140 results about "Eugenol" patented technology

The invention relates to the technical field of film material preparation, and discloses a polylactic acid antibacterial packaging film and a preparation method thereof, the polylactic acid antibacterial packaging film comprises the following raw material components by weight: 60-80 parts of polylactic acid, 10-20 parts of polyvinyl alcohol, 10-20 parts of nano zinc oxide, 0.5-1.5 parts of nano cellulose, 1-3 parts of an antibacterial agent, and 10-15 parts of corn starch; the antibacterial agent is prepared from the following components in parts by weight: 5-10 parts of carboxymethylated chitosan and 0.5-2 parts of a dynamic disulfide bond cross-linking agent, the substitution degree of the carboxymethylated chitosan is greater than or equal to 80%, the antibacterial agent is prepared from tea tree essential oil and eugenol, and the dynamic disulfide bond cross-linking agent is bis (3-aminopropyl) disulfide. By adopting a composite system of carboxymethylated chitosan and a dynamic disulfide bond cross-linking agent, the technical effects of humidity-triggered self-repairing and mechanical property synergistic improvement are achieved, and compared with a packaging film with a single polymer base material in the prior art, the problem of antibacterial failure caused by mechanical damage is solved.

The invention relates to the technical field of soil improvement, and discloses a soil improvement repairing agent and a preparation method thereof. The preparation method comprises the following steps: adding biochar, modified eugenol, modified benzothiazolyl pyridine, bacillus licheniformis and diatomite into a mixer, mixing and stirring, extruding and granulating in a granulator, and drying to obtain the soil improvement repairing agent. Eugenol can destroy a membrane structure and denature protein, so that a bacteriostatic effect is achieved, and a healthy soil microenvironment is provided for crops; the quaternary ammonium salt can destroy the membrane structure of pathogenic microorganisms, plays a role in killing the microorganisms, can improve the antibacterial effect of the remediation agent, and prevents and treats spread diseases of soil; nitrogen atoms and sulfur atoms in benzothiazolyl pyridine molecules can coordinate with free heavy metal ions in the soil, the heavy metal adsorption effect of the remediation agent is improved, the production value of the soil is gradually restored, meanwhile, boric acid capable of being absorbed by plants can be released through hydrolysis of pinacol ester, and the fertility of the soil is improved.

The invention provides a bumblebee attractant and a method for pollinating camellia oleifera by utilizing bumblebees, and belongs to the technical field of camellia oleifera pollination. The bumblebee attractant comprises the following components: eugenol, methyl jasmonate, glucose, a solubilizer and a diluent. The method for pollinating the camellia oleifera by using the bumblebees comprises the following steps: S1, 1-2 weeks before pollination, performing disinfection and insecticidal treatment on a camellia oleifera tree entering row; s2, 2-3 days before flowering of camellia oleifera, bumblebee beehives are placed in a camellia oleifera garden, and hydromel is fed; s3, when male flowers and female flowers of camellia oleifera bloom and the weather is sunny, spraying the bumblebee attractant to stigmas of the female flowers every day, and meanwhile, releasing pollinated bumblebees from the beehive until the flowering phase of the female flowers ends. Eugenol and methyl jasmonate in the attractant can synergistically improve the attraction effect on bumblebees, and the pollination rate of camellia oleifera is increased.

The invention relates to the technical field of separation and purification, in particular to a purification method of eugenol, which comprises the following steps: (a) dissolving crude eugenol in an ethanol aqueous solution to prepare a solution with eugenol mass concentration of 20-30%; (b) adding a composite protective agent into the solution, uniformly stirring and standing to obtain a mixed solution, the composite protective agent comprising modified chitosan, sodium ascorbate and nano-silica; (c) carrying out reduced pressure evaporation on the mixed solution, and recovering the solvent to obtain a concentrated solution; (d) adding the concentrated solution into a glycine aqueous solution with the mass concentration of 1-2%, uniformly stirring and standing; and (e) carrying out segmented temperature control rectification on the concentrated solution treated in the step (d), and collecting a target fraction to obtain the high-purity eugenol. By introducing a novel protective agent system and a staged temperature control rectification technology, the occurrence rate of thermal decomposition and oxidation reaction is remarkably reduced, and the product purity and the production efficiency are improved.

A preparation method of plant compound essential oil comprises the following steps: preparing mixed powder from dried lemon slices, mint and litsea coreana, carrying out carbon dioxide supercritical extraction, and collecting an extract; the preparation method comprises the following steps: dropwise adding a carboxymethyl-beta-cyclodextrin solution into a mixture of eugenol and thymol, carrying out ultrasonic treatment to obtain an ultrasonic mixed solution, standing, centrifuging, collecting supernate, and drying to obtain a white powdery inclusion compound; and adding lecithin, Tween 80, disodium pyrophosphate and deionized water into the extract, heating and stirring, continuing to add the inclusion compound, homogenizing to obtain a nano-emulsion, adding gelatin and propylene glycol, heating and preserving heat, and cooling to obtain the plant composite essential oil. The compound essential oil disclosed by the invention has antibacterial and antioxidant effects, and has relatively strong antibacterial ability on botrytis cinerea and penicillium germs, and the DPPH free radical scavenging rate is greater than or equal to 90%. According to the invention, the active ingredients of the essential oil are wrapped by carboxymethyl-beta-cyclodextrin and synergistically embedded by lipidosome through a nano-embedding technology to realize slow release, so that the antioxidant and antibacterial properties are effectively prolonged.

To provide a method for enhancing the bacteriostatic property of a beer-like beverage without the need of lowering pH and without the need of maintaining the amount of hop used or an alcohol concentration high.SOLUTION: A method for enhancing the bacteriostatic property of a beer-like beverage, comprising containing eugenol.SELECTED DRAWING: None

The invention relates to cream for repairing radiodermatitis and a preparation method of the cream, and belongs to the technical field of biomedical skin treatment. The cream consists of the following components in percentage by weight: 8% of glycerin monostearate, 6% of stearic acid, 5% of white vaseline, 4% of liquid wax, 1-2% of tea tree oil, 1-2% of eugenol, 1-2% of vitamin E, 3% of trehalose, 8% of polyethylene glycol (PEG-400), 10% of glycerol, 0.5% of methylparaben, 1% of triethanolamine and the balance of purified water. According to the cream disclosed by the invention, the natural traditional Chinese medicine component eugenol and the natural substance vitamin E are utilized to synergistically enhance the anti-oxidation and bacteriostatic effects, and the tea tree oil, the trehalose and other effective components are utilized to repair radiodermatitis from multiple aspects of anti-inflammation, bacteriostasis, antioxidation, promotion of skin barrier repair and the like. The cream is simple in component, good in treatment effect, high in safety and convenient to produce and process, and can be popularized and applied to treatment of radiodermatitis.

The invention relates to an intelligent gel label integrating freshness monitoring and preservation as well as a preparation method and application of the intelligent gel label. The intelligent gel label is composed of a porous gel substrate, a plant source preservative eugenol and an aggregation-induced emission (AIE) copper nanocluster carried on the gel substrate. The cerium ions serve as a bridge between the gel and the copper nanoclusters, the copper nanoclusters are anchored to the gel, and indicator leakage is prevented. Besides, the porous gel structure realizes an embedding effect on eugenol, and cerium ions induce the copper nanoclusters to gather on the surface of the gel, so that eugenol is further blocked in a gel substrate. When the freshness of the aquatic product is reduced, the copper nano aggregate responds to the TVB-N, the structure disintegrates, the fluorescence intensity of the label is reduced, and the visual detection of the freshness is realized. In the aspect of preservation, a multi-factor trigger eugenol release mechanism is designed, so that the gel label can quickly respond to food quality change, and integration of food freshness monitoring and intelligent preservation is realized.

Methods of making bioactive compound-loaded nanoparticles are provided. The methods harness naturally-occurring biopolymers to produce nanoparticles from raw plant materials. Methods include contacting plant-derived materials with alkaline solution with agitation to deprotonate the bioactive materials and biopolymers to form nanoparticles. In some forms, the methods contact the nanoparticle with an acid to re-protonate the components and more stable nanoparticles. The bioactive compounds can be extracted from raw plants and / or plant parts, including turmeric, ginger, clove, thyme, pepper, and rosemary. The bioactive compounds include curcumin, gingerols, shogaols, eugenol, thymol, carvacrol, capsaicin, and rosmarinic acid. Compositions and formulations containing bioactive-compound loaded nanoparticles are also provided.

The present invention relates to a biopesticidal composition comprising combination of elemental sulphur and at least one biochemical pesticide selected from thymol and eugenol or their derivatives. The invention particularly relates to a biopesticidal composition comprising elemental sulphur in the range of 1% w / w to 90% w / w of the total composition; at least one biochemical pesticide in the range of 0.1% w / w to 30% w / w of the total composition wherein the biochemical pesticide is selected from thymol and eugenol or their derivatives; and at least one agriculturally acceptable excipient in the range of 5% w / w to 98% w / w of the total composition. The composition has particles in the size range of 0.1 micron to 50 microns. The present invention also relates to a method for protecting the plant against pests or diseases by treatment of plant, plant propagation material, locus, parts thereof or the surrounding soil with a biopesticidal composition comprising of an effective amount of elemental sulphur; an effective amount of at least one biochemical pesticide selected from thymol and eugenol or their derivatives and at least one agriculturally acceptable excipient.

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 a multi-component refined compound of clove obtained by dry distillation, its preparation method, and its application. The preparation method involves: placing clove powder in a high-temperature dry distillation reactor for localized puffing reaction to obtain eugenol; mixing the puffed clove powder with a composite solvent and then repeatedly heating and extracting the mixture to obtain a precursor of the refined compound; centrifuging the precursor and collecting the supernatant to obtain the final product. This method, through localized puffing reaction, significantly increases the bulkiness of the clove powder, effectively enhancing the release of aroma compounds such as eugenol, acetyleugenol, and caryophyllene from the clove; using this refined compound as a flavoring agent in heated non-combustible cigarettes effectively improves the richness and fullness of the smoke.

The utility model relates to the technical field of eugenol preparation quantitative sampling, and discloses an eugenol preparation quantitative sampling device which comprises a sampling tube, a limiting plate arranged above the sampling tube, an air bag arranged in the limiting plate, an air channel arranged at the bottom of the limiting plate and communicated with the inside of the sampling tube, and a central tube arranged in the sampling tube, two groups of limiting mechanisms are mounted in the sampling pipe and comprise a limiting block I and a limiting block II, round blocks are mounted at two ends of the central pipe, a moving block is mounted on one side of the round block at the top end of the central pipe, the two groups of round blocks are positioned in the two groups of limiting mechanisms, and a moving groove is formed in one side, close to the limiting plate, of the sampling pipe. One side of the circular block penetrates through the moving groove and extends to the outside; according to the technical scheme, a worker can more conveniently and quantitatively sample a solution, the phenomenon that the solution overflows or falls off after sampling is completed is avoided, and the practicability of the device is improved.

The invention relates to the technical field of building energy conservation, heat preservation and heat insulation materials, and discloses a flame-retardant phase-change heat preservation and heat insulation building material and a preparation method thereof.The preparation method of the flame-retardant phase-change heat preservation and heat insulation building material comprises the following steps that paraffin is loaded in ZnO / CuO hollow microspheres to obtain phase-change microspheres; modifying the phase change microspheres with polydopamine and acryloyl chloride to obtain functionalized phase change microspheres; the preparation method comprises the following steps: carrying out graft polymerization on a phosphorus-containing eugenol compound and 1-amino-5-hexene-2-alcohol on the functionalized phase change microspheres to obtain multifunctional phase change microspheres; polyether polyol, functionalized polyol, myricetin, multifunctional phase-change microspheres and the like are used as raw materials, foaming is performed, and the flame-retardant phase-change heat-preservation and heat-insulation building material is obtained. The flame-retardant phase-change heat-preservation and heat-insulation building material is excellent in heat-preservation and heat-insulation performance, flame-retardant performance and mechanical performance, has anti-ultraviolet performance and antibacterial and mildew-proof performance, can reduce erosion damage caused by external conditions, and prolongs the service life.

This invention provides a broad-spectrum antibacterial natural active ingredient nanoemulsion, its preparation method, and its application, relating to the field of food preservation technology. The preparation method of the broad-spectrum antibacterial natural active ingredient nanoemulsion provided by this invention includes the following steps: mixing soy protein isolate and citrate buffer to obtain an aqueous phase solution; mixing thymol, eugenol, ginger essential oil, spearmint oil, and soybean oil to obtain an oil phase solution; mixing the aqueous and oil phase solutions and performing shearing treatment to obtain a crude emulsion; and subjecting the crude emulsion to ultrasonic disruption to obtain the broad-spectrum antibacterial natural active ingredient nanoemulsion. This invention can improve the stability and water solubility of active ingredients such as eugenol, thymol, carvone, limonene, and α-soybeanene, improve their antibacterial properties, and effectively extend the shelf life of refrigerated prepared meat products.

The present invention relates to a mixture of volatile organic compounds (VOCs) for insect repellency, in particular for aphids, which comprises as VOCs at least linalool and eugenol. The invention also relates to an insect repellent composition comprising said mixture, and its use in agriculture, in particular in fields for protecting plants against damage caused by insect pests.

The present invention relates to the technical field of coating materials, and in particular to an environmentally friendly coating for long-term inhibition of tobacco beetles and a preparation method thereof, comprising the following raw materials: modified Fe-MOG, Cr-ZnGa2O4 nanospheres, hydroxypropyl methylcellulose, polylactic acid, bentonite, menthol, eugenol, matrine and tea polyphenols. In the present invention, the modified Fe-MOG, Cr-ZnGa2O4 nanospheres and natural plant extracts form a composite controlled-release structure with moisture-heat adaptive closure and weak light-triggered release, synergistically achieving long-term inhibition of tobacco beetles and ensuring the morphological stability of the coating in a high-temperature and high-humidity environment. In a high-temperature and high-humidity environment, the pores of the modified Fe-MOG shrink, combining the hydrophobic phosphate groups on the surface and the dense structure of the Cr-ZnGa2O4 nanospheres to form a nano-barrier layer, which inhibits the rapid dissipation and thermal degradation of the active ingredients. The Cr-ZnGa2O4 nanospheres induce the modified Fe-MOG micro-pores to open and release the active ingredients by forming a micro-thermal stress zone, while achieving a non-chemical auxiliary insect inhibition effect.

The invention relates to the technical field of organic synthesis, in particular to a one-pot method for preparing vanillin by taking eugenol as a raw material, which comprises the following steps: (a) mixing eugenol and a compound additive according to a mass ratio of 1: (0.2-0.5), and uniformly stirring to obtain a premix; (b) adding an oxidizing agent into the premix, and carrying out primary oxidation reaction at 40-60 DEG C for 30-60 minutes to obtain an intermediate product; (c) adding a supported catalyst into the intermediate product, and carrying out oxidation reaction at 80-100 DEG C for 2-4 hours to obtain an oxidation reaction solution; (d) cooling the oxidation reaction liquid to room temperature, removing the catalyst through centrifugal separation, and collecting a liquid layer; and (e) carrying out reduced pressure distillation on the liquid layer, and collecting fractions to obtain vanillin. According to the scheme, through the synergistic effect of the compound additive, the staged oxidizing agent and the supported catalyst, an efficient conversion molecule-interface-catalytic system is constructed, and high purity and high yield are obtained.

The invention relates to the technical field of separation and purification, in particular to a method for preparing eugenol from clove oil plants, which comprises the following steps: (a) mixing clove buds or leaves with perlite according to a mass ratio of 1: (1.5-2) to obtain a mixture; (b) an anti-oxidation composite liquid is added into the mixed material, the mixture is stirred to be uniform and then left to stand, a pretreated material is obtained, and the anti-oxidation composite liquid comprises ascorbic acid, citric acid and glycerin; (c) loading the pretreated material into a distillation device, carrying out gradient heating steam distillation, and collecting condensate; (d) performing low-temperature vacuum concentration on the condensate to obtain crude eugenol; and (e) mixing the crude eugenol with a molecular sieve according to a mass ratio of 1: (3-5), adsorbing, and filtering to obtain refined eugenol. The invention provides an efficient, stable and environment-friendly eugenol purification method, by introducing a novel protective agent system and a staged temperature control rectification technology, the occurrence rate of thermal decomposition and oxidation reaction is remarkably reduced, and the product purity and the production efficiency are improved.

The application discloses application of eugenol in preparation of a bacteriostatic agent for enhancing symbiotic nitrogen fixation efficiency of legume-rhizobium, and relates to the field of agricultural microorganisms. ‑1 The application is safe and non-inhibiting to seed germination of Medicago polymorpha and target rhizobium LL2 in a concentration range of 500-1000 muL / L ‑1 of eugenol, can significantly reshape rhizosphere microbial community structure by selectively inhibiting competitive microorganisms such as bacillus and streptomyces in soil, and is environment-friendly and free of antibiotic residue risk, thereby providing a green and efficient new approach for improving symbiotic nitrogen fixation efficiency of legume-rhizobium.

The invention relates to a lasting fragrance-retaining essence, a laundry composition containing the same and a preparation method, and belongs to the technical field of laundry essences. The laundry composition comprises the following components: a surfactant, propylene glycol, glycerol, triethanolamine, disodium ethylene diamine tetraacetate, polyethylene glycol distearate, citric acid, an antibacterial agent, a preservative, an enzyme agent and essence. The modified caragana microphylla fiber and chitosan form a network structure, the prepared adsorption particles adsorb the essence more, the adsorption particles are subjected to a copolymerization reaction with methyl acrylate and eugenol to form a coating layer structure, the essence can be well protected, and the coating layer is slow in decomposition and has long-term stability, so that the laundry composition can keep fragrance for a long time.

The invention discloses a formula and a preparation method of a quick-acting analgesic tincture external spraying agent, and belongs to the technical field of external spraying agents, the quick-acting analgesic tincture external spraying agent comprises the following raw materials in parts by weight: a group A: 25kg of radix clematidis, 20kg of radix saposhnikoviae, 20kg of rhizoma zingiberis, 20kg of radix angelicae, 20kg of rhizoma drynariae, 20kg of notopterygium root, 15kg of corydalis tuber, 15kg of radix aconiti preparata, 15kg of radix aconiti kusnezoffii preparata and 15kg of frankincense preparata; the traditional Chinese medicine is prepared from 15 kilograms of prepared myrrh, 15 kilograms of ligusticum wallichii, 10 kilograms of ephedra, 10 kilograms of asarum, 5 kilograms of saffron crocus (240 kilograms of 15 parts) and 1200 kilograms of ethanol. The group B comprises 15 kilograms of camphor, 5 kilograms of storax oil, 3 kilograms of vanillyl butyl ether and ethanol (the dosage is 300-900% of the total weight of the medicines), the prepared'ten-full-pain quick-napping 'tincture is generally used for various arthralgia pains caused by wind-cold-dampness stasis, and aims at the etiology and symptoms of arthralgia, cold-dampness pains, blood stasis pains, spasm pains and wind-excess channeling pains, medicine symptoms are combined, both symptoms and root causes are taken into consideration, and the traditional Chinese medicine tincture can be used for treating various arthralgia pains caused by wind-cold-dampness stasis. The composition has the advantages of quick transdermal effect, quick effect, broad effect, special effect, safety and convenience, and meets the fast-paced life of modern people and the high requirements on health, high efficiency, convenience and safety. The promotion and popularization of the invention will surely produce great social and economic benefits.

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.

The invention relates to the technical field of membrane material preparation, and particularly discloses a composite membrane loaded with a metal organic framework material and a preparation method and application thereof.Co2 + doping is conducted on a ZIF-8 framework, the electronic structure of the ZIF-8 framework is changed through introduction of Co2 +, the overall polarity is reduced, and therefore the interaction force between the ZIF-8 framework and eugenol molecules is enhanced; the adsorption capacity of the ZIF-8 material on the clove essential oil is improved, so that the antibacterial property and the oxidation resistance of the composite membrane material are improved; then a copolymerization reaction is initiated through free radicals, a layer of functional polymer is grafted on the surface of the double-bond modified MOF, the surface of the organically modified MOF has higher affinity to eugenol molecules, diffusion and adsorption processes of clove essential oil molecules to internal pore channels of the MOF are promoted, and the loading capacity of the clove essential oil is improved; the antibacterial property and the oxidation resistance of the composite membrane material are further improved.

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 discloses a theaflavin nano-composite with whitening and moisturizing effects, which is mainly prepared from theaflavin as an active component, an encapsulation carrier and a synergistic component, and has a core-shell structure with theaflavin as a core and a three-dimensional network formed by the encapsulation carrier as a shell, the purity of the theaflavin is not lower than 80%, and the mass ratio of the theaflavin-3-gallate to the theaflavin-3 '-gallate is 1: (0.8-1.2); the encapsulation carrier comprises modified silk fibroin, activated tamarind seed polysaccharide and self-assembly oligopeptide with pH responsiveness, and a three-dimensional network is formed through reaction; the synergistic interaction components are 2-o-ethyl ascorbic acid and eugenol. The invention also discloses a preparation method and application of the compound. The theaflavin nano-composite prepared by the invention has the advantages of high stability, good bioavailability, capability of quickly releasing active matters on the surface of skin in a weakly acidic environment, and realization of whitening and moisturizing effects.

The application discloses a kind of effectively prevent and control Gang Mei branch blight of nuisance pesticide and prevention and control method and application, specifically including the following components: methyl jasmonate 100-150mg / L, table 24-rape sprout lactone 0.01-0.5mg / L, 6-benzyl adenine 20-50mg / L, triacontanol 0.5-1mg / L, chitosan 300-600mg / L, organic silicon 100-400mg / L, phenylalanine 5-50mg / L, mannitol 5-30mg / L, betaine 50-300mg / L, 2 hydrated calcium chloride 150mg / L, eugenol 250mg / L, isopropenyl-5-chlorobenzimidazolone 0.02-0.05mg / L, alkyl phenol formaldehyde resin polyvinyl ether 800-1000mg / L, ethanol 10000-30000mg / L.The application is compounded by plant growth regulator, inorganic matter, amino acid and other components, induces Gang Mei planting seedling, so that it systematically obtains resistance, enhances defense, inhibits Gang Mei branch blight, stabilizes cell membrane and improves the ability of anti-abiotic adversity, and also helps to improve the content of Gang Mei medicinal component secondary metabolite.The pesticide prepared by the application does not contain pesticide chemical component, is safe, non-polluting, simple in use method, and can effectively prevent and control Gang Mei branch blight, improve Gang Mei yield, quality and medicinal value.

The invention relates to a cyclodextrin grafted polyquaternary phosphonium salt eugenol ester antibacterial material, which has the following structure: m is the number of structural units of cyclodextrin, namely m = 1, m = 2 or m = 3; r1 is-CN or-CH3; r2 is phenyl or butyl; the anion X is one of Br <->, F <->, Cl <->, I <->, OH <->, CN <->, SCN <->, BF4 <->, PF6 <->, SO4 < 2->, CO3 < 2-> or AlCl4 <->, and X refers to the type of the anion; p is 0 or 2; x is 0 or 2; n is the grafting degree; y is the number of structural units of the quaternary phosphonium salt eugenol ester monomer; the product of y and n is the degree of polymerization, and P in-P-(R2) 3 refers to phosphorus element and is positive charge of quaternary phosphonium salt. Meanwhile, the invention further discloses a synthesis method of the antibacterial material. The cyclodextrin grafted polyquaternary phosphonium salt eugenol ester prepared by the invention has excellent antibacterial performance and good biocompatibility, can be applied to antibacterial coatings, medical devices or surface bacteriostasis of daily necessities and the like, and is a novel antibacterial material with potential application prospects.

The invention discloses a syringate compound capable of preventing and treating barn pests as well as a preparation method and application of the syringate compound. The syringate compound has the following molecular structure expression, and according to the design, the light stability is enhanced by utilizing a rigid cyclic structure of chrysanthemic acid, and the CarE activity can be inhibited through a propenyl side chain of eugenol, so that self metabolism inactivation of pyrethrin is blocked; .

The invention discloses an L-carnitine-based ionic liquid aqueous two-phase system as well as a preparation method and application thereof, and belongs to the technical field of aqueous two-phase system separation. The prepared L-carnitine-based ionic liquid aqueous two-phase system is a novel ionic liquid aqueous two-phase system which is more efficient when active substances are extracted (extraction and separation can be achieved by stirring for 30 min and centrifuging for 5-8 min at the speed of 6000-8000 rpm), the extraction rate of vanillin, eugenol, p-hydroxybenzaldehyde, syringaldehyde and vanillic acid reaches 85.37% or above, and the L-carnitine-based ionic liquid aqueous two-phase system is a novel ionic liquid aqueous two-phase system. The method can be applied to the fields of organic compound extraction, medicine extraction, environmental protection and the like, and has a great development prospect.