a very good trapping effect on female adults and male adults of bactrocera dorsalis in combination with the integrated application of other solid sustained-release materials and is capable of effectively reducing the population cardinal number of the bactrocera dorsalis in a using region generation by generation. The bactrocera dorsalis amphoteric attractant is simple in synthesis process, low in cost and suitable for wide application and popularization in orange producing areas and other bactrocera dorsalis host crop producing areas and is also effective for injurious insects such as bactrocera zonata and melon flies.

This invention publics a detecting method about a nontoxic traditional medicine liao asarum. It is to extract volatile oil according to a method of volatile oil extraction from Chinese pharmacopeia, the 2000 edition, dissolve by cyclohexane, and inject it into gas-chromatograph-mass spectrometer to draft fingerprint pattern. Through the analysis result by computer, it is to get 28-wave crest, such as methyleugenol, safrole myristicin and so on, where the essential component methyleugenol is about 37 percent. The volatile oil extracted according to pharmacopeia is dissolved by acetic ester, added methyl alcohol, and injected into high efficiency liquid chromatography to get high efficiency liquid fingerprint pattern. It is to adopt liquid hypersonic extracted for 30 minutes by methyl alcohol-water (3:1) ,and inject it into high efficiency liquid chromatography to build detecting method about high efficiency liquid chromatogram for aristolochic acid.

The invention provides a colloidal composition for luring insects. The colloidal composition contains cuelure and methyleugenol and further contains a pressure-sensitive adhesive, a solid-phase carrier and a solvent. In addition, the invention further provides a spray and an adhesive tape for luring insects and a method for reducing harm of the insects. By adopting the technical scheme, the colloidal composition can make the proportion (harm rate) of the number of verminous fruits in the total fruit number reduced to 5-15% and remarkably lower than the proportion of an existing insect control preparation.

The invention discloses a pesticide capable of effectively repelling bactrocera minax female adult pests and an application of the pesticide. According to the invention, experiments discover that combined usage of methyleugenol and 4-(4-acetoxyphenyl)-2-butanone has a remarkable repellent effect on the bactrocera minax female adult pests, so that combination of the methyleugenol and the 4-(4-acetoxyphenyl)-2-butanone can be utilized as a repellent agent of the bactrocera minax female adult pests, and a novel idea is supplied for comprehensive prevention and control of bactrocera minax.

The invention discloses a method for measuring methyleugenol in cigarette mainstream smoke. The method comprises the following steps: preparing an internal standard solution, a standard working solution and a sample solution, performing gas chromatography-tandem mass spectrometry analysis and calculating the measurement result. 3,4-methylene dioxo acetophenone serves as an internal standard substance for quantifying, the optimized detection method is simple and convenient in operation, sensitive in response and accurate in quantitative analysis, interference brought by a complex sample matrix is effectively reduced, the target has good signal response and has high linear correlation due to the adopted chromatography-mass spectrum conditions, the detection limit is 0.31ng per cigarette, the relative standard deviation is 4.30 percent, and the adding standard recovery is between 94.85 percent and 112.51 percent. Therefore, the method is high in sensitivity, high in repeatability and high in recovery rate and is suitable for quantitative analysis of trace targets in the complex smoke matrix.

The invention discloses a method for synthesizing methyleugenol. The method is characterized by comprising the following steps: reacting 4-halo-benzenediol and methyl to synthesize 4-halo-benzenediolmethyl ether; reacting the 4-halo-benzenediol methyl ether and magnesium to produce magnesium halide 4-benzenediol methyl ether; and reacting the magnesium halide 4-benzenediol methyl ether and 3-halo-1-propyl olefin to produce methyleugenol. According to the method for synthesizing methyleugenol, provided by the invention, the methylation reaction is carried out first, and a Grignard reagent and3-halo-1-propyl olefin react to obtain the methyleugenol. The overall yield reaches 80% or higher, the purification is simple, and non-toxic dimethyl carbonate or alkyl halide is used in the process flow, so that the process is small in human toxic and side effects, and environmental pollution is reduced.

The invention provides an attractant for bactrocera dorsalis. The attractant for bactrocera dorsalis contains effective attracting components in percentage by mass as follows: 80%-90% of methyleugenol, 5%-10% of ethyl acetate and 5%-10% of butyl acetate, and further contains a slow release agent and an antioxidant. In the effective components, ethyl acetate and butyl acetate effectively enhance the attraction effect of methyleugenol, and action time of the attractant is longer and the effect is better by means of the slow release agent; by the aid of the antioxidant, the degree of oxidizationand decomposition of the effective attracting components by external factors such as air and light can be reduced, and duration of the effective attracting components is longer.

The invention relates to a bactrocera dorsalis drug and a preparation method thereof. The bactrocera dorsalis drug is prepared from the raw material components in percentage by mass: 5 percent to 10 percent of attractant, 0.5 percent to 1.0 percent of insecticidal composition, 2 percent to 5 percent of emulsifier, 2 percent to 5 percent of coemulsifier, 1 percent to 3 percent of solubilizer, and the balance of water. The preparation method comprises the steps of mixing the attractant, the insecticidal composition and the emulsifier according to the proportion, then adding one third of water under intense mixing, adding the coemulsifier after 10 minutes, continuously stirring for 20 minutes, adding the rest of water and solubilizer, and stirring for 30 minutes to obtain the bactrocera dorsalis drug. According to the bactrocera dorsalis drug and the preparation method thereof provided by the invention, the attractant and the insecticidal composition are emulsified and coated by the emulsifier so as to obtain a uniform solution drug, demulsification is continuously carried out along with the volatilization of water in the drug, and the attractant and the insecticidal composition are released; the technical principle is that through an emulsifying technology, the release speed of methyleugenol is retarded, and the time for attracting and killing the bactrocera dorsalis is prolonged.

The invention relates to a melaleuca bracteata sachet and a preparation method thereof. The preparation method comprises the following steps: S1, freeze-drying melaleuca bracteata leaves, crushing, sieving, adding an ethanol solution, and then putting into a flash extractor for extraction, suction filtration and precipitation; s2, heating a beta-cyclodextrin aqueous solution, adding the melaleuca bracteata extract, stirring, filtering, carrying out vacuum drying on a precipitate obtained by filtering, mixing with light calcium carbonate, a coupling agent, a white willow bark extract and loose polyvinyl chloride resin, cooling, and carrying out extrusion granulation; and S3, putting the obtained fragrant master batch into the capsule body to obtain the product. According to the invention, volatile components such as methyleugenol in melaleuca bracteata are extracted through extraction, then the volatile components are coated with beta-cyclodextrin, then the beta-cyclodextrin enters pores of loose polyvinyl chloride resin, and then the loose polyvinyl chloride resin is placed in the sachet, so that the volatile components can be dispersed in the pores of the loose polyvinyl chloride resin in the volatilization process of the methyleugenol; a human body can absorb components such as methyleugenol, and the sachet is endowed with an immune effect.

The invention belongs to the field of reconstituted tobaccos and particularly relates to a coating liquid for the reconstituted tobacco. The coating liquid for the reconstituted tobacco comprises methyleugenol and a coating liquid A, the weight ratio of the methyleugenol to the coating liquid A is less than 0.01%:1 and is not 0, wherein the coating liquid A is prepared through a method comprisinga step (1), a step (2), a step (5), an optional step (3) and an optional step (4) as follows: (1) extracting tobacco leftovers with water, and implementing solid-liquid separation to obtain a first liquid-phase material; (2) extracting a tobacco material with water, and implementing solid-liquid separation to obtain a second liquid-phase material; (3) concentrating the first liquid-phase materialto obtain a first concentrated solution; (4) concentrating the second liquid-phase material to obtain a second concentrated solution; (5) mixing the first liquid-phase material with the second liquid-phase material, or mixing the first concentrated solution with the second concentrated solution. The invention further relates to the preparation method of the coating liquid. The permeation rate of the coating liquid on a substrate is high, and the sensory quality of the reconstituted tobacco is not affected.

The invention provides an application of methyleugenol in preparation of a medicine for relieving hepatic ischemia-reperfusion injury. The methyleugenol comprises a medicine composition containing the methyleugenol and various pharmaceutically acceptable medicine preparations of the methyleugenol, has a protection effect on the hepatic ischemia-reperfusion injury, can relieve injury. The application of the methyleugenol in preparation of the medicine for relieving the hepatic ischemia-reperfusion injury has clinical practical significance and value for further development and application.

Provided is a lemon juice-containing beverage which gives a fresh sensation typical of lemon regardless of its low fruit juice content. One ppb or more of at least one phenylpropene selected from the group consisting of safrole, methyleugenol, and myristicin is incorporated in a lemon juice-containing beverage having a fruit juice content of not less than 1% and not more than 30% and comprising at least one aroma component selected from the group consisting of linalool, nonanal, and decanal.

The invention discloses acaricidal missible oil and a preparation method and application thereof, and belongs to the field of veterinary drugs. The acaricidal missible oil comprises 1-5 parts of eugenol, 2-4 parts of thyme essential oil, 10-20 parts of methyleugenol and 1-2 parts of an emulsifier, wherein the emulsifier comprises calcium pyruvate, white mineral oil 26, an emulsifier OP-10 and pesticide emulsion 700. After the acaricidal missible oil is diluted, liquid medicine is uniform, stable and free of layering, all active ingredients of the selected main raw material plant essential oil have a remarkable synergistic effect, and the acaricidal missible oil is safe, green, efficient and free of toxic and side effects; in production and application, the acaricidal missible oil can effectively kill the chigger mites on chicken bodies, and the production cost is reduced.

The invention discloses an efficient tile surface detergent which is prepared from the following raw materials in parts by weight: 20-30 parts of methyleugenol, 15-30 parts of methyl salicylate, 10-20 parts of dipropylene glycol monomethyl ether, 1-5 parts of sodium bicarbonate, 50-100 parts of deionized water, 5-10 parts of betaine, 10-20 parts of hemp oil, 5-10 parts of carbon nano tubes, 8-12 parts of a tea seed extract and 12-25 parts of a plant extracting solution; the plant extracting solution is prepared from barberry, sowthistle tasselflower herb, creeping oxalis and common sorrel; the tea seed extract is obtained by performing carbon dioxide supercritical extraction on tea seeds. Most of the added raw materials are extracted from plants, are green, environmentally friendly and non-toxic; the efficient tile surface detergent is high in cleaning ability, can be used to eliminate dirt on the surfaces of tiles in a short time, and is made of the non-toxic, green and environment-friendly materials.

The invention relates to a detection method for volatile components in antiviral oral-liquid and belongs to the technical field of pharmaceutical analysis. The method comprises the following steps: extracting volatile components of a to-be-detected sample by adopting a steam distillation method, an extracting method, or an organic solvent reflux extracting method, and preparing a sample solution; finely weighing alpha-pinene, beta-pinene, terpinene-4-alcohol, terpilenol, borneol, methyleugenol, patchouli alcohol, beta-asarone, patchoulenone, and alpha-asarone, and preparing volatile component reference solutions by using an organic solvent; and determining the ten types of volatile components by using a gas chromatography simultaneously, so that medicinal material information can be relatively completely reflected, the product quality is relatively completely evaluated, the quality standard is increased, and simultaneously conditions are provided for the product manufacturing technique optimization.

The invention belongs to the field of anesthetics, and particularly relates to a compound anesthetic and a preparation method thereof. The compound anesthetic is prepared from the raw materials: propofol, methyleugenol, citric acid, menthol ice, herba cladostachvdis, radix paeoniae rubra, ethanol, lecithin and water through extraction and mixing of effective ingredients. The compound anesthetic has good anesthetic and analgesic effects and is small in side effect, and the preparation method is simple and easy to implement.

The invention provides a bactrocera dorsalis attractant with a male and female double attracting function. The bactrocera dorsalis attractant is prepared from the following components in percentage bymass: 15 to 20% of soy peptone, 5 to 10% of tangerine essence, 5 to 10% of mango essence, 0.5 to 1% of preservative, 20 to 35% of hot melt glue, 30 to 50% of methyleugenol, and 0.2 to 0.5% of serratia liquid, wherein the sum of percentages of the above components is 100%. The bactrocera dorsalis attractant has the advantages that the peptone, the fruit essences and the serratia liquid can producehigh activity on the female bactrocera dorsalis, the methyleugenol can produce extremely high activity on the male bactrocera dorsalis, the lasting property is high, and the controlled-release type male and female double attracting function is realized. The solid sol has strong sticking property, the adult trypetid can be directly attracted and stuck, and cannot fly out so as to reach the killingfunction, and the other insect-killing pesticide for killing is not required.