16 results about "Eugenol" patented technology

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 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.

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 present disclosure relates to compositions and related apparatuses that provide effective microbial inhibiting headspace concentrations of allyl isothiocyanate, citral, thymol, linalool, terpineol, eugenol, or a combination of any two or more thereof.

This invention relates to the encapsulation and delivery of active ingredients in traditional Chinese medicine and the preparation of Pickering emulsion. It discloses a method for preparing a Pickering emulsion that effectively improves the bioavailability of eugenol, comprising the following steps: dissolving chitosan in a 1% aqueous acetic acid solution under magnetic stirring to prepare a chitosan CS solution; dissolving sodium alginate in deionized water to prepare a sodium alginate SA solution; slowly adding 4M NaOH solution to adjust the pH of the chitosan solution to 6.8, and then slowly adding sodium alginate solution to obtain a CS-SA mixed solution. All of the above processes are carried out under magnetic stirring; mixing the CS-SA mixed solution with clove essential oil in a certain proportion, stirring to obtain a crude emulsion, and then homogenizing it ultrasonically for a certain time to obtain a Pickering emulsion stabilized by chitosan and sodium alginate particles, with clove essential oil as the oil phase. Compared with the prior art, the main advantage of this invention is that it effectively improves the bioavailability of eugenol, the active ingredient in clove essential oil.

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

This invention belongs to the field of plant protection, specifically relating to the application of eugenol in the control of wheat aphid. The research of this invention demonstrates the repellent, contact-killing, and fumigation effects of eugenol on the agricultural pest wheat aphid. The effects of eugenol on the growth and development of the agricultural pest wheat aphid were assessed using sex life table software, evaluating key parameters of wheat aphid growth and development and population changes at sublethal concentrations. The results showed that eugenol treatment can adversely affect the growth and development of wheat aphids, such as reducing survival and reproductive rates, and decreasing population size. Furthermore, eugenol has a certain synergistic effect with commonly used insecticides. Therefore, this invention has application value in the control of wheat aphids.

The utility model provides a kind of environmental protection supervises moxa device, it is related to the technical field of moxa, including bed body, eugenol mechanism;Bed body is equipped with air hole one;Eugenol mechanism includes box, pull-out box one, pull-out box two and multiple fixed components, wherein, box top and one side are set to open mouth, box is fixedly installed in the bottom of bed body;Slidingly installed in box, its top is set to open mouth, bottom is equipped with air hole two, inside is paved with gauze, gauze is used to pave ginger powder;Slidingly installed in box, below pull-out box two, its top is set to open mouth;Multiple fixed components slidingly installed in pull-out box two, for fixed eucalyptus stick;The utility model pull-out box one and pull-out box two slidingly installed in box, by pulling mode, it is convenient to operate;Fixed component slidingly installed in pull-out box two by being set, corresponding jack on fixed component is used for inserting eucalyptus stick, by moving the position of fixed component, eucalyptus stick position can be adjusted, and heat distribution is optimized.

This invention relates to the field of polymer composite materials technology, specifically to an environmentally friendly biodegradable antibacterial film and its preparation method, comprising the following raw materials in parts by weight: 40-60 parts polylactic acid, 20-40 parts polyadipic acid, 5-15 parts additive A, 3-10 parts additive B, 2-8 parts polyethylene glycol, and 1-5 parts polyethylene wax. In this invention, additive A is a composite of loofah charcoal loaded with tea polyphenols and quaternary ammonium salt-modified chitosan, combined with eugenol to construct a synergistic antibacterial system. The porous structure of the loofah charcoal adsorbs pathogens and directionally releases tea polyphenols and eugenol, thus enhancing the antibacterial efficacy of the film through a dual effect. Additive B is a composite powder prepared by modifying cassava starch with active ingredients from Sichuan pepper seeds extracted by supercritical CO2. The composite powder improves the toughness and thermal stability of the film and enhances the processing fluidity of polyadipic acid. The two work synergistically to endow the film with excellent film-forming properties, mechanical strength, and durable antibacterial properties.

This invention provides a cinnamaldehyde-modified thymol molecular gyroscope, its preparation method, and its applications, belonging to the field of micro-area viscosity detection technology. The cinnamaldehyde-modified thymol molecular gyroscope of this invention uses the natural product α-hexylcinnamaldehyde and thymol oil as raw materials, and constructs a molecular structure through a specific reaction. It can serve as a molecular-level tool for controlling the viscosity of aromatic essential oils, effectively avoiding the shear-thinning effect that easily occurs when high molecular weight components in aromatic essential oils are used in viscosity detection, significantly reducing testing errors. This molecular gyroscope is highly sensitive to changes in the viscosity of thymol aromatic essential oils, providing non-destructive, real-time visual monitoring support for the essential oil preparation process, and is of great significance for the precise optimization and quality control of essential oil production processes.

This invention belongs to the field of fertilizer technology, specifically relating to a foliar fertilizer for promoting the growth and increasing the yield of Coptis chinensis, its application method, and its application. The foliar fertilizer is obtained by mixing chitosan, phycocyanin, and eugenol in water and stirring until homogeneous. The ratio of chitosan, phycocyanin, eugenol, and water is 30 mL: 25 g: 0.375 g: 80 L. Spraying the upper and lower leaves of Coptis chinensis once a month during May-July, October, and November significantly promotes its growth, increases its yield, and enhances its stress resistance. It has advantages such as low cost, simple manufacturing process, convenient application, and fewer application times, showing broad application prospects for improving the growth, yield, and stress resistance of Coptis chinensis.

The present application belongs to the technical field of soil microorganism regulation, and particularly relates to a regulator for promoting the symbiosis of alfalfa and rhizobium and a preparation method thereof. The regulator comprises the following raw materials in parts by weight: eugenol 0.58-1.16 parts, lactobacillus peptide 0.1-0.4 parts, emulsification aid 0.03-0.05 parts, and slow-release agent 0.07 parts. The slow-release agent is used to solve the problems of easy degradation of the antibacterial peptide lactobacillus peptide and easy volatilization of eugenol through a slow-release and emulsification process. The regulator can not only ensure the safe germination of alfalfa seeds, but also selectively inhibit the competing bacteria in the soil, significantly improve the niche competition advantage and symbiotic nitrogen fixation efficiency of the exogenous rhizobium, and has the advantages of high efficiency, environmental protection and long field persistence.

The application relates to the technical field of preservatives, and particularly provides a food natural preservative composition and application thereof. The food natural preservative composition of the application is composed of kojic acid, cinnamaldehyde and eugenol in a weight ratio of 1:(0.1-5):(0.1-5), or epsilon-polylysine can also be added. The food natural preservative composition of the application synergistically plays the preservative performance of each natural preservative component, and has better preservative performance.

The application provides a detoxification and repair medical dressing for treating and relieving stubborn vulvar leukoplakia and a preparation method thereof, and relates to the technical field of gel dressings. The medical dressing is composed of a gel component and a composite antibacterial repair component, and the composite antibacterial repair component is composed of modified corn starch, anise camphene, eugenol, algal polysaccharide and Gynura japonica fermented inactivated extract. The Gynura japonica fermented inactivated extract is obtained by fermenting Gynura japonica with Bacillus subtilis and lactic acid bacteria and then inactivating. The application overcomes the shortcomings of the prior art, can effectively relieve itching during the treatment of vulvar leukoplakia under the premise of having an antibacterial effect, shortens the overall treatment cycle, and improves the comfort of treatment.

The application relates to the technical field of fine chemical additives, in particular to an antibacterial organic silicon leveling agent and a preparation method and application thereof. The antibacterial organic silicon leveling agent comprises a comb structure polysiloxane and is prepared by chemically bonding specific proportions of alkyne diol blocks and eugenol antibacterial functional groups on a main chain. A step-by-step silicon hydrogen addition process is adopted in the preparation method, so that the antibacterial groups preferentially occupy the molecular chain ends, and the wetting and defoaming groups are distributed in the middle part. The application can reduce the dynamic surface tension by using the alkyne diol structure and inhibit bubbles, and simultaneously provide broad-spectrum and long-acting antibacterial performance through the chemically bonded eugenol. The leveling agent has stable solubility in a water-based or UV system, solves the problems of easy loss of the antibacterial agent and invalidation of the additive compounding, and significantly improves the comprehensive protection performance and leveling effect of a coating.

The present invention is in the field of biocatalysis, bio-conversion and fermentation and is directed to a cascadic method for the enzymatic production of vanillin from eugenol.