71 results about "Guaiacol" patented technology

The invention relates to a composition with functions of protecting gingiva and repairing enamel and a preparation method of the composition, and belongs to the technical field of oral care. The composition contains a functional additive, a plant compound fermentation extract and the like, the functional additive is a mixture of corn starch, calcium phosphosilicate, hydroxyapatite, ubiquinone, sodium guaiazulene sulfonate, menthol and vitamin E, and the plant compound fermentation extract is obtained by fermenting and purifying honeysuckle flowers, radix polygonati officinalis and dandelions according to a specific proportion. Through the synergistic effect of the fermentation extract and the functional components, the problems that an existing toothpaste body is hardened, the storage stability is poor, the gingival protecting effect is short, and the enamel repairing persistence is insufficient are solved, the gingival protecting effect can be enhanced, the enamel repairing effect can be improved, the stability of the toothpaste body can be optimized, the antibacterial property and the oral mucosa relieving effect are achieved, and the oral cavity repairing effect is achieved. And the preparation process is scientific and reasonable, and is suitable for daily oral care.

The invention discloses an eucommia ulmoides wood controllable carbonization-gradient hooping phenol fragrance barrel for white spirit, and belongs to the technical field of wine brewing equipment. In order to solve the problems that a traditional oak barrel is high in cost, an eucommia wood barrel is incomplete in pretreatment, uneven in structural stress and poor in flavor controllability, eucommia wood with the tree age of 18-22 years is adopted as a base material, and pretreatment of segmented steaming, microwave degreasing and gradient drying is conducted; the barrel body is provided with a controllable carbonization modification layer, a 304 stainless steel gradient hoop enhancement layer, a triple-closing sealing layer and a flow guide groove functional layer, and a composite fragrant juice activation process is matched. The barrel can dissolve active ingredients of eucommia ulmoides such as geniposide and aucubin, the leakage rate is smaller than or equal to 0.05%, the content of guaiacol is increased by 42 times compared with a traditional pottery jar, the cost is reduced by 60% compared with an imported oak barrel, and the barrel is suitable for high-quality ageing of Chinese high-degree white spirit.

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 application belongs to the technical field of electronic atomization, and particularly relates to a tobacco extract composition, a preparation method and application thereof. The tobacco extract composition comprises 2,6-dimethylpyrazine, 3-acetylpyridine, dihydroactinidiolide, cembranoid diol, maackiain, furfuryl alcohol and guaiacol. The mass ratio of (2,6-dimethylpyrazine+3-acetylpyridine) to dihydroactinidiolide is greater than 0.02; the dihydroactinidiolide content is greater than or equal to 0.02 mg / g in terms of dry matter mass; and the guaiacol content is 0.004-0.025 mg / g. The overall roasting characteristics are sufficient, and the smoke-like feeling is strong. The preparation method comprises the following steps: first extracting tobacco raw materials to obtain extract A, low-temperature secondary extraction of the extract A to obtain tobacco flavor, high-temperature secondary extraction of the extract A to obtain smoke flavor, and mixing the tobacco flavor and the smoke flavor in a certain proportion to obtain the tobacco extract composition.

This invention relates to a method for producing phenolic compounds by pyrolysis of lignin catalyzed by a double perovskite, comprising: preparation of a MOF precursor; calcination of the MOF precursor prepared in step one to prepare a MOF-based double perovskite AA' with tunable morphology, specific surface area, and pore structure. 1‑x K x B₂O₆, where A is a rare earth metal, A' is an alkaline earth metal, and B is a transition metal, the molar ratio of the metals in MOFs-based double perovskites is A:A':K:B = 1:(1- x ): x :2, where 0.01≤ x ≤0.40; MOFs-based double perovskite catalytic pyrolysis of lignin to produce phenolic compounds, the phenolic compounds in the liquid phase product include phenols, guaiacol, and syringol, with a total selectivity ≥65%; regeneration of double perovskite. This invention utilizes double perovskite catalytic pyrolysis of lignin to produce phenolic compounds, which can convert lignin into high-value-added chemicals.

The invention belongs to the technical field of daily chemicals, and particularly relates to Chinese herbal medicine three-color strip toothpaste and a preparation method thereof. The Chinese herbal medicine three-color strip toothpaste comprises a faint yellow paste body, a green paste body and a blue paste body, the faint yellow paste body comprises, by mass, 0.1%-2% of chitosan quaternary ammonium salt and 0.1%-1% of an ovateleaf holly bark extract, and the green paste body comprises, by mass, 0.002%-0.15% of sodium copper chlorophyllin and 0.1%-1% of the ovateleaf holly bark extract. The blue paste is prepared from the following components in percentage by mass: 0.03 to 0.15 percent of guaiazulene sodium sulfonate and 0.1 to 1 percent of ovateleaf holly bark extract. According to the Chinese herbal medicine three-color-strip toothpaste and the preparation method thereof provided by the invention, the three-color-strip toothpaste is obtained under the condition that exogenous pigments are not added; the toothpaste can achieve the compound effects of freshening breath, inhibiting dental plaque and oral pathogenic bacteria, resisting inflammation, diminishing swelling, resisting allergy, relieving gingivitis and promoting healing and repairing of recurrent oral ulceration, can promote enamel remineralization and pore repairing, and is high in effect synergy, paste stability and use safety.

The application discloses a natural tobacco flavor characteristic spice suitable for low-temperature cigarettes, and has the following weight parts: a smoking agent 40-70, a taste improver 5-20, and a tobacco flavor characteristic spice base 10-30; wherein the tobacco flavor characteristic spice base is composed of extracts of medlar, sea buckthorn and hyssop, and further comprises 2-acetylpyrazine, 2,3-dimethylpyrazine, 2,3,5-trimethylpyrazine, beta-damascenone and guaiacol as main spices, and further comprises a blending agent, a fixative, a flavor enhancer and a diluent; the natural tobacco flavor characteristic spice suitable for low-temperature cigarettes and the preparation method have the following advantages: different natural extracts, such as medlar, sea buckthorn and hyssop, can be used to provide unique tobacco flavors for cigarettes, and can increase the sour and sweet aroma of low-temperature cigarettes, so that the low-temperature cigarettes are more in line with the taste preferences of consumers; other auxiliary spices and chemicals, such as the blending agent, the fixative, the flavor enhancer and the diluent, are added to provide more rich levels and tastes.

The invention discloses dark baked barley rich in wheat fragrance as well as a preparation method and application of the dark baked barley, and belongs to the technical field of wheat making. Comprising the following steps: selecting barley of which the basic amino acid content is more than or equal to 30mg / L and the lignin content is less than or equal to 100mg / g as The barley baking method is characterized in that barley is baked in a sectional manner, and the barley baking method comprises the following steps: in the first stage, the barley is heated to 50-55 DEG C at a constant speed, and the water content of the barley is 12-15%; in the second stage, the temperature is rapidly increased to 90 DEG C, and the water content of the barley is reduced to 8-10%; in the third stage, the baking temperature continues to be increased to 210-220 DEG C, and baking is conducted for 20-30 min; in the fourth stage, when the crispness of the baked barley reaches 98% or above, the baking temperature is lowered to 190-210 DEG C, and then the baked barley is rapidly cooled to the room temperature. The preparation method is applied to the aspect of drinks, and solves the problems that although the color of the baked barley obtained by the existing dark-color baked barley preparation process meets the requirement, the barley fragrance cannot be highlighted due to the low pyrazine content, the smoky flavor is large due to the high guaiacol content, and the technical requirement that pure and rich barley fragrance can be obtained by extracting a small amount of the baked barley cannot be met.

The present application belongs to the technical field of electronic atomization, and particularly relates to a tobacco extract composition, a preparation method and application thereof. The tobacco extract composition comprises methylcyclopentenolone, guaiacol, neophytadiene, cedrene diol, dihydroactinidiolide, maltol, furaneol, palmitic acid, 6-ethyl-5,6-dihydro-2H-pyran-2-one and scopoletin; the range of (methylcyclopentenolone+guaiacol) / neophytadiene is 0.01-2.5 by mass; the guaiacol content is 0.003-0.02 mg / g by dry matter mass; the tobacco roasting aroma is richer, the tobacco roasting sweet note is more obvious, and the tobacco-like feeling is better. The preparation method comprises: extracting tobacco raw materials twice at medium and low temperatures to obtain tobacco flavor substances, extracting the tobacco raw materials at high temperature to obtain smoke flavor substances, and mixing the tobacco flavor substances and the smoke flavor substances at a certain ratio to obtain the tobacco extract composition.

The present disclosure relates to methods, compositions, and kits for determining whether a liquid contains a guaiacol-producing bacterium. In embodiments, a method comprises the steps of (a) mixing a media that changes color with a change in pH with a volume of a liquid that is potentially contaminated with one or more guaiacol-producing bacteria to create a sample, (b) placing the sample in a sterile container, (c) incubating the sample in the sterile container at about 30°C to about 60°C, (d) determining whether the sample has undergone a color change, an odor change, and / or a change in clarity following step (c), and (e) determining whether the liquid contains a guaiacol-producing bacteria based upon the determination in step (d). In embodiments, the liquid that is potentially contaminated with one or more guaiacol-producing bacteria is an acidic fruit juice. In embodiments, the guaiacol-producing bacteria are guaiacol-positive thermophilic acidophilic bacteria.

The application relates to a method for preparing natural gas by taking biomass and polyhydroxy compounds as raw materials. The method comprises the following steps: mixing the raw materials with water and a catalyst, and carrying out a reduction reaction in a reducing atmosphere to obtain a product containing natural gas; the raw materials are selected from biomass raw materials or / and polyhydroxy compounds; the biomass raw materials are selected from at least one of beech sawdust, poplar sawdust, pine sawdust, birch sawdust, wheat straw or corn straw; the polyhydroxy compounds are selected from at least one of cellulose, hemicellulose, cellobiose, xylose, guaiacol, sorbitol, isosorbide, glycerol, erythritol, xylitol or glucose; the catalyst comprises a carrier and an active component loaded on the surface of the carrier; the active component is selected from metal elements; the metal elements are selected from at least one of the single elements of ruthenium, rhodium, platinum, palladium or iridium. The method provides a path for converting biomass such as sawdust and polyhydroxy compounds to prepare natural gas, and has important industrial application prospects.

The invention provides oak chips for ageing high-quality beer as well as a preparation method and application of the oak chips. Every 100 g of the oak sheet is prepared from the following components by mass: 1600 to 15000 mg of vanillin, 750 to 1600 mg of whisky lactone, 4500 to 22500 mg of furfural, 25 to 80 mg of guaiacol, and 55 to 70 mg of eugenol. The preparation method of the oak chips for aging beer comprises the steps of baking treatment and ultraviolet photolysis treatment of raw oak chips, the temperature of the baking treatment is 150-240 DEG C, and the optical power density of the ultraviolet photolysis treatment is 0.6-0.8 W / m < 2 >. The oak chips disclosed by the invention are high in content of phenols and lactones, and high-quality beer which is excellent in balance degree and harmony of various fragrances can be obtained in a short time.

This invention belongs to the field of atomization technology, specifically relating to a coffee extract, an atomizing matrix, and an electronic atomization device. The coffee extract provided by this invention, by mass fraction, comprises 350-450 parts furfuryl alcohol, 5-10 parts furfuryl formate, 2-5 parts 2-acetylfuran, 5-10 parts 5-methylfurfural, 20-30 parts furfuryl acetate, 10-20 parts guaiacol, 30-40 parts maltol, 5-15 parts 4-ethylguaiacol, 5-15 parts difurfuryl ether, and 10-20 parts 4-vinylguaiacol. The coffee extract provided by this invention has a low caffeine content but a strong characteristic coffee aroma; when applied to an atomizing matrix, it can enhance the taste and inhalation experience of the aerosol.

The present application provides a kind of marine bacteria capable of degrading lignin and removing nitrite, which is a deep-sea seabed sulfide source, and has the function of degrading lignin and removing nitrite.The strain of Halomonas sp.has a preservation number of CGMCC No.34690.The strain screened in the present application can grow and reproduce in seawater, can utilize guaiacol as a carbon source, and can remove nitrite.The strain of the present application has laccase activity, has laccase gene and nitrite reductase gene.The experimental results show that the cumulative removal rate of guaiacol after 2 days of culture is 56%, and the removal rate of nitrite after 4 days of culture is close to 70%, which has great application potential in the marine aquaculture industry.

The invention discloses a supported CuMo bimetallic Ti-based catalyst, a preparation method and application in oriented conversion of lignin into phenol. According to the invention, rod-like titanium dioxide is used as a carrier, bimetallic is loaded through an equivalent-volume impregnation method, high-temperature hydrogen reduction is adopted, rich surface defects and oxygen vacancies are introduced to the surface of the carrier, and a metal active center is anchored to the surface of the carrier under the strong interaction of the rich surface defects and the metal carrier, so that the catalyst is prepared. A bimetallic active site can be formed between the catalyst and the catalyst, so that the catalytic activity and high-temperature stability of the catalyst are improved, the catalyst has high conversion rate, high selectivity and high stability when being subsequently applied to a reaction for preparing phenol from propyl guaiacol, the phenol selectivity is kept at 80% or above, and meanwhile, the catalytic conversion rate can reach 95% or above.

The application discloses a Pediococcus acidilactici for improving color and flavor of low-salt solid-state soy sauce and belongs to the technical field of bioengineering. The application obtains a Pediococcus acidilactici WT1 which can grow well under higher temperature and certain salinity by being separated and screened from soy sauce mash. The P.acidilactici WT1 is strengthened to carry out low-salt solid-state soy sauce fermentation, so that the amino acid nitrogen of the soy sauce is increased by 9.43%, the contents of succinic acid and tartaric acid in the soy sauce are respectively increased by 71.87% and 5.43 times, the contents of umami and sweet amino acids are respectively increased by 35.16% and 13.44%, the total amount of volatile flavor substances is increased by 19.95%, and the color rate is increased by 21.36%. By strengthening the P.acidilactici WT1, the contents of main flavor substances, i.e., guaiacol and phenol in the soy sauce are respectively increased by 35.49% and 50.64%, and the contents of benzyl alcohol and isoamyl alcohol are respectively increased by 16.83% and 21.86%. Therefore, strengthening the P.acidilactici WT1 in the low-salt solid-state soy sauce fermentation process has important significance for improving the quality and flavor of the low-salt solid-state soy sauce.

A tobacco extract composition, a preparation method therefor, and a use thereof, relating to the technical field of electronic atomization. The tobacco extract composition comprises methyl cyclopentenolone, guaiacol, neophytadiene, a cembratriene-diol, dihydroactinidiolide, maltol, furanone, palmitic acid, 6-ethyl-5,6-dihydro-2H-pyran-2-one, and scopoletin. By weight: (methyl cyclopentenolone + guaiacol) / neophytadiene ranges from 0.01 to 2.5. By dry weight: the guaiacol content is 0.003 to 0.02 mg / g. Said tobacco has a rich roasted aroma, a pronounced sweet roasted flavor, and a more tobacco-like feel. The preparation method comprises: performing extraction on tobacco raw material twice at medium and low temperatures, and obtaining tobacco flavor compounds; performing extraction on the tobacco raw material at a high temperature, and obtaining smoke flavor compounds; and mixing the tobacco flavor compounds and the smoke flavor compounds in a certain ratio to obtain a tobacco extract composition.

The application discloses a preparation method of high-quality bran raw materials, comprising the following steps: 1) washing, drying, powdering, sterilizing and reserving wheat bran; 2) adding edible fungus seed liquid into the wheat bran and uniformly mixing and fermenting to prepare high-quality bran raw materials. The application also discloses the high-quality bran raw materials obtained by the preparation method and application thereof. After fermentation, the water absorption index, water-solubility index and swelling degree of the bran are significantly increased, wherein the water-solubility index is increased by 277% at most, the total phenol content is 5.91 times of that of the unfermented sample at most, the alkyl resorcinol content is 1.55 times of that of the unfermented sample at most, and the total antioxidant capacity of the raw material is improved to 311.23 U / g, which is 5.73 times of that of the unfermented sample. Meanwhile, the fermented raw material generates alcohol aroma substance 4-ethyl guaiacol, which further improves the quality of the raw material.

The present application relates to a kind of N-adamantyl benz [1,3] oxazin-2-ketone derivatives and its preparation method and application in antibacterial, belong to organic synthesis and application technical field.N-adamantyl benz [1,3] oxazin-2-ketone derivatives have as shown in structure general formula (I).Preparation method includes: with adamantylamine reduction Schiff base of guaiacol as raw material, with dichloromethane as reaction solvent, CDI is added, under reflux condition, the oxazinone product corresponding to the reduction Schiff base is prepared.Extract the reaction liquid with deionized water until the pH of organic phase is 7, dry, rotary evaporation, obtain target product.The present application applies N-adamantyl benz [1,3] oxazin-2-ketone derivatives to biological antibacterial, it is shown that staphylococcus aureus, escherichia coli, pseudomonas aeruginosa all have certain inhibitory effect.

The invention discloses a formula and a production process of herbal plant extraction nourishing essence gel, and relates to the technical field of cosmetics. According to the formula, water, glycerin and butanediol are used as basic carriers, various plant extracts such as peony flowers, guaiacol and myrothamnus flabellifolia are compounded, the sum of the mass percent of all the components is 100%, and all the components are in a reasonable range. The production process adopts a segmented temperature-control stirring method, and comprises the following steps: firstly heating and dissolving the basic moisturizing component, then adding the plant active component, mixing and cooling, and finally inspecting, packaging and warehousing. Through the synergistic effect of various plant active ingredients, the traditional Chinese medicine composition not only can regulate qi and blood and relieve liver depression and qi stagnation, but also effectively assists and nourishes meridians and collaterals of the whole body, supplements yin blood of the whole body and enables qi and blood to softly run along with qi, is good in product stability, high in safety and controllable in cost, is suitable for daily nursing of qi and blood deficiency type skin, and has a wide application prospect.

This invention discloses a polypropylene composition and its applications, belonging to the field of polymer composition technology. The invention provides a polypropylene composition comprising polypropylene, a hindered phenolic antioxidant, a phosphite antioxidant, guaiacol, gallic acid, a dispersant, a light stabilizer, and a metal ion passivator. By incorporating the above components, the polypropylene polymer provided by this invention can synergistically enhance the anti-phenolic yellowing effect of the hindered phenol-phosphite composite antioxidant, resulting in a polypropylene composition that possesses both good anti-phenolic yellowing effect and good dyeing adsorption rate.

1. The name of the design product: medicine packaging box (compound guaiacolsulfonic acid and tripelennamine syrup). 2. The use of the design product: medicine packaging box. 3. The design points of the design product: in the pattern. 4. The picture or photo that best indicates the design points: front view.

The application provides a catalyst for preparing phenol by catalytic hydrogenation of guaiacol and a preparation method and application thereof. The preparation method of the catalyst comprises the following steps: fully dissolving magnesium nitrate, P123 and urea in deionized water, carrying out hydrothermal reaction, and then carrying out filtration, washing, drying and calcination to obtain an MgO carrier; immersing the MgO carrier in an aqueous solution of an alkali metal nitrate, carrying out drying and calcination to obtain an MgO carrier loaded with an alkali metal element; the alkali metal is selected from one of Li, Na, K and Cs; immersing the MgO carrier loaded with the alkali metal element in a methanol solution of chloroplatinic acid, removing the methanol, drying, and then carrying out reduction treatment to obtain the catalyst. The catalyst is applied to catalyze the hydrogenation deoxygenation of guaiacol and exhibits excellent catalytic performance. The hydrogenation deoxygenation reaction condition is mild, and the target product phenol can be obtained with high selectivity and high yield.

The invention relates to a preparation method and application of a fragrance-carrying paper-based material. The preparation method comprises the following steps: carrying out epoxidation modification on papermaking plant pulp; mixing the epoxidized modified plant pulp with a phenolic flavor substance and a catalyst, and carrying out thermal reaction to obtain phenolic flavor substance grafted plant pulp; the phenolic flavor substance is selected from any one or a combination of at least two of eugenol, guaiacol or maltol; and papermaking by taking the phenolic flavor substance grafted plant pulp as a raw material. According to the method provided by the invention, a specific fragrant substance is firmly connected to a cellulose skeleton through a covalent bond, so that long-acting slow release of fragrance can be realized, and the physical properties and combustion characteristics of the paper-based material can be improved.

The invention discloses a method for developing Chinese rose essence based on an electronic nose and application of the Chinese rose essence in cigarettes. The method comprises the following steps: preparing Chinese rose essential oil; performing GC-MS analysis: mixing the Chinese rose essential oil with an internal standard substance 5-methyl guaiacol, performing GC-MS analysis, and determining aroma components and contents in the mixture; performing aroma activity value determination and compounding: performing preliminary compounding on the basis of aroma components and the content of each component to obtain an initial essence formula; optimizing an essence formula by adopting an electronic nose: respectively detecting and contrastively analyzing the Chinese rose essential oil and the initial essence by adopting the electronic nose comprising a sensor array, and adjusting a compounding ratio according to an analysis result to obtain the final Chinese rose essence; and cigarette flavoring evaluation: carrying out sensory evaluation, and verifying aroma consistency in combination with electronic nose data. The cost of the Chinese rose essence is effectively reduced, the cost of the Chinese rose essence is 40-60% of that of natural Chinese rose essential oil, and the economical efficiency is remarkably improved; the sensory evaluation difference between the compound essence and the natural essential oil is not obvious (pgt); 0.05), the fragrance is close to nature, and the problem of distortion of artificially synthesized essence is solved.

The invention discloses rosin modified biomass phenolic resin and a preparation method thereof. The preparation method comprises the following steps: firstly, rectifying and extracting a guaiacol-rich fraction from wood tar; and then the fraction partially replaces phenol and is mixed with rosin and a basic catalyst, a copolycondensation reaction is carried out by adopting a step-by-step formaldehyde adding and segmented temperature control process, and finally, the target resin is obtained through decompression dehydration. Wherein the molar substitution rate of the guaiacol fraction to phenol is 10%-50%, and the using amount of rosin is 5%-30% of the total phenol mass. The preparation method disclosed by the invention is simple in process, phenol dependence and cost are reduced by utilizing a renewable resource, namely the wood tar, and the influence of phenol on human bodies in a traditional resin production process is avoided; a remarkable synergistic effect and an unexpected technical effect are generated in toughness, strength and thermal stability, and products prepared by applying the flame retardant to the fields of wood adhesives, molding compounds and the like have excellent performance.

The invention discloses a dispersion composition suitable for lyocell fiber production, a spinning solution and a functional fiber, and belongs to the technical field of lyocell fibers. The dispersing composition comprises NMMO, water and a dispersing agent, and the dispersing agent is a lignosulfonate substance and has a group structure obtained by substituting and modifying guaiacol-based lignin with amide, sulfonic acid and salt thereof. According to the embodiment of the invention, the modified lignosulfonate conforming to specification characteristics of specific components, groups and the like is applied to the NMMO system as the dispersing agent for the first time, so that the technical bottlenecks that the conventional dispersing agent is chemically incompatible, difficult to remove and non-uniform in dispersion in the NMMO system can be solved, and an excellent synergistic effect is obtained.

A tobacco extract composition, a preparation method therefor, and a use thereof, relating to the technical field of electronic atomization. The tobacco extract composition comprises dihydroactinidiolide, geranyllinalool, maltol, neophytadiene, megastigmatrienone, a cembratriene-diol, guaiacol, and furanone. By weight: dihydroactinidiolide / (geranyllinalool+ maltol)≥0.1. By dry weight: the geranyllinalool content ≥0.01 mg / g; and the maltol content is 0.005–0.05 mg / g. The disclosed extract has a tobacco-like feel, with a strong sweet and natural taste, and provides a pleasant tobacco-like experience. The preparation method therefor comprises: extracting twice at a low temperature to obtain tobacco flavor compounds, extracting twice at a high temperature to obtain smoke flavor compounds, and mixing the tobacco flavor compounds and the smoke flavor compounds in a certain ratio to obtain a tobacco extract composition.

The invention discloses a method for preparing aspergillus tubingensis mouldy bran by utilizing agilawood and application of the aspergillus tubingensis mouldy bran in Baijiu brewing, and belongs to the technical field of Baijiu production. Aspergillus tubingensis and bran are jointly fermented to prepare the distiller's yeast, compared with aspergillus mouldy bran without agilawood, the total content of flavor substances is increased by 116.80%, the content of ester compounds is 12244.82 micrograms / g, the content of 4-vinyl guaiacol reaches 4805.29 + / -970.18 mg / L, the content of ethyl palmitate reaches 2874.95 + / -207.95 mg / L, the flavor of the distiller's yeast of the Baijiu is increased, and the industrial application value is increased.

We offer a corn tea beverage that reduces the scratchy feeling in the throat. [Solution] In a corn tea beverage, guaiacol and dimethyl sulfide at a concentration of 300 ppb or more are added, and the ratio of dimethyl sulfide content to guaiacol content (by mass) is set to 10 or more.