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A fragrance composition using β-phenylethyl alcohol and 2-phenylethyl acetate with specific ratios and pyrazines creates a novel floral scent, addressing the need for unique fragrances and environmental sustainability.

JP7721887B2Active Publication Date: 2025-08-13SUMITOMO BAKELITE CO LTD
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Patent Information

Application Number
JP2020195022
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2020-11-25
Publication Date
2025-08-13
Estimated Expiration
2040-11-25

AI Technical Summary

Technical Problem

There is a demand for novel floral fragrances in fragrance compositions to enhance the appeal of various products, and existing fragrances lack a unique floral scent and naturalness.

Method used

A fragrance composition comprising β-phenylethyl alcohol as the first component with a content of 90.0% by mass or more, 2-phenylethyl acetate as the second component with a specific peak area ratio, and optionally 2,3,5,6-tetramethylpyrazine and 2,3,5-trimethylpyrazine as third components, to create a novel floral fragrance.

Benefits of technology

The composition achieves a more palatable and natural floral fragrance, enhancing product appeal with a sense of luxury and security, while reducing environmental impact through biomass-derived components.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a fragrance composition having a novel floral fragrance.SOLUTION: A fragrance composition of the invention contains β-phenylethyl alcohol as the first component with the largest content ratio and 2-phenylethyl acetate as the second component with the second largest content ratio after the first component. In the fragrance composition of the present invention, the ratio of the peak area derived from the second component to the peak area derived from the first component in the chromatogram obtained by gas chromatography-mass spectrometry is preferably 0.1 to 5.0%.SELECTED DRAWING: None
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Description

[Technical Field]

[0001] The present invention relates to a fragrance composition. [Background technology]

[0002] Cyclic compounds with specific structures are used as raw materials for perfumes. Patent Document 1 discloses high-purity β-phenylethyl alcohol, a compound used in fragrances, that has an excellent fragrance. This compound is purified to a purity of 99.9% by weight, and is free of unpleasant odors and has an excellent fragrance suitable for fragrances. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2000-290205 Summary of the Invention [Problem to be solved by the invention]

[0004] As the times change, new fragrances are constantly being sought after for fragrances. Among these, fragrance compositions having a floral fragrance are in high demand, for example, as fragrance components for various products. These fragrance components act on the olfactory sense of consumers who come into contact with the product, and are therefore an element that enhances the product's appeal. From this perspective, there is a demand for the development of fragrance compositions having new floral fragrances.

[0005] An object of the present invention is to provide a fragrance composition having a novel floral scent. [Means for solving the problem]

[0006] Such objectives are as follows: (1) (5) This is achieved by the present invention described in (1) β-phenylethyl alcohol as a first component having the highest content of 90.0% by mass or more; 2-phenylethyl acetate as a second component having the second highest content after the first component; It consists of In a chromatogram obtained by gas chromatography-mass spectrometry, the ratio of the peak area derived from the second component to the peak area derived from the first component is 0.1 to 5.0%. A fragrance composition characterized by:

[0007] (2) The first component and the second component are each a component derived from biomass, The first component and the second component contain impurities derived from biomass. The fragrance composition according to (1) above.

[0008] (3) As a third component having a lower content than the second component, 2,3,5,6-tetramethylpyrazine is used. moreover Contains death, In a chromatogram obtained by gas chromatography-mass spectrometry, the ratio S31 / S2 of the peak area S31 derived from the third component to the peak area S2 derived from the second component is 0.01 to 20.0%. The fragrance composition according to (1) or (2) above. 。

[0009] (4) As a third component having a lower content than the second component, 2,3,5-trimethylpyrazine is used. moreover Contains death, In a chromatogram obtained by gas chromatography-mass spectrometry, the ratio S32 / S2 of the peak area S32 derived from the third component to the peak area S2 derived from the second component is 0.01 to 20.0%. The fragrance composition according to (1) or (2) above. (5) As a third component having a smaller content than the second component, both 2,3,5,6-tetramethylpyrazine and 2,3,5-trimethylpyrazine are used. moreover Contains death, In a chromatogram obtained by gas chromatography-mass spectrometry, the ratio S31 / S32 of the peak area S31 derived from 2,3,5,6-tetramethylpyrazine to the peak area S32 derived from 2,3,5-trimethylpyrazine is 0.1 to 10.0. The fragrance composition according to (1) or (2) above. 。 [Effects of the Invention]

[0010] According to the present invention, a fragrance composition having a novel floral fragrance can be obtained. DETAILED DESCRIPTION OF THE INVENTION

[0011] The fragrance composition of the present invention will be described in detail below based on preferred embodiments. The fragrance composition according to this embodiment contains β-phenylethyl alcohol as the first component having the highest content, and 2-phenylethyl acetate as the second component having the second highest content after the first component, thereby producing a more palatable fragrance based on a floral fragrance, which differs from the fragrance of β-phenylethyl alcohol alone and the fragrance of 2-phenylethyl acetate alone.

[0012] β-Phenylethyl alcohol can be produced by a general organic chemical reaction, and the production method is not limited thereto. Examples of the production method of β-phenylethyl alcohol include a method involving hydrogen reduction of styrene oxide, a method involving the reaction of benzene with ethylene oxide, a method involving hydrogen reduction of phenylacetic acid, and a method involving the oxidation reaction of an aromatic hydrocarbon compound.

[0013] The β-phenylethyl alcohol may also be derived from biomass. Biomass refers to organic resources derived from plants. Specific examples include those converted into and stored in the form of starch, cellulose, etc., the bodies of animals that grow by eating plants, and products made by processing plants or animals. By using biomass-derived β-phenylethyl alcohol, the fragrance composition can contribute to the prevention of global warming. Furthermore, since biomass-derived β-phenylethyl alcohol does not contain impurities derived from fossil resources, it also increases the added value of the fragrance composition in terms of the reduced impact of impurities on living organisms.

[0014] 2-Phenylethyl acetate can be produced by a general organic chemical reaction, and the production method is not limited thereto. For example, 2-phenylethyl acetate can be produced by converting β-phenylethyl alcohol into an acetic acid ester using acetic anhydride.

[0015] Furthermore, 2-phenylethyl acetate may be derived from biomass, which contributes to the prevention of global warming and allows for the realization of a fragrance composition that does not contain impurities derived from fossil resources.

[0016] As described above, β-phenylethyl alcohol is the first component with the highest content (mass fraction) in the fragrance composition, and 2-phenylethyl acetate is the second component with the second highest content (mass fraction) in the fragrance composition.

[0017] That is, the fragrance composition according to this embodiment contains β-phenylethyl alcohol as the first component having the highest content, and 2-phenylethyl acetate as the second component having the second highest content after the first component.

[0018] By containing such a first component and a second component, the fragrance composition according to the present embodiment has a novel floral fragrance that maintains the characteristics of a good floral fragrance while reducing excessive fragrance and imparting a mild and natural feel. For example, when such a fragrance composition is used as a fragrance component in various products, it imparts a sense of luxury, a sense of security, a sense of expectation, a product identification effect, and the like to the product, thereby enhancing the product's appeal.

[0019] The content of the first component is preferably 90.0% by mass or more, more preferably 95.0 to 99.9% by mass, and even more preferably 96.0 to 99.5% by mass, thereby obtaining a fragrance composition with a more palatable fragrance based mainly on the pleasant floral fragrance of the first component.

[0020] The quantitative ratio of β-phenylethyl alcohol to 2-phenylethyl acetate can be determined based on a chromatogram obtained by gas chromatography-mass spectrometry.

[0021] Specifically, in a chromatogram obtained by gas chromatography-mass spectrometry, the ratio of the peak area S2 derived from the second component to the peak area S1 derived from the first component is preferably 0.1 to 5.0%, more preferably 0.5 to 4.0%.

[0022] If the ratio of the peak area S2 to the peak area S1 is within the above range, a new floral fragrance is blended in which the other floral fragrance and honey fragrance of the second component are appropriately added without impairing the floral fragrance of the first component, thereby obtaining a fragrance composition with particularly excellent palatability.

[0023] If the ratio is below the lower limit, the fragrance composition will have a dominant fragrance originating from the first component, and the remarkable effect based on the unconventional floral fragrance may not be fully achieved depending on the usage environment, etc. On the other hand, if the ratio is above the upper limit, the base floral fragrance will be reduced, and the mildness and naturalness, etc., associated with the second component will not be fully imparted, and the remarkable effect based on the unconventional floral fragrance may not be fully achieved depending on the usage environment, etc.

[0024] For gas chromatography mass spectrometry, for example, a headspace solid-phase microextraction method using a gas chromatograph mass spectrometer (Shimadzu Corporation, GC-MS QP2010, GC / MS) is used.

[0025] The above ratio is calculated as peak area S2 / peak area S1 × 100. The peak areas S1 and S2 are measured by the following procedure.

[0026] (Solid Phase Microextraction) First, the sample to be analyzed is placed in a headspace vial. Next, a solid-phase microextraction (SPME) fiber is used to extract aroma compounds from the sample in the vial. Specifically, the solid-phase microextraction fiber is inserted into the headspace (gas phase) of the vial, and the aroma compounds are collected at 60°C for 10 minutes. This solid-phase microextraction fiber is inserted into the injection port of a gas chromatograph mass spectrometer, and the collected aroma compounds are desorbed from the SPME fiber. The solid-phase microextraction fiber is a fiber coated with a two-layer laminate of polydimethylsiloxane (PDMS) and divinylbenzene (DVB).

[0027] (Measurement of the peak area of a substance) The aroma components are analyzed using gas chromatography-mass spectrometry. Based on the obtained chromatogram, the peak area of each substance contained in the aroma components is measured. Among these, the peak area due to β-phenylethyl alcohol is the aforementioned peak area S1, and the peak area due to 2-phenylethyl acetate is the aforementioned peak area S2.

[0028] The gas chromatograph mass spectrometry is carried out under the following analytical conditions. Column: Agilent Technologies DB-WAX (length 30 m, inner diameter 0.25 mm, film thickness 0.25 μm) Oven temperature: 70°C for 5 minutes, then increase the temperature at 5°C / min to 150°C, then increase the temperature to 190°C in 5 minutes. Carrier gas: Helium Carrier gas flow rate: 0.78 mL / min Ionization method: EI mode with ionization voltage of 70 eV Ion source temperature: 200℃ Scan mass-to-charge ratio m / z range: 35-350

[0029] Furthermore, the fragrance composition may contain components other than the first and second components described above, as necessary. Here, a component whose content is smaller than that of the second component is referred to as the third component.

[0030] Examples of the third component include various fragrance components. By adding these fragrance components, the fragrance composition can be further blended. Specifically, various fragrances such as fruity, herbal, woody, spicy, balsamic, green, roasted, nutty, and caramel can be imparted.

[0031] Examples of the third component include various fragrance components such as alcohols, hydrocarbons, phenols, esters, carbonates, aldehydes, ketones, acetals, ethers, carboxylic acids, lactones, nitriles, Schiff bases, pyrazines, pyridines, natural essential oils, and natural extracts. Among these, alcohols, esters, aldehydes, and pyrazines are particularly preferred as the third component. The third component is not limited to a single component, and may be a mixture of multiple components.

[0032] Examples of alcohols include terpene alcohols, aromatic alcohols, and aliphatic alcohols.

[0033] Examples of terpene alcohols include linalool, citronellol, geraniol, nerol, terpineol, α-terpineol, dihydromyrcenol, farnesol, nerolidol, cedrol, menthol, and borneol.

[0034] Examples of aromatic alcohols include benzyl alcohol, dimethylbenzylcarbinol, phenylethyldimethylcarbinol, and phenylhexanol.

[0035] Examples of aliphatic alcohols include ethyl linalool, cis-3-hexenol, and 1-(2,2,6-trimethylcyclohexyl)-3-hexanol.

[0036] Examples of hydrocarbons include limonene, α-pinene, β-pinene, terpinene, cedrene, longifolene, and valencene.

[0037] Examples of phenols include guaiacol, eugenol, isoeugenol, thymol, paracresol, vanillin, and ethyl vanillin.

[0038] Examples of esters include formates, acetates, propionates, butyrates, valerates, hexanoates, heptanoates, nonenoates, benzoates, cinnamates, salicylates, brassylate esters, tiglate esters, jasmonates, glycidates, and anthranilates.

[0039] Examples of acetate esters include hexyl acetate, cis-3-hexenyl acetate, linalyl acetate, citronellyl acetate, geranyl acetate, neryl acetate, terpinyl acetate, nopyr acetate, bornyl acetate, isobornyl acetate, acetyleugenol, acetylisoeugenol, o-tert-butylcyclohexyl acetate, p-tert-butylcyclohexyl acetate, tricyclodecenyl acetate, benzyl acetate, phenylethyl acetate, styrallyl acetate, cinnamyl acetate, dimethylbenzylcarbinyl acetate, phenylethyl phenyl acetate, 3-pentyltetrahydropyran-4-yl acetate, and para-cresyl phenyl acetate.

[0040] Examples of jasmonate esters include methyl jasmonate and methyl dihydrojasmonate.

[0041] Examples of formic acid esters include linalyl formate, citronellyl formate, and geranyl formate.

[0042] Examples of propionate esters include citronellyl propionate, tricyclodecenyl propionate, allyl cyclohexyl propionate, ethyl 2-cyclohexyl propionate, benzyl propionate, and styrallyl propionate.

[0043] Examples of butyric acid esters include citronellyl butyrate, dimethylbenzylcarbinyl n-butyrate, and tricyclodecenyl isobutyrate.

[0044] Examples of valeric acid esters include methyl valerate, ethyl valerate, butyl valerate, amyl valerate, benzyl valerate, and phenylethyl valerate.

[0045] Examples of hexanoic acid esters include methyl hexanoate, ethyl hexanoate, allyl hexanoate, linalyl hexanoate, and citronellyl hexanoate.

[0046] Examples of heptanoic acid esters include methylheptanoate and allylheptanoate.

[0047] Examples of nonenoic acid esters include methyl 2-nonenoate, ethyl 2-nonenoate, and ethyl 3-nonenoate.

[0048] Examples of benzoic acid esters include methyl benzoate, benzyl benzoate, and 3,6-dimethyl benzoate.

[0049] Examples of cinnamic acid esters include methyl cinnamate and benzyl cinnamate.

[0050] Examples of salicylic acid esters include methyl salicylate, n-hexyl salicylate, cis-3-hexenyl salicylate, cyclohexyl salicylate, and benzyl salicylate.

[0051] Examples of brassylic acid esters include ethylene brassylate. Examples of tiglic acid esters include geranyl tiglate, 1-hexyl tiglate, and cis-3-hexenyl tiglate.

[0052] Examples of glycidic acid esters include methyl 2,4-dihydroxyethylmethylphenylglycidate and 4-methylphenylethylglycidate.

[0053] Examples of anthranilic acid esters include methyl anthranilate, ethyl anthranilate, and dimethyl anthranilate.

[0054] Examples of aldehydes include n-octanal, n-nonanal, n-decanal, n-dodecanal, 2-methylundecanal, 10-undecenal, citronellal, citral, hydroxycitronellal, triplal, benzaldehyde, phenylacetaldehyde, phenylpropylaldehyde, cinnamic aldehyde, dimethyltetrahydrobenzaldehyde, 3-(p-tert-butylphenyl)-propyl Examples include propanal, 2-cyclohexylpropanal, p-tert-butyl-α-methylhydrocinnamic aldehyde, p-isopropyl-α-methylhydrocinnamic aldehyde, p-ethyl-α,α-dimethylhydrocinnamic aldehyde, α-amylcinnamic aldehyde, α-hexylcinnamic aldehyde, heliotropin, and α-methyl-3,4-methylenedioxyhydrocinnamic aldehyde.

[0055] Examples of ketones include α-ionone, β-ionone, γ-ionone, α-methylionone, β-methylionone, γ-methylionone, damascenone, methylheptenone, 4-methylene-3,5,6,6-tetramethyl-2-heptanone, acetophenone, amylcyclopentanone, dihydrojasmone, rose ketone, carvone, menthone, camphor, acetyl cedrene, isolongifolanon, nootkatone, benzylacetone, anisylacetone, methyl β-naphthyl ketone, 2,5-dimethyl-4-hydroxy-3(2H)-furanone, maltol, muscone, civetone, cyclopentadecanone, 7-methyl-3,5-dihydro-2H-benzodioxepin-3-one, and raspberry ketone.

[0056] Examples of acetals include acetaldehyde ethyl phenylpropyl acetal, citral diethyl acetal, phenylacetaldehyde glyceryl acetal, and ethyl acetoacetate ethylene glycol acetal.

[0057] Examples of ethers include cedryl methyl ether, estragole, anethole, β-naphthyl methyl ether, β-naphthyl ethyl ether, limonene oxide, rose oxide, nerol oxide, 1,8-cineole, rosefuran, and hexamethylhexahydrocyclopentabenzopyran.

[0058] Examples of carboxylic acids include benzoic acid, phenylacetic acid, cinnamic acid, hydrocinnamic acid, butyric acid, and 2-hexenoic acid.

[0059] Examples of lactones include γ-decalactone, δ-decalactone, γ-valerolactone, γ-nonalactone, γ-undecalactone, δ-hexalactone, γ-jasmolactone, whiskey lactone, coumarin, cyclopentadecanolide, cyclohexadecanolide, ambrettolide, 11-oxahexadecanolide, and butylidenephthalide.

[0060] Examples of nitriles include geranyl nitrile, citronellyl nitrile, and dodecane nitrile. Examples of Schiff bases include aurantiol and ligantral.

[0061] Examples of pyrazines include acetylpyrazine, 2-ethyl-3-methylpyrazine, diethylmethylpyrazine, 5-methyl-(5H)-cyclopenta[b]pyrazine, 2,5-dimethyl-3-ethylpyrazine, 2,6-dimethyl-3-ethylpyrazine, 2,3,5-trimethylpyrazine, 2,3,5,6-tetramethylpyrazine, 2,3-dimethylpyrazine, 2,5-dimethylpyrazine, 2,6-dimethylpyrazine, 2-ethylpyrazine, 2-isobutylpyrazine, 2,5-dimethylpyrazine, and 2,6-dimethylpyrazine. pyrazine, 2-ethyl-3-methylpyrazine, 2-methyl-6-propylpyrazine, 2-isobutyl-3-methylpyrazine, 2,3-dimethyl-5-ethylpyrazine, 2,5-dimethyl-3-ethylpyrazine, 2-methoxy-3-methylpyrazine, 2-ethoxy-3-methoxypyrazine, 2-isopropyl-3-methoxypyrazine, 2-isopropyl-5-methoxypyrazine, 2-isobutyl-3-methoxypyrazine, 2-isobutyl-5-methoxypyrazine, 2-sec-butyl-3-methoxypyrazine, and the like.

[0062] Examples of pyridines include 2-acetylpyridine and 2-acetyl-1,4,5,6-tetrahydropyridine.

[0063] Examples of natural essential oils and natural extracts include orange, lemon, lime, bergamot, vanilla, mandarin, peppermint, spearmint, lavender, chamomile, rosemary, eucalyptus, sage, basil, rose, rock rose, geranium, jasmine, ylang-ylang, anise, clove, ginger, nutmeg, cardamom, cedar, cypress, vetiver, patchouli, lemongrass, and labdanum.

[0064] When the fragrance composition contains a third component, the third component preferably contains 2,3,5,6-tetramethylpyrazine. 2,3,5,6-Tetramethylpyrazine alone has a sweet, burnt-like odor. Therefore, by including 2,3,5,6-tetramethylpyrazine as the third component, it is possible to impart an accentuating odor to the fragrance composition.

[0065] When the fragrance composition contains 2,3,5,6-tetramethylpyrazine, the quantitative ratio of 2-phenylethyl acetate to 2,3,5,6-tetramethylpyrazine can be determined based on a chromatogram obtained by gas chromatography-mass spectrometry.

[0066] Specifically, in a chromatogram obtained by gas chromatography-mass spectrometry, the peak area attributable to 2,3,5,6-tetramethylpyrazine is defined as "peak area S31." In this case, the ratio of peak area S31 to peak area S2 is preferably 0.01 to 20.0%, more preferably 0.10 to 10.0%. This allows for the fragrance to be appropriately accentuated without inhibiting the aroma of the first component or the second component, thereby preventing the fragrance of the fragrance composition from becoming monotonous. As a result, the fragrance composition can be more favorably obtained.

[0067] Furthermore, when the fragrance composition contains a third component, the third component preferably contains 2,3,5-trimethylpyrazine. 2,3,5-Trimethylpyrazine alone has an aroma similar to the roasted aroma of coffee or cocoa. Therefore, by including 2,3,5-trimethylpyrazine in the third component, it is possible to impart an accentuating aroma to the fragrance composition.

[0068] When the fragrance composition contains 2,3,5-trimethylpyrazine, the quantitative ratio of 2-phenylethyl acetate to 2,3,5-trimethylpyrazine can be determined based on a chromatogram obtained by gas chromatography-mass spectrometry.

[0069] Specifically, in a chromatogram obtained by gas chromatography-mass spectrometry, the peak area derived from 2,3,5-trimethylpyrazine is designated as "peak area S32." In this case, the ratio of peak area S32 to peak area S2 is preferably 0.01 to 20.0%, and more preferably 0.10 to 10.0%. This allows for the fragrance to be appropriately accentuated without inhibiting the aroma of the first component or the second component, thereby preventing the fragrance of the fragrance composition from becoming monotonous. As a result, the fragrance composition can be more favorably obtained.

[0070] It is more preferable that the third component contains both 2,3,5,6-tetramethylpyrazine and 2,3,5-trimethylpyrazine, which allows the aforementioned effects of 2,3,5,6-tetramethylpyrazine and 2,3,5-trimethylpyrazine to work synergistically, thereby particularly enhancing the palatability of the fragrance composition.

[0071] When the third component contains both 2,3,5,6-tetramethylpyrazine and 2,3,5-trimethylpyrazine, the ratio of the two is not particularly limited, but is preferably 0.01 to 100.0, more preferably 0.1 to 10.0, and even more preferably 0.2 to 5.0, in terms of the ratio S31 / S32, which allows the aforementioned synergistic effect to be fully exerted.

[0072] The content of the various third components as described above can be adjusted as appropriate depending on the type of third component, the type and strength of the intended fragrance of the fragrance composition, etc., but the total content of the third components is preferably 3.0% by mass or less of the fragrance composition, more preferably about 0.001 to 2.0% by mass, and even more preferably about 0.01 to 1.0% by mass. This allows the preparation of a fragrance composition with higher added value, imparting a different fragrance without inhibiting the effects of the first and second components.

[0073] The fragrance compositions described above are blended into or applied to various types of fragrance products, such as cosmetics and household products.

[0074] Cosmetics and fragrances refer to products used to cleanse or beautify one's appearance. Specific examples of cosmetics include soap, body cleansers, hair cleansers, hair cosmetics, cosmetics, perfumes, colognes, antiperspirants, deodorants, bath additives, etc.

[0075] Household products refer to products that maintain the functionality or cleanliness of various items necessary for home life, such as housing and household products. Specific examples of household products include laundry detergent, laundry softener, laundry starch, household detergent, bath detergent, dish detergent, bleach, mold remover, floor wax, air freshener, and deodorizer.

[0076] The fragrance composition of the present invention has been described above based on the embodiments, but the present invention is not limited to these.

[0077] For example, the fragrance composition of the present invention may be one in which any optional ingredient is added to the above-described embodiment. [Example]

[0078] Next, specific examples of the present invention will be described. 1. Preparation of fragrance composition Example 1 A fragrance composition was prepared by blending β-phenylethyl alcohol as the first component and 2-phenylethyl acetate as the second component. The aforementioned "ratio of peak area S2 to peak area S1," which indicates the blending ratio of the second component, is as shown in Table 1. In the following explanation, the "ratio of peak area S2 to peak area S1" will be abbreviated to "ratio S2 / S1."

[0079] Examples 2 to 7 A fragrance composition was prepared in the same manner as in Example 1, except that the blending ratio was changed so that the ratio S2 / S1 would be the value shown in Table 1.

[0080] (Examples 8 and 9) A fragrance composition was prepared in the same manner as in Example 1, except that 2,3,5,6-tetramethylpyrazine was added. The aforementioned "ratio of peak area S31 to peak area S2," which indicates the blending ratio of 2,3,5,6-tetramethylpyrazine, is as shown in Table 1. In the following description, the "ratio of peak area S31 to peak area S2" will be abbreviated to "ratio S31 / S2."

[0081] (Examples 10 and 11) A fragrance composition was prepared in the same manner as in Example 1, except that 2,3,5-trimethylpyrazine was added. The aforementioned "ratio of peak area S32 to peak area S2," which indicates the blending ratio of 2,3,5-trimethylpyrazine, is as shown in Table 1. In the following description, the "ratio of peak area S32 to peak area S2" will be abbreviated to "ratio S32 / S2."

[0082] (Examples 12 to 14) Except for adding both 2,3,5,6-tetramethylpyrazine and 2,3,5-trimethylpyrazine, a fragrance composition was prepared in the same manner as in Example 1. The ratios S31 / S2 and S32 / S2 are shown in Table 1.

[0083] (Comparative Example 1) A fragrance composition was prepared using only β-phenylethyl alcohol as the first component.

[0084] (Comparative Example 2) The fragrance composition was prepared using only the second component, 2-phenylethyl acetate.

[0085] (Comparative Example 3) A fragrance composition was prepared in which the blending ratio of the second component was set to be greater than that of the first component (the mass fraction of the second component was set to be greater than the mass fraction of the first component).

[0086] 2. Evaluation of fragrance composition First, a fragrance test paper measuring 6 mm in width and 150 mm in length was prepared, and the tip 5 mm of the fragrance test paper was immersed in the fragrance composition obtained in each of the Examples and Comparative Examples.

[0087] Next, a sensory evaluation was conducted by 10 panelists (evaluators) on the scent of the fragrance test paper to which the fragrance composition had been applied. The sensory evaluation was conducted in accordance with the ranking method for sensory evaluation analysis in JIS Z 9080:2004. Specifically, the 10 panelists were asked to evaluate the scent of the fragrance test paper in accordance with the 9-point preference scale specified in JIS Z 9080:2004. The evaluation results are shown in Table 1. Note that on the 9-point preference scale shown in Table 1, 9 represents the most pleasant and 1 represents the most unpleasant.

[0088] [Table 1]

[0089] As shown in Table 1, the fragrance compositions obtained in each Example were found to have higher preference scales than the fragrance compositions obtained in each Comparative Example. This tendency was particularly pronounced when the ratio S2 / S1 was within a specified range. Furthermore, when the ratios S31 / S2 and S32 / S2 were within a specified range, particularly high preference scales were obtained.

Claims

1. β-phenylethyl alcohol as a first component having the highest content of 90.0 mass% or more; 2-phenylethyl acetate as a second component having the second largest content after the first component; It consists of A fragrance composition characterized in that in a chromatogram obtained by gas chromatography-mass spectrometry, the ratio of the peak area derived from the second component to the peak area derived from the first component is 0.1 to 5.0%.

2. The first component and the second component are each components derived from biomass, The fragrance composition according to claim 1 , wherein the first component and the second component contain impurities derived from biomass.

3. The composition further contains 2,3,5,6-tetramethylpyrazine as a third component having a smaller content than the second component, 3. The fragrance composition according to claim 1, wherein in a chromatogram obtained by gas chromatography-mass spectrometry, a ratio S31 / S2 of a peak area S31 attributed to the third component to a peak area S2 attributed to the second component is 0.01 to 20.0%.

4. The composition further contains 2,3,5-trimethylpyrazine as a third component having a smaller content than the second component, 3. The fragrance composition according to claim 1, wherein in a chromatogram obtained by gas chromatography-mass spectrometry, a ratio S32 / S2 of a peak area S32 derived from the third component to a peak area S2 derived from the second component is 0.01 to 20.0%.

5. The composition further contains both 2,3,5,6-tetramethylpyrazine and 2,3,5-trimethylpyrazine as a third component having a smaller content than the second component, 3. The fragrance composition according to claim 1, wherein in a chromatogram obtained by gas chromatography-mass spectrometry, the ratio S31 / S32 of the peak area S31 derived from 2,3,5,6-tetramethylpyrazine to the peak area S32 derived from 2,3,5-trimethylpyrazine is 0.1 to 10.0.

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