42 results about "Eucalyptol" 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.

This invention discloses an anti-acne Propionibacterium acnes compound essential oil, its preparation method, and its application. The anti-acne Propionibacterium acnes compound essential oil is composed of the following components in the indicated mass percentages: 22%~28% helichrysum essential oil, 22%~28% sweet basil essential oil, 22%~28% eucalyptol rosemary essential oil, and 22%~28% true lavender essential oil. This invention achieves highly effective antibacterial activity against Propionibacterium acnes through a precise selection of four plant essential oils and a scientifically formulated compound. It also possesses multiple benefits including anti-inflammatory properties, promotion of skin cell regeneration, and a natural fragrance. Furthermore, the product is natural, safe, and has no side effects, is suitable for various skin types, and can be directly applied to the preparation of various acne-removing skincare products.

The invention provides a mild refreshing borneol essential oil compound as well as a preparation method and application thereof. The borneol essential oil compound is prepared from the following components in parts by weight: 1 to 50 parts of borneol, 0.1 to 50 parts of menthol, 1 to 10 parts of natural camphor, 0.1 to 0.5 part of herba dendrobii essential oil, 35 to 70 parts of carrier oil, 0.2 to 1 part of vitamin E, 1 to 3 parts of eudesmol, 0.2 to 1 part of limonene and 0.5 to 5 parts of cinnamomum camphora essential oil clathrate compound. The borneol essential oil compound prepared by the invention has the advantages of better stability, high essential oil retention rate, freshness and durability, mild components without skin irritation, and refreshing effect, and can be applied to preparation of products such as snorting essential oil, roll-on essential oil or vehicle-mounted fragrance and the like.

The application provides an island reef coral filler compaction pile and a construction method thereof. The construction method of the island reef coral filler compaction pile comprises the following steps: (1) using a weight to hammer the ground soil body to form a cylindrical hole; (2) first filling mixed sand and stone into the hole, the mixed sand and stone is composed of coral reef gravel and calcareous sand, then pouring a microbial curing liquid and a composite additive, the microbial curing liquid is composed of a composite bacterial liquid and seawater, the composite bacterial liquid is prepared from bacillus pasteurii, bacillus cereus and bacillus mucilaginosus, and the composite additive is composed of hydroxyl citronellal and eucalyptol; then using the weight to ram the filler; (3) repeating step (2) to ram and fill the pile hole to the ground to form the compaction pile. The construction method can significantly improve the quality of the compaction pile, significantly improve the single pile bearing capacity, and effectively reduce the relative usage amount of the microbial curing liquid.

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.

The invention provides a blood-sucking midge efficient repellent and a screening and identifying method thereof, and relates to the technical field of biology. According to the invention, an odor receptor gene FtaiOr1 which is highly expressed at the head of a female gnat is obtained through identification, and a transgenic drosophila melanogaster strain Or22ab- / -GAL4 which can be used for screening a blood-sucking midge repellent compound is constructed through heterologous expression of the gene in a drosophila melanogaster ab3A neuron; and UAS-FtaiOr1 (UAS-FtaiOr1). Six blood sucking midge repelling compounds (camphor, eudesmol, (+)-anisone, alpha-terpilenol, (S)-cis-verbenol and isoterpinene) are obtained by screening of the fruit fly strain. The compounds can be used independently or in a compounded manner, are friendly to non-target organisms and environment, can be directly applied to repelling and on-site prevention and control of blood sucking midges, and have important application value in the aspects of reducing midge bites and reducing the propagation risk of entomophilous diseases.

This invention discloses a method for separating terpinene from camphor oil. The method utilizes the byproducts after separating eucalyptol from camphor oil. Camphor oil is subjected to vacuum distillation to release components, yielding passivated eucalyptol liquid and byproducts. The passivated eucalyptol liquid is then crystallized using a melt crystallization method to obtain more passivated eucalyptol and byproducts. The byproducts are fed into a distillation column for further distillation. The byproducts are coarsely separated in the distillation column using corrugated packing. After coarse separation, terpinene with a purity of 80% is obtained. The 80% purity terpinene is then purified by molecular distillation to obtain 98% purity terpinene. This method aims to improve the problem of low added value of byproducts and the tendency of terpinene to polymerize during atmospheric pressure separation, making it difficult to improve purity, when comprehensively utilizing camphor oil resources.

The invention discloses a method for detecting the influence of aromatherapy on bile acid metabolism caused by liver and gallbladder damp-heat syndrome, the method performs computer information processing based on acquired data, and comprises the following steps: acquiring aromatherapy exposure dose data, and determining the concentrations and inhalation doses of key aromatic components such as camphor, borneol and cineole through a gas chromatography-mass spectrometry technology; the method comprises the following steps: acquiring serum bile acid spectrum data, and synchronously quantifying 24 bile acids and metabolites thereof through a liquid chromatography-tandem mass spectrometry technology; performing feature extraction on the data to obtain aromatherapy exposure quantity features and bile acid metabolism change features; performing three-step step-by-step feature selection by adopting T inspection, a lasso algorithm and a variance expansion coefficient; and inputting the optimal feature into a curative effect prediction model trained based on a machine learning algorithm to obtain an aromatherapy curative effect prediction result, so that objective evaluation and accurate prediction of an aromatherapy method are realized, and the model accuracy is not lower than 85%.

The application relates to the technical field of daily chemicals, and particularly discloses a bacteriostatic and deodorizing fragrance composition as well as a preparation method and application thereof. The bacteriostatic and deodorizing fragrance composition is made of raw materials and comprises the following components: a chemical reaction type deodorizing fragrance base, a sensory modification and receptor blocking fragrance base and a bacteriostatic synergistic fragrance base. The chemical reaction type deodorizing fragrance base is a combination of one or more of citral, citronellal, decanal, damascone, ionone and methyl dihydrojasmonate; the sensory modification and receptor blocking fragrance base is a combination of one or more of menthol and its derivatives, linalyl acetate, dihydromyrcenol and eucalyptol; and the bacteriostatic synergistic fragrance base is a combination of one or more of farnesol, eugenol, thymol, tea tree oil and rosemary extract. The bacteriostatic and deodorizing fragrance composition can keep a better balance and coordination of the sensory modification, chemical deodorization and bacteriostatic components in the fragrance, and thus can exert excellent deodorization and bacteriostatic effects.

The invention relates to oral analgesic compositions for alleviation of perceived nicotine irritation through inhibition or blocking of nicotine activated receptors or ion channels in the gastrointestinal tract, including the oral cavity. The composition of the invention comprises one or more nicotine sources, one or more buffering agents, and at least two antagonists in an effective amount to inhibit or block nicotine agonist activation of Nicotinic Acetylcholine Receptors (nAChR) and / or Transient Receptor Potential (TRP) ion channels, the at least two antagonists being selected from the group consisting of a first antagonist comprising camphor or one or more compounds resembling camphor, a second antagonist comprising eucalyptol, and a third antagonist comprising (1R,2S,5R)—N-(4-Methoxyphenyl)-5-methyl-2-(1-methylethyl)cyclohexanecarboxamide (WS-12).

The invention belongs to the technical field of agricultural pest repelling, and particularly relates to an application of eudesmol and / or trans-2-hexenal in repelling megalustris megalustris. In order to solve the problems that the existing chemical prevention and treatment of the megalurothrips usitatus is easy to cause drug resistance enhancement, pesticide residues exceed the standard and the like, the invention firstly determines that eudesmol in zanthoxylum bungeanum volatile matters and trans-2-hexenal in tomato volatile matters have remarkable repelling activity on the megalurothrips usitatus, and determines the effective action concentration range of the eudesmol and the trans-2-hexenal. The eudesmol has a remarkable repelling effect when the volume ratio concentration is 10 <-2 > v / v and 10 <-3 > v / v, and has an extremely remarkable repelling effect when the volume ratio concentration is 10 <-1 > v / v; the trans-2-hexenal has an extremely remarkable repelling effect when the volume ratio concentration is 10 <-1 > v / v. The invention provides a new technical means for green repelling of the megalurothrips megalurothrips, which is helpful for reducing the use of chemical pesticides, reducing the risk of pesticide residues and ensuring the safe production of leguminous crops.

The invention discloses a new application of a natural product 1, 8-cineole, and the natural product 1, 8-cineole can be used as an inhibitor of pathogenic bacteria of Xanthomonas oryzae pv. Oryzae, Xanthomonas oryzae pv. Oryzae and basal rot pathogen of rice. The invention discloses the inhibition effect of 1, 8-cineole on plant pathogenic bacteria for the first time, and provides a theoretical basis for searching natural broad-spectrum antibacterial drugs. The new application of the 1, 8-cineole is defined, the application range of the 1, 8-cineole is widened, and a new way is provided for development of novel pesticides.

This invention belongs to the field of pharmaceutical formulation technology, specifically relating to a lozenge for refreshing the mind and freshening the breath, and its preparation method. The lozenge comprises a plain tablet and a shell. The plain tablet includes inner phase particles, an inner phase particle coating layer, and excipients: the inner phase particles use sodium carboxymethyl cellulose and crospovidone to construct an immediate-release framework, with immediate-release and sustained-release caffeine and theanine as stimulating ingredients, supplemented by poloxamer to enhance penetration, achieving rapid absorption and sustained release of caffeine, and the theanine alleviates the nerve stimulation caused by caffeine; the inner phase particle coating layer uses hydroxypropyl methylcellulose and hydroxypropyl cellulose to construct a sustained-release framework, with polyethylene glycol forming microporous channels to promote the sustained release of fermented ginsenosides, enhancing anti-fatigue ability to prolong the stimulating effect, and releasing eucalyptol and limonene to produce a cooling sensation and mask odor, supplemented by Lactobacillus rhamnosus to inhibit the growth of harmful bacteria in the mouth to reduce odor, thereby achieving the effects of rapid stimulating, long-lasting mental alertness, and fresh breath.

This invention relates to the field of mosquito repellent composition technology, specifically to a plant-based mosquito repellent composition and its preparation method, comprising Sophora flavescens extract, eucalyptol, montmorillonite glycol, and natural Echinacea purpurea extract; the natural Echinacea purpurea extract is an aqueous extract with a chicoric acid content ≥4%. The plant-based mosquito repellent composition and preparation method of this invention, through functional optimization of single components and synergistic formulation of multiple components, fundamentally solves the core problems of existing plant-based mosquito repellent products, such as poor mosquito repellent effect, short effective duration, and lack of skin soothing function, while also taking into account the product's naturalness and safety. Because a combined low-temperature enzymatic hydrolysis-stepwise alcohol extraction-microfiltration purification process is used to prepare the Sophora flavescens extract, and natural menthol extract is added as a drug guide, the extraction rate and utilization efficiency of plant active ingredients are effectively improved, reducing the waste of plant resources. Furthermore, the preparation process is green and environmentally friendly, generating no harmful waste.

The application discloses a gene of eudesmolsynthase AoTPS1 and an application of the gene and a coded protein, and provides a gene AoTPS1 for regulating biosynthesis of a monoterpenoid compound eudesmol, wherein a nucleotide sequence is shown as SEQ ID NO. 1, the total length of the sequence is 1785 bp, 594 amino acids are coded, the molecular weight is 69.03 kDa, and a coded amino acid sequence is shown as SEQ ID NO. 2. The eudesmolsynthase AoTPS1 protein has the function of catalyzing synthesis of eudesmol in vitro, meanwhile, overexpression of the eudesmolsynthase AoTPS1 gene by using a genetic transformation technology can significantly increase the content of eudesmol in monoterpenoid volatile oil compounds. Therefore, the AoTPS1 gene is a key gene for regulating synthesis of volatile oil of Eucommia ulmoides Oliv., and can significantly promote biosynthesis of eudesmol in monoterpenoid volatile oil and improve the medicinal value of volatile oil of Eucommia ulmoides Oliv.

The application provides a road efficient antifreeze and corrosion inhibitor snow-melting agent and a preparation method thereof. The snow-melting agent comprises 10-20% of an antifreeze agent, a corrosion inhibitor additive, and the balance of water. The corrosion inhibitor additive comprises 0.1-1% of sodium citrate, 0.1-1% of benzotriazole, 0.1-1% of sodium tripolyphosphate, 0.1-1% of sodium gluconate, 0.1-1% of tannic acid, 0.1-1% of polyvinylpyrrolidone and 0.1-1% of 2-hydroxyphosphonoacetic acid. The preparation method comprises antifreeze solution preparation, preparation of a mother liquor containing the antifreeze and corrosion inhibitor additive, and finally adding eucalyptol and triethanolamine oleate to the mother liquor containing the antifreeze and corrosion inhibitor additive to obtain the snow-melting agent. The application constructs a "precipitation film-adsorption film" composite protective layer, and simultaneously compounding organic corrosion inhibitors and inorganic corrosion inhibitors, so that the components are synergistically enhanced, and the corrosion resistance of the snow-melting agent is improved.

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.

A multilayer flexible packaging material comprising cyclic olefin copolymer in the flowable formulation-contacting layer ("inner layer") does not induce significant scalping of flowable formulations comprising essential oils such as eucalyptol, menthol, methyl salicylate and thymol in the presence of limonene.

The invention provides fragrance essential oil with a resuscitation inducing effect and a preparation method of the fragrance essential oil. The fragrance essential oil comprises the following components: 12-28 parts of eucalyptus radiated eucalyptus essential oil; 8-22 parts of cinnamomum camphora leaf essential oil; 3-10 parts of cardamom seed essential oil; 2-8 parts of black pepper fruit essential oil; 4-14 parts of sweet basil leaf essential oil; 4-14 parts of cypress leaf / branch essential oil; 0.5-4 parts of vetiver root essential oil; 0.05 to 0.60 part of a natural antioxidant stabilizer; 0-35 parts of carrier oil; the mass fraction of 1, 8-eucalyptol in the cinnamomum camphora leaf essential oil is 30%-75%. The eucalyptus radiation eucalyptus essential oil and / or the cinnamomum camphora leaf essential oil are / is subjected to molecular distillation sectional distillation, light fractions and heavy fractions are divided according to the accumulative distillation rate, and compounding is performed according to the limited proportion, so that the composition of volatile components and relatively non-volatile components in a compounded system is more stable, and the content of the volatile components and the relatively non-volatile components in the compounded system is improved. Therefore, the coordination process of the pre-adjustment release of the fragrance essential oil during fragrance diffusion or sniffing and the whole fragrance is easier to repeat and control.

The invention provides a pharmaceutical composition. The pharmaceutical composition comprises eudesmol and cryptomerol. The invention further provides application of the pharmaceutical composition in preparation of drugs for preventing and treating acute lung injury and a drug containing the pharmaceutical composition. Compared with the prior art, the compound of the eudesmol and the cryptomerol has the advantages that the eudesmol and the cryptomerol are compounded for preventing and treating the acute lung injury, so that the synergistic effect is achieved, the lung injury can be greatly improved, the effects of relieving lung tissue inflammation, reducing the content of cell factors TNF-alpha, IL-1beta and IL-6, reducing oxidative stress injury and the like are achieved, and the curative effect is good. The composition can be used for preventing and treating acute lung injury and has a remarkable effect.

The invention discloses a three-stage eucalyptus oil fractionating tower and belongs to the technical field of cineole extraction equipment.The three-stage eucalyptus oil fractionating tower comprises a fractionating tower body, a feeding pipe is installed at the top end of the fractionating tower body in a communicating mode, a discharging pipe is installed at the bottom of the fractionating tower body in a communicating mode, and a filtering assembly capable of filtering entering eucalyptus oil is assembled in the fractionating tower body; the dehydration assembly can be used for carrying out oil-water separation on the filtered eucalyptus oil, and a dealdehyding assembly capable of carrying out dealdehyding treatment on the eucalyptus oil subjected to oil-water separation and a deodorization assembly capable of carrying out deodorization treatment on the eucalyptus oil subjected to dealdehyding treatment are also assembled in the fractionating tower; through integrated filtration, dehydration, dealdehyding and deodorization assemblies, a medicinal product with more than or equal to 85% of cineole, less than or equal to 30 ppm of total aldehyde and less than or equal to 200 ppm of water can be directly obtained through discharging.

The application discloses application of eucalyptus oil preparation in skin inflammation treatment, the dosage form of the eucalyptus oil preparation is one of cream, ointment, liniment, spirit, mud film, spray and dressing, the eucalyptus oil preparation contains eucalyptol, the content of the eucalyptol is 1% or 2.5%, when the dosage form of the eucalyptus oil preparation is cream, different potency glucocorticoids are additionally added in the eucalyptus oil preparation to form a compound preparation, when the dosage form of the eucalyptus oil preparation is liniment, glycerol is added in the eucalyptus oil preparation, when the dosage form of the eucalyptus oil preparation is mud film, the mud film is mud-like facial mask prepared by mud film powder and eucalyptus oil.The several new dosage forms provided by the application have the advantages of convenient storage, easy carrying and convenient use under the premise of ensuring treatment effect, and the mud film preparation is extremely friendly to female skin inflammation patients.

The invention provides a plant essential oil additive and a preparation method and application thereof, the plant essential oil additive comprises a wall material and plant essential oil, and the wall material comprises Arabic gum and maltodextrin; the plant essential oil comprises thymol, carvacrol, cinnamyl aldehyde and cineole; wherein the wall material is coated on the outer side of the plant essential oil. According to the invention, through wall material coating, the volatility of the plant essential oil is effectively inhibited, and the volatilization and degradation of essential oil components are delayed, so that the stability and durability of the essential oil in the feed are enhanced. And wall material wrapping can prevent non-uniform distribution of the plant essential oil component in the feed, so that the uniformity and effectiveness of the plant essential oil component in the feed are ensured, and the use effect is improved. The activity of thymol, carvacrol, cinnamyl aldehyde, cineole and other components in the plant essential oil can be kept, and the components have good antibacterial, anti-inflammatory, anti-oxidation and immunoregulation effects and are beneficial to improving the health level of livestock and poultry.

The invention belongs to the technical field of prevention and control of harmful ants, and provides application of plant-derived natural components in repelling solenopsis invicta, cassia oil, cedar oil, clary sage oil and cineole are used as efficient repelling active components, and the optimal action concentration of the components is determined, namely the concentration of the cassia oil and the concentration of the cedar oil are 250-1000 ppm; when the concentration of the clary sage oil and the cineole is 30-125ppm, the repelling effect on the solenopsis invicta is optimal, so that the problems that chemical pesticides pollute the environment and are easy to induce drug resistance are solved; the compound can be prepared into liquid, emulsion, aerosol or ointment, is matched with ethanol, acetone and other solvents for use, has the advantages of environmental friendliness, low drug resistance risk and the like, and is suitable for prevention and control of solenopsis invicta in farmlands, gardens, residential areas and other scenes.

The invention refers to compositions comprising: (a) from 25% to 43% by weight of 5-Isopropil-2-metilfenol (carvacrol); (b) from 20% to 38% by weight of 1,3,3-Trimethyl-2-oxabicyclo[2.2.2]octane (eucalyptol); and (c) from 21% to 38% by weight of 4-Methyl-1-(propan-2-yl)cyclohex-3-en-1-ol (terpinen-4-ol) being the sum of ingredients up to 100% by weight. The compositions have a strong biocidal activity. The invention also refers to products comprising the composition and also to the uses thereof.

The invention discloses a fumigating composite agent for killing and preventing termites and pests, which is composed of a smoke matrix (mixed and crushed wormwood and chrysanthemum in a ratio of 3: 2, and 60-80 meshes) and an oil phase active mixture in a mass ratio of (30%: 70%), the oil phase contains components such as cineole and natural pyrethrin as well as light mineral oil, and the preparation method comprises three steps of drying the matrix, stirring the oil phase at a constant temperature and mixing and forming. The composite agent is suitable for basements and ancient building wood members, the rate of killing termites, cockroaches and wood moths is larger than or equal to 98%, and the prevention period is 3-6 months; the temperature of the smoke is 50-60 DEG C, the particle size is 5-10 microns, and the smoke can permeate gaps of 0.1- The soil residual half-life period is less than or equal to 7 days; the soil is stable after being sealed and stored for 12 months by aluminum foil; the application parameters are clear; the operation is convenient and fast;

This invention belongs to the field of agricultural pest repellency technology, specifically involving the application of eucalyptol and / or trans-2-hexenal in repelling soybean thrips. Addressing the problems of increased pesticide resistance and excessive pesticide residues in existing chemical control methods for soybean thrips, this invention, for the first time, clearly demonstrates that eucalyptol from Sichuan pepper volatiles and trans-2-hexenal from tomato volatiles possess significant repellent activity against soybean thrips, and determines their effective concentration range. Eucalyptol at a volume ratio concentration of 10... ‑2 and 10 ‑3 v / v has a significant evasion effect, at 10 ‑1 It exhibits a highly significant repellent effect at a v / v ratio; trans-2-hexenal at a volume ratio concentration of 10 ‑1 It exhibits a highly significant repellent effect at v / v. This invention provides a new technological means for the green repellent of soybean thrips, helping to reduce the use of chemical pesticides, lower the risk of pesticide residues, and ensure the safe production of leguminous crops.

The application discloses a preparation for influencing the tropotaxis behavior of leafhoppers and application of the preparation in leafhopper attraction or avoidance, and belongs to the technical field of pest control. The preparation for influencing the tropotaxis behavior of leafhoppers has effective components containing at least one of phenylacetone, pinene, linalool, ocimene, linalool oxide, alpha-pinene, sabinene, eucalyptol, heptadecane and p-cymene. The combined and screened attractants have a significant attraction effect on leafhoppers, and after the attractants are prepared into the preparation, the preparation can be applied to leafhopper attraction in a field, and the effect is remarkable.

The invention discloses a GC fingerprint spectrum detection method for traditional Chinese medicine, and belongs to the field of traditional Chinese medicine detection. The traditional Chinese medicine is prepared from nine medicinal materials including pericarpium citri reticulatae, thunberg fritillary bulb, selfheal, oroxylum indicum, platycodon grandiflorum, radix scrophulariae, semen coicis, biond magnolia flower and divaricate saposhnikovia root, and is used for treating the child adenoid hypertrophy, and the method comprises the following steps: preparing a test solution, adopting an HP-5 capillary column, performing analysis under the chromatographic conditions that the split ratio is 30: 1, temperature programming is performed, the temperature of a sample inlet is 290 DEG C, and the temperature of a detector is 300 DEG C, and recording a chromatogram for 075 min. A standard fingerprint spectrum containing 19 common peaks is established by measuring a plurality of batches of samples, the attribution of each peak is defined, and five characteristic components such as eucalyptol and beta-bisabolol are identified. The method is good in stability and high in reproducibility, the constructed fingerprint spectrum is high in characteristic, the method can be used for quality consistency evaluation and production process control of traditional Chinese medicine, and safety and effectiveness of clinical medication are guaranteed.