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76 results about "Vanillyl alcohol" patented technology

Vanillyl alcohol is derived from vanillin. It is used to flavor food.

Flavor enhancer, food or beverage containing the flavor enhancer, and method of flavor enhancement

InactiveUS20060159818A1Deterioration of flavorDeterioration of tasteFood preparationFood flavorVanillyl alcohol
A flavor enhancer which comprises a vanillyl alcohol derivative represented by the general formula (1): (wherein R represents an alkyl group having 1 to 6 carbon atoms) and / or a formed product of the vanillyl alcohol derivative; a method of flavor enhancement for foods or beverages which comprises using the flavor enhancer; and a food or beverage containing the flavor enhancer.
Owner:TAKASAGO INTERNATIONAL CORPORATION

Melt formula

A topical composition comprises a vehicle, said vehicle including an emulsion or dispersion of water in an amount of from 50% by weight to 93% by weight; and a non-aqueous discontinuous phase in an amount of from 50% by weight to 7% by weight; at least one of a bronzer, a tanning accelerator, or a mixture thereof; and from 0.01% by weight to 5% by weight of a warming agent, based on the total weight of the composition. The warming agent comprises at least one alkyl ether of vanillyl alcohol at least one N-alkyl amide of vanillic acid; and is present in an amount effective to produce a prolonged warming sensation when applied to a user's skin. The composition is transparent to UV radiation. The composition is used for indoor tanning.
Owner:NEW SUNSHINE

Preparation of nano-palladium catalyst as well as application of nano-palladium catalyst to synthesis of vanillin compounds

The invention discloses preparation of a nano-palladium catalyst as well as an application of the nano-palladium catalyst to synthesis of vanillin compounds and relates to the technical field of organic synthesis. The active ingredient of the nano-palladium catalyst is zero-valence-state single-substance palladium nanoparticles which are obtained by loading high-valence-state palladium salt on a carrier and then reducing the palladium salt to the active ingredient; then vanillyl alcohol compounds are oxidized into the vanillin compounds by the aid of air under actions of the nano-palladium catalyst and an alkali under normal temperature and normal pressure conditions. The prepared nano-palladium catalyst has the characteristics of good selectivity and high yield, is easy to separate after participating in reactions, recyclable and environment-friendly and has a certain industrial application value.
Owner:ANHUI HYEA AROMAS

Lily essence for daily chemicals and preparation method thereof

The invention provides a lily essence for daily chemicals and a preparation method thereof. The lily essence is prepared from the following raw materials: cis-6-nonenol; kalong; ethyl vanillin; florhydral; cyanine; allyl cyclohexyloxyacetate; prenylacetate; pino acetaldehyde%; melonal%; allyl heptylate; styralyl acetate; matricaria ester; fructone; cis-3-hexenyl acetate; ligustral; geranyl acetate; geranyl acetate; Delta-Damascone; hexyl acetate; cis-3-Hexenyl salicylate; sandalore; ethyl-2-methylbutyrate; vanillyl alcohol; phenoxyethyl isobutyrate; allyl cyclohexanepropionate; methyl decenol; phenethyl alcohol; cyclamen aldehyde; verdyl acetate; isomethyl ionone; lemon oil; benzyldimethylcarbinyl butyrate; 2-tert-butylcyclohexanol acetate; iso E super; galaxolide stock solution; peach aldehyde; hexyl salicylate; Lily aldehyde; linalool; methyl dihydrojasmonate; and dipropylene glycol. The lily essence has fresh and penetrating top note, strong natural sense, full body note, good floral sense, and lasting basic note.
Owner:广东铭康香精香料有限公司

Compositions comprising derivatives of essential oil compounds and use in personal care products

Compositions containing one or more derivatives of essential oil compounds for use in personal care compositions, such as compositions for oral, throat and skin care are disclosed. These derivatives include acetals of parent essential oil aldehydes and ketones; esters or ethers of parent essential oil alcohols and phenolics; and esters of parent essential oil acids. Examples of parent essential oil aldehydes and ketones include citral, cinnamic aldehyde, anisaldehyde, vanillin, ethyl vanillin, heliotropin, carvone, and menthone. Examples of parent essential oil alcohols and phenolics include thymol, eugenol, isoeugenol, dihydroeugenol, carvacrol, carveol, geraniol, nerol, vanillyl alcohol, heliotropyl alcohol, anisyl alcohol, cinnamyl alcohol and ss-ionol. Examples of parent essential oil acids include anisic acid, cinnamic acid, vanillic acid and geranic acid.; The present compositions comprising essential oil derivatives are useful as base flavor or base perfume for incorporation into personal care products and to provide other benefits including antimicrobial efficacy. Optionally the compositions will contain additional antimicrobially- or anti-inflammatory-effective components including those also derived from plant essential oils or synthetic versions thereof.
Owner:PROCTER & GAMBLE CO

Engineering strain for biologically producing ferulic acid and establishing method of engineering strain

ActiveCN103820375AAvoid poisoningEffective implementation methodBacteriaFermentationEscherichia coliAlcohol oxidase
The invention discloses an establishing method of an engineering strain for biologically producing ferulic acid and application of the engineering strain in production of the ferulic acid. The engineering strain enables a vanillyl alcohol alcohol oxidase gene, a coniferyl alcohol dehydrogenase gene and a coniferyl aldehyde dehydrogenase gene to be connected in series and multiply strongly expressed in escherichia coli by using a T7 promoter, and then eugenol is catalyzed to generate the ferulic acid through enzymatic reaction. Through the bioconversion method of the ferulic acid, poisoning of substrate eugenol to a production strain is avoided; the characteristics of simple process and high conversion rate are achieved.
Owner:湖州百肽诺生物科技有限公司

Medical application for reusing and improving sub-health and preparation method thereof

The invention discloses a medical application for reusing and improving sub-health and a preparation method thereof. The medical application comprises an application main body, a non-woven coating, a medical pressure sensitive adhesive coating and a soft silica gel coating; the application main body comprises 10-30 parts of medical silica gel, 10-20 parts of far infrared powder, 1-10 parts of anion powder, 5-10 parts of organic germanium powder, 1-5 parts of wheat rice stone powder, 1-5 parts of tourmaline powder, 2-4 parts of mint, 3-10 parts of wormwood extract, 2-7 parts of white mustard extract, 1-8 parts of vanillyl alcohol, and 1-9 parts of trace elements. In summary, the medical application for reusing and improving sub-health can improve the sub-health of the body and promote blood circulation, the body temperature can be improved by 3 degrees or above in 30 minutes, the medical application can be repeatedly used for 6 months and heats rapidly, the heating power is balanced, the temperature is appropriate, the heating duration is long, the local blood circulation of the body is promoted through the transfer of heat, microcirculation is improved, tissue hypoxia is prevented, the local organs and tissue pain are alleviated, and the medical application can be used for a long time.
Owner:夏天刚

Perfume essence added with musk and fruit ester

The invention discloses a perfume essence added with musk and fruit ester. The perfume essence mainly comprises the following components by mass percent: 15% of methyl dihydrojasmonate, 2% of alpha-hexylcinnamaldehyde, 4% of lilialdehyde, 40% of ambrotone, 2% of phenylethyl alcohol, 1% of dihydromyrcenol, 1% of cinnamic alcohol, 0.01% of leaf alcohol, 0.8% of vanillyl alcohol, 0.02% of linalool, 1% of geraniol, 5% of ethyl linalool, 6% of florol, 0.2% of dodecahydro-3a, 6, 6, 9a-tetramethyl-naphtol [2, 1-b] furan-3a, 6, 6, 9a-tetrame, 10% of musk and fruit ester and the like. The essence added with musk and fruit ester has the characteristics of stable structure, compound aroma, gradually-released fragrance, novel aroma and lasting fragrance.
Owner:TIANJIN DOUBLE HORSE FLAVOR & FRAGRANCE NEW TECH

Vanillin cross-linked chitosan oligosaccharide monoguanidine hydrochloride and microwave synthesis method thereof

ActiveCN109553786AWork around limitationsImprove the disadvantage of poor stabilityAntinoxious agentsChemical industrySolubility
The invention discloses a vanillin cross-linked chitosan oligosaccharide monoguanidine hydrochloride and a microwave synthesis method thereof, and the microwave synthesis method is as follows: takinga chitosan oligosaccharide product as a raw material, using thiourea trioxide obtained by oxidation under the double action of hydrogen peroxide and concentrated sulfuric acid to serve as a guanidination reagent, using vanillyl alcohol as a cross-linking agent, and carrying out a liquid-phase synthesis reaction under a microwave condition so as to obtain a vanillin cross-linked chitosan oligosaccharide hydrochloride derivative with a monoguanidine group; and washing the vanillin cross-linked chitosan oligosaccharide hydrochloride derivative with ethanol for multiple times to be neutral, and finally drying the solid in a vacuum drier at 40-80 DEG c until the water content of the material is less than 0.5%-10% to obtain the vanillin cross-linked chitosan oligosaccharide monoguanidine hydrochloride. The method disclosed by the invention has the advantages of simplicity, feasibility, few side reactions and the like, and meanwhile, the guanidine group and the cross-linked structure are introduced into the chitosan oligosaccharide with good biocompatibility, so that the biological activity, the stability and the solubility of the chitosan oligosaccharide are remarkably improved, and thevanillin cross-linked chitosan oligosaccharide monoguanidine hydrochloride has a wider application prospect in the fields of medicine, chemical industry, agriculture, food and the like.
Owner:TIANJIN UNIV

Method for synthesizing vanillyl ethyl ether

The present invention discloses synthesis process of vanillyl ethyl ether. Vanillyl ethyl ether is prepared with vanillyl alcohol and ethanol and through reaction at reflux temperature for 3-4 hr in the presence of catalyst of concentrated sulfuric acid, hydrochloric acid or cationic exchange resin Amberhite IR-120(H). Adopting cationic exchange resin Amberhite IR-120(H) as catalyst can result in high yield, low cost and less wastes.
Owner:上海香料研究所

Fragrance composition

The present invention relates to a fragrance composition that has a vanilla odor property, that is chemically stable and that can be blended in a variety of products, which can be an alternative material for vanillin or ethyl vanillin. The fragrance composition of the present invention comprises: A) one or more selected from the group consisting of vanillyl alcohol, ethylvanillyl alcohol, isovanillyl alcohol and veratryl alcohol; and B) one or more selected from the group consisting of 2-ethoxy-4-methylphenol, 2-methoxy-4-methylphenol, 2-ethoxy-5-methylphenol, 2-ethoxy-4-ethylphenol, 2-ethoxy-5-ethylphenol, 2-methoxy-p-cresol methyl carbonate and 2-ethoxy-5-(1-propenyl)-phenol, wherein the total content of component A and component B in the fragrance composition is 0.01-90% by mass, and the mixing ratio of component A and component B (on a mass basis) is in a range of 99:1-70:30.
Owner:TAKASAGO INTERNATIONAL CORPORATION

Orange-flavored essence

The invention relates to an orange-flavored essence, which comprises limonene, beta-myrcene, caryophyllene, citronellal, vanillyl alcohol, propionic acid vanilla fat, linalool, alpha-pinene, alpha-thujene, lanceol and cis-beta-ocimene. Ingredients of the orange-flavored essence are reasonably collocated, so that orange aroma is persistent, elegant, graceful, stable, and highly emulational. The raw material resources of the oranged-flavored essence are easy to obtain and the oranged-flavored essence can be used for flavoring candies and ice creams.
Owner:CHANGSHU ZHENMEN MALTOSE FACTORY

Pvax copolymer and pvax microparticles comprising the same

The present invention includes a vanillyl alcohol-containing copolyoxalate copolymer (PVAX). The present invention also includes a PVAX microparticle comprising PVAX. In one aspect, the compositions of the invention can be used as a drug delivery system, an antioxidant or anti-inflammatory composition, a composition for preventing or treating ischemic disease, a composition for inhibiting the side effects of anticancer drugs, a contrast agent, and / or a composition for diagnosing ischemic disease.
Owner:BETH ISRAEL DEACONESS MEDICAL CENT INC +1

Lemon oil essence and preparation method thereof

The invention belongs to the technical field of food additives, and particularly relates to lemon oil essence and a preparation method thereof. The lemon oil essence is prepared from the following rawmaterials in parts by weight: 10-20 parts of plant essential oil, 45-65 parts of fixative, 20-30 parts of aromatic alcohol, 3-5 parts of limonene, 1-2 parts of aldehyde component, 0.3-0.7 part of ester component, 0.04-0.07 part of vanillyl alcohol, 0.4-0.6 part of enol component and 0.01-0.03 part of antioxidant. The plant essential oil comprises sweet orange oil, white lemon oil and lemon oil. The lemon oil essence provided by the invention is added into soft sweets, has fresh and sweet lemon fragrance and pleasant fragrance, has good temperature resistance and lasting fragrance, can be added into the soft sweets without adding lemon juice, and meanwhile, the lemon oil essence has excellent stability and keeps the fragrance lasting, and moreover, oxidation, discoloration and flocculationphenomena are avoided.
Owner:广州和泉食品有限公司

Litchi essence

The invention discloses litchi essence which comprises the following components in percentage by weight: 65-95% of propylene glycol, 0.01-2% of dimethyl sulfide, 0.01-4.5% of ethyl acetate, 0.01-0.5% of alpha-terpilenol, 0.01-3% of d-limonene, 0.01-0.5% of ocimene, 0.01-1.5% of beta-caryophyllene, 0.01-0.5% of bisabolene, 0.01-2.3% of ethyl butyrate, 0.01-1.7% of linalool, 0.01-2.5% of beta-pinene, 0.01-4% of acetoin, 0.01-3% of phenethyl alcohol, 0.01-3% of nerol, 0.01-1.5% of geraniol, 0.01-1.8% of vanillyl alcohol, 0.01-0.2% of bitter orange flower oil, 0.01-0.5% of geranium oil, 0.01-1% of benzyl benzoate and 0.01-1% of 2-phenethyl phenylacetate.
Owner:阳江喜之郎果冻制造有限公司

Composite nanometer titanium dioxide for skin cream and preparation method thereof

The invention discloses composite nanometer titanium dioxide for skin cream, which is composed of the following components in parts by weight: 8-18 parts of nanometer titanium dioxide, 8-12 parts of mulberry leaf extract powder, 12-15 parts of talcum powder, 18-25 parts of silicone powder, 15-18 parts of far infrared ceramic powder, 35-40 parts of ferric oxide, 0.5-2 parts of colloidal silver, 0.5-1 part of spice, 0.1-0.5 part of vanillyl butyl ether, 0.5-0.8 part of borax, 2-4 parts of silicone oil, 7-9 part of vaseline, 5-8 parts of propylene glycol and 50-60 parts of de-ionized water. Composite nanometer titanium dioxide contains colloidal silver and the mulberry leaf extract powder; colloidal silver is capable of achieving convergence and repair effects on the existing wounds and the mulberry leaf extract powder is capable of removing acnes and freckles so that the skin becomes fine and smooth; the colloidal silver ions are also capable of promoting the skin to absorb the mulberry leaf extract powder so that the effect of the mulberry leaf extract powder is better; the far infrared ceramic powder and vanillyl alcohol in composite nanometer titanium dioxide serve as heating sources, as long as infrared rays are present, a biological heat source can be generated, and the two heating sources are matched with each other to generate heat uninterruptedly; besides, the product obtained by a preparation method provided by the invention is free of toxic and side effects, free of irritation, safe and reliable, and obvious in using effect.
Owner:句容亿格纳米材料厂

Methods of making capsinoids by biosynthetic processes

ActiveUS20190010522A1Organic compound preparationCarboxylic acid esters preparationCellulose biosynthetic processCapsaicin
Provided herein are methods of making capsinoids including providing a capsiate synthase in a mixture or cellular system, feeding 8-methyl-6-nonenoyl-CoA, 6E-8-methylnonenoic acid or 8-methylnonanoic acid into the mixture or cellular system, feeding vanillyl alcohol into the mixture or cellular system, and collecting capsinoids from the mixture or cellular system.
Owner:CONAGEN INC

Process for producing vanillyl alcohol butyl ether

The invention relates to a process for producing vanillyl alcohol butyl ether. The process comprises the following steps: 1, generation of vanillyl alcohol butyl ether: extracting n-butanol, adding the n-butanol into a reaction kettle, adding vanillyl alcohol, starting carry out heating, adding 100-500 kg of anhydrous sodium sulfate in four times when the kettle temperature is increased to 50-60 DEG C, controlling the time for adding the anhydrous sodium sulfate to be 10-15 hours at each time according to the rising situation of the kettle temperature, controlling the kettle temperature to bebetween 50 DEG C and 55 DEG C after the all the anhydrous sodium sulfate is added, and then keeping the temperature for 10-15 hours, and carrying out sampling and analyzing until the reaction is completed and the vanillyl alcohol butyl ether is obtained; 2, water washing and desolvation of the vanillyl alcohol butyl ether: pumping the vanillyl alcohol butyl ether generated by the reaction in the step 1 into a desolvation kettle, carrying out washing with water, then carrying out washing with saturated saline water for twice, and carrying out standing for layering; and 3, rectification of the vanillyl alcohol butyl ether product: carrying out rectification on the vanillyl alcohol butyl ether product by using a rectification kettle, starting a vacuum pump, heating the system, controlling thetemperature to be 80-120 DEG C, and collecting the qualified product rectified out when the product containing vanillyl alcohol butyl ether is larger than or equal to 97% into a qualified product tank.
Owner:TENGZHOU TIANSHUI BIO TECH CO LTD

Rose essence used in cream and preparation method thereof

The invention discloses rose essence used in cream and a preparation method thereof. The rose essence used in cream comprises the components in parts by weight: 150-180 parts of rhodinol, 200-230 parts of geraniol, 30-40 parts of geranium oil, 20-30 parts of linalool, 8-15 parts of cinnamyl alcohol, 80-100 parts of agastache rugosa oil, 40-50 parts of geranyl acetate, 10-20 parts of petitgrain oil, 20-40 parts of vanillyl alcohol and 3-8 parts of coumarin. The preparation method comprises: mixing the components, heating to 30-35 DEG C, stirring and mixing uniformly, cooling to room temperature, and filtering to obtain a filtrate which is the rose essence used in cream. The provided rose essence used in cream is capable of providing extremely good fragrance concentration and lasting time, and does not cause uncomfortable feeling on skin when applied to skin-care products, the fragrance lasting time is 6 h or more, and therefore the rose essence is extremely well applicable to cream.
Owner:NANTONG SHUANGHE FOOD

Use of vanillyl alcohol for the treatment of Parkinson's disease

A use of Vanillyl alcohol for treatment of Parkinson's disease is disclosed in accordance with the present invention. The Vanillyl alcohol's formula is 4-hydroxy-3-methoxy-benzyl alcohol and similitude with the human neurotransmitter dopamine. The Vanillyl alcohol has dopamine receptor stimulant and which is applied for pharmaceutical preparation of treating Parkinson's disease.
Owner:RED PHARMA & BIOTECH RES CORP

Plastic product with long-term sustained fragrance release function and preparation process thereof

The invention discloses a plastic product with a long-term sustained fragrance release function and a preparation process thereof. The plastic product comprises, by weight, 70-90 parts of plastic substrate, 5-10 parts of high-temperature-resistant carrier, 0.3-0.6 part of damascenone, 2-5 parts of propylene glycol, 0.1-5 parts of geraniol, 0.1-5 parts of vanillyl alcohol, 0.1-5 parts of rhodinol,0.1-5 parts of phenethyl alcohol, 0.1-5 parts of linalool, 0.1-5 parts of geranyl acetate, 0.1-5 parts of vanillin acetate and 0.1-5 parts of linalyl acetate. The plastic product and the preparation process thereof have the advantages that perfume and the plastic product can be effectively fused, the original smell of the perfume can be kept, and perfume molecules and plastic molecules can be perfectly combined during the injection molding of the perfume and the plastic to form the plastic product with lasting fragrance.
Owner:陈志年

Application of vanillin crosslinked chitosan oligosaccharide mono guanidine hydrochloride in preparation of anti-oxidation drugs

The invention discloses application of vanillin crosslinked chitosan oligosaccharide mono guanidine hydrochloride in preparation of anti-oxidation drugs. The application of the vanillin crosslinked chitosan oligosaccharide mono guanidine hydrochloride in the preparation of the anti-oxidation drugs comprises the following steps: taking a chitosan oligosaccharide product as a raw material, oxidizingunder double effects of hydrogen peroxide and concentrated sulfuric acid to obtain thiourea trioxide as a guanidination reagent, taking vanillyl alcohol as a crosslinking agent, carrying out liquid-phase synthetic reaction under a microwave condition to obtain a vanillin crosslinked chitosan oligosaccharide hydrochloride derivative with a mono guanidine group, repeatedly washing the vanillin crosslinked chitosan oligosaccharide hydrochloride derivative with the mono guanidine group to be neutral by using ethanol, and finally placing solid in a vacuum dryer and drying at the temperature of 40-80 DEG C until the water content of the material is smaller than 0.5%-10%. The method has the advantages of simplicity and easiness, less side reaction and the like, meanwhile, guanidyl and a crosslinked structure are introduced into chitosan oligosaccharide with good biological compatibility, thus, the bioactivity, stability and solubleness of the chitosan oligosaccharide are remarkably improved,and application in preparation of the anti-oxidation drugs is shown.
Owner:TIANJIN UNIV

Rose essence for lipstick

The invention discloses rose essence for a lipstick, which is characterized in that the compositions (by weight proportion) rose essence include: 0.8%-1.0% of ethyl citronellal, 5.0%-6.0% of hydroxy citronellal, 0.1%-0.3% of undecanal, 1.0%-1.3% of hexadecanal, 0.9%- 1.1% of musk ketone, 1.0%-1.1% of musk, 2.0%-2.3% of rose, 1.0%-1. 1% of citronellyl acetate, 2.0%- 2.2% of acetic acid geranyl acetate, 1.8%-2.0% of butyric acid geranyl acetate, 0.1%-0.2% phenylacetic acid, 4.0%-4.5% of linalyl acetate, 20.0%-22.0% of geraniol, 10.0% - 12.0% of vanillyl alcohol, 5.0%- 6.0% of linalool, 5 .0%-6.0% of rhodinol, 2.0%-2.5% of cinnamic alcohol, 20.0%-22.0% of phenethyl alcohol, 10.0%-11.0% of myrcene and 3 .5%- 4.0% of nerol. The rose essence for the lipstick has rich and pure aroma, long lasting and requires very small dosage.
Owner:王晓明

Preparation method and application of loaded nano gold catalyst

The invention discloses a preparation method and application of a loaded nano gold catalyst. The preparation method includes the following steps of preparing a carrier (Cu-Ce-OY); preparing the supported nano gold catalyst. The application particularly refers to application of the loaded nano gold catalyst in preparation of vanillin and includes the following steps of putting the prepared catalystand vanillyl alcohol in an inner container of a high-pressure reactor, and adding p-xylene and tetrahydrofuran to serve as a mixed solvent; connecting the high-pressure reactor with an argon steel cylinder, introducing argon, adjusting the temperature of an oil bath pot after air in the reactor is removed, placing the reactor in the oil bath pot after the temperature is controlled at reaction preset temperature T+ / -1 DEG C, conducting stirring, conducting cooling through an ice water bath after a reaction is completed, opening the reactor, taking out the inner container, sucking reaction liquid, and filtering the reaction liquid with a nano filter head to prepare the vanillin. Dehydrogenation preparation of the vanillin from vanillyl alcohol can be achieved without oxidants and hydrogen receptors, and the highest yield is up to 99% or above.
Owner:YUNNAN UNIV

Vanillylamine/vanillyl alcohol derivatives as well as preparation method and application thereof

The invention relates to vanillylamine / vanillyl alcohol derivatives as well as a preparation and an application thereof. The vanillylamine / vanillyl alcohol compound has good antibacterial activity, and is especially suitable for the application to preparation of antibacterial medicines due to inhibition effects for drug resistant strains; the invention belongs to the technical field of medicine as well as preparation and application of medicine.
Owner:EAST CHINA NORMAL UNIV +1

Technology for preparing vanillyl alcohol ether by using one step method

The invention relates to a technology for preparing vanillyl alcohol ether by using a one step method. The technology combines co-catalysis of a nano ruthenium metal catalyst and an immobilized tin phosphotungstate catalyst, and vanillin is subjected to a reaction for 18-24 hours under hydrogen pressure of 1-2 MPa and an alcohols solvent in a reaction vessel at the temperature of 20-60 DEG C to obtain vanillyl alcohol ether by using the one step method. The technology can be carried out under mild condition, has the advantages of environmental protection and high product yield, and is suitable for industrial production.
Owner:NANJING UNIV OF TECH

Saccharomyces cerevisiae engineering bacteria and application thereof in preparation of vanillin

The invention relates to the technical field of genetic engineering, in particular to saccharomyces cerevisiae engineering bacteria and application thereof in preparation of vanillin. According to the invention, on the basis of saccharomyces cerevisiae BY4742, ADH6, ADH7, BDH1 and BDH2 are knocked out, and at least one of exogenous genes 4CL and ECH is integrated; and / or at least one of endogenous genes Ari1, GRE2 and HFD1 is knocked out. According to the invention, by accurately controlling the transfer-in and knockout of the key genes, a brand new bioconversion path for synthesizing vanillin by using lignin is constructed in the yeast body, so that the metabolism path reduces the synthesis of vanillin, vanillyl alcohol and vanillic acid from vanillin, and the accumulation of vanillin is realized. Experiments show that the genetically engineered bacterium disclosed by the invention can fully utilize lignin and aromatic compounds derived from the lignin to produce vanillin in a large scale, so that not only can the problem of utilization of lignin be solved, but also industrial production of vanillin can be achieved.
Owner:TIANJIN UNIV

Method for preparing vanillyl alcohol by utilizing bacterial reduced vanillin

The invention relates to a method for preparing vanillyl alcohol by utilizing bacterial reduced vanillin. The method comprises the following steps: (1) extracting a loop of bacillus aceticus from an agar slant culture medium for storing a strain, inoculating the bacillus aceticus to a liquid seed culture medium, and performing culturing for 12 to 24 hours at 20 to 30 DEG C to activate the strain; (2) inoculating 6 to 10 volume percent of seed solution into a liquid fermentation culture medium, and performing shaking table culturing or standing culturing for 12 to 48 hours at 20 to 30 DEG C; (3) when a great amount of flocculate is generated in the liquid fermentation culture medium, adding a filtered and disinfected vanillin solution into the culture medium until the final concentration of vanillin in the culture medium reaches 0.1 to 3.0 mmol / L, and performing shaking table culturing or standing culturing for 0.5 to 7 days at 20 to 35 DEG C to obtain the vanillyl alcohol. According to the method, the conversion rate is high, and can reach 50 to 98 percent, reaction conditions are mild and environment-friendly, and the method has a broad application prospect.
Owner:DONGHUA UNIV

Floral and fruity flavoring essence, preparation method and application thereof

The invention relates to the field of essences, and particularly discloses a floral and fruity flavoring essence, a preparation method and application thereof. The floral and fruity flavoring essence comprises the following components: white flower alcohol, polysantalol, tetrahydrogeraniol, cis-4-Isopropylcyclohexylmethanol, methyl dihydrojasmonate, ambrotone, cis-jasmone, methylcyclopentadecenone, 2,2,5-trimethyl-5-pentylcyclopentanone, ligustron, Convallaria majalis ketone, methyl pamplemousse, hydroxyl vanillyl alcohol, vetiver acetate, bay leaf oil, a fixative, a modifier, a mixture, and a solvent. The preparation method comprises the following steps: weighing the components according to the proportion, mixing the components, refluxing and stirring, and standing for 24-48 hours to obtain the floral and fruity flavoring essence. According to the invention, the floral and fruity flavoring essence can be used in perfume, shampoo, shower gel and laundry detergent, and has the advantages of high coordination degree of fragrance and comfortable fragrance; and the preparation method has the advantages of being simple and convenient.
Owner:广州芬豪香精有限公司
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