94 results about "Carvacrol" patented technology

The invention discloses a degradable preservative film and a preparation method thereof. The film takes nano chitosan / agarose in a ratio of 1: 1 as a matrix, contains 0.5-5wt% of PVA (Polyvinyl Alcohol), 1-4wt% of protein powder or starch, 0.2-3wt% of tea polyphenol / carvacrol, 5-20wt% of glycerol and optional 5-15wt% of polylactic acid, and is cross-linked with sodium alginate. And carrying out tape casting at 55-65 DEG C, and carrying out gradient drying at 40-50 DEG C, thereby obtaining the product. The film is compact and flexible, the breaking strength is larger than or equal to 69 MPa, the oxygen permeability is low, the inhibition zone on six germs is enlarged by 3-4 mm, 98% of natural soil is degraded 20 days later, and no toxic smoke is generated during incineration. The biodegradable film is solvent-free in preparation, can be produced by existing equipment, is lower than a traditional biodegradable film in cost, can be in direct contact with food, remarkably prolongs the fresh-keeping period of fruits and vegetables, replaces PE and PVC, and solves white pollution.

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 invention discloses an edible fish collagen-based antibacterial active membrane as well as a preparation method and application thereof. The preparation method comprises the following steps: preparing silver carp skin collagen; the preparation method comprises the following steps: preparing an epsilon-polylysine / sulfobutyl-beta-cyclodextrin / carvacrol inclusion compound; the preparation method comprises the following steps: dissolving an epsilon-PL / SBE-beta-CD / CAR inclusion compound and silver carp skin collagen in ultrapure water, carrying out a stirring reaction at a certain temperature, adding glycerin, and carrying out stirring so as to obtain a membrane casting solution; and performing ultrasonic degassing on the membrane casting solution, injecting the membrane casting solution into a mold, storing the mold in a constant-temperature and constant-humidity box with the temperature of 26 DEG C and the relative humidity of 50% for 48 hours, and uncovering the membrane to obtain the edible fish collagen-based antibacterial active membrane. The preparation method is simple in technological process, and the prepared edible fish collagen-based antibacterial active film is high in antibacterial performance and good in mechanical performance. The invention provides an effective prevention and treatment strategy for the problem of microbial pollution.

The present invention relates to the technical field of packaging materials, and discloses a preparation method of an antibacterial and antiseptic food packaging material, the antibacterial and antiseptic food packaging material includes 100 parts by weight of polyvinyl alcohol, 2-15 parts by weight of cross-linked β-cyclodextrin inclusion thyme oil, and 1-1.5 parts by weight of propylene glycol. The hyperbranched polymer cross-linked β-cyclodextrin of the present invention contains a three-dimensional hyperbranched dendritic molecular chain, has a higher inclusion amount for thyme oil, thereby including more active ingredients such as thymol and carvacrol, and is added to the polyvinyl alcohol film packaging material, significantly improving the antibacterial and antiseptic properties of the packaging material. The hyperbranched polymer cross-linked β-cyclodextrin contains a flexible polyether hyperbranched molecular chain, which has a certain toughening effect on polyvinyl alcohol, and is conducive to improving the elongation at break and the toughness of the polyvinyl alcohol film packaging material.

Provided are a cosurfactant-free microemulsion encapsulating glycyrrhetinic acid, a preparation method therefor, and use thereof. The cosurfactant-free microemulsion comprises carvacrol / thymol, a fatty acid, a nonionic surfactant, and water. Based on the mass percentage of the raw materials, the glycyrrhetinic acid accounts for 0.1-5%, the carvacrol / thymol accounts for 0.1-5%, the fatty acid accounts for 0.1-10%, the nonionic surfactant accounts for 1-30%, and the balance is made up to 100% with water. Carvacrol / thymol not only increases the solubility of glycyrrhetinic acid, but also promotes the transdermal absorption of glycyrrhetinic acid, and is a cosmetic composite efficacy composition having antioxidant, anti-inflammatory, and antibacterial effects.

The present application belongs to the technical field of pesticides, and particularly relates to a fungicidal composition for preventing and treating fusarium wilt of bitter gourd. The fungicidal composition for preventing and treating fusarium wilt of bitter gourd comprises fluazinam and carvacol or flutianil as active ingredients. The fluazinam is compounded with carvacol or flutianil by using the compounding strategy. The indoor bioactivity test shows that the compound combination has a synergistic effect on fusarium wilt of bitter gourd. Compared with single components, the compound combination can improve the prevention and treatment effect on fusarium wilt of bitter gourd, thereby effectively preventing and treating fusarium wilt of bitter gourd and providing support for developing new pesticides for preventing and treating fusarium wilt of bitter gourd.

The invention belongs to the technical field of food attractants, and particularly relates to a armyworm food attractant and application thereof. The invention relates to a armyworm food attractant, which is prepared from the following components in percentage by mass: 6 to 12 percent of food attractant component, 3 to 8 percent of smell attractant component, 2 to 4 percent of absolute ethyl alcohol, 2 to 4 percent of distilled water and the balance of slow-release carrier, wherein the food attractant component is prepared from D-fructose and L-alanine; the olfactory attraction component is prepared from thymol, carvacrol and decalactone or modified decalactone. According to the present invention, the olfaction attraction component composed of thymol, carvacrol and gamma-decalactone or modified decalactone is added to the food attraction component composed of D-fructose and L-alanine, such that the attraction effect on the adult armyworms can be significantly improved, and the important meaning is provided for insect pest monitoring and green prevention and control of armyworms.

The aim is to provide a beer-flavored beverage in which the potato and bean-like odors derived from malt are suppressed, while also providing the dry and smooth characteristics typical of beer-flavored beverages. [Solution] The above problem is solved by providing a beer-flavored beverage that uses malt as a raw material and contains carvacrol and linalool, wherein the ratio of the carvacrol content to the linalool content (carvacrol content / linalool content) is less than 0.40.

The present application relates to the technical field of plant essential oil, and particularly discloses an essential oil composition and application thereof.The essential oil composition comprises the following components: carvacrol, thymol, lemon oil, peppermint oil, bay leaf oil, patchouli oil, geranium oil, perilla oil, cinnamon oil, clove oil and boldo oil.The essential oil composition provided by the present application is natural, environment-friendly, has good sterilization effect, comfortable smell, no obvious skin irritation, harmless to human body, and friendly to the environment, and can be applied to the preparation of antimicrobial products.

The present application provides a carvacrol tertiary amine derivative, a preparation method and an application in preparing a plant source fungicide, the carvacrol tertiary amine derivative contains a cyclic secondary amine substituent, the preparation method of the derivative is that an intermediate II is dissolved in ethanol, then a cyclic secondary amine is added, heating and stirring are carried out, reflux is kept, after TLC detection reaction is completed, ethanol is removed under reduced pressure, then extraction, water washing and purification are carried out, and the carvacrol tertiary amine derivative is prepared. The carvacrol tertiary amine derivative prepared by the present application exhibits obvious bacteriostatic activity on cucumber anthracnose fungus, tomato botrytis blight fungus, wheat scab fungus and wheat take-all fungus. The preliminary bacteriostatic activity of carvacrol tertiary amine derivatives 1, 3, 10 and 14 on wheat take-all fungus is 60.8%-83.2%, which is significantly better than that of positive control hymexazol (48.6%) and reference control carvacrol (45.0%).

The invention provides application of carvacrol in preparation of a feed additive and / or feed for repairing intestinal injury of piglets, and belongs to the technical field of animal feed. The invention discloses application of carvacrol in preparation of a feed additive and / or feed for repairing intestinal injury of piglets. Experiments show that weaning stress causes piglet growth performance reduction and intestinal barrier injury; the feed added with CAR can effectively repair intestinal injuries of piglets, maintain the integrity of intestinal barriers and regulate the intestinal microbial structure, and carvacrol also has the activity of resisting the characteristics of porcine epidemic diarrhea virus and porcine delta coronavirus. The invention provides a reasonable feeding strategy and theoretical support for piglet intestinal injury caused by weaning stress.

The invention provides a fertilizer-pesticide double-effect biological organic preparation special for lily and a use method thereof, and belongs to the technical field of lily planting. The fertilizer and pesticide double-effect biological organic preparation special for lily comprises the following components in parts by mass: 30-50 parts of a soybean meal extract, 20-30 parts of a seaweed extract, 10-20 parts of humic acid, 8-12 parts of sophocarpidine, 5-10 parts of carvacrol and 3-7 parts of a complex microbial inoculant. The biological organic preparation prepared by the invention can obviously improve the emergence rate, the cut flower rate and the first-class flower rate of the lily, reduces the occurrence of leaf and root diseases, realizes the purpose of double effects of fertilizer and pesticide, and has a wide application prospect.

To provide a bee repellent in order to prevent damage to honeybees, which are not the intended target of pesticides applied to crops or pesticides used to control carnivorous bees such as hornets and paper wasps. [Solution] A bee repellent comprising one or more components selected from tetradecane, furfuryl alcohol, cinnamyl alcohol, cinnamaldehyde, 3-methyl-2-butenal, methyl cinnamate, geranyl formate, allyl cyclohexanepropionate, isoquinoline, borneol, carvacrol, δ-dodecalactone, β-ionone, quinoline, butylamine, and citronella oil as active ingredients.

The invention relates to the technical field of feed additives, in particular to water-soluble glycerol monolaurate powder and a preparation method thereof. The water-soluble glycerol monolaurate powder is prepared from an oil phase, an emulsion phase and a wall material phase, wherein the oil phase consists of glycerol monolaurate and carvacrol; the emulsion phase is composed of one or more of protein, Arabic gum or an emulsifier; the wall material phase consists of one or more of maltodextrin, solid corn syrup, maltose, glucose syrup and lactose; the mass ratio of the oil phase to the emulsion phase to the wall material phase is (5-75): (1.75-20): (5-93.25). The water-soluble glycerol monolaurate powder disclosed by the invention has good water dispersibility, can be uniformly and stably dispersed in water, and is convenient for waterline addition.

A composition comprising a solubiliser, at least one preservative, at least one liquid emollient and at least one antimicrobial agent, wherein the composition comprises thymol and carvacrol. The antimicrobial agent may comprise essential oils, active ingredients derived from essential oils or synthetic equivalents thereof and, optionally, additional antimicrobial compounds. The composition may comprise thymol, carvacrol, levulinic acid and lauric acid. The composition may be used for intra-anal douching and may be used to reduce the risk of the transmission of sexually transmitted diseases (STDs) and / or sexually transmitted infections (STIs). The composition may be essentially free of water and may be provided as a single unit dosage formulation. Alternatively, the composition may further comprise water and may be provided as a single unit dosage or multi-dosage formulation. Methods of making the composition that is essentially free of water and the composition further comprising water are also disclosed.

The invention discloses a compound plant essential oil cyclodextrin microcapsule as well as a preparation method and application thereof, belonging to the technical field of bacteriostasis. Beta-cyclodextrin is used as a wall material, composite plant essential oil is used as a core material, a saturated solution coprecipitation method is adopted, and the composite plant essential oil cyclodextrin solid microcapsule is prepared through vacuum filtration, washing with a 50% ethanol solution, vacuum filtration and drying at the temperature of 60 DEG C. The composite plant essential oil is carvacrol and eugenol. Dissolving with absolute ethyl alcohol according to a mass ratio of 4: 3, uniformly mixing, and adding a beta-cyclodextrin saturated solution; the composite plant essential oil cyclodextrin solid microcapsule prepared by the invention has wide antibacterial effect and good slow release performance, reduces the influence of bad pungent smell, and prolongs the action time. The method has the advantages of green and non-toxic materials and simple preparation, and can be used for preservation and fresh keeping of fresh pork.

The invention provides a composition, a preparation method and application. Specifically, the carvacrol and the bacillus subtilis surfactin are combined, so that not only can the bacillus subtilis surfactin be used as an emulsifier of the carvacrol to increase the dispersion degree of the carvacrol in water, but also the carvacrol and the bacillus subtilis surfactin can achieve a synergistic effect to improve the inhibition effect on pathogenic bacteria. In addition, the composition provided by the embodiment of the invention can be gradually degraded under natural conditions, and is free of residues, free of chemical pollution, low in cost, high in biocompatibility and wide in application prospect.

The invention discloses a composition capable of efficiently killing a greedy meimeria disease and application of the composition. The composition is prepared from 0.1 mg / mL to 0.9 mg / mL of astragalus polysaccharide, 0.005 mg / mL to 0.015 mg / mL of carvacrol, 0.05 mg / mL to 0.15 mg / mL of praziquantel and 0.4 mg / mL to 1.5 mg / mL of herba epimedii. The invention finds that after the astragalus polysaccharide, carvacrol, praziquantel and epimedium are combined for use, a remarkable synergistic effect is generated, and the effect of killing the greedy Michamei insect can be remarkably improved within the same time at the dosage which is far lower than the effective concentration of each single component of the astragalus polysaccharide, the carvacrol, the praziquantel and the epimedium. The dosage of four drugs is greatly reduced, the method has the advantages of being efficient, low in cost, capable of reducing drug residues and the like, and a new scheme can be provided for prevention and treatment of the greedy Michameiasis of the large yellow croakers.

The application discloses a carvyl composition for preventing and treating psyllospora, and belongs to the technical field of disease and pest control. The composition comprises the following components in parts by weight: carvyl 1-10 parts, neem essential oil 1-20 parts, alkyl polyglycoside 1-15 parts, cationic surfactant 1-15 parts, and stabilizer 1-15 parts. The carvyl and the neem essential oil in the application are both natural insecticides, and as main insecticidal components, the two are combined together to have a synergistic effect on preventing and treating psyllospora, and achieve excellent insecticidal effect. The specific cationic surfactant and the non-ionic surfactant alkyl polyglycoside are added, and the two have a synergistic effect, are dissolved in water during use, can form a micellar state in water, wrap the carvyl and the neem essential oil therein, make the carvyl and the neem essential oil have a slow-release effect, can improve the killing effect of the overall composition on psyllospora adults, can also wrap and kill the eggs of the psyllospora, and prevent continuous outbreak of the psyllospora.

The invention discloses a bactericide and device for improving wheat stem rot resistance in the field of agricultural biocides, and the bactericide comprises the following components in parts by weight: 10-15 parts of magnolol, 30-50 parts of carvacrol and 1 part of ethapyroxad, and the bactericide comprises the following components in parts by weight: 10-15 parts of magnolol, 30-50 parts of carvacrol and 1 part of ethapyroxad. And the bactericide comprises the following components in parts by weight: 15 parts of magnolol, 40 parts of carvacrol and 1 part of ethapyroxad, or 10 parts of magnolol, 30 parts of carvacrol and 1 part of ethapyroxad. The biological activity of the bactericide and the affinity of succinate dehydrogenase are improved by modifying ethane on amino nitrogen of pydiflumetofen, the inhibition effect and stability are improved by mixing natural plant phenol, meanwhile, environmental pollution is reduced, and the mutation speed of pathogenic bacteria is delayed.

This invention relates to the field of energy-saving and environmental protection technology, specifically to a carvacrol-based hydrophobic eutectic solvent extractant and its preparation method, and its application in the extraction of quinoline from coking wastewater. The structural formula of the carvacrol-based hydrophobic eutectic solvent is shown in formula (I). The method for extracting quinoline from coking wastewater is as follows: the carvacrol-based hydrophobic eutectic solvent is placed in an aqueous solution containing quinoline, and the quinoline is extracted under constant temperature and stirring conditions. The carvacrol-based hydrophobic eutectic solvent prepared by this invention uses natural, inexpensive, simple-to-prepare, and environmentally friendly raw materials, and has a strong ability to remove quinoline from coking wastewater. Simultaneously, this eutectic solvent has good phase-forming ability with water, achieving phase separation with a relatively small dosage. Under the conditions of a volume ratio of carvacrol-based hydrophobic eutectic solvent to quinoline aqueous solution of 1:10, pH value of 7, temperature of 25℃, extraction time of 10 minutes, and concentration of 50 mg / L, the extraction efficiency of quinoline can reach 98.41%. (I)

The application discloses a method for determining the content of carvacol in compound fertilizer, and the method comprises gas phase determination and liquid chromatography, and the gas chromatography method for determining the content of carvacol in compound fertilizer comprises the following steps: S1, sample pretreatment; S2, matrix purification; S3, chromatographic analysis; and S4, quantitative calculation; in the application, a silica gel SPE column is used to replace a traditional diatomite column in the GC method, the polarity impurity adsorption is enhanced through ethyl acetate-hexane gradient activation, sodium chloride salting-out and EDTA complex metal ions are introduced in the HPLC method, the number of miscellaneous peaks in the GC chromatogram is reduced, the separation degree of the carvacol peak is improved, and the service life of the HPLC column is prolonged; the GC method is operated under the conditions of temperature control ultrasonic at 35±2 DEG C and full light avoidance; the HPLC method adopts room temperature methanol-water system extraction, and the recovery rate of the GC method is improved; the HPLC method avoids the 60 DEG C concentration requirement of acetonitrile extraction, and the light stability is improved.

Plant-derived compositions containing an essential oil core and one or more additives are described. The essential oil core comprises two kinds of essential oil. The two kinds of essential oil are eugenol and carvacrol. Drinking water containing plant-derived compositions and methods of providing drinking water containing plant-derived compositions to PW piglets are disclosed.

This invention relates to the field of power cable technology and proposes a flame-retardant power cable and its preparation method. A flame-retardant power cable includes a conductor, an insulation layer, and a sheath layer arranged sequentially from the inside out. The sheath layer comprises the following components in parts by weight: 90-110 parts polyethylene, 6-12 parts compatibilizer, 2-3 parts carbon black, 20-30 parts flame retardant, 1-3 parts lubricant, 0.8-1.2 parts ultraviolet absorber, and 1-1.4 parts antioxidant. The flame retardant includes ammonium polyphosphate and a γ-cyclodextrin inclusion complex; the γ-cyclodextrin inclusion complex contains carvacrol acetate and tea polyphenols. This technical solution solves the problem of insufficient flame retardancy in existing power cables.

The invention belongs to the technical field of preparation of feed additives, and relates to a microcapsule embedding composite essential oil preparation device, a microcapsule embedding composite essential oil preparation method and essential oil, the microcapsule embedding composite essential oil preparation device provided by the invention is characterized in that a premixing stirrer, a vacuum container, an emulsification assembly, a centrifugal pump and a spray drying granulator are connected through a pipeline conveying device; through a conveying pipe and a stirring tank of the pipeline conveying device, conveying, adding and mixing of materials are achieved, and preparation of the composite essential oil is achieved. Meanwhile, the microcapsule embedded compound essential oil for the feed is prepared by compounding cinnamyl aldehyde, eugenol, thymol, carvacrol and tea tree essential oil according to a certain proportion, the problem that single essential oil is single in effect is solved, and the microcapsule embedded compound essential oil has the effects of resisting oxidation, reducing stress and promoting reproductive organ development of laying ducks, so that the laying rate is increased, and the egg quality is improved.

The application discloses a use of carvacrol as a nitrification inhibitor, a use method of carvacrol as the nitrification inhibitor, and a fertilizer manufacturing method and a fertilizer formed by the method. The application finds through indoor simulation, field plot and field tests that the carvacrol has a good inhibiting effect on soil ammonia-oxidizing bacteria when the use amount of the carvacrol is 5.0-15.0 g per mu, can effectively delay the conversion of ammonium nitrogen into nitrate nitrogen, and has an advantage over a traditional nitrification inhibitor in inhibiting a late nitrification stage.

The application relates to the technical field of aquaculture, in particular to a composition, a feed additive, a feeding method and application. Embodiments disclose a composition composed of cinnamyl aldehyde, thymol, carvacrol and lauric acid monoglyceride, which is used for feeding Chinese soft-shelled turtles and grass carp, can effectively promote the growth of the Chinese soft-shelled turtles and the grass carp, improve the daily weight gain of livestock and poultry, improve the feed conversion rate, improve the meat quality and the protein content, improve the immune capacity of the aquaculture animals, and has the characteristics of easy availability of raw materials and low cost.

The invention provides a plant extract feed additive compound and application thereof in enhancing pork flavor substance content, and belongs to the technical field of animal feed. The plant extract feed addition compound is prepared from the following components in parts by weight: 1 to 20 parts of carvacrol extract, 0.1 to 1.5 parts of thymol extract, 1 to 15 parts of cinnamyl aldehyde extract, 1 to 10 parts of linseed oil extract and 1 to 8 parts of rosemary extract. The plant extract feed additive compound provided by the invention is added into a basic feed to feed growing pigs, slaughtering measurement is performed after the growing pigs are fed for 16 weeks, key indexes such as the content of sweet amino acids and the content of bitter amino acids are sequentially measured, and results show that the plant extract feed additive compound provided by the invention can effectively enhance the content of pork flavor amino acids.

The invention provides a chitosan-citric acid-carvacrol microcapsule and a preparation method thereof, and belongs to the technical field of microcapsules. The preparation method comprises the following steps: dropwise adding a carvacrol mixed solution into a chitosan solution, and homogenizing and mixing to obtain a chitosan / carvacrol mixed solution; dropwise adding the chitosan / carvacrol mixed solution into a citric acid solution, and carrying out homogeneous mixing to obtain a reaction solution; after the pH value is adjusted, heating reaction is conducted, a reaction product is subjected to aging, liquid nitrogen freezing and drying in sequence, and the chitosan-citric acid-carvacrol essential oil sustained-release microcapsule is obtained. According to the microcapsule based on CS-CA esterification cross-linking synchronous amide condensation reaction (amidation), efficient loading and controllable release of carvacrol are achieved by optimizing reaction conditions, and the strategy not only provides a new thought for delivery of natural active ingredients, but also can be expanded to practical application of food-grade fresh-keeping films, bioplastics and the like.