WO2009119109A1 - テアフラビン類を豊富に含む発酵茶飲料の製造方法 - Google Patents
テアフラビン類を豊富に含む発酵茶飲料の製造方法 Download PDFInfo
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- WO2009119109A1 WO2009119109A1 PCT/JP2009/001391 JP2009001391W WO2009119109A1 WO 2009119109 A1 WO2009119109 A1 WO 2009119109A1 JP 2009001391 W JP2009001391 W JP 2009001391W WO 2009119109 A1 WO2009119109 A1 WO 2009119109A1
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- Prior art keywords
- tea leaves
- tea
- minutes
- mixer
- water
- Prior art date
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- A23F3/18—Extraction of water soluble tea constituents
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- A—HUMAN NECESSITIES
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- A23F3/16—Tea extraction; Tea extracts; Treating tea extract; Making instant tea
- A23F3/163—Liquid or semi-liquid tea extract preparations, e.g. gels, liquid extracts in solid capsules
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
- A23F3/00—Tea; Tea substitutes; Preparations thereof
- A23F3/06—Treating tea before extraction; Preparations produced thereby
- A23F3/14—Tea preparations, e.g. using additives
Definitions
- the present invention relates to a method for producing a fermented tea beverage.
- catechins There are mainly 4 types of catechins [epicatechin (EC), epigallocatechin (EGC), epicatechin gallate (ECG), epigallocatechin gallate (EGCG)] in tea leaves.
- EC epicatechin
- ECG epigallocatechin
- ECG epicatechin gallate
- EGCG epigallocatechin gallate
- TF theaflavin
- TF3-G theaflavin 3-O-gallate
- TF3'-G theaflavin 3'-O-gallate
- TFDG theaflavin 3,3 '-Di-O-gallate
- a method for obtaining fermented tea a method of fermenting tea leaves in a slurry state and a method of pulverizing tea leaves, adding a small amount of water, and shaking and stirring are used.
- the above four types of catechins are oxidatively polymerized by polyphenol oxidase in tea leaves, and theaflavin, two types of theaflavin monogallate, and theaflavin digallate are obtained.
- the remaining EGCG and ECG have problems such as bitter taste, cream down, and dark red color.
- a method in which tannase is added during the fermentation process to cleave the gallate groups of EGCG, ECG, TF3G, TF3'-G, and TFDG, thereby suppressing the bitter taste (for example, Japanese Patent Laid-Open 11-225672).
- a method of adding a tea leaf tissue disrupting enzyme solution such as cellulase, hemicellulase, protopectinase and the like to fresh tea leaves and fermenting it has also been reported (for example, JP-A-2004-113090).
- the object of the present invention is to provide a method for producing a fermented tea beverage, a fermented tea concentrated solution or a fermented tea concentrated powder that has a low bitter taste and is excellent in aroma and sweetness by a simple and inexpensive method.
- the present inventor after adding a large amount of water to the raw tea leaves before wilt treatment and crushing with a mixer, after standing or semi-anaerobic stirring, by removing the solid content and performing the heat treatment, there is less bitter astringency, We have found that it is possible to produce a tea-flavored fermented tea beverage with no sweetness and fragrance cream down. That is, the present invention is a method for producing a fermented tea beverage, which is crushed by adding water to fresh tea leaves, left to stand for 15 minutes or more, cultured and then subjected to heat treatment after removing the solid content. Provided is a method characterized in that a tea beverage is obtained and further concentrated after heat treatment to obtain a concentrate.
- fresh tea leaves crushed with a mixer for 1 second to 3 minutes with water added are allowed to stand for 15 minutes or longer, preferably 24 hours or longer, more preferably 120 hours or longer, and then the solid content is removed.
- Heat treatment is preferably performed by adding 5 times (weight) or more, more preferably 7 times (weight) or more of fresh tea leaves.
- catechins can be efficiently converted to theaflavin without adding an enzyme such as tannase or tea leaf tissue disrupting enzyme from the outside, and theaflavins, theasinensins A and B, and a fermented tea beverage having a high gallic acid content.
- Theaflavins have a bitter and astringent taste compared to TF3G, TF3'G, and TFDG with a gallate group, are sweet, and have a great color tone and a bright orange color.
- the fermented tea beverage produced according to the present invention is substantially free of epigallocatechin gallate and epicatechin gallate. That is, the total amount of epigallocatechin gallate and epicatechin gallate in the product is less than 0.1% with respect to the weight of the raw tea leaves as a starting material, which is a normal high performance as used in the examples described later. In liquid chromatography (HPLC) analysis, no peak of these substances is observed. It has been reported that theaflavin has an activity of inhibiting platelet aggregation much higher than that of EGCG in cell level experiments, and higher than other TF3G, TF3'G, and TFDG.
- HPLC liquid chromatography
- the fermented tea beverage of the present invention is a beverage expected as a health beverage for preventing lifestyle-related diseases such as those who are concerned about thrombosis and blood sugar level.
- the fresh tea leaves used in the method of the present invention refer to tea leaves after harvest and before wilt treatment, or frozen tea leaves after harvest and before wilt treatment.
- Fresh tea leaves include raw tea leaves and stems, which may be used separately or in combination.
- raw tea leaves used as raw materials any tea leaves of green tea varieties and black tea varieties that are generally cultivated can be used.
- Typical tea leaves cultivated in Japan include Asatsuyu, Yabukita, Yamato Midori, Makino Hara, Kanaya Midori, Okumidori, Ookaise, Okuhikari, Meiko, Samidori, Komakage, There are Yamanami, Mine Kaori, Hatsumomiji, Beni Fuuki, Beni Homare, Benihikari, etc.
- the fresh tea leaves may be used immediately after collection or may be used after being frozen and stored immediately after collection.
- the tea leaves may be collected at any of the 1st, 2nd, 3rd and 4th teas.
- the amounts of catechin, polyphenol oxidase, peroxidase, tannase, and hydrolase are different for each leaf, it is preferable to appropriately adjust the reaction conditions depending on the tea leaf of the material used.
- the tea leaves used in the method of the present invention are preferably No. 2 tea and No. 3 tea.
- the amount of catechin and enzyme activity are considerably inferior, but after collecting fresh tea leaves, if left at room temperature for several days, the enzyme is activated and a fermented tea with excellent taste and aroma is obtained.
- the fresh tea leaves are crushed using a mixer or the like.
- the crushing can be performed at a temperature of 0 ° C to 30 ° C.
- the crushing time is preferably 1 second to 3 minutes, more preferably 1 minute.
- the crushing time When the crushing time is short, only a theaflavin is obtained, and when the crushing time is long, a fermented tea beverage containing theaflavins mainly composed of theaflavin is obtained. If the crushing time is shorter than 1 minute, the cells of the tea leaf are not sufficiently destroyed, and the content of theaflavins in the fermented tea beverage is lowered. If the crushing time exceeds 5 minutes, the catechins are not completely converted to theaflavin unless left for a considerable period of time, and the theaflavin gallate body increases, and the bitter taste may be felt in the fermented tea beverage.
- the mixer referred to here is a household mixer (blender) having a capacity of about 700 to 1000 ml and an output of about 200 to 300 W, and those skilled in the art can implement the present invention after scaling up for industrial production.
- An appropriate crushing time can be set according to the machine to be used and the processing amount.
- An example of an industrial production mixer that can be used in the method of the present invention is a commercial mixer (blender) having a capacity of about 4000 ml and an output of about 1400 W, and has a high speed (18,500 rpm) and a medium speed (16,300 rpm). ), Low speed (14,000 rpm).
- a custom-made mixer may be used, or the mixer operation may be repeated according to the amount of tea leaves.
- the mixer operation may be repeated according to the amount of tea leaves.
- any machine can be used.
- a mixer, an ultramizer, a hammer mill, a homogenizer, or the like can be used, but a mixer (blender) is particularly preferable.
- semi-anaerobic agitation refers to mixing tea leaves and water while preventing air from being entrained.
- air is entrained in a liquid using a mixer, stirrer, rotating plate, bottle roller, or the like. It can be done by driving at such a speed. No degassing or air shut-off is required. In particular, it is preferable to gently stir using a stirrer.
- components such as polyphenol oxidase, peroxidase, tannase, hydrolase, tea components catechins, and caffeine present in tea leaf cells are leached into the water.
- catechins are converted into theaflavins by the action of these enzymes.
- Peroxidase is an enzyme that produces theaflavin in the presence of hydrogen peroxide. In this case, since hydrogen peroxide is produced by metabolism, it may not be added from the outside.
- polyphenol oxidase is an enzyme that generates theaflavin in the presence of oxygen. However, when it is left standing, the supply of oxygen is cut off, so that it does not act after the dissolved oxygen in the water is consumed. Therefore, in the stationary culture method, the action of polyphenol oxidase is low among polyphenol oxidase and peroxidase involved in theaflavin production. Tannase can cleave gallate groups of catechins and theaflavins.
- the gallate group is also cleaved by the action of hydrolase.
- peroxidase mainly acts to convert catechins to theaflavins (TF, TF3G, TF3'G, TFDG) mainly composed of theaflavins.
- hydrolase works together with peroxidase, and the hydrolysis reaction of TF3G, TF3'G, TFDG proceeds and all is converted to TF. With this reaction, gallic acid is produced.
- EGCGs are dehydrogenated and condensed with each other's pyrogallol rings to produce theasinensin A
- EGCG and EGC are dehydrogenated and condensed with each other's pyrogallol rings to produce theasinensin B.
- Semi-anaerobic agitation also causes the enzymatic reaction to proceed as in the stationary culture method. Agitation should be very slow and care should be taken not to entrain air.
- TF is generated from EC and EGC by the enzymatic reaction of peroxidase.
- ECG and EGCG not involved in TF are cleaved by tannase or hydrolase, converted to EC and EGC, and then converted to TF by peroxidase.
- the hydrolysis reaction is an equilibrium reaction
- EC and EGC obtained by hydrolysis are converted to theaflavin by peroxidase, so the equilibrium reaction tilts to the right with the consumption of EC and EGC, and the hydrolysis reaction of ECG and EGCG It is thought to progress.
- Semi-anaerobic agitation also causes the enzymatic reaction to proceed as in the case of long-term stationary culture. Agitation should be very slow and care should be taken not to entrain air.
- the standing time varies depending on the type of tea leaves used, moisture content, storage conditions, etc., but is preferably 15 minutes or more, more preferably 24 hours or more, still more preferably 48 hours or more, and even more preferably 120 hours or more. .
- the upper limit of the standing time is not particularly limited, and the reaction can be terminated at an appropriate time while monitoring the production of theaflavins.
- the standing temperature is not particularly limited as long as it is within the temperature range in which the enzyme can act, and is, for example, 10 ° C to 40 ° C, preferably 20 ° C to 30 ° C. When stirring with a stirrer, all catechins are converted to theaflavin in 20 minutes to several hours.
- the stirring time is preferably within 24 hours.
- the amount of water added to the fresh tea leaves can be appropriately selected according to the type of tea leaves used, the moisture content, the storage conditions, etc., but preferably 5 ml to 500 ml, more preferably 7 ml to 200 ml, more preferably 1 g of fresh tea leaves. It is preferably 10 ml to 100 ml. When the amount is less than 5 ml, the amount of theaflavin produced decreases, and when the amount is more than 500 ml, the flavor of the obtained fermented tea beverage decreases. Further, a green tea extract may be used in addition to water or instead of water.
- the green tea extract includes water extracted from heat-treated green tea leaves, water extracted from heat-treated green tea leaves extracted with water, concentrated water extract, and water extracted from tea extract. For example, an aqueous solution containing catechins can be used.
- the fermented tea obtained by the method of the present invention is bright orange and sweet, has a fragrance, has little bitter taste, and has a mellow taste.
- gallic acid generated by cleavage of gallate groups of EGCG and ECG is very large.
- the amount of polyphenols is also high, so it has antioxidant activity, anticancer promotion activity, and anti-obesity effect. It is a fermented tea that contains a very high amount of gallic acid.
- the amount of polyphenol is a value obtained by the Folin-Denis method and subtracting the amount of catechin.
- the reaction solution After standing culture for a desired time, the reaction solution is filtered to remove solids. Filtration may be natural filtration or suction filtration under reduced pressure. Alternatively, the solid content may be removed by centrifugation. In the case of stirring with a stirrer, the reaction solution may be filtered immediately after stirring, but it is better to leave it in a refrigerator for 1 or 2 days immediately after stirring in terms of both aroma and taste. The resulting solution has a bright red or orange color.
- This solution is bottled, covered with aluminum foil or the like so that the scent does not come off, then bathed for about 5 to 10 minutes at 95 ° C to 100 ° C, and then left at room temperature to obtain a fermented tea beverage. Can do. Or you may autoclave.
- an antioxidant such as sodium ascorbate may be added.
- filtration is performed using a sharp press centrifuge or the like.
- retort sterilization is performed according to the provisions of the Food Sanitation Law.
- plate sterilization and tube sterilization may be performed by a hot pack filling method.
- a concentrated solution or extract powder can be obtained through a concentration step such as vacuum concentration, spray drying, freeze drying and the like.
- Example 1 (Example of using water 5 times the amount of fresh tea leaves and leaving it to stand for 120 hours after crushing for 1 minute) Collected on July 18th, 100 ml of distilled water was added to 20 g of Bukita tea leaves, crushed with a home mixer for 1 minute, transferred to a 100 ml Erlenmeyer flask, covered with aluminum foil, and allowed to stand at room temperature for 120 hours. Suction filtration was performed, and the obtained filtrate was transferred to a glass bottle, covered with aluminum foil, then bathed at 100 ° C. for 10 minutes, and then allowed to stand at room temperature. When analyzed by HPLC, it was 200 mg (0.2%) TF, 282 mg (0.28%) caffeine when converted to 100 g fresh leaves.
- Example 2 (Example of using water 10 times the amount of fresh tea leaves and leaving it to stand for 120 hours after crushing for 1 minute)
- 9.6 g of Bukita tea leaves were added with 100 ml of distilled water, crushed with a home mixer for 1 minute, transferred to a 100 ml Erlenmeyer flask, covered with aluminum foil, and allowed to stand at room temperature for 120 hours.
- Suction filtration was performed, and the obtained filtrate was transferred to a glass bottle, covered with aluminum foil, then bathed at 100 ° C. for 10 minutes, and then allowed to stand at room temperature.
- Example 3 (Example of using 80 times the amount of fresh tea leaves and crushing for 1 minute and then standing for 120 hours) Extracted on July 18th, 800 ml of distilled water was added to 9.6 g of Bukita tea leaves, crushed with a home mixer for 1 minute, transferred to a 1000 ml Erlenmeyer flask, covered with aluminum foil, and allowed to stand at room temperature for 120 hours. Suction filtration was performed, and the obtained filtrate was transferred to a glass bottle, covered with aluminum foil, then bathed at 100 ° C. for 10 minutes, and then allowed to stand at room temperature. When analyzed by HPLC, it was TF 780 mg (0.78%) and caffeine 435 mg (0.44%) in terms of 100 g fresh leaves.
- Example 4 Collected on July 18th and added 100 ml of distilled water to 10.0 g of Bukita tea leaves, crushed for 3 minutes with a home mixer, transferred to a 100 ml Erlenmeyer flask, covered with aluminum foil, and allowed to stand at room temperature for 120 hours. Suction filtration was performed, and the obtained filtrate was transferred to a glass bottle, covered with aluminum foil, then bathed at 100 ° C. for 10 minutes, and then allowed to stand at room temperature. When analyzed by HPLC, TF 350 mg (0.35%), TF3G 25.1 mg (0.025%), TF3'G 12.0 mg (0.012%), TFDG 7.1 mg (0.007%), caffeine 307 mg (0.31) %) Met.
- Example 5 (Example of using 80 times the amount of fresh tea leaves and leaving it still for 120 hours after crushing for 3 minutes) Collected on July 18th, 800 ml of distilled water was added to 9.70 g of Bukita tea leaves, crushed with a home mixer for 3 minutes, transferred to a 1000 ml Erlenmeyer flask, covered with aluminum foil, and allowed to stand at room temperature for 120 hours. Suction filtration was performed, and the obtained filtrate was transferred to a glass bottle, covered with aluminum foil, then bathed at 100 ° C. for 10 minutes, and then allowed to stand at room temperature.
- Example 6 (Example of scale-up using 5 times the amount of frozen fresh tea leaves, crushing for 1 minute and stirring with a stirrer) Collected on June 25 and 480 g of Bukita tea leaves were packed in an aluminum vacuum package and stored frozen at -78 ° C. After 1 week, add 4 liters of water to 120 g of frozen tea leaves and crush it for 1 minute with an industrial mixer (High speed) and transfer to a 30 liter stainless steel tank. This operation is repeated four times to crush all tea leaves (480 g), and finally 9 liters of water is added to make the total amount of water 25 liters. Then gently agitate with an industrial stirrer for 40 minutes.
- an industrial mixer High speed
- Example 7 (Example of using green tea leaf extract processed with water and heat instead of water) Heated No. 4 tea (50 g) was extracted with 2 liters of water and 100 g of frozen tea leaves (tea leaves collected on June 25) were added and crushed for 1 minute with an industrial mixer (High speed). Gently stirred for 5 minutes so that the water surface did not move. After that, it was stored in the refrigerator for 2 days and left until the taste became mild. Then, after coarse filtration, sodium ascorbate is added for filtration. After filtration, retort sterilization was performed. Analysis by HPLC revealed that 2 liters of beverage contained TF 1.2 g, gallic acid 1.6 g, and caffeine 2.6 g.
- Example 8 (Example of concentrated powder of beverage produced) Collected on July 18th, 350 ml of water was added to 7.7 g of Bukita tea leaves, crushed with a home mixer for 1 minute, transferred to a 500 ml Erlenmeyer flask, covered with aluminum foil, and allowed to stand at room temperature for 120 hours. Suction filtration was performed, and the resulting filtrate was transferred to a glass bottle, capped with aluminum foil, then bathed at 100 ° C. for 10 minutes, and then lyophilized to obtain 1.5 g. In 1.5 g, it contains TF15mg, gallic acid 22mg, caffeine 37.1mg, polyphenols (Folin-Denis method) 315mg as main components
- Example 9 (example using stem) July 15 Add 300 ml of water to 20.5 g of red stalks collected from Benifumi, crush it with an industrial mixer for 1 minute, transfer to a 100 ml Erlenmeyer flask and gently stir for 2 hours. After performing coarse filtration, sodium ascorbate is added for filtration. After filtration, retort sterilization was performed. When converted to 100 g of raw stems, 30 mg (0.03%) of TF and 96 mg (0.1%) of caffeine were obtained.
- Comparative Example 1 Comparative example crushed in air
- 9.6 g of tea leaves and Bukita tea leaves were crushed with a mixer for 1 minute, added with 100 ml of distilled water, transferred to a 100 ml Erlenmeyer flask, covered with aluminum foil, and allowed to stand at room temperature for 120 hours.
- Suction filtration was performed, and the obtained filtrate was transferred to a glass bottle, covered with aluminum foil, then bathed at 100 ° C. for 10 minutes, and then allowed to stand at room temperature.
- TF 150 mg (0.15%) caffeine 150 mg (0.15%) in terms of 100 g fresh leaves.
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Abstract
Description
本出願は,日本特許出願2008-087491(2008年3月28日出願)に基づく優先権を主張しており,この内容は本明細書に参照として取り込まれる。
本発明は、発酵茶飲料の製造方法に関する。
EC+EGC → TF
EC+EGCG → TF3-G
ECG+EGC → TF3’-G
ECG+EGCG → TFDG
7月18日採取やぶきた茶葉20gに蒸留水100mlを加え、家庭用ミキサーにて1分間破砕後、100ml三角フラスコに移しアルミホイルにてふたをし、室温で120時間静置した。吸引ろ取を行い、得られたろ液をガラスビンに移し、アルミホイルでふたをした後、10分間100℃にて湯煎を行った後、室温下放置した。HPLCで分析したところ、100g生葉に換算して、TF 200 mg (0.2%), caffeine 282 mg (0.28%) であった。
7月18日採取やぶきた茶葉9. 6gに蒸留水100mlを加え、家庭用ミキサーにて1分間破砕後、100ml三角フラスコに移しアルミホイルにてふたをし、室温で120時間静置した。吸引ろ取を行い、得られたろ液をガラスビンに移し、アルミホイルでふたをした後、10分間100℃にて湯煎を行った後、室温下放置した。HPLCで分析したところ、100g生葉に換算して、TF 400 mg (0.4%), caffeine 440 mg (0.44%) であった。
7月18日採取やぶきた茶葉9.6gに蒸留水800mlを加え、家庭用ミキサーにて1分間破砕後、1000ml三角フラスコに移しアルミホイルにてふたをし、室温で120時間静置した。吸引ろ取を行い、得られたろ液をガラスビンに移し、アルミホイルでふたをした後、10分間100℃にて湯煎を行った後、室温下放置した。HPLCで分析したところ、100g生葉に換算して、TF 780 mg (0.78%), caffeine 435 mg (0.44%) であった。
7月18日採取やぶきた茶葉10.0gに蒸留水100mlを加え、家庭用ミキサーにて3分間破砕後、100ml三角フラスコに移しアルミホイルにてふたをし、室温で120時間静置した。吸引ろ取を行い、得られたろ液をガラスビンに移し、アルミホイルでふたをした後、10分間100℃にて湯煎を行った後、室温下放置した。HPLCで分析したところ、100g生葉に換算するとTF 350 mg (0.35%), TF3G 25.1mg (0.025%), TF3’G 12.0 mg (0.012%), TFDG 7.1mg (0.007%), caffeine 307 mg (0.31%) であった。
7月18日採取やぶきた茶葉9.70gに蒸留水800mlを加え、家庭用ミキサーにて3分間破砕し、1000ml三角フラスコに移しアルミホイルにてふたをし、室温で120時間静置した。吸引ろ取を行い、得られたろ液をガラスビンに移し、アルミホイルでふたをした後、10分間100℃にて湯煎を行った後、室温下放置した。HPLCで分析したところ、100g生葉に換算するとTF 630mg (0.63%), TF3G 78.2mg (0.078%), TF3’G 20.0mg (0.020%), TFDG 32.1mg (0.032%), caffeine 435 mg (0.44%) であった。
6月25日採取やぶきた茶葉480gをアルミ真空パック詰めし-78℃で冷凍保存した。1週間後冷凍保存した茶葉120gに水4リットル加え工業用ミキサー(High スピード)にて1分間破砕し30リットル用ステンレス槽に移す。この操作を4回繰り返し全ての茶葉(480g)を破砕し最後に水9リットルを添加し水の全量を25リットルとする。その後工業用スターラーで40分間静かに撹拌する。粗濾過を行った後、アスコルビン酸Naを添加して濾過を行い、濾過後レトルト殺菌を行った。HPLCで分析したところ茶葉1Kgに換算するとTF3.5g (0.35%), 没食子酸5.0g (0.5%), カフェイン7.4g (0.74%), ポリフェノール(PPh)(Folin-Denis法)12.7g (1.3%)であった。
加熱加工した4番茶(50g)を2リットルの水で抽出した液に冷凍茶葉(6月25日採取茶葉)100gを加え工業用ミキサー(High スピード)にて1分間破砕し、工業用ミキサーで40分間水面が動かないように静かに撹拌した。その後冷蔵庫に2日間保管し味がマイルドになるまで放置した。その後粗濾過を行った後、アスコルビン酸Naを添加して濾過を行う。濾過後レトルト殺菌を行った。HPLCで分析したところ2リットルの飲料にTF1.2g, 没食子酸1.6g、カフェイン2.6gが含まれていた。
7月18日採取やぶきた茶葉7.7gに水350mlを加え、家庭用ミキサーにて1分間破砕後、500ml三角フラスコに移しアルミホイルにてふたをし、室温で120時間静置した。吸引ろ取を行い、得られたろ液をガラスビンに移し、アルミホイルでふたをした後、10分間100℃にて湯煎を行った後、凍結乾燥し1.5gを得た。1.5 g 中、主成分としてTF15mg、没食子酸 22mg 、カフェイン37.1 mg 、ポリフェノール類(Folin-Denis法)315mgを含む。
7月15日採取紅富貴の茎20.5gに水300mlを加え、工業用ミキサーにて1分間破砕後、100ml三角フラスコに移し2時間静かに撹拌する。粗濾過を行った後、アスコルビン酸Naを添加して濾過を行う。濾過後レトルト殺菌を行った。100gの生茎に換算するとTF30mg(0.03%), カフェイン96mg(0.1%)が得られた。
2007年7月18日採取やぶきた茶葉9.6gの茶葉をミキサーで1分間破砕後、蒸留水100mlを加え100ml三角フラスコに移しアルミホイルにてふたをし、室温で120時間静置した。吸引ろ取を行い、得られたろ液をガラスビンに移し、アルミホイルでふたをした後、10分間100℃にて湯煎を行った後、室温下放置した。HPLCで分析したところ、100g生葉に換算して、TF 150mg (0.15%), caffeine 150 mg (0.15%) であった。
実施例1、6
香り:マイルドな芳香
水色:適度なオレンジ色
濃度感:若干濃度感が弱い
苦渋味:非常に弱い
甘み: 甘みがすこし弱い
総合評価:マイルドな芳香による癒しを感じながら、口に含むと苦渋味が非常に弱くが濃度感、甘み感が少し足りないが、あっさり飲める。
実施例2、3、
香り:マイルドな芳香
水色:濃いオレンジ色
濃度感:適度にある
苦渋味:非常に弱い
甘み:適度な甘み
酸味:ほとんどのパネラーは酸味を感じないが一部味覚に優れたパネラーが没食子酸の酸味を感じるといい当てた。いずれのパネラーもさわやかな酸味であると評価した。
総合評価:マイルドな芳香による癒しを感じながら、口に含むと苦渋味が非常に弱く、濃度感、甘み感があり癒し効果が期待でき、全体的なバランスが非常によい。
実施例4、5
香り:マイルドな芳香
水色:濃いオレンジ色
濃度感:適度にある
苦渋味:若干苦みを感じる
甘み:適度な甘み
酸味:感じない
総合評価:マイルドな芳香による癒しを感じながら、口に含むと苦渋味が非常に弱く、濃度感、甘み感があり癒し効果が期待でき、全体的なバランスが非常によい。
香り:香りが薄い
水色:濃いオレンジ色
濃度感:適度にある
苦渋味:苦みを感じる
甘み:甘みは、薄い
総合評価:香りが薄く、口に含むと苦渋味を感じ、甘みはほとんど感じられない。
Claims (10)
- 発酵茶飲料の製造方法であって、生茶葉に水を加えてミキサーで破砕し、15分間以上静置または準嫌気的撹拌して培養した後に、固形分を除去して加熱処理を行ない発酵茶飲料を得ることを特徴とする方法。
- 発酵茶濃縮物の製造方法であって、生茶葉に水を加えてミキサーで破砕し、15分間以上静置または準嫌気的撹拌して培養した後に、固形分を除去して加熱処理を行ない、次に濃縮することを含む方法。
- 培養が24時間以上静置することにより行われる、請求項1または2に記載の方法。
- 培養が120時間以上静置することにより行われる、請求項3記載の方法。
- 培養が、生茶葉の5倍(重量)以上の水の存在下で行われる、請求項1-4のいずれかに記載の方法。
- 培養が、生茶葉の7倍(重量)以上の水の存在下で行われる、請求項5に記載の方法。
- 破砕時間が1秒から3分である、請求項1-6のいずれかに記載の方法。
- 生茶葉として茶葉の茎を用いる、請求項1-7のいずれかに記載の方法。
- 生茶葉に水を加えてミキサーで破砕し、15分間以上静置または準嫌気的撹拌して培養した後に、固形分を除去して加熱処理を行なうことにより得られる発酵茶飲料。
- 生茶葉に水を加えてミキサーで破砕し、15分間以上静置または準嫌気的撹拌して培養した後に、固形分を除去して加熱処理を行ない、次に濃縮することにより得られる、発酵茶濃縮物。
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CN200980110963.4A CN101980614B (zh) | 2008-03-28 | 2009-03-27 | 富含茶黄素类的发酵茶饮料的制造方法 |
US12/934,693 US20110064851A1 (en) | 2008-03-28 | 2009-03-27 | Method of producing fermented tea drink rich in theaflavins |
GB1018191.5A GB2471250B (en) | 2008-03-28 | 2009-03-27 | Method of producing fermented tea drink rich in theaflavins |
JP2010505363A JP5472092B2 (ja) | 2008-03-28 | 2009-03-27 | テアフラビン類を豊富に含む発酵茶飲料の製造方法 |
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JP (1) | JP5472092B2 (ja) |
CN (1) | CN101980614B (ja) |
GB (1) | GB2471250B (ja) |
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CN103535461A (zh) * | 2013-10-11 | 2014-01-29 | 集美大学 | 茶叶的酶法二次加工方法 |
CN106819243A (zh) * | 2017-01-19 | 2017-06-13 | 合肥观云阁商贸有限公司 | 增强免疫绿茶饮料的生产方法 |
CN106819251A (zh) * | 2017-01-19 | 2017-06-13 | 合肥观云阁商贸有限公司 | 绿茶鲜茶饮料的生产方法 |
CN106798046A (zh) * | 2017-01-19 | 2017-06-06 | 合肥观云阁商贸有限公司 | 茶叶薯尖绿茶饮料的制备方法 |
CN114009546A (zh) * | 2021-11-12 | 2022-02-08 | 中国农业科学院茶叶研究所 | 富含聚酯型儿茶素的***型速溶红茶的加工方法 |
CN114015733B (zh) * | 2021-11-12 | 2023-08-08 | 中国农业科学院茶叶研究所 | 聚酯型儿茶素的酶盐偶联催化合成方法 |
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JPS5030717A (ja) * | 1973-07-21 | 1975-03-27 | ||
JP2007143461A (ja) * | 2005-11-28 | 2007-06-14 | Hamamatsu Kagaku Gijutsu Kenkyu Shinkokai | テアフラビン類の合成方法 |
JP2007228964A (ja) * | 2006-02-02 | 2007-09-13 | Nagasaki Prefecture | 発酵茶葉、発酵茶葉抽出物および飲食品 |
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CH429407A (fr) * | 1963-11-27 | 1967-01-31 | Nestle Sa | Procédé de fabrication d'extraits de thé |
GB1478139A (en) * | 1973-07-27 | 1977-06-29 | Brooke Bond Liebig Ltd | Manufacture of tea |
US4051264A (en) * | 1975-09-05 | 1977-09-27 | Thomas J. Lipton, Inc. | Cold water extractable tea leaf and process |
ATE199118T1 (de) * | 1995-09-04 | 2001-02-15 | Unilever Nv | Verfahren zur farbvertiefung in nahrungsmitteln auf teebasis |
DE602005018353D1 (de) * | 2004-03-12 | 2010-01-28 | Nippon Supplement Inc | Fermentierter Tee und Verfahren zur Herstellung von fermentiertem Tee |
JP4537352B2 (ja) * | 2006-07-06 | 2010-09-01 | 株式会社レッツ | プーアール茶の製造方法 |
CN101096693B (zh) * | 2007-07-26 | 2010-04-21 | 桂林莱茵生物科技股份有限公司 | 一种从新鲜绿茶制备茶黄素、茶红素的方法 |
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JPS5030717A (ja) * | 1973-07-21 | 1975-03-27 | ||
JP2007143461A (ja) * | 2005-11-28 | 2007-06-14 | Hamamatsu Kagaku Gijutsu Kenkyu Shinkokai | テアフラビン類の合成方法 |
JP2007228964A (ja) * | 2006-02-02 | 2007-09-13 | Nagasaki Prefecture | 発酵茶葉、発酵茶葉抽出物および飲食品 |
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CN101980614A (zh) | 2011-02-23 |
GB2471250B (en) | 2013-01-30 |
CN101980614B (zh) | 2013-04-24 |
US20110064851A1 (en) | 2011-03-17 |
JPWO2009119109A1 (ja) | 2011-07-21 |
TW201012396A (en) | 2010-04-01 |
JP5472092B2 (ja) | 2014-04-16 |
GB2471250A (en) | 2010-12-22 |
GB201018191D0 (en) | 2010-12-15 |
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