2727 results about "Essence oil" patented technology

The invention discloses a dynamic optimization system and method for a compound essential oil ratio, and aims to solve the problems that the traditional technology depends on artificial experience, the optimization efficiency is low and the quality tracing is insufficient. According to the method, raw material molecular fingerprint data are collected in real time through a high-precision spectrum sensor array and a micro-fluidic chip, a production environment field domain is constructed in combination with a computational fluid mechanics model, a formula optimization problem is encoded into an Ising model by using a quantum annealing algorithm, and global search is realized through a quantum tunneling effect. The system integrates digital twin bodies, covers molecular dynamics simulation, phase equilibrium prediction and olfactory receptor activation probability simulation, and accurately maps a physical system state; a multi-modal data fusion network and a reinforcement learning framework are adopted to dynamically adjust formula parameters, and an NSGA-III algorithm is combined to optimize efficacy collaboration degree, cost and stability indexes. And the execution control module realizes nanoscale flow regulation through the piezoelectric micro-injection valve array, and realizes non-tampering evidence storage of formula parameters and quality data based on a block chain technology. Dynamic closed-loop optimization of the compound essential oil ratio is achieved, the production efficiency, the product consistency and the supply chain transparency are remarkably improved, and the method is suitable for the field of intelligent manufacturing of high-end essential oil.

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.

Formulations of pesticides are disclosed, specifically pesticidal blends of essential oils and other ingredients, that have been found to enhance the activity of the active pesticidal ingredients. The formulations may be, for example, emulsions or dust formulations. For example, a composition for controlling a target pest is disclosed that comprises at least one active agent and a formulation agent, wherein: the active agent is capable of interacting with a receptor in the target pest; the active agent has a first activity against the target pest when applied without the formulation agent and the composition has a second activity against the target pest; and the second activity is greater than the first activity.

The invention belongs to the field of biological organic fertilizers, and discloses a special organic selenium-rich fertilizer for grapes as well as a preparation method and application thereof. The fertilizer is prepared from the following raw materials in percentage by mass: 0.05-0.2% of a selenium complex, 2-15% of a stabilizer, 15-25% of a microbial fermentation product, 0.5-2.0% of a natural plant extract and the balance of auxiliary materials, totaling 100%. The microbial fermentation product is microbial fermentation liquid obtained by fermenting bacillus tequilensis and cyanobacteria; the auxiliary material is obtained by mixing sodium alginate and maltodextrin; the natural plant extract is obtained by mixing azadirachtin, sophocarpidine, tea tree essential oil and cnidium lactone. Through the synergistic effect of the microbial fermentation product, the natural plant extract and the auxiliary materials, the industrial problem that in the prior art, a selenium fertilizer can only improve the selenium content of grapes, but cannot effectively improve the disease resistance and insect pest resistance of the grapes and slow down selenium element loss is solved, and the double improvement of the grape quality and the selenium content is achieved.

The invention relates to the technical field of plant cultivation, in particular to a phoebe bournei compound management method for cultivating long phoebe bournei with short phoebe bournei, which comprises the following steps: removing all plants on a forest land, and marking a management mode of a planting belt as follows: at least one line of phoebe bournei and one line of melaleuca alternifolia are interplanted, the line spacing of phoebe bournei is 2-3m * 3-7m, and the plant line spacing of melaleuca alternifolia is 1-3m * 1-3m; after phoebe bournei seedlings are subjected to seedling strengthening treatment, the phoebe bournei seedlings and melaleuca alternifolia are subjected to afforestation together, the melaleuca alternifolia are subjected to stubble cutting from January to February of the second year of afforestation and field planting, the stubble height is 10-35 cm, branches and leaves are taken to extract melaleuca alternifolia essential oil, waste generated through extraction and animal waste are mixed according to the ratio of 1: (1-2) for composting, organic fertilizer is obtained, and the organic fertilizer is applied in winter. Compared with the prior art, after the phoebe bournei is subjected to seedling strengthening treatment, the phoebe bournei is interplanted with the melaleuca alternifolia, the plant height, the ground diameter and the maximum crown breadth of the phoebe bournei are increased, and the economic benefit of a man-made forest is increased by means of short cultivation and long cultivation.

The invention discloses a plant composition with skin anti-aging activity and a preparation thereof. The plant composition is prepared from the following active ingredients in percentage by weight: 84.0 to 89.0 percent of haematococcus pluvialis extract, 8.0 to 12.0 percent of lithospermum oil, 0.5 to 0.8 percent of melaleuca alternifolia leaf oil, 0.5 to 1.0 percent of hydrolyzed olive leaf extract, 0.1 to 0.5 percent of rhodiola rosea root extract and 1.2 to 2.5 percent of bitter orange leaf oil. The plant composition with the skin anti-aging activity is used as an effective component, other auxiliaries are added, and emulsion, cream or essence oil is prepared. According to the plant composition and the preparation, the fermented camelina seed oil, the fermented safflower seed oil, the fermented meadowfoam seed oil and the like are used as solvents for extracting active components in haematococcus pluvialis and are also used as functional components and matrixes of the preparation, and compared with application of original plant oil, the plant composition and the preparation have better skin feeling and biological activity; the extraction rate of active ingredients in haematococcus pluvialis is higher, and transdermal absorption of the active ingredients is facilitated.

The invention discloses a preparation method of ocimum gratissimum carbon dots and application of the ocimum gratissimum carbon dots in antibacterial drugs and food preservation. The preparation method of the ocimum gratissimum carbon dots comprises the following steps: performing steam distillation on ocimum gratissimum leaves to remove essential oil, drying in the shade, and crushing; adding an alcohol solvent into the powder, extracting, filtering, concentrating and drying to obtain an alcohol extract; dispersing the alcohol extract in distilled water, and stirring and pyrolyzing on a heating table; and diluting the pyrolysis product with distilled water, centrifuging, taking supernate, filtering with a filter membrane, dialyzing, and freeze-drying to obtain the carbon dots. The obtained carbon dots have a carbon dot-vesicle coexisting structure, and the average particle size is 5.732 + / -0.5 nm. The prepared ocimum gratissimum carbon dots can be applied to preparation of antibacterial drugs, especially drugs for inhibiting the activity of bacillus cereus and listeria, and the field of food preservation, and have the advantages of being wide in raw material source, simple in preparation method, low in cost, environmentally friendly and the like.

The invention provides an insecticidal pesticide synergistic additive containing plant essential oil and a preparation method thereof, and belongs to the technical field of pesticide synergists. The insecticidal pesticide synergistic aid containing the plant essential oil comprises a synergist matrix, a penetrating agent, an emulsifying agent, a thickening agent, an anti-freezing agent and the plant essential oil. The main component of the synergistic additive is esterified vegetable oil or fatty acid alkyl ester, and the synergistic additive has the advantages of low toxicity, difficult generation of drug resistance of target organisms, environmental friendliness and the like, and can be mixed with a penetrant, an emulsifier and a thickener for use, so that the wetting and infiltration capacity of pesticide liquid can be remarkably enhanced, a wax layer structure can be destroyed, the permeability of the pesticide liquid can be improved, and the pesticide effect can be improved. The added plant essential oil belongs to a natural active substance, has the characteristics of being green and environment-friendly, and can be matched with different pesticide formulations such as insecticides, bactericides, herbicides and the like for use.

The invention belongs to the technical field of hair dyes, and particularly relates to an ammonia-free low-sensitivity essential oil composition for hair dyeing as well as a preparation method and application of the ammonia-free low-sensitivity essential oil composition. The ammonia-free low-sensitivity essential oil composition for hair dyeing is prepared from the following components: coconut oil, camellia seed oil, grape seed oil, macadamia seed oil, simmondsia chinensis seed oil and squalane. The ammonia-free low-sensitivity essential oil composition provided by the invention can simultaneously meet the effects of low irritation, high coloring effect and high dyeing durability.

The invention belongs to the technical field of hair dyes, and particularly relates to a high-grease repairing ammonia-free low-sensitivity essential oil hair dye cream and a preparation method thereof. The ammonia-free low-sensitivity hair dye comprises the following raw materials in percentage by mass: 32-40% of ammonia-free low-sensitivity essential oil, 5-12% of an emulsifier, 5-10% of a thickener, 3-6% of a hair dye, 3-5% of a pH regulator, 1-3% of a humectant, 0.4-0.8% of an antioxidant, 0.1-0.5% of essence, 0.1-0.3% of a chelating agent, 0.05-0.15% of keratin and the balance of water. The ammonia-free low-sensitivity essential oil is a mixture of coconut oil, camellia seed oil, grape seed oil, macadamia nut seed oil, simmondsia chinensis seed oil and squalane. The high-grease repair ammonia-free low-sensitivity essential oil hair dyeing cream provided by the invention can simultaneously meet the effects of lasting color fixation, repair performance and stable storage.

The invention relates to the technical field of preparation of viscose fibers, in particular to a preparation method of viscose fibers based on wormwood essential oil / paraffin double-layer microcapsules, which comprises the following preparation steps: S1, preparing the wormwood essential oil / paraffin double-layer microcapsules; s2, preparing a microcapsule spinning solution; s3, spinning and forming. According to the invention, the wormwood essential oil is coated in the double-layer microcapsule, so that the natural antibacterial property of the wormwood essential oil is fully exerted. Main active components (such as eucalyptol and flavonoid compounds) of the wormwood essential oil are continuously released through a microcapsule slow release mechanism, and growth of common pathogenic bacteria such as escherichia coli and staphylococcus aureus is remarkably inhibited. Meanwhile, due to the double-layer structure (the polyurethane inner shell and the polyurea outer shell) of the microcapsule, volatilization and oxidation of the wormwood essential oil in the spinning process are effectively avoided, and the long-acting antibacterial effect is ensured.

The present invention provides an anti-fatigue essential oil composition and a preparation method thereof, belonging to the technical field of compound essential oils. The essential oil composition comprises a compound essential oil and a eutectic composition; the compound essential oil comprises 1 to 25 parts of Torreya grandis aril essential oil, 1 to 20 parts of cinnamon leaf essential oil, 1 to 20 parts of lemon essential oil, and 1 to 15 parts of ginger essential oil; the eutectic composition comprises 1 to 3 parts of borneol and 1 to 10.5 parts of menthol. A potassium citrate solution is added to Torreya grandis arils, a sodium acetate solution is added to cinnamon leaves, a potassium citrate solution is added to fresh lemons, and purified water is added to ginger. The juices are squeezed separately and then distilled to obtain Torreya grandis aril essential oil, cinnamon leaf essential oil, lemon essential oil, and ginger essential oil. The present invention combines the four essential oils in a proportioned mixture to produce a compound essential oil, and adds the eutectic composition to produce an essential oil composition. The essential oil composition has significant fatigue-relieving and mentally refreshing effects, and is not easily tolerated.

The invention discloses a lasting aromatic lyocell fiber of a biological enzyme immobilized temperature-sensitive microcapsule and a preparation method of the lasting aromatic lyocell fiber, and relates to the technical field of polyester fabrics. The method comprises the steps that firstly, a temperature-sensitive microcapsule of a three-layer structure is prepared, an inner core contains aromatic substances of lavender essential oil, ambrota ether and rosin glycerin ester, a middle layer enables N-isopropylacrylamide monomers to be polymerized to form PNIPAM temperature-sensitive hydrogel, and a shell is a nanocellulose crystal-polydopamine compound; then spinning by taking the NMMO aqueous solution containing the microcapsules as an inner layer solution and taking the NMMO aqueous solution containing the eucalyptus pulp as an outer layer solution by adopting a coaxial micro-fluidic spinning technology; and finally carrying out crosslinking treatment through a biological enzyme coagulating bath, wherein the coagulating bath contains an NMMO aqueous solution, horse radish peroxidase and a hydrogen peroxide solution with gradient concentration. The aromatic lyocell fiber prepared by the invention has excellent temperature-sensitive aroma release performance and washing fastness, and solves the technical problems that microcapsules in traditional aromatic textiles are easy to break and fall off and aromatic substances are easy to volatilize.

The invention discloses a preparation process of a pure plant essential oil disinfectant, and relates to the technical field of disinfectants. The problems that plant essential oil is poor in solubility in a water phase, low in stability and the like are solved. The method specifically comprises the following steps: preparing raw materials; preparing a nano emulsion; preparing a solvent and mixing; constructing a natural stable system to obtain a primary product; filtering and sterilizing; and carrying out sterile filling on the disinfectant finished product. The invention provides a pure plant essential oil disinfectant prepared by dissolving type 1 and 8 melaleuca alternifolia essential oil in water, efficient dispersion is realized through a nano-emulsification and natural stabilization technology so as to form a stable aqueous solution, an amphiphilic structure of soapbark saponin is utilized, aglycone and essential oil terpene form a supramolecular compound, and the stable aqueous solution can be used for sterilizing the melaleuca alternifolia essential oil and the melaleuca alternifolia essential oil and the melaleuca alternifolia essential oil. The technical problems of poor dissolvability and low stability of plant essential oil in a water phase are solved, and the plant essential oil has broad-spectrum antibacterial and antiviral characteristics and can meet the disinfection requirements in multiple fields such as medical treatment, object surface treatment, home furnishing and personal care.

The invention relates to an o / w type high-content composite essential oil nanoemulsion and a preparation method and application thereof.The median particle size of the composite essential oil nanoemulsion is not larger than 45 nm, and the composite essential oil nanoemulsion comprises plant essential oil, polyethylene glycol glycerol ricinoleate with the HLB value being 10-14, a cosolvent, water, vitamin E acetate and ethylene diamine tetraacetic acid disodium salt. The plant essential oil is selected from two or more of carvacrol, cinnamyl aldehyde, capsicum oleoresin and thymol. The compound essential oil nanoemulsion solves the key technical problem of high-content load compound nanoemulsion of various plant essential oils, is beneficial to exerting the synergistic effect of different essential oils, and reduces the addition amount of the essential oils while achieving the same physiological function. Besides, the particle size of the composite essential oil nanoemulsion reaches the nanoscale, the composite essential oil nanoemulsion can form homogeneous-phase clear liquid, can be quickly diffused in a waterline or a water environment, is more beneficial to absorption, has the advantages of good stability and long storage life, and is more competitive in practical application.

The invention relates to the technical field of plant essential oil products, and discloses a refreshing composition based on plant essential oil and a preparation method thereof.The method comprises the steps that an essential oil composition containing menthol, borneol, lime oil, patchouli oil, lavender oil, basil, pelargonium graveolens oil, clove oil and eucalyptus globulus leaf oil is prepared; constructing an ionic gel slow-release base layer; forming a plant source emulsifier composite two-phase system; and adding a light protection and anti-oxidation protection layer. According to the invention, the stability of the essential oil composition in an environment with change of illumination, temperature and humidity is remarkably improved, precise controlled release of essential oil components is realized, and the technical problems that a traditional essential oil product is easy to volatilize and poor in stability and different hydrophilic essential oil components are difficult to effectively load and release at the same time are solved.

The invention discloses an environment-friendly composite tree wound healing agent and a preparation method and application thereof, and belongs to the technical field of garden maintenance, the environment-friendly composite tree wound healing agent comprises the following raw materials by weight: 40-70 parts of a film forming substrate, 10-20 parts of an active component, and 10-20 parts of a functional auxiliary agent; the film-forming substrate is prepared from the following raw materials in parts by weight: 10 to 20 parts of chitosan, 20 to 30 parts of modified starch and 10 to 20 parts of vegetable wax; the active component is prepared from the following raw materials in parts by weight: 0.1 to 0.5 part of indolebutyric acid, 5 to 10 parts of tea tree essential oil, 3 to 5 parts of radix scutellariae extract, 1 to 2 parts of zinc sulfate and 0.5 to 1 part of boric acid; the functional additive comprises the following raw materials in parts by weight: 2-5 parts of nano titanium dioxide, 3-5 parts of a thickening agent and 5-10 parts of a humectant; the positive effect is achieved on tree wound healing.

The invention belongs to the technical field of application of natural extracts, and particularly discloses application of Boswellia amoena essential oil in prevention and treatment of aquatic diseases, in particular application of Boswellia amoena essential oil in inhibition of shewanella algal and vibrio alginolyticus. According to the application, various plant essential oils are tested, the bacteriostatic activity of the plant essential oils on two marine vibrios, i.e., shewanella alginate and vibrio alginolyticus, is researched by a filter paper method and a gradient dilution method, and GC-MS analysis is further performed on several essential oils; according to comprehensive analysis, the frankincense Aman has a remarkable effect on inhibiting shewanella and vibrio alginolyticus, and reference can be provided for application of the frankincense Aman essential oil to prevention and treatment of aquatic diseases.

The invention discloses a DA bond polymer with antibacterial and self-repairing functions for a wood surface as well as a preparation method and a use method of the DA bond polymer. Chitosan serves as a wall material, cinnamon essential oil serves as a core material, the cinnamon essential oil and chitosan antibacterial microcapsules are prepared through emulsification, crosslinking and spray drying, and essential oil controlled release is achieved. Then bisphenol A diglycidyl ether DGEBA and furfuryl alcohol FA are used as raw materials, furyl functional epoxy resin FER is prepared under the catalysis of triethylamine TEA, bismaleimide BMI is added, and a DA bond self-repairing polymer is prepared through a DA reaction; and adding 4, 4-diaminodiphenylmethane DDM into the system, reacting with redundant DGEBA to generate a cross-linked polymer network, and adding the microcapsules into a DA bond semi-interpenetrating self-repairing network solution to obtain the DA bond polymer. A thin film formed by brushing and curing wood has antibacterial and self-repairing functions, scratches and microcracks on the surface of the wood can be repaired, and microbial erosion is inhibited.

The present invention relates to the technical field of aromatherapy, and specifically discloses a compound essential oil for alleviating anxiety, its preparation method and application. A compound essential oil for alleviating anxiety comprises raw materials in the following parts by mass: 50 - 65 parts of sweet almond oil, 12 - 16 parts of French lavender oil, 0.5 - 1.2 parts of Xinjiang lavender oil, 6 - 9 parts of cypress oil essential oil, 1 - 3 parts of Virginia cypress oil, 0.1 - 0.3 parts of complete ylang-ylang oil, 0.7 - 1.3 parts of Xinjiang sclareol oil, 2 - 4 parts of bergamot oil, and 2 - 4 parts of eucalyptus oil. The preparation method of the compound essential oil for alleviating anxiety is to mix the raw materials to obtain the compound essential oil. The present application also provides an application of the compound essential oil for alleviating anxiety in aromatherapy products. The compound essential oil for alleviating anxiety in the present application has obvious effects of alleviating anxiety emotions and improving sleep quality.

1. The name of the design product: detachable essential oil brush (LMZ376). 2. The use of the design product: the design product is used for essential oil brush. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The invention belongs to the technical field of daily chemicals, and discloses a vegetable oil and essential oil composition and application thereof. The plant oil and essential oil composition is prepared from the following components in parts by weight: 50 to 80 parts of crambe abyssinica seed oil, 5 to 20 parts of rosa rugosa seed oil, 8 to 15 parts of evening primrose oil, 2 to 15 parts of acanthopanax gracilistylus root and bark extract and 1.2 to 5 parts of jasminum grandiflorum extract. The vegetable oil and essential oil composition is added into massage oil and can go deep into the bottom layer of skin, inhibit generation and release of inflammatory factors, relieve inflammatory response of the skin, relieve symptoms such as red and swollen, pain and itching caused by inflammation, balance grease secretion of the skin, promote blood circulation of the skin and relieve inflammation. The elasticity and luster of the skin are improved, the formation of stains and darkness is reduced, and the skin is brighter and more uniform.

The invention belongs to the technical field of sleep-aiding gels, and discloses a herbal sleep-aiding gel and a preparation process thereof, the gel comprises the following components: deionized water, propylene glycol, glycerol, carbomer 980 and triethanolamine; the mask is prepared from, by weight, 1.8% of lavender essential oil, chamomile extract, bitter orange flower essential oil, gamma-aminobutyric acid, melatonin, spina date seed extract, xylaria nigripes extract and phospholipid wall materials. Sodium chloride and azone; camphor and borneol; eDTA (Ethylene Diamine Tetraacetic Acid) disodium, phenoxyethanol and ethylhexylglycerin. The traditional Chinese medicine composition is suitable for people with sleep disorders such as long-term insomnia, difficulty in falling asleep, insomnia and dreaminess, easy awakening due to light sleep, restlessness and depression and the like; through the high transdermal absorption rate of a nano micro-capsule technology, in combination with a colloid double-electrode-layer structure, capacitance-like micro-current is generated, in cooperation with lavender-chamomile-bitter orange flower and other herbal essence and GABA and melatonin active ingredients, the sleep center is adjusted in a multi-channel mode, and the physical sleep-aiding scheme is a new physical sleep-aiding scheme for safely replacing a sleeping drug.

The invention belongs to the technical field of non-woven fabrics, and particularly relates to a tire-fat-like non-woven fabric and a preparation method and application thereof. The raw material of the tire-fat-like non-woven fabric is tire-fat-like ES fibers; the ES fibers containing the tire-like grease are obtained by padding ES fibers in a tire-like grease microemulsion and drying the ES fibers; the raw materials of the tire fat-like microemulsion comprise a tire fat-like composition, a surfactant, a cosurfactant and deionized water, the fetal fat-like composition is prepared from the following raw materials: ceramide NP, phytosphingosine, cholesterol, liquid paraffin, squalane and plant essential oil, the plant essential oil comprises olive fruit oil, shea butter, a clove extract and a radix aucklandiae extract. The tire-fat-like non-woven fabric provided by the invention has the advantages of low loss rate of active ingredients, excellent antibacterial property and storage stability.

The invention is suitable for the technical field of gynecological gels, and provides a gynecological gel with a repairing effect. Comprising the following components in percentage by weight: 0.1%-0.5% of recombinant III type human collagen, 0.05%-0.2% of mussel mucin, 1%-3% of chitosan, 0.2%-1% of sodium hyaluronate, 2%-5% of lactobacillus fermentation product filtrate, 0.05%-0.2% of tea tree essential oil, 0.2%-0.5% of carbomer, 0.1%-0.4% of triethanolamine, 0.1%-0.2% of sodium methylparaben and the balance of purified water. The gynecological gel with the repairing effect has the excellent repairing effect, integrates multiple effects of effectively resisting bacteria and diminishing inflammation, promoting repairing of damaged vaginal mucosa, adjusting vaginal micro-ecological balance and the like, not only can efficiently inhibit growth of various pathogens, but also can remarkably promote proliferation and repairing of vaginal mucosa cells, and has the advantages that the repairing effect is good, and the repairing effect is good. The vaginal micro-ecological balance can be accurately adjusted, no stimulation is caused to vaginal mucosa, safety and reliability are achieved, and long-term use can be achieved.

The invention discloses a slow-release antibacterial and antioxidant composite preservative film and a preparation method thereof. The slow-release antibacterial and antioxidant composite preservative film is prepared from a chitosan matrix and Chuzhou chrysanthemum essential oil nano-emulsion loaded in the chitosan matrix, the Chuzhou chrysanthemum essential oil nano-emulsion comprises Chuzhou chrysanthemum essential oil, a surfactant and a cosurfactant, and the average particle size of the Chuzhou chrysanthemum essential oil nano-emulsion is smaller than 200 nm; the composite preservative film has the function of slowly releasing the Chuzhou chrysanthemum essential oil and shows antibacterial and antioxidant activity; the preparation method comprises the following steps: firstly preparing Chuzhou chrysanthemum essential oil into a nano-emulsion by adopting a nano-encapsulation method through a high-pressure homogenization method to form the Chuzhou chrysanthemum essential oil nano-emulsion, then embedding the Chuzhou chrysanthemum essential oil nano-emulsion into chitosan to prepare an active chitosan composite film, and finally applying the antibacterial coating material to food preservation. The antibacterial coating film not only can effectively inhibit pathogenic microorganism infection in berry storage and logistics transportation in a wider spectrum, but also can regulate physiological metabolism of picked berries, delay the senescence process and reduce loss of internal moisture.

The invention provides a microcapsule, a molded pulp and a preparation method thereof. The preparation method of the microcapsule comprises the following steps: extracting a spice raw material by utilizing supercritical fluid to obtain essential oil; mixing essential oil with porous starch to obtain an essential oil-starch core material compound; dispersing the essential oil-starch core material compound in a composite wall material solution composed of chitosan, Arabic gum and nano cellulose to obtain an emulsion; adjusting the pH value of the emulsion to 4.0-4.2 to obtain a microcapsule suspension; and immersing the microcapsule suspension liquid into the cross-linking liquid to obtain microcapsule powder. Essential oil is subjected to supercritical extraction, the essential oil is used as a core material, porous starch is used as a carrier to form a core material compound, chitosan, Arabic gum and nano cellulose are mixed to form a composite wall material solution, and the core material compound is coated with the composite wall material solution to form a microcapsule suspension; and then the microcapsule is obtained through normal-temperature ion curing, so that efficient loading and activity protection of the essential oil can be realized, and the slow release performance is 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.

The invention relates to the technical field of plant essential oil, in particular to natural acne removing and repairing plant essential oil and a preparation method and application thereof. The natural acne removing and repairing plant essential oil is prepared from, by weight, 40-60 parts of mixed oil, 40-60 parts of lavender essential oil, 20-30 parts of tea tree essential oil, 20-30 parts of chamomile essential oil, 20-30 parts of additive liquid, 10-20 parts of grape seed oil, 6-10 parts of pomelo essential oil, 2-4 parts of solubilizer and 0.8-0.12 part of dispersing agent. According to the preparation method, mesophyll tissues in the tea leaves can be separated through enzymolysis, rough vein components in the tea leaves are removed, so that the extract is finer, the smearing comfort of essential oil is improved, the tannic acid component rich in the tea leaves is utilized, and tannic acid can inhibit growth and reproduction of bacteria in acne, so that the skin is kept in a clean state; the acne symptom is improved, and meanwhile, the recurrence rate of the acne is effectively reduced.

The invention relates to the technical field of daily chemical raw materials, and particularly discloses a soothing essential oil composition containing honeysuckle flower oil as well as a preparation method and application thereof. The soothing essential oil composition containing the honeysuckle flower oil is prepared by compounding the honeysuckle flower oil, schisandra chinensis oil, michelia alba flower oil, cypress oil, guaiacol, bergamot oil, green orange oil and spikenard oil. The traditional Chinese medicine composition has the advantage that the effect of relieving the emotion is quicker.