138 results about "Linalool" patented technology

The invention discloses a composition for enhancing Chinese chestnut fragrance of a tea beverage as well as a preparation method and application of the composition, and belongs to the technical field of food additives. The composition is prepared from the following raw materials in parts by weight: 0.1 to 0.9 part of furanone, 0.01 to 0.2 part of linalool, 0.001 to 0.5 part of 2, 5-dimethylpyrazine, 0.02 to 0.1 part of geraniol, 0.03 to 0.05 part of beta-ionone and 0.01 to 0.25 part of geranyl acetone. According to the invention, through a unique ratio design, the scorched nut smell of pyrazine compounds, the rich caramel sweet taste of furanone, the stir-fried smoke and fire smell of 2-acetylthiazole and the freshness of geraniol and other terpene alcohols are ingeniously fused, and the complex level of Chinese chestnut fragrance is accurately reproduced. According to the present invention, the edible-grade propylene glycol is adopted as the solvent, such that the solubility, the dispersibility and the stability of the aroma composition in the tea beverage can be effectively improved, the persistence and the uniformity of the aroma release can be significantly improved, the shelf life of the tea beverage product can be easily prolonged, and the market competitiveness of the product can be enhanced.

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 relates to a compound fragrance essential oil, belonging to the field of fragrance technology, and solves the technical problems of existing fragrance essential oils, such as single aroma layers, poor fragrance retention, and easy component separation. This fragrance essential oil, by weight percentage, consists of 0.05wt%~0.10wt% polyethylene glycol, 9.00wt%~10.00wt% linalool, 0.50wt%~1.00wt% violet essential oil, and the balance being glyceryl acetate. The components are scientifically proportioned and compounded to produce a synergistic effect. Polyethylene glycol emulsifies and solubilizes, ensuring uniform mixing without separation. The sweet camphor floral scent of linalool blends harmoniously with the rich floral scent of violet essential oil. Glyceryl acetate acts as a carrier to enhance the fragrance retention stability of the essential oil. The final fragrance essential oil has a fresh, natural, rich, and long-lasting aroma. The formulation of this invention has been verified by professional testing institutions, confirming the authenticity and effectiveness of the components, the reasonable proportioning design, and the readily available raw materials. It can be directly compounded and used, applicable to multiple fields such as daily chemicals, food, and aromatherapy, with broad application prospects.

The invention discloses a method for detecting sweet-scented osmanthus aroma components in sweet-scented osmanthus wine, which comprises the following steps: diluting a wine sample, adding salt until the wine sample is saturated, and then carrying out liquid-liquid micro-extraction by using a mixed solvent of absolute ether and ethyl acetate in a specific ratio, the volume fraction of the ethyl acetate being 3-5%; after oscillation, ultrasonic-assisted extraction and centrifugal separation, an organic phase is taken for dehydration, a gas chromatograph-mass spectrometer is used for analysis, and an internal standard method is adopted for quantification. By optimizing the polarity of the solvent, various aroma components (such as leaf alcohol, linalool oxide, linalool, ionone, tea aroma spirane and the like) from strong polarity to weak polarity can be effectively covered, and balanced and efficient extraction under a single extraction step is realized. The method is easy and convenient to operate, high in recovery rate, good in reproducibility and suitable for quality evaluation and production process control of the osmanthus fragrans wine.

The invention discloses a synthesis method of teprenone, which comprises the following steps: dissolving farnesyl acetone in a solvent, and reacting with a Grignard reagent at low temperature to obtain geranyl linalool; the method comprises the following steps: mixing geranyl linalool, alkyl acetoacetate and an organic aluminum catalyst, reacting under a heating condition, adding a dilute acid solution and an organic extraction solvent into the reacted mixed solution, extracting, separating an organic phase to obtain a teprenone crude product, and carrying out reduced pressure distillation purification to obtain teprenone, the yield and the purity of the teprenone in industrial production are improved.

The invention discloses a preparation method of a ZIF-67 / PDMS mixed matrix pervaporation membrane, which comprises the following steps: dissolving 2-methylimidazole and docusate sodium in methanol to obtain a 2-methylimidazole solution; the preparation method comprises the following steps: uniformly mixing a methanol solution of cobalt nitrate hexahydrate and a 2-methylimidazole solution, standing to obtain a ZIF-67 precursor suspension, carrying out solid-liquid separation to obtain ZIF-67 crystals, uniformly dispersing the ZIF-67 crystals in ethanol, adding polydimethylsiloxane into the ZIF-67 crystals, uniformly dispersing the ZIF-67 crystals to obtain a suspension, adding a cross-linking agent and a catalyst into the suspension, uniformly stirring to obtain a ZIF-67 / PDMS coating solution, and carrying out vacuum drying on the ZIF-67 / PDMS coating solution. And uniformly coating the surface of a PVDF substrate membrane with the obtained product, crosslinking at normal temperature, and drying to obtain the product. Compared with a pure PDMS pervaporation membrane, the ZIF-67 / PDMS mixed matrix membrane has the advantages that the separation factor of the ZIF-67 / PDMS mixed matrix membrane on a linalool and water mixed system is obviously improved, and the membrane flux is up to 600-700 mgm <-2 > h <-1 >. The method is applied to a pervaporation technology to separate aromatic substances in food, and after a to-be-intercepted side solution is subjected to series processing to form a product, a permeation side solution rich in the aromatic substances is backfilled into the product, so that the aroma of the product is repaired.

This invention discloses a lemongrass fermentation broth, its preparation method, and its application. The lemongrass fermentation broth simultaneously meets the following conditions: it contains live Lactiplantibacillus microorganisms, and the total number of live bacteria is ≥1×10⁻⁶. 9 The fermented lemongrass broth contains cfu / mL and contains volatile active ingredients, including at least linalool and methyl heptenone. Compared with unfermented lemongrass raw materials, the content of methyl heptenone in the lemongrass fermentation broth has increased from undetectable to over 10%, and the relative content of linalool has increased to over 20%. This invention's lemongrass fermentation broth possesses both a high viable bacterial count and a specific spectrum of volatile active ingredients. Through microbial fermentation, it achieves the targeted transformation of volatile components in lemongrass raw materials, particularly significantly increasing the content of linalool, methyl heptenone, and various ester aroma components, thus possessing broad prospects for industrial application.

The present invention addresses the problem of providing an alcohol-containing composition in which the irritation of alcohol is reduced. In a composition containing alcohol, linalool and / or geraniol is blended, and cis-3-hexene-1-ol is blended.

This invention discloses a butterfly adult directional attractant based on volatile chemical substances, along with its preparation and application methods. The invention uses a combination of readily available chemical reagents, such as linalool, as volatile signaling substances to efficiently induce various butterfly adults, including the Common Mormon and the Citrus Swallowtail, which use citrus plants (Rutaceae family) as hosts, to complete forward directional movements through flight or walking. This method can induce the synchronized directional movements of multiple butterflies of various species at a relatively low cost, and has significant practical value for human-butterfly interaction projects in ecological landscape construction and recreational experience settings.

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 objective is to provide a fragrance composition that has high reproducibility of the fragrance of forsythia flowers and excellent palatability. [Solution] The forsythia flower fragrance composition comprises (A) methyl salicylate and / or ethyl salicylate, (B) methyl benzoate and / or ethyl benzoate, and (C) linalool and / or limonene, wherein the total content of component (A) and component (B) is 50 to 90% by mass, and the mass ratio (A / B) is 1 to 10.

This invention discloses a microwave-induced fruit-aroma-enhanced fermented chili powder and its preparation method, belonging to the field of fermented condiment technology. The preparation of the fruit-aroma-enhanced fermented chili powder of this invention includes: washing and mincing fresh millet chilies, adding chopped onions, edible salt, sugar, and white wine, mixing well, and fermenting for 10-20 days; then spreading the fermented chili sauce evenly and placing it in a microwave drying device, setting the microwave output power to 1-6 kW, and microwave drying at 90-110℃ for 20-40 minutes; the dried product is then pulverized using a grinder and sieved to obtain the final product. Compared with existing technologies, this method significantly increases the content of key fruit aroma substances such as ethyl linoleate and linalool in the obtained product, exhibiting a prominent and lasting fruit aroma flavor; while achieving product pulverization, it significantly enhances the fruit aroma characteristics of the product, providing an effective solution for developing high-quality, flavor-harmonious fermented chili products.

This invention provides a novel technology that allows for a more pronounced citrus fruit flavor in citrus fruit juice-flavored alcoholic beverages containing distilled spirits, where the total concentration of monosaccharides and disaccharides (excluding sugar alcohols) is less than 0.5 g / 100 mL based on the volume of the beverage. [Solution] A citrus fruit juice flavored alcoholic beverage containing distilled spirits as a raw material, wherein the total concentration of monosaccharides and disaccharides excluding sugar alcohols is less than 0.5 g / 100 mL based on the volume of the beverage, and the citrus fruit juice flavored alcoholic beverage contains linalool, nonanal, and neryl acetate.

The application belongs to the field of food fresh-keeping packaging materials, and particularly relates to a preparation method of a bacteriostatic one-way moisture-conducting fresh-keeping pad for livestock and poultry fresh meat, which comprises the following steps: preparing a water-locking layer of sodium alginate / gelatin fibers by wet spinning, preparing a water-absorbing layer of polyvinyl alcohol / chitosan fibers on the upper surface of the water-locking layer by electrospinning, and preparing a hydrophobic layer of linalool-containing poly-caprolactone fibers on the upper surface of the water-absorbing layer by electrospinning. The prepared bacteriostatic one-way moisture-conducting fresh-keeping pad has excellent one-way moisture conductivity, and can quickly and directionally transport fresh blood water from the top of the fresh-keeping pad to the bottom of the pad; the fresh-keeping pad has a water-absorbing layer and a water-locking layer, which can avoid liquid accumulation at the bottom of the fresh meat, and the top layer releases the bacteriostatic agent linalool to prolong the shelf life of the meat; and the electrospun materials used are non-toxic and safe and easy to degrade.

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 invention discloses a pungent litse fruit essence for beverage and a preparation method thereof, and belongs to the technical field of beverage additives, the pungent litse fruit essence is prepared from the following raw materials in parts by mass: 0.1 part of citronellal, 0.1 part of linalool, 0.05 part of geraniol, 0.1 part of citral, 3 parts of lemon terpenoid removal liquid, 10 parts of pungent litse fruit water-soluble extract, 5 parts of pungent litse fruit fermentation extract, 61.65 parts of ethanol, 10 parts of purified water and 10 parts of propylene glycol. The citronellal, the linalool, the geraniol and the citral are used for providing head fragrance, the lemon terpene-removing liquid is used for providing soft fragrance, the pungent litse fruit water-soluble extract is used for providing main fragrance, the pungent litse fruit fermentation extract is used for providing composite fragrance, so that the fragrance of the pungent litse fruit essence is compounded and rich, and meanwhile, the pungent litse fruit extract is obtained by an ethanol water extraction method, has good water solubility, and can be used for preparing the pungent litse fruit essence. The beverage can be applied to beverages and has unique flavor.

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 utility model belongs to the field of plant essential oil extraction technology, concretely is a kind of plant essential oil extraction equipment, including support;The middle part of support is rigidly connected with glass distiller;Sealing cover is installed in the top of glass distiller by flange;The top of support is rigidly connected with ultrasonic atomizer;The output end of ultrasonic atomizer is rigidly connected with water pipe;The water pipe is wear -resistant hose;Water pipe penetrates sealing cover side wall and is rigidly connected with annular tube;Water pipe and sealing cover are mutually rigidly connected;Annular tube and sealing cover are rigidly connected with multiple fixed rods;Multiple atomizing nozzles are rigidly connected in the middle part of annular tube;The inside of glass distiller is installed with placing structure;The placing structure is used to place raw material, by adopting the method that rose petal is atomized wet before distillation, can improve rose petal essential oil extraction, internal linalool, citronellol and other key aroma components retention rate, increase the quality after essential oil extraction.

The present invention addresses the problem of providing a low-alcohol beer-like beverage having a long duration of good flavor. [Solution] A low-alcohol beer-like beverage containing a wort fermentation broth, containing a highly hydrophobic aroma component having a LogP of 3.0-4.3 at a concentration of 150-400 ppb, and having an alcohol concentration of 4 v / v% or less, the highly hydrophobic aroma component containing a terpene-based compound and an ester-based compound, the terpene compound comprises at least one selected from linalool and myrcene, the ester compound comprises ethyl caprylate, and the ratio of the terpene compound to the ester compound is 0.04-0.2.

The invention relates to a tobacco flavor with glutinous rice fragrance and tea fragrance flavor and application of the tobacco flavor. The tobacco flavor is prepared from the following components: glutinous rice fragrance tea leaf essential oil, 2-carene, 2-propionyl-3, 4, 5, 6-tetrahydropyridine, 2-acetyl-3, 4, 5, 6-tetrahydropyridine, geraniol, 2-propionyl-1, 4, 5, 6-tetrahydropyridine, piperidine-2-ethyl formate and linalool. The sticky rice fragrance tea leaf essential oil and seven specific spice components are creatively combined to form the mixed spice, compared with single sticky rice fragrance tea leaf essential oil serving as spice, all the components in the mixed spice are matched and synergistic, sticky rice fragrance and tea fragrance are provided when cigarettes are smoked, the fragrance coordination of the cigarettes is obviously improved, and the flavor of the cigarettes is improved. The smoke characteristic of the cigarette is improved; after the spice is used for slow release treatment, the stability of glutinous rice fragrance and tea fragrance flavor can be maintained when cigarettes are smoked, and the flavor of the spice cannot be changed due to the change of the original proportion of the components in the slow release process, so that the sensory quality of tobacco products is comprehensively improved.

The invention discloses a tobacco leaf fermentation and quality improvement method based on oxygen content regulation and application thereof, and the method comprises the following steps: preparing a tobacco culture medium, crushing tobacco leaves, sieving to obtain tobacco powder, mixing the tobacco powder with water in proportion, extracting, filtering and sterilizing to obtain the tobacco leaf fermentation and quality improvement method; respectively culturing Klebsiella HNYJ-1 single colonies and enterobacter HNYJ-4 single colonies to obtain seed solutions, and mixing the seed solutions in proportion to obtain a composite seed solution; and finally, after the tobacco leaves are moistened in a redrying stage and before redrying, spraying the composite seed solution, firstly carrying out aerobic fermentation in a closed temporary storage cabinet for 12 hours, then adjusting the oxygen to 5-20%, carrying out low-oxygen fermentation for 24 hours, and after fermentation, redrying at high temperature to inactivate the strain. Compared with unfermented and single aerobic / hypoxic fermentation, the method has the advantages that the content of linalool, 2, 3, 5, 6-tetramethylpyrazine and other key aroma components can be greatly increased, the aroma quality, the aroma amount and the fineness of the tobacco leaves are remarkably improved, offensive odor and irritation are reduced, the process is adaptive to an existing processing flow, and extra complex equipment is not needed.

The application relates to the technical field of analytical detection, in particular to an electrochemical gas sensor for detecting linalool and a preparation method thereof. The preparation method is to prepare the electrochemical gas sensor after modifying a molecular imprinting film-zeolite imidazolate framework-8-multi-walled carbon nanotube-zinc oxide (MIP-ZIF-8-MWCNT-ZnO) composite material on the surface of an electrode. The electrochemical gas sensor can sensitively and accurately detect the content of linalool gas released by plants, realizes stable and accurate detection of linalool with high specificity and high sensitivity in a complex environment, and has a wide application prospect.

The invention discloses a mosquito repelling composition and application thereof. The mosquito repelling composition provided by the invention is prepared from the following components: caryophyllene oxide, eudesmol, linalool, alpha-terpilenol and delta-juniper according to a weight ratio of (1 to 10): (1 to 12): (1 to 10): (1 to 10): (1 to 10). After the caryophyllene oxide, the eudesmol, the linalool, the alpha-terpilenol and the delta-juniper are compounded, the components have a synergistic effect and have remarkable mosquito-repelling activity, the effect is superior to that of independent use or pairwise superposition use of the components, and the mosquito-repelling effect is further improved while the concentration and the dosage of the components are reduced. The composition provided by the invention is remarkable in mosquito repelling effect, safe in component source, sufficient in raw materials, low in toxic and side effects, green, healthy, simple to prepare and easy to industrialize, and a method means is provided for preparing more efficient, green and safe plant source mosquito repelling products.

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.

The Machilus rubescens TPS synthetase gene MnTPS12 provided by the invention is a key gene for synthesis of gamma-Eudesmol and Linalool in plant genetic engineering, a novel terpene synthetase gene MnTPS12 is obtained by cloning in Machilus rubescens for the first time, and the gene can catalyze FPP and GPP to generate gamma-Eudesmol and Linalool, and plays an important role in improving the content and resistance of plant terpene components. The terpene synthase gene MnTPS12 researched by the invention can be used for preparing gamma-Eudesmol and Linalool, and can be further used for preparing essential oil, essence and medicines containing the components of the gamma-Eudesmol and the Linalool. The gene segment of the terpene synthase gene MnTPS12 is constructed on a plant expression vector, other plant materials can be transformed through an external source, so that a transgenic material containing the terpene aroma gene is obtained, and an effective method is provided for cultivating aroma and medicinal plants.

The invention relates to chilli sauce flavor essence as well as a preparation method and application thereof. The essence is prepared from the following raw material components: acetic acid, dimethyl disulfide, ethyl lactate, diallyl disulfide, diallyl trisulfide, allyl methyl disulfide, dimethyl trisulfide, 2-methylbutyric acid, alpha-terpilenol, phenethyl alcohol, phenylpropanol, ethyl caprate, fenugreek lactone, 2-methyl-2-pentenoic acid, linalool, hexanal, eugenol and ethyl caprylate. The chilli sauce is prepared from ethyl maltol, methyl cyclopentenolone, capsicum oleoresin, a chilli sauce Maillard reactant and caprylic capric triglyceride. The chilli sauce flavor essence prepared by the invention not only has the flavor characteristic of chilli sauce, but also has the taste of chilli sauce, and is full and pure in fragrance, high in simulation degree and stable in quality.

The invention provides a screening method of a camellia sinensis variety suitable for processing. Comprising the following steps: S1, processing fresh leaves of a tea tree variety to be screened into a ground tea sample; s2, measuring the content of theanine, caffeine, catechin, linalool, geraniol and ligustral in the camellia sinensis sample. The screening method for the camellia sinensis varieties suitable for processing systematically solves the problems that in camellia sinensis variety screening, a traditional method is single, and key quality components cannot be analyzed clearly through combination of multiple omics technologies.

The invention discloses a pesticide composition containing plant essential oil. A pesticide and the plant essential oil are used as effective components; the content of the insecticide in the pesticide composition is 0.5-1 wt%, and the content of the plant essential oil in the pesticide composition is 0.5-2 wt%; the plant essential oil is cinnamomum camphora essential oil, citronella essential oil, basil essential oil and / or eucalyptus oil. The pesticide composition can effectively prevent and control agricultural and / or non-agricultural insect pests, and after the pesticide and the plant essential oil are compounded and combined, the pesticide utilization rate and the pesticide control effect can be effectively improved, the pesticide dosage is reduced, the more excellent insect pest control effect is achieved while environmental pollution is relieved, and the pesticide composition is worthy of popularization and application. And the pesticide has the advantages of low toxicity, environment friendliness, safety to crops and the like.

The invention provides a method for detecting geranyl pyrophosphoric acid in water by headspace solid-phase microextraction / gas chromatography-mass spectrometry, which utilizes the characteristic that geranyl pyrophosphoric acid is easy to decompose into linalool under an acidic condition, adsorbs linalool by headspace solid-phase microextraction, and indirectly quantifies geranyl pyrophosphoric acid in combination with a gas chromatography-mass spectrometry technology. The method is easy to operate, low in instrument cost, high in sensitivity and suitable for detecting geranyl pyrophosphoric acid in water bodies such as source water, the generation risk of 2-methylisoborneol can be pre-judged through the content of geranyl pyrophosphoric acid, and technical support is provided for water supply safety.

The invention relates to acetylated soluble soybean polysaccharide-linalool nanoparticles as well as a preparation method and application thereof, and the acetylated soluble soybean polysaccharide-linalool nanoparticles take acetylated soluble soybean polysaccharide as a carrier to load linalool. The acetylated soluble soybean polysaccharide is used as a carrier of linalool, so that the binding stability is good; the efficient loading and stable wrapping of the linalool are realized; the core-shell structure formed by acetylated soluble soybean polysaccharide can block oxygen and illumination, inhibit the oxidative volatilization of linalool, delay the release rate, realize long-acting slow release of linalool, and meet the long-term action demand.