101 results about "Phenethyl alcohol" patented technology

The invention discloses hansenula polymorpha with low ethanol yield and high aroma yield and application of hansenula polymorpha, and belongs to the technical field of microorganisms. According to the invention, a strain of high-aroma-yield saccharomycetes, which is hanseniaspora uvarium, is separated from fruits, and the preservation number of the saccharomycetes is CCTCC (China Center for Type Culture Collection) NO: M 20242562. The quality of the low-alcohol yellow peach beverage fermented by the high-aroma-yield strain provided by the invention is improved, and the alcoholic strength after fermentation is well reduced and is only 0.4% vol. Through flavor substance detection before and after fermentation, flavor substances generated by the strain are rich in variety, for example, 90.73 mu g / kg of phenethyl alcohol is newly generated. Sensory evaluation shows that the low-alcohol yellow peach beverage fermented by the strain is outstanding in flower fragrance and fruit fragrance, the richness and the balance degree are improved, it is proved that the overall flavor characteristics of the low-alcohol beverage can be remarkably improved, and more pleasant sensory experience is brought to consumers.

The invention discloses engineered saccharomyces cerevisiae and application of the engineered saccharomyces cerevisiae in synthesis of 2-phenethyl alcohol, and belongs to the technical field of genetic engineering. According to the engineering saccharomyces cerevisiae, saccharomyces cerevisiae CICC 33068 is modified, and the strain is modified through strategies such as aldrin pathway enhancement, precursor enhancement, tolerance optimization and cofactor balance. The constructed engineered strain has good metabolic performance and stability, not only is the tolerance of the engineered strain to 2-phenethyl alcohol improved, but also the production capacity of the 2-phenethyl alcohol is remarkably improved. Therefore, the engineered saccharomyces cerevisiae disclosed by the invention has remarkable advantages in production of the 2-phenethyl alcohol, can provide technical guidance for industrial production of the 2-phenethyl alcohol, and has a good application prospect.

The invention belongs to the technical field of forest chemical industry and natural perfume extraction and separation, and particularly discloses a superheated steam distillation separation and recovery method for perfume components in cinnamon oil rectifying still residues. The method comprises the following steps: processing the cinnamon oil rectifying still residues by adopting a steam distillation method taking normal-pressure superheated steam as a desorption medium, carrying out condensation cooling and phase separation on distilled oil-water mixed gas, and collecting oily liquid or crystalline solid containing cinnamon spice components, and carrying out one or more physical isolation methods such as freezing crystallization, vacuum fractionation or rectification, recrystallization and the like to obtain natural cinnamon monomer spices such as o-methoxycinnamaldehyde, o-methoxycinnamic acid, phenethyl alcohol and the like. The method has the advantages of low equipment investment, simple and feasible operation, low production cost, clean and pollution-free process, good operation safety, high industrial application feasibility and the like.

The invention discloses yoghurt oil with fruity flavor and a preparation method of the yoghurt oil, and belongs to the technical field of yoghurt oil processing. The Lactococcus lactis SITRS-0011 provided by the invention can be independently used as a leavening agent, when the Lactococcus lactis SITRS-0011 is used for fermenting yoghurt oil, the titration acidity can reach 83.21 DEG T, the yoghurt oil contains 2, 3-butanedione (1180 [mu] g / kg), acetoin (2092 [mu] g / kg), lactones (623 [mu] g / kg), 3-methylbutyraldehyde (117 [mu] g / kg), phenethyl alcohol (1863 [mu] g / kg), phenylacetaldehyde (336 [mu] g / kg) and other substances, and the Lactococcus lactis SITRS-0011 is rich in milk flavor, has flower fragrance and nut flavor, is unique in flavor, and can be used for preparing the and the overall sensory score is high.

The invention discloses a strain of saccharomyces cerevisiae CPJ-02 with high acid resistance, high ethanol content and strong ester aroma generation and application of the saccharomyces cerevisiae CPJ-02, the strain of the saccharomyces cerevisiae CPJ-02 has been preserved in China Center for Type Culture Collection on June 27, 2024; the preservation number of the strain is CCTCC NO: M 20241388. The saccharomyces cerevisiae CPJ-02 strain is milky white to faint yellow after being cultured on a YPD solid plate for 48 hours, the surface is dry and matte, the texture is slightly rough, and the colonial morphology is round. The saccharomyces cerevisiae CPJ-02 strain has prominent high ethanol tolerance, and still has activity greater than or equal to 92% in a 12% ethanol environment; and the fermentation product is rich in aroma and high in ethyl caprylate and phenethyl alcohol content, more than or equal to 25 volatile substances are detected by GC-MS (gas chromatography-mass spectrometry), and the fermented product is rich in fruit fragrance and has ester flower fragrance. The saccharomyces cerevisiae CPJ-02 strain is suitable for production of high-concentration wines and directional production of low-concentration healthy fermented beverages, fermented foods and aroma compounds.

The invention belongs to the technical field of tea quality regulation and control, and particularly relates to a key sniffing substance for improving white tea pekoe flavor and a screening method and application thereof, the screening method comprises the following steps: firstly collecting typical pekoe white tea samples and preparing mixed samples, and identifying 77 sniffing substances by adopting stirring rod adsorption extraction in combination with a gas chromatography-sniffing / mass spectrometry technology; the method comprises the following steps: determining phenethyl alcohol and epi-piper cubeba alcohol as key pekoe aroma substances through aroma dilution analysis and quantitative analysis by a standard addition method in combination with aroma recombination and deletion experiments; the screened key substances are added into a tea blank matrix according to the concentration and proportion in a tea sample, and the pekoe flavor characteristic flavor (Plt; 0.05) can be remarkably improved. According to the invention, the key substance basis of white tea pekoe fragrance is determined for the first time, and the screened pekoe fragrance key smelly substance can be directly applied to quality regulation and control of white tea production and deep processing product development.

The invention discloses saccharomyces cerevisiae XJ-YSSCE010-1 with high temperature resistance, high ethanol yield and low fusel oil yield and application of the saccharomyces cerevisiae XJ-YSSCE010-1, and belongs to the technical field of microbial fermentation. The saccharomyces cerevisiae XJ-YSSCE010-1 disclosed by the invention is separated and screened from Maotai-flavor liquor yeast, and is preserved in the China General Microbiological Culture Collection Center (CGMCC), and the preservation number is CGMCC No.31174. The fusel oil comprises the following main components: n-propanol, isobutanol, isoamyl alcohol, phenethyl alcohol and the like, wherein isobutanol and isoamyl alcohol have the highest toxicity. The saccharomyces cerevisiae XJ-YSSCE010-1 disclosed by the invention shows the advantages of high yield of ethanol, low yield of fusel oil and no production of isobutanol and isoamyl alcohol in liquid fermentation and simulated high-temperature stacking fermentation experiments, and the saccharomyces cerevisiae XJ-YSSCE010-1 is applied to preparation of white spirit, so that the production efficiency of the white spirit is improved, and the quality of the white spirit is improved.

The invention discloses Leishan fish sauce sour essence as well as a preparation method and application thereof. The leishan fish sauce acid essence is prepared from ethyl acetate, absolute ethyl alcohol, ethyl isovalerate, ethyl hexanoate, isoamyl alcohol, furfuryl alcohol, ethyl lactate, ethyl caprylate, acetic acid, diethyl succinate, methyl salicylate, ethyl benzoate, ethyl laurate, hexanoic acid, phenethyl alcohol, 4-methyl guaiacol, ethyl myristate, ethyl palmitate, ethyl oleate, capsicum oleoresin, ethyl phenylacetate and ginger oil. And lactic acid, glycerol triacetate, ocimene, ethyl isovalerate, ethyl butyrate, anethole and phenylacetaldehyde. The Leishan fish sauce sour essence disclosed by the invention is soft and harmonious in overall fragrance, natural and vivid, still has stable flavor characteristics at high temperature, can make up the problem of flavor deficiency in sour soup products, realizes accurate reproduction and controllable release of composite fragrance, improves the standardization level of products, and effectively improves the preference degree of consumers.

The present invention discloses a variable-valence metal mercapto two-dimensional coordination polymer, its preparation method and application. The method comprises the following steps: S1. Mix an inorganic metal salt and 4,4'-thiobis(phenethyl alcohol) in a mixed solvent of an ionic liquid, an organic amine, N,N-dimethylformamide and isopropanol. After complete dissolution, carry out an ionothermal reaction; S2. Separate the mixture after the ionothermal reaction, and then wash and dry the separated solid phase with an alcohol until a pure-phase colored or colorless octahedral crystal is obtained, namely, a variable-valence metal mercapto two-dimensional coordination polymer is obtained; the variable-valence metal mercapto two-dimensional coordination polymer is an organic-inorganic hybrid compound, which is a colored or colorless octahedral crystal and can be applied to catalytic, electrical conductance, and photothermal conversion devices.

The present application provides compositions and methods for treatment of ocular inflammatory conditions, dry eye diseases, and abnormal corneal neovascularization, using etiprednol. In one example, a composition is provided comprising a semi-fluorinated alkane compound such as, e.g., perfluorohexyloctane; and an additive selected from paraffin, propylene glycol diacetate (PGD), a hydroxyalkyl ester of an aliphatic fatty acid, a hydroxyacid alkyl ester, an alkyl ester of a fatty acid, phenethyl alcohol, ethanol, isopropanol, glycerol, propylene glycol, polyethylene glycol, n-butanol, or combinations thereof. Eye drops comprising the compositions are also provided. Methods of using the compositions are also provided and include methods for reducing one or more symptoms of ocular inflammatory conditions, dry eye diseases, or abnormal corneal neovascularization.

The disclosure relates to oral care compositions comprising guanidine in free or orally acceptable salt form, a cationic quaternary ammonium compound (e.g., a pyridinium compound) (e.g., cetyl pyridinium chloride (CPC)), a fluoride source, and optionally a zinc source (e.g., zinc lactate or zinc citrate and zinc oxide) as well as to methods of using and of making these compositions. 20 25 20 43 72 12 J un 2 02 5 2 0 2 5 2 0 4 3 7 2 1 2 J u n 2 0 2 5 A B S T R A C T T h e d i s c l o s u r e r e l a t e s t o o r a l c a r e c o m p o s i t i o n s c o m p r i s i n g g u a n i d i n e i n f r e e o r o r a l l y a c c e p t a b l e s a l t f o r m , a c a t i o n i c q u a t e r n a r y a m m o n i u m c o m p o u n d ( e . g . , a p y r i d i n i u m c o m p o u n d ) ( e . g . , c e t y l p y r i d i n i u m c h l o r i d e ( C P C ) ) , a f l u o r i d e s o u r c e , a n d o p t i o n a l l y a z i n c s o u r c e ( e . g . , z i n c l a c t a t e o r z i n c c i t r a t e a n d z i n c o x i d e ) a s w e l l a s t o m e t h o d s o f u s i n g a n d o f m a k i n g t h e s e c o m p o s i t i o n s . 2 0 2 5 2 0 4 3 7 2 1 2 J u n 2 0 2 5

The invention discloses a continuous hydrogenation rectification preparation method of 4-dimethylamino-2, 2, 6, 6-tetramethylpiperidine, and the preparation method comprises the following steps: premixing: adding triacetonamine and one of solvents (methanol, ethanol, isopropanol and phenethyl alcohol) into a premixing kettle according to a certain mass ratio of 10: (1-5), starting stirring, and transferring a premixed solution to an intermediate temporary storage tank for heat preservation; the method comprises the following steps: loading a certain amount of a catalyst in a fixed bed reactor, purging the fixed bed reactor with nitrogen, metering by a flowmeter, respectively introducing into the fixed bed reactor, transferring a hydrogenation liquid containing 4-dimethylamino-2, 2, 6, 6-tetramethylpiperidine into a rapid removal kettle to remove water, a solvent and part of impurities in the hydrogenation liquid, and carrying out solid-liquid separation to obtain the 4-dimethylamino-2, 2, 6, 6-tetramethylpiperidine. According to the process preparation method, continuous flow reaction purification is carried out, the product is stable in property and higher in yield, the product is continuously pumped into the front rectifying tower to remove light component impurities, and then the material at the bottom of the front rectifying tower is pumped into the rear rectifying tower to remove heavy component impurities.

The invention discloses a preparation method of a copper-mediated multi-active-site catalyst and application of the copper-mediated multi-active-site catalyst in thermal dissolution polymerization of low-rank coal, copper nitrate, cobalt nitrate and cerous nitrate are dissolved in deionized water in proportion, heated and stirred to be uniform, and a sodium hydroxide solution is dropwise added for co-precipitation to obtain turbid liquid; and carrying out low-temperature crystallization, high-temperature hydrothermal treatment, centrifugal washing to be neutral, vacuum drying, grinding into powder, high-temperature calcination, cooling and hydrogen reduction to finally obtain the Cu / CoOx-CeO2 catalyst. The catalyst has the advantages of excellent hydrogenation reduction capacity, high product selectivity, low preparation cost and the like, and low-rank coal depolymerization can be realized in various reaction solvents; for hydrogenation reaction of dimer or monomer model compounds such as 2-phenoxy-1-phenethyl alcohol, not only can catalytic transfer hydrogenolysis of C-O bonds be realized in low-carbon alcohol, but also intramolecular self-hydrogen transfer hydrogenolysis can be realized by utilizing self structural characteristics of a substrate, so that the atom utilization rate is increased.

The invention relates to a mycobacterium hydrolase and application thereof in preparation of flavors and fragrances, and belongs to the fields of enzyme engineering and mining and application of new enzyme resources. The hydrolase comes from mycobacteria, and the amino acid sequence of the hydrolase is shown as SEQ ID No: 2; the hydrolase MdHDL disclosed by the invention has relatively high catalytic activity and substrate concentration tolerance, and can efficiently utilize benzyl alcohol or phenethyl alcohol to react with p-nitrophenyl methyl acetate pNPA, p-nitrophenyl methyl butyrate pNPB or p-nitrophenyl methyl caprylate pNPO to synthesize essence and perfume substances with different flavors; the method is suitable for preparing flower fragrance and fruit fragrance type flavors and fragrances such as jasmine flower fragrance, rose fragrance, pineapple fragrance, banana fragrance and apricot fragrance by an enzyme method, has obvious industrial production potential, and provides technical basis and method guidance for preparing the flower fragrance and fruit fragrance type flavors and fragrances by the enzyme method.

The invention belongs to the technical field of agricultural pest control, and particularly relates to a novel drosophila melanogaster attractant and a preparation method and application thereof. The invention discloses a novel drosophila melanogaster attractant which comprises the following components in percentage by mass: 10%-20% of brown sugar, 1%-5% of acetic acid, 1%-5% of ethanol, 1%-5% of phenethyl alcohol, 0.5%-2.0% of oleic acid, 0.1%-1% of palmitoleic acid, 0.1%-0.5% of sodium benzoate, 0.2%-0.5% of ascorbic acid, 0.2%-0.3% of sodium carboxymethyl cellulose, 0.5%-1.0% of sodium dodecyl benzene sulfonate and the balance of water. Field test results show that the novel drosophila melanogaster attractant is high in trapping rate of drosophila melanogaster on fruit crops, the used raw materials are low in price, the preparation process is simple, the dosage form is a liquid dosage form, field application is facilitated, the novel drosophila melanogaster attractant can be widely applied to prevention and control of field drosophila melanogaster, and the market prospect is good.

The invention belongs to the technical field of electrochemistry, and particularly relates to an electrode applied to preparation of phenylacetic acid by electrochemical oxidation of beta-phenethyl alcohol and a preparation method and application thereof. The electrode comprises a substrate and a plating layer arranged on the surface of the substrate, and the plating layer comprises iron, cobalt and nickel. According to the electrode, beta-phenethyl alcohol can be converted into phenylacetic acid through high-selectivity electrochemical catalysis, the selectivity and the current efficiency of the product phenylacetic acid are both larger than 90%, side reactions such as oxygen evolution can be greatly inhibited in the electrolysis process, the oxygen content is smaller than 5%, and it is guaranteed that the electrolysis reaction is carried out safely.

The utility model relates to a device for refining acetophenone and alpha-phenethyl alcohol, which comprises a first rectifying tower provided with a first inlet, a first outlet, a first discharge port and an extractant inlet; the second rectifying tower is provided with a second inlet, a second outlet and a second discharge port, and the second inlet is communicated with the first discharge port; the third rectifying tower is provided with a third reboiler which is provided with a third inlet, a third outlet and a third discharge port, the third outlet is formed in the top of the third rectifying tower, the third discharge port is formed in the bottom of the third rectifying tower, and the third reboiler of the third rectifying tower is communicated with the second outlet; the material flowing out of the second outlet is condensed by a third reboiler and then is branched into two paths, one path flows back to the upper part of the second rectifying tower, and the other path is communicated with a third inlet; the cooler is provided with a material inlet and a liquid outlet, the material inlet is communicated with the third outlet, and the liquid outlet is used for discharging alpha-phenethyl alcohol. The energy consumption is reduced.

The invention relates to the technical field of non-alcoholic beverages, in particular to a zero-alcohol cocktail beverage with slight alcoholic flavor and a preparation method thereof, the beverage contains the following characteristic flavor compounds: 80-150 mg / L of ethyl hexanoate, 180-250 mg / L of phenethyl alcohol, 180-280 mg / L of isoamyl alcohol, 2.5-4.0 mg / L of beta-damascenone, and the balance of water. The alcohol content of the beverage is less than 0.05 volume percent, and accurate construction of complex flavor levels is realized by taking ethyl hexanoate as a fruit aroma main body, phenethyl alcohol as a wine aroma carrier and beta-damascenone as passion fruit characteristic aroma.

An aqueous skin-compatible antimicrobial solution effective against yeasts and mycobacteria, comprises 2-3.8 wt % of at least one peroxygen; from 1.5 up to 7 wt % of at least one aromatic monohydroxy alcohol selected from phenoxyethanol, phenethyl alcohol, cyclopentylmethanol, cyclohexylmethanol, benzyl alcohol, or any mixture thereof; from 0.5 up to 5 wt % of at least one high foaming amine oxide amphoteric surfactant; from 2 up to 10 wt % of at least one polyol-based skin conditioning agent; an effective amount of at least one pH adjusting agent for adjusting the solution pH to 2-3. The solution has a redox potential value from 220 to 280 mV, is readily biodegradable, and is free of aromatic carboxylic acids, inorganic salts, quaternary ammonium compounds, volatile aliphatic monohydroxy alcohols, other volatile organic compounds, halogen containing compounds, and other antimicrobial agents.

The invention discloses a synthesis method of hydroxytyrosol. The synthesis method comprises the following steps: (1) reacting p-hydroxyphenethyl alcohol as shown in a formula 1 with a bromination reagent in ethyl acetate at 0-25 DEG C to generate p-hydroxybromophenethyl alcohol as shown in a formula 2; (2) under the protection of nitrogen, reacting p-hydroxybromophenethyl alcohol in an aqueous solution of alkali in the presence of a copper catalyst and a ligand at 80-100 DEG C to generate hydroxytyrosol as shown in a formula 3; the copper catalyst is cuprous bromide; the ligand is phenanthroline. The raw materials and solvents required by the synthesis method are cheap and easy to obtain, the operation process is convenient and easy to implement, the synthesis method is environment-friendly, the reactant yield is high, the quality is good, and the synthesis method is suitable for industrial large-scale production.

The invention relates to the field of photocatalytic materials, and discloses triazine-heptazine homojunction carbon nitride as well as a preparation method and application thereof. According to the preparation method, dicyandiamide, potassium chloride and lithium chloride are taken as raw materials, the high-crystallinity triazine-heptazine homojunction carbon nitride is prepared by a one-step method by limiting the heating rate and calcining time in a vacuum environment and controlling the proportion of triazine to heptazine structures, and the high-crystallinity triazine-heptazine homojunction carbon nitride is applied to a photocatalytic depolymerization reaction of lignin, so that the high-crystallinity triazine-heptazine homojunction carbon nitride is obtained. The obvious catalytic activity and selectivity are embodied. The method is simple to operate, mild in reaction condition and easy to synthesize, and has a certain industrial application prospect. The triazine-heptazine homojunction carbon nitride prepared by the method disclosed by the invention has shorter carrier lifetime of 4.03 ns and lower exciton binding energy of 18.1 meV. The obtained triazine-heptazine homojunction carbon nitride is used as a photocatalyst, and in the reaction of depolymerizing a lignin model compound 2-phenoxy-1-phenethyl alcohol, the conversion rate is as high as 98%.

The invention belongs to the field of antifungal agents, and particularly relates to a synergistic mildew-proof composition, application thereof and a method for inhibiting cigar tobacco leaf mildew. The synergistic mildew-proof composition is composed of phenethyl alcohol and isoamyl alcohol, and the volume ratio of phenethyl alcohol to isoamyl alcohol is (10-0.5): 1. After phenethyl alcohol and isoamyl alcohol are compounded, a strong synergistic effect is achieved, and it is guaranteed that a good anti-mildew effect can be achieved under the condition that the dosage is low. The synergistic mildew-proof composition is low in mildew-proof effective concentration and is a natural aroma substance, the potential influence of the mildew-proof process on the original flavor and sensory quality of the cigar tobacco leaves is greatly reduced, and meanwhile, the problem of residues caused by traditional chemical preservatives is also avoided.

The invention discloses ethanol-free perfume based on low-volatility ionic liquid and a preparation method of the ethanol-free perfume, and belongs to the technical field of perfume. The ethanol-free perfume provided by the invention is prepared from the following components in parts by mass: 60 to 70 parts of ionic liquid, 8 to 12 parts of phenethyl alcohol acetoacetate, 12 to 17 parts of vetimol-citric acid mixed anhydride, 3 to 7 parts of microencapsulated limonene, 4 to 6 parts of a humectant and 0.2 to 0.7 part of an antioxidant. The preparation method comprises the following steps: firstly, mixing the ionic liquid, the humectant and the antioxidant to obtain a carrier phase, then adding the phenethyl alcohol acetoacetate and the vetimol-citric acid mixed anhydride into the carrier phase, mixing, finally adding the microencapsulated limonene, mixing to form a suspension system, curing and filtering. According to the perfume provided by the invention, ethanol is replaced by choline-proline ionic liquid, so that the problems of dry skin, irritation and allergy caused by ethanol are avoided, and essence molecules are modified, so that the perfume has the performance of lasting fragrance.

The application belongs to the field of essence and flavor, and particularly relates to a lotus-scented essence and application thereof in cigarettes. The lotus-scented essence comprises the following components in parts by weight: gamma-butyrolactone 1-5 parts, hexanoic acid 1-8 parts, benzyl alcohol 0.1-1.4 parts, phenethyl alcohol 0.1-2.6 parts, benzoic acid 1-5.2 parts, 4-methoxybenzaldehyde 0.1-1.3 parts, dihydroactinidiolide 2-11.5 parts, and leaf alcohol 0.1-0.7 parts. The lotus-scented essence provided by the application is prepared by using food-grade raw materials, and has the style of lotus leaf extract and can be applied to cigarette flavoring and cigarette perfuming. The lotus-scented essence can reduce the use effect of lotus leaf extract in cigarettes, and avoid the quality fluctuation of natural lotus leaf extract caused by unstable factors such as lotus leaf varieties, planting conditions and climate.

The invention belongs to the technical field of agricultural pest control, and particularly relates to a preparation method and application of a Holotrichia diomphalia larva compound luring-insecticidal system. The system is composed of a composite attractant and a clothianidin suspending agent, the composite attractant comprises the following components in percentage by mass: 10% of smell attractant (mixing 2-butenoic acid and 2-phenethyl alcohol according to a ratio of 1: 1), 8% of saccharide and 82% of water, and the clothianidin suspending agent is an effective insecticidal component. According to the compound attractant, two odor attractants, namely 2-butenoic acid and 2-phenethyl alcohol, have a synergistic effect, so that the compound attractant shows a remarkable synergistic effect on larvae of Holotrichia diomphalia, and the attraction activity of the compound attractant is obviously superior to that of a single component. The compound attractant disclosed by the invention effectively attracts larvae to gather in a specific flavor source in a broad-spectrum manner, and has a synergistic effect with a clothianidin suspending agent, so that the insecticidal effect is remarkably improved, the use of chemical pesticides is greatly reduced, the compound attractant is green, pollution-free and residue-free, natural enemies are protected, the environment is protected, and green prevention and control of grubs are realized.

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 application discloses a catalyst for preparing alpha-phenethyl alcohol through acetophenone hydrogenation and a preparation method and application thereof. The method comprises the following steps: (1) respectively preparing solution I comprising a nickel-containing salt, an aluminum-containing salt, an active agent and water and solution II comprising a sodium-containing salt, a silicon-containing salt and water; (2) adding bottom water into a reaction kettle, adjusting pH, and controlling the temperature of the reaction kettle; (3) adding solution I and solution II in parallel, adjusting flow to keep the pH value, and after the parallel flow is completed, reacting under stirring; (4) after the reaction is completed, filtering and beating, and the obtained filter cake is subjected to first drying, crushing, shaping, second drying and calcination to obtain a nickel-based catalyst. The catalyst is suitable for an alpha-phenethyl alcohol reaction generated through selective hydrogenation of acetophenone, can greatly improve the processing load of the catalyst, has high activity, and meanwhile, the selectivity of alpha-phenethyl alcohol is high, and the generation of by-products can be effectively reduced.