10 results about "Citronellol" patented technology

This invention discloses a method for preparing optically active citronellol, comprising the following steps: preparing optically active R-citronellol by asymmetric hydrogenation of neraldehyde and / or geranialdehyde in the presence of a catalyst, wherein the catalyst comprises a transition metal rhodium and a bisphosphine ligand, wherein the mass of isopentenol in the raw material neraldehyde or geranialdehyde is 100-500 ppm of the mass of neraldehyde or geranialdehyde, and the mass of 3,7-dimethyl-2,6-octadienoic acid is 500-1000 ppm of the mass of neraldehyde or geranialdehyde; the preparation method of this invention can significantly improve the catalytic stability of optically active transition metal catalysts used for homogeneous catalysis and asymmetric hydrogenation, yielding R-citronellol with high optical purity, while simplifying the process flow, avoiding the introduction of new impurities, and exhibiting significant economic benefits.

The application discloses a kind of composite sweet compound has sweetening effect additive and its application method, belong to food additive technical field.The additive includes mass ratio 5:0.01:0.00625~24 of sucrose, propylene glycol and composite sweet compound;Wherein, composite sweet compound is selected from at least three kinds in ethyl benzoate, furanone, butyl position decanolactone, propyl position decanolactone, carvacrol, carvone, propyl position nonanolactone, benzyl alcohol, citronellol.The application is by compounding three kinds and more than aroma substance, utilizes multiple aroma synergistic effect taste perception, can realize effective sweetening effect under the premise of significantly reducing sucrose amount, improve the comfort of taste simultaneously.This method not only provides important reference for the sweetening effect of different aroma, has scientific research guiding value, also provides a kind of new strategy for food industry by aroma control, realizes sugar reduction gain, can respond to health needs while maintaining flavor and taste, with wide application prospect.

A deodorant aerosol composition comprising an activated aluminium sesquichlorohydrate, a C10-C14 branched-chain hydrocarbon and a fragrance comprising one or more components selected from dihydromyrcenol, linalool, benzyl acetate, citronellol, linalyl acetate, alpha-methyl ionone and gamma undecalactone.

This invention provides a method for synthesizing nepetalactone, comprising the following steps: using citronellol as a raw material, an oxidant is added under organic solvent, auxiliary agent, catalyst, steric hindrance agent, and alkaline conditions to carry out an oxidation reaction to obtain product A; using product A as a raw material, using tetraacetonitrile copper(I) salt and ABNO as catalysts, and 4,4'-dimethoxy-2,2'-bipyridine as a ligand, an oxidation reaction is carried out under organic solvent, air, or oxygen conditions to obtain product B; product B undergoes a nucleophilic condensation reaction with N-methylaniline to obtain product C; product C undergoes a hydrolysis protection reaction to obtain product D; using product D as a raw material, an oxidation reaction is carried out under oxidant and organic solvent conditions to obtain nepetalactone. The synthesis method provided by this invention improves the yield of nepetalactone, makes the synthesis method more stable, and enables large-scale synthesis of nepetalactone; simultaneously, the oxidation reaction is carried out in air or oxygen, without the use of an oxidant, saving the cost of oxidants.

The application discloses an antibacterial rubber material and a preparation method thereof and an antibacterial rubber yoga mat, and relates to the rubber processing technical field. In the preparation of the antibacterial rubber material, modified citronellol is grafted on ethylene-vinyl acetate copolymer to obtain antibacterial modified ethylene-vinyl acetate copolymer; antibacterial borate is grafted on the surface of calcium carbonate to obtain modified calcium carbonate; maleic anhydride is grafted on ethylene-vinyl acetate copolymer to obtain maleic anhydride modified ethylene-vinyl acetate copolymer; the antibacterial modified ethylene-vinyl acetate copolymer, butadiene styrene rubber, cis-butadiene rubber, ethylene-octene copolymer, maleic anhydride modified ethylene-vinyl acetate copolymer, modified calcium carbonate, dicumyl peroxide, azodicarbonamide stearic acid, zinc oxide and zinc stearate are mixed and milled, and then are molded and foamed to obtain the antibacterial rubber material. The antibacterial rubber material prepared by the application has excellent antibacterial, antiskid and rebound properties.

The present invention provides a method for utilizing pure essential oils from citronella to formulate mosquito repellent spray. Citronella contains citronellal, citronellol, and geraniol, that provide its aroma and mosquito-repellent ability. The method involved washing the citronella grass to remove impurities. Air dying extracting the raw materials at room temperature to remove moisture. The leaves are then subjected to leaching processes in which they are soaked in 500 mL of hexane overnight to ensure efficient and pure essential oil extraction. Recover the hexane through distillation using a Soxhlet apparatus, leaving behind the pure essential oil to achieve a natural, eco-friendly, cost-effective and sustainable mosquito-repellent spray.

This invention relates to the field of tobacco processing technology, specifically to citronellol liposomes, their preparation methods, and applications. This invention provides a technical solution for preparing citronellol liposomes based on a solvent injection method, encapsulating citronellol as a core material within a phospholipid bilayer. This achieves liposome formation under mild conditions of 55-65℃, reducing the preparation time to within 30 minutes, and achieving a citronellol retention rate >95%. Simultaneously, optimizing the phospholipid-cholesterol ratio enhances the membrane material's capacity to encapsulate hydrophobic citronellol, resulting in a stable encapsulation rate ≥85%, significantly higher than the 60-70% of cyclodextrin encapsulation technology. This minimizes the waste of active ingredients. The prepared nanoliposomes can be added to tobacco, filters, heated cigarette flavorings, or e-cigarette e-liquids to achieve sustained release and protection of citronellol, prolonging aroma duration and enhancing the flavor of the tobacco.

This invention relates to an odor combination for improving non-motor symptoms of Parkinson's disease. Its active ingredients consist of phenylethanol, eucalyptol, citronellol, and eugenol in a mass ratio of 0.5-2:0.5-2:0.5-2:0.5-2, with menthol microcapsules as the functional adjuvant. Each active ingredient is mixed with the menthol microcapsules in a mass ratio of 2-4:1, and the active ingredients are layered on a hydrogel material. The odor combination can be used alone or in conjunction with a breathing guide to form a multi-layered controlled-release olfactory training component. The odor combination and olfactory training component can generate a more progressive and hierarchical odor stimulation pattern that conforms to the laws of neural information processing, inducing stronger neural plasticity; it can also improve the experience and enjoyment of the training process, thereby increasing the long-term training compliance of Parkinson's disease patients; and the added adjuvant, without interfering with the main olfactory training, helps to regulate the patient's emotions and attention, thus producing a synergistic therapeutic effect.

A natural composition that includes p-menthane-3,8-diol, citronellol, and geraniol.

The application discloses a citronellol-based antibacterial polymer and a preparation method and application thereof. First, a citronellol-based initiator is synthesized through esterification reaction of citronellol and an acyl halide, and then DMAEMA and HEMA are polymerized through ATRP to obtain the citronellol-based antibacterial polymer; and then the citronellol-based antibacterial polymer is connected to cotton through a covalent bond by using diisocyanate to obtain a washing-resistant antibacterial cotton fabric, which has greater application value in the field of medical cotton fabrics. The citronellol-based antibacterial polymer prepared by modifying citronellol and combining with the polymer has obviously enhanced antibacterial effect and is firmly grafted to the cotton, and is expected to be used in industrial production.