Solid composition with floral scent

Abstract

The object of the present invention is to provide a solid composition, characterized in that when added to a medium such as water, it brings a floral scent. The solid composition of the present invention contains linalool, geraniol and 2-methylbutyraldehyde, and the weight ratio of the content of 2-methylbutyraldehyde to the total content of linalool and geraniol is adjusted to 0.015 to 0.215.

Description

Technical Field

[0001] The present invention relates to solid compositions, and more particularly to solid compositions imparting floral fragrance. Background Art

[0002] Tea beverages made from processed tea leaves are widely consumed not only in Japan but also around the world. Tea beverages are sold as sterilized, packed in containers such as PET bottles or cans, or sold as dried and powdered powders that are dissolved in water or hot water for drinking. Powdered tea that is drunk with water or hot water is roughly divided into two forms: instant tea made by drying tea leaf extracts, and powdered tea made by directly crushing tea leaves.

[0003] As instant tea, technologies for improving the flavor of tea have been disclosed so far, such as instant tea obtained by multiple extraction operations from the same tea raw material in the manufacture of tea extract (Patent Document 1), or instant tea using a mixed solution containing ethanol and water in a specific ratio to purify green tea extract to reduce the amount of caffeine (Patent Document 2), etc. In addition, for the purpose of suppressing the deterioration of flavor over time, instant tea using monosaccharides or disaccharides such as glucose or maltose is also disclosed (Patent Document 3). Regarding powdered tea, for the purpose of improving dispersibility or solubility relative to water, for example, powdered tea obtained by dispersing a ground tea in a plant extract and then spray-drying the dispersion (Patent Document 4), or powdered tea mainly composed of ground tea leaves obtained by grinding and micronizing in an aqueous solution (Patent Document 5), etc.

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2013-226111

[0006] Patent Document 2: Japanese Patent Application Publication No. 2009-72188

[0007] Patent Document 3: Japanese Patent Application Publication No. 2013-153739

[0008] Patent Document 4: Japanese Patent Application Publication No. 2010-233559

[0009] Patent Document 5: Japanese Patent Application Publication No. 2007-289115 Summary of the invention

[0010] The characteristic aroma of so-called high-grade green tea in tea beverages is called floral aroma. Various types of tea solid compositions have been developed and sold, but a tea solid composition having an excellent aroma specialized as floral aroma is unknown. Therefore, an object of the present invention is to provide a solid composition characterized in that it has a floral aroma when added to a medium such as water.

[0011] In order to solve the above problems, the inventors conducted in-depth research and found that linalool and geraniol were previously considered to have the greatest influence on the flower-like aroma in tea, but it was found that by combining 2-methylbutanal with them, a higher-grade tea-like excellent floral aroma would be produced. In addition, the inventors found that by adjusting the ratio of the content of 2-methylbutanal to the total content of linalool and geraniol to a specific range, a further excellent floral aroma would be presented. Based on these insights, the inventors completed the present invention.

[0012] The present invention is not limited thereto but relates to the following.

[0013] (1) A solid composition comprising linalool, geraniol and 2-methylbutanal, wherein the weight ratio of the 2-methylbutanal content to the total content of linalool and geraniol is 0.015 to 0.215.

[0014] (2) The composition according to (1), which is a powder composition.

[0015] (3) The composition according to (1) or (2), characterized in that it contains two or more types of dextrins.

[0016] (4) The composition according to (3), characterized in that it contains linear dextrin and cyclodextrin.

[0017] (5) The composition according to any one of (1) to (4), characterized in that it further contains one or more aromatic components selected from α-ionone, β-cyclocitral, (z)-3-hexenol, 1-penten-3-ol, nerolidol, hexanal, (E)-linalool oxide, β-myrcene, trans-β-ocimene, L-α-terpineol, methyl salicylate, benzyl alcohol and indole.

[0018] (6) The composition according to any one of (1) to (5), characterized in that it contains a tea leaf extract.

[0019] (7) The composition according to any one of (1) to (6), wherein the tea leaf extract is a sencha tea leaf extract.

[0020] (8) A food or beverage comprising the composition according to any one of (1) to (7).

[0021] (9) The food or beverage according to (8), which is a beverage.

[0022] (10) The food or beverage according to (9), which is a tea beverage.

[0023] According to the present invention, a solid composition can be provided, characterized in that when added to a medium such as water, a floral aroma is imparted. The solid composition of the present invention can be made into a tea beverage with water or hot water, and when the tea beverage is consumed, a floral aroma similar to that of high-grade tea can be imparted. Since the solid composition of the present invention is very light compared to a tea beverage, it is extremely convenient to transport.

[0024] In addition, the solid composition of the present invention can also be used as a raw material for food. In recent years, the number or types of tea-flavored foods have tended to increase. The solid composition of the present invention can be used to impart excellent floral aroma to desserts such as cakes, Castella, candies, biscuits, jellies, puddings, chocolates, etc. DETAILED DESCRIPTION

[0025] The solid composition of the present invention is described below. In addition, unless otherwise specified, "ppm", "ppb" and "weight %" used in this specification mean ppm, ppb and weight % of weight / weight (w / w), respectively.

[0026] One embodiment of the present invention is a solid composition, characterized in that it contains linalool, geraniol and 2-methylbutanal, and the weight ratio of the 2-methylbutanal content to the total content of linalool and geraniol is 0.015 to 0.215. By adopting this structure, the solid composition can present an excellent floral fragrance. Here, in this specification, "floral fragrance" refers to the fragrance obtained by adding a sweet rose-like fragrance to a refreshing fragrance like lily of the valley.

[0027] (Tea Leaf Extract)

[0028] The solid composition of the present invention may contain a tea extract. Here, in this specification, the so-called "tea extract" refers to a component extracted from tea leaves. In the present invention, tea leaves can be used from plants of the genus Camellia of the Theaceae family (Camellia sinensis (L) O. Kuntze, etc.). The tea leaves used in the present invention can be classified into non-fermented tea, semi-fermented tea, and fermented tea due to the processing method. As non-fermented tea, for example, green teas such as wild tea, sencha, gyokuro, Gaicha (Kabuse tea), tencha, bancha, roasted tea, pot-fried tea, stem tea, stick tea, and bud tea can be listed. As semi-fermented tea, for example, oolong teas such as Tieguanyin, color species, Huang Jingui, and Wuyi rock tea can be listed. As fermented tea, for example, black teas such as Darjeeling, Assam, and Sri Lanka can be listed. The tea leaves in the present invention can be used alone or in combination with multiple types of tea leaves. In addition, as tea leaves, the aroma components are not particularly limited as long as they are extractable parts, and leaves, stems, etc. can be used appropriately, and the form is not limited to large leaves, powder, etc. In the present invention, although not particularly limited, it is preferred to use a green tea leaf extract, and more preferably a sencha tea leaf extract.

[0029] The content of the tea extract in the solid composition of the present invention is not particularly limited, and is, for example, 30 to 90% by weight, preferably 35 to 80% by weight, and more preferably 40 to 70% by weight. When the content of the tea extract is within the above range, the aroma from the tea leaves can be fully felt.

[0030] (linalool, geraniol and 2-methylbutyraldehyde)

[0031] The solid composition of the present invention contains linalool, geraniol and 2-methylbutyraldehyde. 10 H 18 A type of monoterpene alcohol represented by geraniol, which has a scent similar to lily of the valley, lavender, and bergamot. 10 H 17 A type of straight-chain monoterpene compound represented by OH, contained in essential oils such as rose oil, palm oil, and citronella oil, and has a rose-like fragrance. 10 One of the non-cyclic aliphatic aldehydes represented by O, which exists naturally in fruits and the like, and is also a component contained in roasted or heated peanuts and the like, and exhibits a burnt odor.

[0032] In the solid composition of the present invention, the weight ratio of the 2-methylbutyraldehyde content to the total content of linalool and geraniol (2-methylbutyraldehyde / (linalool and geraniol)) is 0.015 to 0.215. When 2-methylbutyraldehyde is present in combination with linalool and geraniol at this weight ratio, an excellent floral fragrance can be exerted.

[0033] The weight ratio of the 2-methylbutyraldehyde content in the solid composition of the present invention to the total content of linalool and geraniol is preferably 0.02 or more, 0.025 or more, 0.03 or more, 0.035 or more, 0.04 or more, 0.045 or more, or 0.05 or more. In addition, the weight ratio of the 2-methylbutyraldehyde content in the solid composition of the present invention to the total content of linalool and geraniol is preferably 0.21 or less, 0.20 or less, 0.19 or less, 0.18 or less, 0.17 or less, 0.16 or less, 0.15 or less, 0.14 or less, or 0.13 or less. Typically, the weight ratio of the 2-methylbutyraldehyde content in the solid composition of the present invention to the total content of linalool and geraniol is preferably 0.025 to 0.2, more preferably 0.03 to 0.19, and further preferably 0.045 to 0.14.

[0034] The content of linalool in the solid composition of the present invention is not particularly limited, for example, it is 0.001ppm or more, preferably 0.002ppm or more, 0.005ppm or more, 0.01ppm or more, 0.02ppm or more, 0.05ppm or more, 0.1ppm or more, 1ppm or more or 10ppm or more. By the content of linalool within the above range, an excellent floral fragrance can be exerted. The upper limit of the content of linalool in the solid composition is not particularly limited. For example, the content is 10000ppm or less, preferably 5000ppm or less, 4000ppm or less, 3000ppm or less, 2000ppm or less, 1000ppm or less, 500ppm or less, 200ppm or less or 100ppm or less. The content of linalool in the solid composition of the present invention is typically 0.001-10000ppm, preferably 0.1-5000ppm, more preferably 1-2000ppm, and further preferably 10ppm-1000ppm.

[0035] In addition, the content of geraniol in the solid composition of the present invention is not particularly limited, for example, it is 0.01ppm or more, preferably 0.02ppm or more, 0.05ppm or more, 0.1ppm or more, 0.2ppm or more, 0.5ppm or more or 1ppm or more. By having the content of geraniol within the above range, the solid composition of the present invention can exert a more excellent floral fragrance. The upper limit of the content of geraniol in the solid composition is not particularly limited. For example, the content is 10000ppm or less, preferably 5000ppm or less, 2000ppm or less, 1000ppm or less, 500ppm or less, 200ppm or less, 100ppm or less or 50ppm or less. The content of geraniol in the solid composition of the present invention is typically 0.01 to 10000ppm, preferably 0.1 to 2000ppm, more preferably 0.5 to 1000ppm, and further preferably 1 to 500ppm.

[0036] The content ratio of linalool to geraniol in the solid composition of the present invention is not particularly limited. The content ratio of linalool to geraniol (linalool: geraniol) is, as a weight ratio, for example, 1:50 to 50:1, preferably 1:10 to 20:1, more preferably 1:5 to 10:1, and further preferably 1:1 to 5:1.

[0037] The total content of linalool and geraniol in the solid composition of the present invention is not particularly limited, for example, 0.1ppm or more, preferably 0.2ppm or more, 0.3ppm or more, 0.5ppm or more, 1ppm or more, 5ppm or more or 10ppm or more. The upper limit of the total content of linalool and geraniol in the solid composition is not particularly limited. For example, the content is 10000ppm or less, preferably 5000ppm or less, 3000ppm or less, 2000ppm or less, 1000ppm or less, 500ppm or less or 200ppm or less. The total content of linalool and geraniol in the solid composition of the present invention is typically 0.1 to 10000ppm, preferably 1 to 1000ppm, more preferably 5 to 500ppm, and further preferably 10 to 200ppm.

[0038] In addition, the content of 2-methylbutanal in the solid composition of the present invention is not particularly limited, for example, it is 0.01ppm or more, preferably 0.02ppm or more, 0.05ppm or more, 0.1ppm or more, 0.2ppm or more, 0.5ppm or more or 1ppm or more. By coexisting with linalool and geraniol in a content within the above range of 2-methylbutanal, the solid composition of the present invention can exert a more excellent floral fragrance. The upper limit of the content of 2-methylbutanal in the solid composition is not particularly limited. For example, the content is 1000ppm or less, preferably 500ppm or less, 200ppm or less, 100ppm or less, 50ppm or less, 20ppm or less or 10ppm or less. The content of 2-methylbutanal in the solid composition of the present invention is typically 0.01 to 1000ppm, preferably 0.2 to 50ppm, more preferably 0.5 to 20ppm, and further preferably 1ppm to 10ppm.

[0039] (2,4-heptadienal)

[0040] The solid composition of the present invention may further contain 2,4-heptadienal. It is known that 2,4-heptadienal is a compound having a molecular formula of C7H 10 A type of terpenoid aldehyde represented by O, which has a liver odor or a fish odor.

[0041] The content of 2,4-heptadienal in the solid composition of the present invention is not particularly limited, for example, more than 0.00001ppm, preferably more than 0.00002ppm, more than 0.00003ppm, more than 0.00004ppm, more than 0.00005ppm, more than 0.00006ppm, more than 0.00007ppm, more than 0.00008ppm, more than 0.00009ppm or more than 0.0001ppm. By 2,4-heptadienal coexists with the above-mentioned aromatic components in the above-mentioned range, the solid composition of the present invention can exert a more excellent floral fragrance. The upper limit of the content of 2,4-heptadienal in the solid composition is not particularly limited. For example, the content is less than 20ppm, preferably less than 10ppm, less than 5ppm, less than 2ppm, less than 1ppm, less than 0.5ppm or less than 0.2ppm. The content of 2,4-heptadienal in the solid composition of the present invention is typically 0 to 20 ppm, preferably 0 to 1 ppm, more preferably 0 to 0.5 ppm, and even more preferably 0 to 0.2 ppm.

[0042] In the present invention, the contents of linalool, geraniol, 2-methylbutyraldehyde and 2,4-heptadienal in the solid composition can be measured using gas chromatography (GC). In addition, as the analysis device, a fast gas phase electronic nose HERACLES II (Alpha MOS Japan) can be cited. Specifically, a solution obtained by dissolving the solid composition of the present invention in water is prepared, and the contents of various aromatic components can be measured using the solution under the following conditions.

[0043] Gas chromatography device: Rapid gas chromatography electronic nose HERACLES II

[0044] Column 1: MXT-5 (slightly polar 10m, 180μm ID, 0.4μm)

[0045] Column 2: MXT-WAX (high polarity 10m, 180μm ID, 0.4μm)

[0046] Carrier gas flow rate: Hydrogen 1.6mL / min

[0047] Flame ionization detector (FID) temperature: 260°C

[0048] Injector temperature: 200℃

[0049] Box temperature: 40℃(5 seconds)~1.5℃ / second~250℃(90 seconds)

[0050] Injection time: 125 seconds

[0051] Capture temperature: adsorption 50℃, detachment 240℃

[0052] Capture time: adsorption 130 seconds, preheating 35 seconds

[0053] The conditions related to the sample for measurement can be set as shown in the examples described below. After the content of the aroma component in the solution is measured, the content of the aroma component in the solid composition can be calculated by reverse calculation from the amount of the solid composition dissolved in water.

[0054] In the present invention, when the aromatic components such as linalool or geraniol are glycosides, unless otherwise specified, the amount of the aromatic component refers to the amount of the aromatic component itself such as linalool and geraniol itself except for the sugar portion removed. The removal of glycosides (sugar portion) can be implemented by using an appropriate sugar hydrolase.

[0055] (dextrin)

[0056] The solid composition of the present invention may contain dextrin. Dextrin is a general term for carbohydrates obtained by hydrolysis of starch or glycogen. In the present invention, dextrin can be used as an excipient for forming a solid composition. The type of dextrin used in the solid composition of the present invention is not particularly limited, and can be set to more than one, more than two, more than three or more than four, preferably more than two, more preferably more than three.

[0057] The content of dextrin in the solid composition of the present invention is not particularly limited, and the total content of dextrin is, for example, 10 to 70% by weight, preferably 20 to 65% by weight, and more preferably 30 to 60% by weight. The dextrin in the present invention can be a commercially available product. The content of dextrin in the solid composition can be measured by performing sugar analysis using a method known to those skilled in the art.

[0058] There is no particular limitation on the dextrin used in the present invention, and examples thereof include linear dextrin, cyclodextrin, and helical dextrin. Here, the so-called "linear dextrin" in this specification refers to dextrin in which glucose is bonded to a linear or branched chain and does not form a ring structure or a helical structure. In addition, the so-called "cyclodextrin" in this specification refers to dextrin in which glucose is bonded to form a ring structure and does not form a helical structure. In addition, the so-called "helical dextrin" in this specification refers to dextrin in which glucose is bonded to form a helical structure. The solid composition of the present invention preferably contains linear dextrin and cyclodextrin.

[0059] There is no particular limitation on the linear dextrin, and for example, a linear dextrin with a DE (dextrose equivalent) of 1 to 25, or a linear dextrin with a weight average molecular weight of 500 to 160,000, etc. can be used. In addition, in the present invention, not only one type of linear dextrin can be used, but also two or more types can be used in combination. A preferred embodiment of the present invention uses two types of linear dextrins. When two types of linear dextrins are used, for example, a combination of a linear dextrin with DE2 to 5 and a linear dextrin with DE16 to 20, or a combination of a linear dextrin with a weight average molecular weight of 90,000 to 140,000 and a linear dextrin with a weight average molecular weight of 600 to 1,200 can be used.

[0060] When linear dextrin is used, the content of linear dextrin in the solid composition of the present invention is, for example, 0 to 65% by weight, preferably 10 to 60% by weight, and more preferably 15 to 55% by weight. When linear dextrin of DE2 to 5 and linear dextrin of DE16 to 20 are used as two types of linear dextrin, the content of linear dextrin of DE2 to 5 in the solid composition of the present invention is, for example, 0 to 60% by weight, preferably 5 to 50% by weight, and more preferably 10 to 45% by weight, and the content of linear dextrin of DE16 to 20 is, for example, 0 to 60% by weight, preferably 5 to 50% by weight, and more preferably 10 to 45% by weight. In addition, the content ratio (weight ratio) of linear dextrin of DE2 to 5 and linear dextrin of DE16 to 20 is, for example, 4:0.5 to 0.5:5, preferably 3:1 to 1:5, and more preferably 2:1 to 1:4.

[0061] When a linear dextrin having a weight average molecular weight of 90,000 to 140,000 and a linear dextrin having a weight average molecular weight of 600 to 1,200 are used as two types of linear dextrins, the content of the linear dextrin having a weight average molecular weight of 90,000 to 140,000 in the solid composition of the present invention is, for example, 0 to 65% by weight, preferably 10 to 60% by weight, and more preferably 15 to 55% by weight, and the content of the linear dextrin having a weight average molecular weight of 600 to 1,200 is, for example, 5 to 60% by weight, preferably 5 to 50% by weight, and more preferably 10 to 45% by weight. In addition, the content ratio (weight ratio) of the linear dextrin having a weight average molecular weight of 90,000 to 140,000 and the linear dextrin having a weight average molecular weight of 600 to 1,200 is, for example, 5:1 to 1:3, preferably 3:1 to 1:2, and more preferably 2:1 to 1:1.

[0062] As cyclodextrin, for example, cyclodextrin can be used. In the present invention, any one of α-cyclodextrin, β-cyclodextrin and γ-cyclodextrin can be used, and α-cyclodextrin is preferably used. The weight average molecular weight of the cyclodextrin used in the present invention is not particularly limited, and is, for example, 700 to 1,300, preferably 800 to 1,200, and more preferably 900 to 1,100. When cyclodextrin is used, the content of cyclodextrin in the solid composition of the present invention is, for example, 0.5 to 15% by weight, preferably 1 to 12% by weight, and more preferably 3 to 10% by weight.

[0063] When linear dextrin and cyclodextrin are used, the content ratio (weight ratio) of linear dextrin and cyclodextrin is, for example, 20:1 to 2:1, preferably 15:1 to 3:1, and more preferably 12:1 to 5:1.

[0064] The solid composition of the present invention may also contain spiral dextrin. The DE of the spiral dextrin used in the present invention is not particularly limited, for example, it is less than 7, preferably less than 6, and more preferably less than 5. As the spiral dextrin, for example, cluster dextrin (Ezaki Glico) can be used. When spiral dextrin is used, the content of spiral dextrin in the solid composition of the present invention is, for example, 0 to 45% by weight, preferably 5 to 30% by weight, and more preferably 10 to 20% by weight. In addition, when spiral dextrin is used, the content ratio (weight ratio) of linear dextrin and spiral dextrin is, for example, 1:3 to 3:1, preferably 1:2 to 2:1, and more preferably 1:1.5 to 1.5:1.

[0065] (Other aromatic ingredients)

[0066] The solid composition of the present invention may further contain one or more aroma components selected from the group consisting of α-ionone, β-cyclocitral, (z)-3-hexenol, 1-penten-3-ol, nerolidol, hexanal, (E)-linalool oxide, β-myrcene, trans-β-ocimene, L-α-terpineol, methyl salicylate, benzyl alcohol and indole in addition to the above-mentioned linalool, geraniol, 2-methylbutanal and 2,4-heptadienal. By making the solid composition of the present invention contain these aroma components, a further excellent floral fragrance can be presented.

[0067] The content of (z)-3-hexenol in the solid composition of the present invention is, for example, 0.1 to 50 ppm, preferably 0.5 to 20 ppm, and more preferably 1 to 10 ppm. The content of 1-penten-3-ol in the solid composition of the present invention is, for example, 0.1 to 50 ppm, preferably 0.5 to 20 ppm, and more preferably 1 to 10 ppm. The content of nerolidol in the solid composition of the present invention is, for example, 0.01 to 20 ppm, preferably 0.05 to 10 ppm, and more preferably 0.1 to 5 ppm. The content of hexanal in the solid composition of the present invention is, for example, 0.01 to 20 ppm, preferably 0.05 to 10 ppm, and more preferably 0.1 to 5 ppm. The content of (E)-linalool oxide in the solid composition of the present invention is, for example, 0.1 to 1000 ppm, preferably 1 to 100 ppm, and more preferably 5 to 50 ppm. The content of benzyl alcohol in the solid composition of the present invention is, for example, 0.1 to 100 ppm, preferably 0.5 to 10 ppm, and more preferably 1 to 5 ppm. The content of β-myrcene in the solid composition of the present invention is, for example, 0.01 to 1000 ppm. The content of trans-β-ocimene in the solid composition of the present invention is, for example, 0.01 to 1000 ppm. The content of L-α-terpineol in the solid composition of the present invention is, for example, 0.01 to 1000 ppm. The content of methyl salicylate in the solid composition of the present invention is, for example, 0.01 to 1000 ppm. The content of indole in the solid composition of the present invention is, for example, 0.01 to 1000 ppm.

[0068] In the present invention, the contents of α-ionone, β-cyclocitral, (z)-3-hexenol, 1-penten-3-ol, nerolidol, hexanal, (E)-linalool oxide, β-myrcene, trans-β-ocimene, L-α-terpineol, methyl salicylate, benzyl alcohol and indole in the solid composition can be measured using gas chromatography mass spectrometry (GC / MS). Specifically, the contents of various aromatic components can be measured under the following conditions.

[0069] Apparatus: GC: Agilent Technologies GC7890B

[0070] MS: Agilent Technologies 5977A

[0071] HS:Gestel MPS

[0072] Tube:Tenax TA,Carbon bx1000

[0073] Column: HP-INNOWAX 60m x 0.25mmi.d.df=0.25μm

[0074] Temperature conditions: 40℃(4 minutes)~5℃ / minute~260℃

[0075] Carrier gas flow rate: He 1.5ml / min

[0076] Injection method: splitless

[0077] Ion source temperature: 260°C

[0078] The conditions related to the measurement sample can be set as shown in the examples described below.

[0079] (Extract containing linalool, geraniol and 2-methylbutyraldehyde)

[0080] In the solid composition of the present invention, linalool, geraniol and 2-methylbutanal can be used as refined products or crude refined products, respectively, or extracts containing linalool, geraniol and 2-methylbutanal can also be used. As extracts containing linalool, geraniol and 2-methylbutanal, extracts from nature can be used, and any of plant extracts and animal extracts can be used. In the present invention, plant extracts are preferably used, and tea extracts are more preferably used in plants. Here, although there is no particular restriction, the tea extract containing linalool, geraniol and 2-methylbutanal is preferably a tea extract of a different type from the above-mentioned tea extract. That is, when the above-mentioned tea extract is used as the first tea extract, the tea extract containing linalool, geraniol and 2-methylbutanal can be used as a second tea extract different from it. In addition, the second tea extract may further contain 2,4-heptadienal. In addition, in the present invention, linalool, geraniol and 2-methylbutanal may also come from the first tea extract. In the present invention, the contents of linalool, geraniol and 2-methylbutanal, regardless of their sources, refer to the amounts contained in the solid composition of the present invention.

[0081] In the tea extract containing linalool, geraniol and 2-methylbutanal, non-fermented tea is preferably used as the raw tea, and specifically, green tea such as wild tea, sencha, gyokuro, gaicha, jingcha, ganyin, nianguo, niangcha, bancha, and hojicha can be exemplified. The tea extract containing linalool, geraniol and 2-methylbutanal can be a substance extracted from only one kind of tea, or a substance obtained by mixing and extracting a plurality of teas. In the present invention, the tea extract containing linalool, geraniol and 2-methylbutanal is preferably a tea extract of green tea, and more preferably an extract obtained from the stems of jingcha, ganyin, nianguo, etc. By using the stems of jingcha, ganyin, nianguo, etc., aromatic components other than linalool, geraniol and 2-methylbutanal can be contained therein, and a more excellent fragrance of high-grade tea can be given to the solid composition.

[0082] When the tea extract containing linalool, geraniol and 2-methylbutanal is used, the content thereof is not particularly limited and can be adjusted so that the content of the tea extract containing linalool, geraniol and 2-methylbutanal in the solid composition of the present invention reaches the above-mentioned range.

[0083] (Other additives)

[0084] In addition to the various ingredients shown above, the solid composition of the present invention may be added with additives commonly used in food and beverages, such as antioxidants, preservatives, pH adjusters, sweeteners, nutritional enhancers, thickening stabilizers, emulsifiers, dietary fiber, quality stabilizers, etc., within the range that does not impair the effects of the present invention.

[0085] (Solid composition)

[0086] The solid composition of the present invention is not particularly limited, and is preferably in powder form, i.e., a powder composition. In the present invention, the powder composition can be made into a powder form, including particles. In the present invention, the particle size of the powder composition is not particularly limited, for example, 0.1 to 500 μm, preferably 1 to 300 μm, and more preferably 10 to 200 μm.

[0087] The solid composition of the present invention can be contained in food and drink (beverages and foods). That is, in the present invention, food and drink containing the above-mentioned solid composition can be provided. The solid composition of the present invention is preferably contained in a liquid to make a beverage, and it is most preferably dissolved in water or hot water and drunk as a tea beverage. Thus, the solid composition of the present invention can be provided as instant tea. Here, the so-called "instant tea" in this specification refers to a powdered beverage that is dried using a solution of a tea extract as a raw material and processed into a powdered state. Tea beverages include non-fermented tea (green tea, etc.), semi-fermented tea (oolong tea, etc.), and fermented tea (black tea, etc.). Specifically, steamed non-fermented tea (green tea) such as sencha, bancha, hojicha, gyokuro, gaicha, and sweet tea can be listed; non-fermented teas such as urreshino tea, aoyagi tea, and various Chinese teas such as pot-fried tea; semi-fermented teas such as pouchong tea, tieguanyin tea, and oolong tea; black tea, Awabancha, Pu'er tea, and other fermented teas. Tea beverages using the solid composition of the present invention are preferably green tea. That is, the solid composition of the present invention can be provided as instant green tea.

[0088] When the solid composition of the present invention is added to a liquid such as water or hot water, the content thereof in the solution is not particularly limited, and is, for example, 0.01 to 20% by weight, preferably 0.05 to 10% by weight, and more preferably 0.1 to 5.0% by weight. In addition, the content of the solid composition in the solution is preferably adjusted as follows: the content of linalool in the solution is, for example, 1 to 1000 ppb (w / w), preferably 3 to 500 ppb (w / w), more preferably 5 to 300 ppb (w / w), and further preferably 10 to 200 ppb (w / w); or the content of geraniol in the solution is 1 to 800 ppb (w / w), preferably 3 to 400 ppb (w / w), more preferably 5 to 200 ppb (w / w), and further preferably 10 to 100 ppb (w / w); or the content of 2-methylbutanal in the solution is 0.1 to 500 ppb (w / w), preferably 0.3 to 300 ppb (w / w), more preferably 0.3 to 100 ppb (w / w), and further preferably 1 to 50 ppb (w / w).

[0089] In addition, the content of the solid composition in the solution can be adjusted so that the total content of linalool and geraniol in the solution reaches 1 to 1000 ppb (w / w), preferably 5 to 800 ppb (w / w), more preferably 10 to 600 ppb (w / w), and further preferably 20 to 400 ppb (w / w). When the solid composition contains 2,4-heptadienal, the content of the solid composition in the solution can be adjusted so that the content of 2,4-heptadienal in the solution reaches 0.001 to 100 ppb (w / w), preferably 0.01 to 50 ppb (w / w), more preferably 0.05 to 30 ppb (w / w), and further preferably 0.1 to 20 ppb (w / w).

[0090] The solid composition of the present invention can also be added to food. Such food, for example, can be Japanese desserts or Western desserts. Desserts include cakes, Castella, candies, biscuits, jellies, puddings, chocolates, etc., ice creams include ice cream, popsicles, sorbets, etc., and snacks can also be used in bread or dairy products. When the solid composition of the present invention is added to food, the amount added can be appropriately set according to the type of food.

[0091] When the solid composition of the present invention is added to food, the amount of addition can be appropriately set according to the type of food, etc. The solid composition of the present invention can be added to food in a manner such that its content in the food reaches 0.01 to 20% by weight, preferably 0.05 to 10% by weight, and more preferably 0.1 to 5% by weight.

[0092] In addition, the amount of the solid composition of the present invention added to the food can also be set with the content of the above-mentioned aromatic components as an index. For example, the solid composition of the present invention can be added to the food in such a way that the content of linalool in the food reaches 1 to 1000 ppb (w / w), preferably 3 to 500 ppb (w / w), more preferably 5 to 300 ppb (w / w), and further preferably 10 to 200 ppb (w / w). For example, the solid composition of the present invention can be added to the food in such a way that the content of geraniol in the food reaches 1 to 800 ppb (w / w), preferably 3 to 400 ppb (w / w), more preferably 5 to 200 ppb (w / w), and further preferably 10 to 100 ppb (w / w). For example, the solid composition of the present invention can be added to food in such a manner that the content of 2-methylbutanal in the food reaches 0.1 to 500 ppb (w / w), preferably 0.3 to 300 ppb (w / w), more preferably 0.3 to 100 ppb (w / w), and further preferably 1 to 50 ppb (w / w).

[0093] In addition, the solid composition of the present invention can be added to food in a manner such that the total content of linalool and geraniol in the food reaches 1 to 1000 ppb (w / w), preferably 5 to 800 ppb (w / w), more preferably 10 to 600 ppb (w / w), and further preferably 20 to 400 ppb (w / w). When the solid composition contains 2,4-heptadienal, the solid composition of the present invention can be added to food in a manner such that the content of 2,4-heptadienal in the food reaches 0.001 to 100 ppb (w / w), preferably 0.01 to 50 ppb (w / w), more preferably 0.05 to 30 ppb (w / w), and further preferably 0.1 to 20 ppb (w / w).

[0094] (Manufacturing method)

[0095] The solid composition of the present invention can be prepared by (A) a process of preparing a solution containing tea extract, linalool, geraniol and 2-methylbutyraldehyde, and the weight ratio of 2-methylbutyraldehyde content to the total content of linalool and geraniol is 0.015 to 0.215, and (B) a process of drying the resulting solution. In addition to tea extract, linalool, geraniol and 2-methylbutyraldehyde, the solution may also contain the above-mentioned various components such as dextrin. The amount of any component can be appropriately set without damaging the effect of the present invention, and the order of allocating various components is not particularly limited. In addition, as the solvent of the solution, water can be used, or the extract of tea leaves can be directly used.

[0096] The drying of the solution can be carried out by methods known to those skilled in the art. For example, methods such as spray drying, freeze drying, hot air drying, vacuum drying, etc. can be cited, and spray drying is preferably used in the present invention. In addition, conditions such as the temperature or time of spray drying are also not particularly limited and can be appropriately adjusted.

[0097] In the manufacture of the solid composition of the present invention, in addition to the above steps, a step of concentrating the solution obtained in step (A) or a step of sterilizing the solution obtained in step (A) may be included. Any step may be implemented using a method known to those skilled in the art.

[0098] In addition, regarding the linalool, geraniol and 2-methylbutanal in step (A), the tea extract (second tea extract) containing these three components can also be used. The second tea extract may further contain 2,4-heptadienal. The solution in the above step (A) can be prepared by mixing the first tea extract and the second tea extract. Although there are no special restrictions, the tea extract (second tea extract) containing linalool, geraniol and 2-methylbutanal can be manufactured by a process of distilling tea leaves. The tea leaves used as raw materials in the second tea extract are as described above. In the present invention, the stems of stem tea, yanyin, and nianggu can be preferably used as raw materials.

[0099] As a method for distilling tea leaves for obtaining a tea leaf extract (second tea leaf extract) containing linalool, geraniol and 2-methylbutanal, steam distillation is typically used. Steam distillation is a method of introducing water vapor into a raw material (tea leaves) and cooling and condensing the aroma components distilled out along with the water vapor. The steam distillation method can be carried out by normal pressure steam distillation, reduced pressure steam distillation, gas-liquid multi-stage countercurrent contact distillation (metal spinning conical column), etc. In the present invention, it is preferred to use normal pressure steam distillation. In addition, in the steam distillation of tea leaves, boiling steam distillation is typically implemented. The so-called boiling steam distillation is a method of heating the raw material (tea leaves) while immersing it in water, recovering the generated water vapor and cooling it to obtain a distillate.

[0100] Regarding the tea extract (second tea extract) containing linalool, geraniol and 2-methylbutyraldehyde, the various aromatic components can be highly concentrated by further concentrating the extract obtained by steam distillation. As the concentration method, distillation concentration is typically implemented. In distillation concentration, for example, the tea extract can be put into a still, and it can be boiled from the bottom by heating, and the steam and aroma components are recovered at the same time. In the distillation concentration method, either atmospheric distillation concentration or reduced pressure distillation concentration can be used. In the present invention, it is preferred to use a reduced pressure distillation concentration method. In addition, when implementing distillation concentration, an operation called salting out can also be implemented. By implementing a salting out treatment, the polarity of the salt can introduce water molecules into the distillate put into the still, promoting the volatilization of organic compounds. The salting out treatment can be implemented by making the distillate to be concentrated contain salts such as sodium chloride.

[0101] Furthermore, the tea extract containing linalool, geraniol and 2-methylbutyraldehyde (second tea extract) can also be produced by a process of performing an activated carbon treatment. By performing an activated carbon treatment, the amount of unnecessary aromatic components can be reduced. Here, in this specification, "activated carbon" refers to a porous substance with carbon as the main component, which is produced by an activation reaction of a carbon material such as wood at a high temperature.

[0102] (Method for enhancing floral aroma in food and beverages)

[0103] The solid composition of the present invention obtained as mentioned above can be added to food and beverages, and can improve the fragrance of the floral aroma in the food and beverages.Thereby, the present invention, as other modes, can be a method for improving the floral aroma in the food and beverages, characterized in that, comprising adding the solid composition obtained by the above-mentioned operation to the operation in the food and beverages.

[0104] Example

[0105] The present invention will be described below based on examples, but the present invention is not limited to these examples.

[0106] 1. Preparation of solid composition (powder composition)

[0107] (1-1) Tea Extract

[0108] Into a tea extraction tank, 30 kg of commercially available tencha stems (tencha bones), 4 kg of spiral dextrin (Ezaki Glico, cluster dextrin, weight average molecular weight: 400,000, DE: less than 5), 0.9 kg of L-ascorbic acid and 0.54 kg of baking soda were added, and 300 L of hot water was further added, and the mixture was kept at 50°C for 120 minutes to prepare a tea extract. 196 L of the obtained tea extract was added with 1.78 kg of linear dextrin (Pine Oligo (Matsuya Chemical Industry), weight average molecular weight: 710) and mixed, and then the insoluble components (tea leaves) were removed by centrifugation, and sterilization was performed at 90°C and 30 seconds. Then, membrane concentration (NTR-759HG-S4F (Nitto Denko), liquid temperature: 20°C, pressure: 3 MPa) was performed to concentrate the tea extract so that the Brix value reached 20 to 35 as the solid content concentration in the solution.

[0109] (1-2) Tea distillate

[0110] In addition to the above process, a distillate from tea leaves is prepared. Specifically, 15 kg of commercially available stem tea leaves are weighed, mixed with 100 kg of water and kept at 50°C for 2 hours to perform a heat treatment on the tea leaves. Next, the treated solution is put into a steam distillation kettle in a state containing tea leaves, and a boiling steam distillation is performed under the conditions of a steam pressure of 0.25 MPa, a steam flow rate of 20 kg / hr, and a steam temperature of 100°C (normal pressure). The cooling refrigerant temperature is set to 4°C inlet and 6°C outlet, and condensation is performed at a refrigerant flow rate of 30 L / min to recover the distillate. The recovery time of the distillate is set to 30 minutes from the start of distillation, and the amount of distillate recovered is 8 kg. This operation is performed 10 times to obtain a total of 80 kg of distillate (tea aroma composition).

[0111] 8 g of wood-derived powdered activated carbon (Osaka Gas Chemical, Egret WP-Z) with an average pore diameter of 3 nm was added to 80 kg of the obtained distillate, and the mixture was stirred for 10 minutes with a stirrer to perform activated carbon treatment. The activated carbon in the distillate was removed with filter paper (ADVANTEC, No. 2). In addition, the treatment temperature during the activated carbon treatment was set to 6°C.

[0112] Furthermore, 80 kg of the activated carbon treatment was divided into two portions, 40 kg each, and the distillation kettle system was depressurized to -0.09 MPa using a vacuum pump. The distillation kettle was heated at a steam flow rate of 5 to 15 kg / hr and a steam pressure of 0.25 MPa, so that the liquid temperature of the distillate rose to 40 to 50°C. The cooling refrigerant temperature was set to 4°C inlet and 6°C outlet, and condensation was carried out at a refrigerant flow rate of 31 L / min to recover the distillate. The recovery time of the distillate was set to 15 minutes from the start of distillation, and the total amount of distillate recovered was 4 kg (20 times concentrated). The distillate obtained in this way was used as tea distillate.

[0113] (1-3) Powder composition

[0114] To 20 L of the tea extract obtained in (1-1) above, 1780 mL of the tea distillate obtained in (1-2) above was added and mixed. Next, the mixed solution was sterilized at 90° C. and 45 seconds. The sterilized solution was spray dried using a spray dryer to prepare a powder composition. In addition, as for the drying conditions, the inlet hot air temperature was set to 160° C., and the outlet hot air temperature was set to 110° C.

[0115] (1-4) Evaluation of powder composition

[0116] When the powder composition obtained by the above method is dissolved in water, an excellent floral aroma can be felt. When the powder composition is analyzed for aromatic components, linalool, geraniol, 2-methylbutanal, nerolidol, hexanal, 1-penten-3-ol, (z)-3-hexenol, etc. are detected. Among various aromatic components, the presence of linalool, geraniol and 2-methylbutanal is focused on, and the concentrations of these components in the powder composition are measured as shown below.

[0117] <Calibration curve>

[0118] A standard stock solution (ethanol solvent) was prepared so that the concentration of the target aroma component reached 1000 ppm, and each standard stock solution was prepared with pure water to 0.004, 0.02, 0.05, 0.1, 0.2, and 0.5 ppm. 10 mL of each prepared solution was placed in a 20 mL vial with 3 g of sodium chloride added to serve as a calibration curve sample.

[0119] <Preparation of analysis samples>

[0120] The tea aroma composition was appropriately diluted with pure water so as to reach the concentration range of the calibration curve, and 10 mL of the resulting solution and 3 g of sodium chloride were placed in a 20 mL vial to prepare an analysis sample.

[0121] <Component Analysis>

[0122] The concentrations of various aroma components were measured using a gas chromatography analyzer (Alpha MOS Japan Rapid Gas Phase Electronic Nose HERACLES II).

[0123] (Sampling parameters)

[0124] Incubation: 60°C, 15 minutes

[0125] Syringe: Temperature: 70°C, post-injection cleaning: 90 seconds

[0126] Headspace injection: 5000 μl at 250 μl / sec

[0127] (Device parameters)

[0128] Column 1: MXT-5 (slightly polar 10m, 180μm ID, 0.4μm)

[0129] Column 2: MXT-WAX (high polarity 10m, 180μm ID, 0.4μm)

[0130] Carrier gas flow rate: Hydrogen 1.6mL / min

[0131] Flame ionization detector (FID) temperature: 260°C

[0132] Injector temperature: 200℃

[0133] Box temperature: 40℃(5 seconds)~1.5℃ / second~250℃(90 seconds)

[0134] Injection time: 125 seconds

[0135] Capture temperature: adsorption 50℃, detachment 240℃

[0136] Capture time: adsorption 130 seconds, preheating 35 seconds

[0137] As a result of the above measurement, the concentrations of linalool, geraniol and 2-methylbutyraldehyde were 260 ppb, 73 ppb and 50 ppb, respectively. In addition, as a raw material of the tea extract, commercially available sencha was used to prepare a powder composition in the same manner as above, and when evaluated, an excellent aroma was also felt as a floral aroma, and the concentrations of linalool, geraniol and 2-methylbutyraldehyde in the powder composition were 1853 ppb, 814 ppb and 102 ppb, respectively (powder composition B).

[0138] In addition, the concentrations of other aroma components were measured under the following conditions.

[0139] <Ingredient Analysis>

[0140] The analysis samples prepared in the same manner as above were introduced into a gas chromatograph mass spectrometer (Agilent) by MVM (MultiVolatile Method) using MPS manufactured by GERSTEL, and the concentrations of various aroma components were measured.

[0141] Apparatus: GC: Agilent Technologies GC7890B

[0142] MS: Agilent Technologies 5977A

[0143] HS:Gestel MPS

[0144] Tube:Tenax TA,Carbon bx1000

[0145] Column: HP-INNOWAX 60m x 0.25mmi.d.df=0.25μm

[0146] Temperature conditions: 40℃(4 minutes)~5℃ / minute~260℃

[0147] Carrier gas flow rate: He 1.5ml / min

[0148] Injection method: splitless

[0149] Ion source temperature: 260°C

[0150] As a result of the above measurement, nerolidol was 2.3 ppb, hexanal was 6.2 ppb, 1-penten-3-ol was 29.6 ppb, and (z)-3-hexenol was 9.5 ppb. In the powder composition B, nerolidol was 16.2 ppb, hexanal was 1.9 ppb, 1-penten-3-ol was 45.7 ppb, and (z)-3-hexenol was 43.5 ppb.

[0151] 2. Study on the proportion of aromatic components

[0152] Based on the above measurement results, linalool, geraniol and 2-methylbutanal were focused, and the presence and content of 2-methylbutanal were studied in particular. First, as a preliminary experiment, a substance obtained by diluting the tea distillate prepared according to the above (1-2) with water and a substance obtained by adding various aromatic component standards to water in a manner to achieve the concentration in the dilution were compared, and it was confirmed that there was almost no difference in the perceived floral fragrance between the two. In addition, when the linalool standard and the geraniol standard were added to water while changing the concentration ratio to investigate the aroma, there was not much difference in the aroma perceived at any concentration ratio, and it was confirmed that at least when the concentration ratio of linalool to geraniol (linalool: geraniol) was in the range of 1:10 to 20:1, there was almost no difference in the aroma.

[0153] On the basis of the above-mentioned prior confirmation, first obtain powdered tea as a matrix. Specifically, 12 kg of commercially available sencha (Yutaka Midori) was added to a tank for tea extraction, 120 kg of hot water was added, and the mixture was kept at 40°C for 40 minutes to perform an extraction process of tea leaves. The extraction process was repeated twice to prepare a total of 181 L of tea extract. 2.03 kg of dextrin (Pine Oligo 20), 0.18 kg of L-ascorbic acid and 0.13 kg of baking soda were added to the tea extract and mixed. Next, membrane concentration was performed in a manner such that the Brix value reached 30 (NTR-759HG-S4F (Nitto Denko), liquid temperature: 15°C, pressure: 3 MPa), and after concentration, clustered dextrin was added in a manner such that the concentration reached 2.29% by weight. Finally, a sterilization process was performed at 90°C and 30 seconds to prepare a tea extract. The obtained tea extract was spray dried to obtain powdered tea (powder) as a matrix.

[0154] Then, add 200mL of water to the powdered tea 1.2g obtained as described above, make the powdered tea dissolving solution of Brix0.6 (tea solid Brix0.3), in this dissolving solution, add the standard of linalool, geraniol and 2-methylbutyraldehyde in the way shown in the table below with the final concentration, prepare various samples. In addition, since the concentration of the aromatic components contained in various standard products is unknown, the concentration determination based on gas chromatography is implemented in advance. Specifically, since 2-methylbutyraldehyde is difficult to dissolve in water, in order to prepare the concentration determination sample, after the obtained standard product is dissolved in 3 to 100 times of ethanol, the ethanol dissolving product is further diluted with 50 to 5000 times of water as the concentration determination sample. The standard product of linalool, geraniol and 2,4-heptadienal is diluted with pure water between 50 to 5000 times, and the concentration in the range of the calibration curve is appropriately adjusted as the concentration determination sample. The analysis of gas chromatography is implemented using the same method as described above.

[0155] For each sample prepared using the standard product, a sensory evaluation was performed by 4 professional judges who were fully trained in the evaluation of fragrance. As a sensory evaluation, the degree of floral fragrance felt in the sample was evaluated on the following 5-level scale (0.1 point scale), and the average of the scores was calculated. In addition, in the sensory evaluation, the score of the sample (sample 1-1) without the addition of 2-methylbutanal was set to 3 points, and the evaluation of each sample was performed.

[0156] 1: No floral scent

[0157] 2: Slightly feel the floral scent

[0158] 3. Feel the scent of flowers

[0159] 4: Strongly feel the floral scent (excellent floral scent)

[0160] 5: Very strong floral scent (very good floral scent)

[0161] [Table 1]

[0162]

[0163] Furthermore, 0.8 g of a dextrin mixture (Sandec#30: 28.3 parts by weight, CAVAMAX W6: 5 parts by weight, TK-16: 16.7 parts by weight) was added to 1.2 g of the above-mentioned powdered tea (base) to prepare a powdered composition with an increased dextrin content, which was added to 200 mL of water to prepare a powdered tea solution with a Brix of 1.0 (tea solid Brix of 0.3).

[0164] To the obtained powdered tea solution, standard products of linalool, geraniol and 2-methylbutyraldehyde were added to prepare various samples in a manner such that the final concentrations were as shown in the table below. Sensory evaluation was performed on the various prepared samples in the same manner as described above. In addition, regarding the sensory evaluation, sample 2-1 (control) to which 2-methylbutyraldehyde was not added was scored as 3.0 points, and various samples were scored.

[0165] [Table 2]

[0166]

[0167] As described above, it was found that the presence of 2-methylbutanal causes the perception of an excellent floral aroma, and that the degree of the excellent floral aroma can be enhanced by setting the weight ratio of the 2-methylbutanal content to the total content of linalool and geraniol (2-methylbutanal / (linalool+geraniol)) within a predetermined range.

Claims

1. A solid composition, characterized in that Containing linalool, geraniol and 2-methylbutanal, wherein the weight ratio of the 2-methylbutanal content to the total content of linalool and geraniol is 0.03-0.086, The solid composition contains a green tea leaf extract, the green tea leaf extract comes from stem tea, and the linalool, geraniol and 2-methylbutyraldehyde come from the green tea leaf extract. The composition contains two or more types of dextrins.

2. The composition according to claim 1, characterized in that It is a powder composition.

3. The composition according to claim 1, characterized in that Contains linear dextrin and cyclodextrin.

4. The composition according to any one of claims 1 to 3, characterized in that The invention further contains one or more aromatic components selected from α-ionone, β-cyclocitral, (z)-3-hexenol, 1-penten-3-ol, nerolidol, hexanal, (E)-linalool oxide, β-myrcene, trans-β-ocimene, L-α-terpineol, methyl salicylate, benzyl alcohol and indole.

5. A food or beverage, characterized in that: A composition comprising the composition according to any one of claims 1 to 4.

6. The food or beverage according to claim 5, characterized in that: For beverages.

7. The food or beverage according to claim 6, characterized in that: For tea beverage.

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