238 results about "Ionone" patented technology

Described is a process and compositions for counteracting human sweat malodor. The compositions containing at least 10 weight percent of either 3,7-dimethyl-2,6-nonadienenitrile or 3,7-dimethyl-2,6-octadienenitrile. Additional ingredients may be added including napthyl methyl ether, methyl beta-naphthyl ketone, benzyl acetone, methanoinden propionates, methyl ionone, tetramethylnaphtho furan, ethylene glycol cyclic ester of dodecanedioic acid, 1-cyclohexadecen-6-one, 1-cycliheptadecen- 10-one, and corn mint oil. These compositions are applied to either fabric or a defined surface area of the human epidermis.

The present invention provides a liquid detergent composition, comprising: (a) a cleaning effective amount of an enzyme preferably selected from a proteolytic enzyme, an amylolytic enzyme, a lipolytic enzyme, a cellulolytic enzyme and mixtures thereof; (b) from 0.001 to 3% by weight of a perfume composition, not containing a perfume component selected from the group consisting of saturated and unsaturated linear aldehydes, lilial, cyclal c, vanillin, citral, cinnamic aldehyde, pulegone, terpinolene, gamma terpinene, alpha methylionone; (c) from 0.002 to 1% by weight of an antioxidant; and (d) a fatty acid soap in an amount of at most 4% by weight. Said detergent composition was found to have favourable storage stability characteristics.

Disclosed are oral care compositions effective to control mouth and breath malodour comprising in a pharmaceutically acceptable carrier, a combination of an antibacterial agent and a deodorizing or odor-neutralizing agent comprising a compound having the structurewherein R1, R2, R3, and R5 may be identical or different, each representing H, a linear or branched C1-C6 alkyl or alkenyl, phenyl, —OH or —ORa; R4 is —OH, —ORa, phenyl, or a linear or branched C1-C6 alkyl or alkenyl; and Ra is phenyl or a linear or branched C1-C6 alkyl or alkenyl. The odor-neutralizing agent may further comprise one or more of an additional odor-neutralizing compound selected from α-damascenone, α-isomethylionone, α-ionone, β-ionone, pulegone, piperitone, carvone, coenzyme Q10 or cinnamaldehyde.The antibacterial agent may comprise one or a mixture of a quaternary ammonium compound selected from cetylpyridinium chloride, tetradecylpyridinium chloride, N-tetradecyl-4-ethyl pyridinium chloride or domiphen bromide; metal ions such as stannous, zinc or copper; chlorhexidine; triclosan; triclosan monophosphate; or selected essential oils.

This invention relates to purification method of intermedium myristic aldehyde and device. The device has set heater, fractionating tower, falling film reboiler, falling film evaporator and condenser. Raw myristic aldehyde outlet of heater connect with fractionating tower inlet; steam outlet of fractionating tower top connect with condenser steam inlet; one way of first condenser condensed fluid outlet connect with reflux liquid inlet of fractionating tower top, the other way outflow low boiler of beta - ionone. Dephlegmation tower bottom outlet respectively connect with falling film reboiler overhead entrance and falling film evaporator overhead entrance; falling film reboiler bottom outlet connect with fractionating tower bottom entrance; one way of falling film evaporator outlet connect with second condenser entrance, the other way is outlet of high boil thing; second condenser outlet is outlet of refine myristic aldehyde. Whil purification first send raw myristic aldehyde to fractionating tower, gain distillate from fractionating tower top. The distillate enter fractionating tower bottom tower kettle, pass through falling film evaporator to remove high boil thing.

The industrial preparation method of high-purity beta-ionone is characterized by that 1. regulating dose of acetone, water and alkali to make the condensation reaction of citral and acetone be implemented under the condition of approaching to homogeneous phase, its reaction condition is moderate, reaction time is short and yield is high; 2. when the pseudo ionone is undergone the process of cyclization, at the same time the carbon dioxide ice is added so as to effectively prevent reaction system from local overheating and make the selectivity for forming beta-ionone be greater than 99%. Said invention can obviously raise product quality and yield, in the product the beta-ionone content is greater than or equal to 96.0%, alpha-ionone content is less than or equal to 1.0% and the yield is up to 72.0-85.0%.

The invention discloses a formula of tobacco flavoring essence with sweet essence. According to the formula, the tobacco flavoring essence consists of the following components in percentage by mass: 1.0 to 4.0 percent of ethyl maltol, 2.0 to 3.0 percent of plum extractum, 1.0 to 2.0 percent of phenethyl ethanol, 0.01 to 0.1 percent of damascenone, 0.1 to 0.5 percent of phenylacetic acid ethylester, 0.5 to 1.0 percent of methyl cyclopentenotone, 2.0 to 5.0 percent of red date extractum, 0.01 to 0.03 percent of linalool, 0.02 to 0.08 percent of 5-methylfurfural, 0.1 to 0.5 percent of benzoic acid, 0.05 to 0.15 percent of beta-irisone, 0.02 to 0.08 percent of 4-guaethol, 15 to 25 percent of glycerol, 45 to 55 percent of propylene glycol and 3 to 15 percent of purified water. By the formula, tobacco produces sweet fragrance, tobacco fragrance can be increased and taste of the tobacco can be adjusted, so that the taste of the tobacco is improved, the natural sweet fragrance of the tobacco is enhanced and dry, astringent and bitter mouthfeel of customers is improved and requirements of the customers are met.

A cleaner composition comprises a surfactant, a sodium source, an odor neutralizer, a fragrance, and a biocide, wherein the odor neutralizer comprises a betaine compound, aminoalcohol, a polyol, and an ionone, and wherein the cleaner composition is stable at a pH of about 9.5 to about 11.5 when stored for 24 months at a temperature of about 25 DEG C. A spray dispenser comprises the cleaner composition and a propellant. Also described is a method of cleaning, deodorizing, or a combination thereof, automobile interiors by applying the disclosed cleaner composition to an automobile interior.

The invention relates to an essence, in particular to a flavored essence for increasing cigarette sour and sweet note. The flavored essence is made of raw materials including, in weight percent, 0.5-0.8% of 1% hydroxycitronellal, 1-2% of ethyl acetate, 5-8% of isoamyl acetate, 0.01-0.5% of beta-damascenone, 0.01-0.8% of dihydroactinidiolide, 0.01-0.8% of alpha-ionone, 1-2.5% of vanillin, 0.5-4% of butyric acid butylester, 0.5-5% of acetic acid, 0.5-5% of lactic acid, 4-10% of dried apricot slices extract, 4-10% of plum extract, 1-5% of tomato extract, 0.5-2% of iris extract, 3-8% of Zimbabwe tobacco extract, 20-30% of propanediol and 4.1-61.67% of 70% ethyl alcohol. The flavored essence solves the problems that an existing cigarette is single in fragrance and obvious in offensive odor and stimulation, smoking satisfaction and enjoyment of the cigarette is improved, the aroma amount of the cigarette is increased, obvious sour and sweet note is given for the cigarette, the flavored essence is rich in fragrance, and stimulation is reduced.

The invention discloses a preparation method of a solid alkali catalyst and a reaction method for the catalytic synthesis of an ionone fragrance intermediate by the solid alkali catalyst. The preparation method of the solid alkali catalyst comprises the following steps: putting a carrier in a flask, adding KF (Potassium Fluoride) aqueous solution, stirring for 4-9h at the temperature of 40-80DEG C in an ultrasonic oscillator, then, stirring at the temperature of 89-99DEG C until a mixture is viscous, drying the mixture, roasting for 4-7h at the temperature of 400-600DEG C, and cooling to obtain the solid alkali catalyst which loads KF on the carrier, wherein the carrier is one of aluminium oxide or magnesium oxide or calcium oxide. Since an ultrasonic-assisted excessive dipping method is adopted to prepare the solid alkali catalyst, the loading capability and the dipping rate of active components are effectively improved. In addition, when the solid alkali catalyst prepared with the preparation method is used for carrying out the catalytic synthesis of the ionone fragrance intermediate, a subsequent alkali neutralization operation carried out when liquid alkali catalyst is used is avoided, cost is lowered, sewage is reduced, catalytic reaction has a high yield, the catalyst and a product can be easily separated, and the catalyst can be repeatedly used.

This invention discloses a rose essence, which comprises: crimson glory flower concrete 0.5-2.0 wt.%, cinnamyl alcohol 1.0-3.0 wt.%, phenylethanol 5.0-15.0 wt.%, rose absolute oil 0.5-2.0 wt.%, Jasminum sambac concrete 0.5-2.0 wt.%, linalool 1.5-3.0 wt.%, pearl everlasting oil 1.0-3.0 wt.%, patchouly oil 0.5-3.0 wt.%, 92% ionone 6.0-12.0 wt.%, geranium oil 7.0-15.0 wt.%, 208# sandalwood 2-7.0 wt.%, ylang oil 1.5-5 wt.%, lilial 1.5-5 wt.%, damascene 6.0-15.0 wt.%, methyl dihydrojasmonate 3.0-7.0 wt.%, Jiale muskiness 1.0-6 wt.%, Petitgrain oil 1.5-5 wt.%, citronellol 8.0-20.0 wt.%, rose oil 0.5-2.0 wt.%, 10% delta-decalactone 0.2-1.0 wt.%, rose nitrile 1.0-3.5 wt.%, geraniol 8.0-15.0 wt.%, lemon oil 2.0-6.0 wt.%, and methyl ionone 0.5-3.0 wt.%. The rose essence can be used in fragrant products, such as white cream, and emulsion, and has such advantages as lasting color, pure and lasting fragrance, and small dosage.

Fragrance composition targeted at delivering well-being benefits through fragrant, low level positive mood stimulation. The composition comprises at least 75% by weight of perfume materials comprising at least 5% by weight of at least three materials drawn from Group ‘HMP’ comprising, for example, 1-(2,6,6,8-tetramethyltricyclo[5.3.1.0{1,5}]undec-8-en-9-yl)ethanone; allyl cyclohexylpropionate; allyl heptanoate; Apple Oliffac S pcmf; 7-methyl-2H-1,5-benzodioxepin-3(4H)-one; cassis base; and optionally up to 95% of materials selected from groups identified as Groups “HMR”, “HMI”, “RMP”, “IMP” and “Gen”, represented respectively by, for example, allyl ionone; dihydromyrcenol; anisic aldehyde; allyl amyl glycolate and cyclopentadecanolide; in specified relationships.

The invention discloses a tea-seed oil skin care massage oil and a preparation method thereof, wherein, the skin care massage oil includes and is prepared by pure tea-seed oil, leaf alcohol, cinnamomum camphora ho oil, jasmine tea monosodium glutamate, aurantiol, linalool, ionone, tea polyphenol and tea spirane azululanone. When in preparation, firstly, the pure tea-seed oil material is put into a stirrer and is stirred for 10-15 minutes clockwise; then, the leaf alcohol, the cinnamomum camphora ho oil, the jasmine tea monosodium glutamate, the aurantiol, the linalool, the ionone, the tea polyphenol and the tea spirane azululanone are mixed with the pure tea-seed oil; the mixture is stirred for 60-80 minutes clockwise and is stirred for 45-60 minutes counterclockwise; the mixed material is cooled for 24 hours and then is stirred by the stirrer for 20-25 minutes clockwise, and the rotating speed of the stirrer is 60-100 r / min to the best; after that, the mixed material is stirred for 15-25 minutes counterclockwise; after encapsulation and package, the obtained mixture enters warehouse by the detection of IQC; the stock requirements are shade, ventilation and dry special warehouse, and the optimum temperature is 10 DEG C to 20 DEG C.

(3R,3′R,6′R)-Lutein and (3R,3′R)-zeaxanthin are two dietary carotenoids that are present in most fruits and vegetables commonly consumed in the US. These carotenoids accumulate in the human plasma, major organs, and ocular tissues. In the past decade, numerous epidemiological and experimental studies have shown that lutein and zeaxanthin play an important role in the prevention of age-related macular degeneration (AMD) that is the leading cause of blindness in the U.S. and Western World. The invention provides a process for the synthesis of (3R,3′R,6′R)-lutein and its stereoisomers from commercially available (rac)-α-ionone by a C15+C10+C15 coupling strategy. In addition, the present invention also provides access to the precursors of optically active carotenoids with 3-hydroxy-ε-end group that are otherwise difficult to synthesize. The process developed for the synthesis of lutein and its stereoisomers is straightforward and has potential for commercialization.

Under the condition of constant temperature the prepared solid super acidic catalyst is added into the acetone solution, under the protection of nitrogen gas the pseudo ionone can be slowly added while stirring, after the reaction is completed, the solid super acidic catalyst is fertered and separated, then the acetone can be separated out in rotary evaporator, finally, the target product beta-ionone can be separated out by utilizing reduced pressure distillation process.

The invention relates to rose muscat hamburg shower gel. The rose muscat hamburg shower gel has the stable fragrance. No huge fragrance difference is caused by individual differences of rose essential oil. The shower gel is prepared from, by weight, 10-20 parts of fatty alcohol-polyoxyethylene ether sodium sulfate, 10-15 parts of cocamidopropyl betaine, 3-8 parts of dodecyl dimethyl betaine, 0.1-0.9 part of beewax, 0.5-1.5 parts of honey, 1-5 parts of glycerinum, 1-3 parts of pectin, 0.2-0.8 part of gelatin, 0.05-0.3 part of vitamin E and 1-5 parts of flavoring rose essence. The rose essence is prepared from, by mass, 41.70% of phenethyl alcohol, 34.00% of rhodinol, 2.50% of linalool, 1.00% of phenethyl alcohol, 6.00% of silvanone supra, 0.4% of rose essential oil of a DEP solution with the mass fraction being 10%, 0.40% of undecental of a DEP solution with the mass fraction being 50%, 3.00% of geraniol acetate, 1.00% of bourbon geranium oil, 3.00% of ionone, 1.00% of three-bud leaf oil and 1.00% of lemon oil. The ionone is composed of alpha-ionone, beta-ionone and gamma-ionone, wherein the amount of substances of alpha-ionone to beta-ionone to gamma-ionone is 20:20:1.

The invention discloses a method for preparing a vitamin A intermediate 2,4-di-double-bond 15-carbon phosphonate. The prior methods use beta-ionone as a raw material and have long synthetic routes which are often more than three steps. The method n uses the beta-ionone as the raw material to perform condensation reaction with ethylene tetraethyl diphosphonate to obtain the target compound 2,4-di-double-bond 15-carbon diethyl phosphonate. The method uses the beta-ionone as the raw material to generate the target product 2,4-di-double-bond 15-carbon phosphonate only through one-step reaction, and has simple process route and great industrial value.

The invention discloses the formula of tobacco additive essence of a hami melon fragrance, which comprises the following components in percentage by mass: 0.01 to 0.05 percent of palmitic acid, 0.01 to 0.05 percent of benzoic acid, 0.05 to 0.2 percent of ethyl maltol, 0.1 to 0.2 percent of Yunyan essence, 1 to 5 percent of Virginia tobacco extract, 0.01 to 0.05 percent of beta ionone, 0.5 to 1 percent of ethyl acetate, 0.001 to 0.01 percent of gamma-heptalactone, 0.1 to 0.8 percent of menthyl acetate, 0.1 to 0.8 percent of ethyl propionate, 0.1 to 1 percent of Yunyan absolute oil, 0.5 to 2 percent of hami melon extract, 0.01 to 0.1 percent of dihydrocoumarin, 1 to 10 percent of sorbierite, 1 to 5 percent of edible alcohol and 80 to 90 percent of propylene glycol. In the formula of tobaccoadditive essence of the hami melon fragrance, the addition of the hami melon extract offers a hami melon fragrance to the tobacco, improves the fragrance of the tobacco and corrects smoke smell, so the smoke smell of the tobacco is improved, the nature sweet fragrance of the tobacco is improved, the dry, harsh and bitter mouthfeel of users is improved, and requirements of the users are met.

The method for synthesizing pseudoisomethyl ionone-intermediate product of perfume includes the following steps: in butanone-2, adding or no adding organic solvent, alkali or alkali earth metal hydroxide and inhibitor in turn, the mole ratio of alkali and citral is 0.75-0.9:1, the mole ratio of inhibitor and citral is 0.0101-0.02:1, and according to the mole ratio of citral and butanone-2 which is 1:7-13 drop-adding citral, dropp-adding time is 1-3 hr. reaction temp. is 20-40 deg.C and reaction time is 4-6 hr. After the reaction is completed, recovering solvent and butanone-2, using acetic acid or methyl formate to neutralize residual material to make pH by 6.5-6.8, washing with clean water, adding plasticizer in oil layer to make fractionation, addition quantity of plasticizer is 1-5% of oil layer weight, and obtain pseudoisomethyl ionone.

The invention discloses a hydrotalcite-like thin membrane which is grown on an aluminum substrate with surface anode oxidation and used as a structuring catalyst in the field of membrane catalysis, so as to catalyze the optimal feed ratio of citral to acetone during the aldol condensation reaction of the citral and the acetone. The in-situ synthesis technology is adopted for preparing the hydrotalcite-like thin membrane on an aluminum sheet after the surface anode oxidation, the high-temperature calcination and the re-hydration are further carried out, and the hydrotalcite-like structuring catalyst which takes aluminum as the substrate is finally obtained. The prepared structuring catalyst can be effectively used for the aldol condensation reaction of the citral and the acetone, solve a series of problems caused by a liquid base catalyst and a solid base catalyst and lead the process to meet the requirements on environmental protection and sustainable development; more importantly, the use of the structuring catalyst can effectively reduce the molar ratio of acetone / citral to 1, thereby obtaining great catalytic effect.

A fragrance composition for reducing lingering tobacco odor, said fragrance composition comprising an ionone selected from the group consisting of alpha-ionone, beta-ionone and methyl ionone together with other fragrance component(s).

The invention discloses a preparation method of a nano cup array biosensor for ionone detection. The method comprises the steps that a nanoscale cup-shaped structure is constructed by a nano impressing technology; gold nanoparticles are deposited on a side wall of a nano cup; odorant binding protein Acer-ASP2 is fixed on the side wall of the nano cup by electrostatic adsorption of the gold nanoparticles; during detection, a target molecule ionone is specifically bound with the odorant binding protein to result in change of an optical refraction characteristic of the side wall of the nano cup; and a spectrum of transmission light passing through the biosensor is changed correspondingly, so that the detection of the target molecule ionone is realized. Compared with the traditional ionone detection means, the nano cup array biosensor avoids a complicated light path required by optical detection and is simple, convenient and quick to operate based on the advantages of high sensitivity and specificity of the optical detection means.

The invention discloses a formula of tobacco flavoring essence with sweet fragrance. According to the formula, the tobacco flavoring essence consists of the following components in percentage by mass: 1.0 to 4.0 percent of ethyl maltol, 2.0 to 3.0 percent of plum extractum, 1.0 to 2.0 percent of phenethyl ethanol, 0.01 to 0.1 percent of damascenone, 0.1 to 0.5 percent of phenylacetic acid ethyl ester, 0.5 to 1.0 percent of methyl cyclopentenotone, 2.0 to 5.0 percent of red date extractum, 0.01 to 0.03 percent of linalool, 0.02 to 0.08 percent of 5-methyl furfural, 0.1 to 0.5 percent of benzoic acid, 0.05 to 0.15 percent of beta-irisone, 0.02 to 0.08 percent of 4-guaethol, 15 to 25 percent of glycerol, 45 to 55 percent of propylene glycol and 8 to 15 percent of purified water. By the formula, tobacco produces sweet fragrance, tobacco fragrance can be increased and taste of the tobacco can be adjusted, so that the taste of the tobacco is improved, the natural sweet fragrance of the tobacco is enhanced, dry, astringent and bitter mouthfeel of customers is improved and requirements of the customers are met.

The invention discloses a tobacco essence with spicy fragrance. The tobacco essence with spicy fragrance is prepared from a solvent, cinnamon leaf oil, cinnamyl cinnamate, eugenol, clove bud oil, anise oil, fennel oil, fenugreek absolute oil, gamma-octolactone, gamma-undecalactone, jujube acid, lactic acid, beta-ionone, furanone, ethyl maltol and tolu balsam according to a certain proportion. Thecinnamon leaf oil, the lilac bud oil, the anise oil and the fennel oil all have typical spicy fragrance, the cinnamon leaf oil and the lilac bud oil are main spicy fragrance and matched with fenugreekabsolute oil and lactones to improve the smoking taste, and the fragrance is improved through lactic acid and the like. According to the spicy aroma formula disclosed in the invention for cigarettes,the spicy aroma of the cigarette smoke can be remarkably improved, the original aroma of tobaccos is more coordinated with the spicy aroma, the irritation of the cigarettes is reduced, and the smokeis bright, mellow and full, and the aftertaste is sweet.

The invention relates to a method for preparing beta-ionone from modified acidic functionalized ionic liquid. The method includes the following steps that the modified acidic functionalized ionic liquid serves as a catalyst, and pseudo ionone is cyclized into beta-ionone. The modified acidic functionalized ionic liquid serves as the catalyst, the high reactive transformation rate and beta-ionone yield are achieved, the reactive transformation rate reaches 99% or above, and the beta-ionone yield reaches 94% or above. The catalyst can still keep the high transformation rate and yield after being separated and applied mechanically multiple times, the reactive transformation rate still reaches 99% or above, and the reaction yield is still kept at 90% or above.

The invention discloses a synthesis method of (S)-(-)-alpha-damascenone, which comprises the following steps: adding alpha-ionone into an alcohol or ether solvent, adding a hydrogen peroxide water solution and a sodium hydroxide water solution, stirring to perform double bond oxidization reaction to generate alpha,beta-epoxy-alpha-ionone, adding tetrahydrofuran, water and ethanol to generate beta-epoxy-alpha-ionone under the catalytic action of an aluminum-mercury mixture, carrying out ring-opening hydrogenation to generate 4-hydroxy-4-(2,6,6-trimethylcyclohexyl-2-alkenyl)-2-butanone, adding acetonitrile and an acetic acid solution to react with Me4NHB(OAc) to obtain a raw material diol, reacting the diol with vinyl acetate and methyl tert-butyl ether under the catalytic action of lipase while stirring to obtain an optical isomer diol, adding DMP (dimethylpyrazole) and CH2Cl2 to react to obtain propyl 1-methyl-3-oxo-3-(2,6,6-trimethyl-cyclohexyl-2-alkenyl)-acetate, and carrying out elimination reaction under the catalytic action of inorganic alkali to generate the (S)-(-)-alpha-damascenone dominant antipode. The method has the advantages of cheap and accessible raw materials, mild reaction conditions and higher conversion rate, is simple to operate, and can obtain the antipode with higher optical purity.

The invention discloses a preparation method of beta-damascenone spice. The preparation method comprises the following steps: (1) by taking beta-ionone as an initial raw material, carrying out a reaction with hydroxylamine hydrochloride in an alkaline environment to obtain beta-ionone oxime; (2) carrying out a reaction on beta-ionone oxime and halogens and metal salt thereof to obtain a beta-ionone oxime isoxazole derivative; (3) acting on the eta-ionone oxime isoxazole derivative and sodium to generate beta-dihydrodamascenone; and (4) carrying out an oxidizing halogenating reaction on beta-dihydrodamascenone and free radicals of halogens and carrying out an elimination reaction of removing halogen hydride under the alkaline environment to obtain the beta-damascenone. The preparation method disclosed by the invention is cheap and easily available in raw materials, simple to operate, mild in reaction condition, high in yield of reactions and low in cost, and the solvent used can be recycled, so that the preparation method is a method suitable for industrially producing beta-damascenone spice.

The invention relates to a method for preparing ionone by catalyzing pseudoionone cyclization by using a super-strong acid or super-strong-acid-based ionic liquid as a catalyst. The existing solid acid catalyst for preparing ionone has obviously lower catalytic efficiency, and the ionone yield is basically lower than 80%, thereby being difficult to implement industrialization from the view of cost. The method comprises the following step: by using the super-strong acid or super-strong-acid-based ionic liquid as a catalyst, reacting at 60-100 DEG C in the presence of a solvent for 1-7 hours to cyclize pseudoionone into ionone. The super-strong acid or super-strong-acid-based ionic liquid is used as the catalyst, thereby implementing high reaction conversion rate and yield; and the catalyst still has high reaction conversion rate and yield after being recovered and used many times.

The invention relates to lemon essence for water-based ink. The lemon essence is prepared from, by weight, 1%-30% of lemon essence, 5%-55% of compound modification oligosaccharide and deionized water. The lemon essence is composed of lemon oil, litsea cubeba oil, citral diethyl acetal, myrac aldehyde, bergamot aldehyde, lemonile, decanal, caprylic aldehyde, dodecanenitrile, citonellye nitrile, ethyl methylphenylglycidate, linalyl acetate, linalool, lilial, benzyl acetate, cyclamen aldehyde, terpilenol, terpinyl acetate, anisic aldehyde, verdyl acetate, geraniol, geranyl acetate, citronellol, citronellyl acetate, isocyclocitral, styralyl acetate, isoeugenol, ionone, heliotropin, iso-longitolanone, HHCB and ethyl alcohol. The invention further provides a preparation method of the lemon essence for the water-based ink. According to the lemon essence for the water-based ink and the preparation method of the lemon essence, the compound modification oligosaccharide is used as a wall material, the lemon essence is wrapped so that lemon nanocapsule slow-release essence can be formed, and therefore fragrance depositing and water solubility of the essence are improved.

The invention discloses a method for improvement of aroma quality of sea-buckthorn wine by use of beta-carotene compounds. The method comprises the following steps: 1) selecting a beta-carotene food-grade raw material; 2) emulsifying beta-carotene with twain-80, wherein emulsion ingredients comprising 0.995% of twain, 99% of water and 0.005% of the beta-carotene; 3) preparing an emulsion; 4) adding the beta-carotene emulsion into the sea-buckthorn wine or sea-buckthorn fermented mash; and 5) carrying on ageing of the sea-buckthorn wine added with the beta-carotene emulsion. Through use of the method, the content of norsoprenoids beta-cyclocitral in the sea-buckthorn wine can reach 0.11 mg / L, the content of norsoprenoids ionone in the sea-buckthorn fermented mash can reach 0.11 mg / L, the content of 2,2,6-trimethyl cyclohexanone can reach 0.07 mg / L, the content of 3,5,5- trimethyl-2-cyclohexene-1-one can reach 0.06 mg / L, and the aroma quality of the sea-buckthorn wine is significantly improved.