CN100506057C - Packaged tea drink - Google Patents
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- CN100506057C CN100506057C CNB200380100270XA CN200380100270A CN100506057C CN 100506057 C CN100506057 C CN 100506057C CN B200380100270X A CNB200380100270X A CN B200380100270XA CN 200380100270 A CN200380100270 A CN 200380100270A CN 100506057 C CN100506057 C CN 100506057C
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Abstract
A packaged tea drink which contains the following components (A), (B) and (C) and in which the ratio of the content of the component (B) to the content of the component (C) falls within a specific range: (A) unpolymerized catechins 0.05 to 0.5% by weight; (B) magnesium; and (C) water-insoluble solid particles having a diameter of 0.2 to 0.8 mum. This tea drink contains the unpolymerized catechins at a high concentration, shows neither sedimentation nor precipitation even after prolonged storage and has a favorable body.
Description
Technical field
The present invention relates to the container packed tea beverage that a kind of high concentration ground contains the non-polymer pyrocatechol.
Background technology
As the effect of pyrocatechol, having of having reported suppresses effect and the alpha amylase activity inhibition that cholesterol rises.In order to obtain such physiologic effect, the adult needed one day drink 4～5 glasss tea, and therefore, in order to absorb a large amount of pyrocatechols more easily, expectation obtains pyrocatechol is matched with technology in the beverage with high concentration.As one of this method, there are the concentrate that utilizes green-tea extract or refining thing etc. to add pyrocatechol in the beverage method with dissolved state.
But the beverage that has cooperated the concentrate of green-tea extract or refining thing produces sediment or precipitation during long preservation after manufacturing, big macrolesion outward appearance.Even present tea beverage, particularly green tea beverage also generate sediment or precipitation sometimes in preservation, cooperated the concentrate of green-tea extract or the beverage of refining thing, the deterioration of its outward appearance is very remarkable.The generation reason of the sediment of green tea beverage or precipitation be it is said because compositions such as polysaccharide, protein, Polyphenols or metal ion form complex.The formation mechanism complexity of sediment or precipitation has been studied various countermeasures at present.For example, as the countermeasure that is conceived to the macromolecule composition in the green tea, method of reporting has: thus the method for utilizing enzyme to handle will to form the composition of polymer composite to decompose to take place (spy opens flat 5-328901 number, spy and opens flat 11-308965 number) with degraded inhibition sediment thereby, utilize milipore filter with the green tea composition carry out classification, by removing the method (spy opens flat 4-45744 number) of the macromolecule composition inhibition sediment generation of molecular weight 10,000 or more substantially.On the other hand, as the method that is conceived to metal ion, thereby reported the method (spy opens flat 11-504224 number) of utilizing cationic ion-exchange resin to handle and and then carry out micro-filtration inhibition water colour and muddiness.
Summary of the invention
The present invention relates to a kind of container packed tea beverage, it comprises that following composition (A), (B) reach (C):
(A) non-polymer pyrocatechol 0.05～0.5 weight %,
(B) magnesium,
(C) particle diameter is the water-insoluble solid of 0.2～0.8 μ m,
The content (mg/L) of composition (B) and composition (C) is in following formula (1)
20<(C)<—13×(B)+140……(1)
Scope in.
In addition; The present invention will be selected from extract and the concentrate of green-tea extract or the autofrettage of the tea extract that refining thing mixes of the raw material tea in green tea, semi-fermented tea and the fermented tea; It is characterized in that; The mixed liquor of the extract of this raw material tea and any or they in this concentrate or the refining thing is contacted with gel-type ion-exchange resin; Non-polymer pyrocatechol content is 0.05～1.5 % by weight; Magnesium density (B1) [mg/L] satisfies the relation of following formula (3) with the water-insoluble solid amount (C1) [mg/L] that is derived from raw material tealeaves of 0.2～0.8 μ m
20<(C1)<—7.8×(B1)+195……(3)。
The specific embodiment
In present means, utilizing ultrafiltration or micro-filtration almost to remove in the method for macromolecule composition, the such shortcoming of the tea beverage shortage distinctive local flavor of tea of sediment or precipitation has been removed, suppressed to the flavour composition that exists tea significantly.When carrying out the enzyme processing, the flavor because of enzyme self changes the original local flavor of tea sometimes.
Therefore, even containing non-polymer pyrocatechol long preservation does not produce the good container packed tea beverage of sediment or precipitation and flavour yet with the present invention relates to a kind of high concentration.
Sediment and the precipitation of the inventor when suppressing such container packed tea beverage long preservation, carry out various researchs, found that: by control magnesium density and particle diameter is the amount of the water-insoluble solid of 0.2～0.8 μ m, even can obtain the beverage that long preservation can not produce sediment or precipitation yet, not damage the original local flavor of tea.Also find in addition: utilize cationic ion-exchange resin particularly the gel type cation exchanger resin handle and can efficient control this magnesium density well.
Beverage of the present invention contains to high concentration the non-polymer pyrocatechol, and is good and refrigerant sense is arranged even long preservation does not produce sediment or precipitation and flavour yet, is suitable for often drinking.
In the present invention, so-called (A) non-polymer pyrocatechol is the general name of table body pyrocatechols such as non-body surface pyrocatechol such as comprehensive catechol, Gallate catechol, catechol gallic acid ester, Gallate catechol gallic acid ester and epicatechol, epigallocatechin, epicatechol gallic acid ester, epigallocatechin gallate.The concentration of said here non-polymer pyrocatechol is based on that the total amount of eight kinds of above-mentioned totals defines.
In container packed tea beverage of the present invention, contain (A) non-polymer pyrocatechol 0.05～0.5 weight % that non-polymer promptly is in the state of being dissolved in the water, be preferably 0.06～0.5 weight %, 0.07～0.45 weight % more preferably, 0.08～0.45 weight % more preferably, more preferably 0.092～0.4 weight %, more preferably 0.11～0.3 weight %, more preferably 0.12～0.3 weight %.When non-polymer pyrocatechol content is in this scope, absorb the non-polymer pyrocatechol of volume easily, effectively the non-polymer pyrocatechol is absorbed in the body easily, and do not produce strong bitter taste, astringent taste, strong convergence.The concentration of this non-polymer pyrocatechol can be adjusted by the concentrate of green-tea extract or the use level of refining thing.
(A1) non-body surface pyrocatechol of container packed tea beverage of the present invention and the weight rate [(A1)/(A2)] of (A2) showing the body pyrocatechol, the viewpoint that form and aspect during from the inhibition preservation change is considered, be preferably 0.54～9.0, more preferably 0.55～9.0, more preferably 0.67～9.0, more preferably 0.73～9.0, more preferably 1.0～9.0.
Non-polymer pyrocatechol in the container packed tea beverage of the present invention, be generically and collectively referred to as the Gallate body and, preferably keep the composition of natural green tea by what epigallocatechin gallate, Gallate catechol gallic acid ester, epigallocatechin and Gallate catechol were formed by the ratio that is generically and collectively referred to as non-Gallate body that epicatechol gallic acid ester, catechol gallic acid ester, epicatechol and catechol are formed.Therefore, even in beverage, keeping on the composition this point of natural green tea, preferably above-mentioned four kinds of Gallate body total amounts always surpass above-mentioned four kinds of non-Gallate body total amounts.
In addition, in the container packed tea beverage of the present invention by catechol gallic acid ester, epicatechol gallic acid ester, Gallate catechol gallic acid ester and epigallocatechin gallate constitute to be generically and collectively referred to as the ratio that the gallic acid ester body accounts in whole non-polymer pyrocatechols be more than or equal to 45 weight %, on the validity of the physiologic effect of non-polymer pyrocatechol, be preferred.
(B) magnesium density in the container packed tea beverage of the present invention is adjusted into 0～9.2mg/L, is preferably 0～5mg/L, more preferably 0～2mg/L is better.As the method that reduces magnesium density, can enumerate the method that any or mixed liquor as the refining thing of the extract of the tea of raw material and green-tea extract are contacted with cationic ion-exchange resin.In this employed cationic ion-exchange resin, used resin with sulfonic group, carboxyl, phosphate etc.Specifically, can enumerate with Diaion SK1B be representative SK series, with Diaion PK208 be representative PK series (Mitsubishi Chemical society system), with Amberlite IR116 be representative No. 100 series (Rohm and Haas society system), with Dowex 50W-X1 be the W series (DowChemicals society system) of representative, with Diaion CR10 chelating resins such as (Mitsubishi Chemical society systems) etc., but be not limited thereto.Wherein, be preferably the gel type cation exchanger resin.
The contact method of raw material or above-mentioned mixed liquor and cationic ion-exchange resin can carry out with batch (-type), semibatch, semi continuous or continous way, is filled into resin in the post and makes it continuously by better.When the magnesium density in the beverage surpasses 9.2mg/L,, when long preservation, also be easy to generate sediment or precipitation even reduce by the water-insoluble solid amount of 0.2～0.8 μ m.
In the present invention, so-called (C) particle diameter be the water-insoluble solid of 0.2～0.8 μ m be meant by the aperture be membrane filter (for example Japan's filter paper system fiber mixed ester type) back of 0.8 μ m, attract filter beverages with the membrane filter (for example Millipore society system " Omnipore ") of 0.2 μ m after, on film residual solid, mensuration absolute dry weight amount is also calculated content in the beverage.This water-insoluble solid is formed by polysaccharide, protein, Polyphenols and metal ion etc.As the method that reduces water-insoluble solid amount, can enumerate material suitable in the concentrate of selecting commercially available green-tea extract or the refining thing, they are made with extra care employed method again.Perhaps, also can in the drink manufacturing operation, utilize common cylindrical filter to filter.As filter, as long as use Zeta Plus series (Cuno society system) or ProfileII series (Nihon Pall society system) etc. just passable, there is no need to remove the water-insoluble solid significantly with milipore filter (UF) or secondary filter film special films such as (MF) at the filter of industrial scale use.The concentration of this insoluble solid in beverage of the present invention is preferably the concentration above 20mg/L.If making particle diameter is that the content of the water-insoluble solid amount of 0.2～0.8 μ m is reduced to smaller or equal to 20mg/L, then such special film is necessary, and the productivity of beverage significantly descends.In addition, because the formation composition of water-insoluble solid is the taste composition in the tea, so when smaller or equal to 20mg/L the time, drinking, feel bitter taste, astringent taste is strong and become the beverage that is unsuitable for normal drink.
Because composition (B) and composition (C) have all participated in the generation of sediment or precipitation, so the situation that two sides reduce suppresses the effect height of sediment or precipitation than the situation that only reduces any.In addition, in order not damage the local flavor of beverage, need be more than or equal to contain composition (C) a certain amount ofly.
Thus, the content (mg/L) of composition (B) and composition (C) is adjusted at following formula (1)
20<(C)<—13×(B)+140……(1)
Scope in preferable, be preferably the following formula (2) that is adjusted at
20<(C)<—8.7×(B)+100……(2)
Scope in preferable.When the relation of composition (B) and composition (C) is in outside this scope, during long preservation, produce sediment or precipitation.
The pH value of container packed tea beverage of the present invention is 2～7 under 25 ℃, is preferably 3～7, more preferably 5～7, considers that from the viewpoint of the chemical stability of non-polymer catechin this is preferred.
Container packed tea beverage of the present invention preferably carries out cationic ion-exchange resin processing as described above or filtration treatment as required and cooperates the extract of raw material tea and the concentrate of green-tea extract or refining thing, make thus.
As the concentrate or the refining thing of green tea abstract, can enumerate commercially available Mitsui agricultural (strain) " Polyphenon ", Yi Tengyuan (strain) " TEAFURAN ", sun chemistry (strain) " SUNPHENON " etc.Also can use the material after above-mentioned substance re-refined.As the method for re-refining, for example there is concentrate with green-tea extract to be suspended in the mixture of water or water and organic solvent, to remove the precipitation that produced, then remove the method for desolvating by adding organic solvent therein.Perhaps can use to concentrated utilize extract that hot water or water-miscible organic solvent extract from tealeaves and the further material of refining gained of material, perhaps can use to the extract that is extracted carry out directly refining and material.As the concentrate of said green-tea extract or the form of refining thing herein, can enumerate various forms such as solid, the aqueous solution, pulpous state.
As the extract of employed raw material tea in the container packed tea beverage of the present invention, extract and the non-tea that can enumerate the tea that is selected from green tea, semi-fermented tea and fermented tea are beverage.Wherein, be preferably above-mentioned refining thing is coupled to beverage in the extract of raw material tea, be preferably especially above-mentioned refining thing is coupled to green tea beverage in the extract of green tea.As semi-fermented tea, can enumerate oolong tea, as fermented tea, can enumerate black tea.In addition, be beverage as non-tea, can enumerate soda as soft drink, add fruit extract beverage, add vegetable extract fruit juice, add flavor water (nearwater), sports drink, weight-reducing drinks etc.
As green tea used in the present invention, the tealeaves of the tealeaves tea making that can enumerate Camellia, for example obtains by C.sinensis, C.assamica and the seed that staves or by their hybrid.In the tealeaves of this tea making, simmer tea, kind tea, beautiful reveal, green teas such as some tea, pot parched tea.
Container packed tea beverage of the present invention is preferably especially by cooperation and utilizes the extract of the tea that following method obtains to make.
Namely; Extract and the concentrate of green-tea extract or the autofrettage of the tea extract that refining thing mixes that will be selected from the raw material tea in green tea, semi-fermented tea and the fermented tea; It is characterized in that; The mixture of any or they of the extract of this raw material tea and this concentrate or refining thing is contacted with the gel type cation exchanger resin; Non-polymer pyrocatechol content is 0.05～1.5 % by weight; Magnesium density (B1) [mg/L] satisfies the relation of following formula (3) with the water-insoluble solid amount (C1) [mg/L] that is derived from raw material tealeaves of 0.2～0.8 μ m
20<(C1)<—7.8×(B1)+195……(1)。
In ion exchange resin, have porous (porous type, the high pass) resin that has a plurality of pores in gel type resin with gelatine structure and the parent.In the present invention, the mixture that is preferably any or they of the concentrate of the extract that makes raw material tea and green-tea extract, refining thing contacts with the gel type cation exchanger resin.As this gel type cation exchanger resin, be preferably and have sulfonic cationic ion-exchange resin.Specifically, can enumerate with Diaion SK1B is SK series of representative etc., but is not limited thereto.The resin that uses porous type, high pass is during as cationic ion-exchange resin, and the non-polymer pyrocatechol is adsorbed on the resin, even wash then, yield also step-down, productivity significantly reduces.On the other hand, when using gel type resin, the loss of non-polymer pyrocatechol does not almost have.Herein, so-called " yield of non-polymer pyrocatechol " in the ion-exchange process is the catechol amount (a) [mg] that contains in the liquid after the resin treatment and with the ratio of the catechol amount (c) [mg] in the liquid before the catechol amount (b) [mg] in the water lotion of ion-exchange washing resin and the resin treatment, represents with following formula (2).
Yield [%]=(a+b)/c * 100 ... (2)
In addition, as the gel type cation exchanger resin, can use ion is any of the resin of H type as the resin of Na type with to ion, but when using the gel type cation exchanger resin of H type, the pH value of the liquid after the processing reduces, and promptly uses sodium acid carbonate to adjust the pH value, and the bitter taste of extract also strengthens, so consider that from the direction of the local flavor of extract the gel type cation exchanger resin of Na type is used in expectation.
The contact method of gel type cation exchanger resin and these raw materials can carry out with batch (-type), semibatch, semi continuous or continous way, but is filled into resin in the post and makes it continuously by being good.With regard to amount of resin,, preferably use 0.05～3 weight %, more preferably 0.5～2 weight % with respect to the extract of raw material tea, above-mentioned concentrate, refining thing or their mixed liquor.
Handle by this gel type cation exchanger resin, magnesium amount significantly (1.0mg/L is following) by increasing the Na ion and reducing the K ion, improves flavour when reducing, and non-polymer pyrocatechol concentration reduces hardly.Contain the non-polymer pyrocatechol that non-polymer promptly is in the state of being dissolved in the water in the purpose tea extract of the present invention, be 0.05～1.5 weight %, be preferably 0.06～1.5 weight %, 0.07～1.5 weight % more preferably, 0.08～1.5 weight % more preferably, 0.092～1.2 weight % more preferably, more preferably 0.11～0.9 weight % is preferably 0.12～0.9 weight % especially.Non-polymer pyrocatechol content in the tea extract is in this scope the time, and absorbability well, does not produce strong bitter taste, astringent taste, strong constringent beverage in can picked-up easy to manufacture effectively a large amount of non-polymer pyrocatechols, the body.The concentration of this non-polymer pyrocatechol can be adjusted by the concentrate of green-tea extract or the use level of refining thing.
On the other hand, the modulation of water-insoluble solid is preferably and above-mentioned the same the filtration.
In addition, use the extract utilize the tea that this method obtains, when obtaining container packed tea beverage of the present invention, non-polymer pyrocatechol content is preferably as required that dilution is above-mentioned scope.
In container packed tea beverage of the present invention, as the composition that in being derived from the composition of tea, on prescription, can add, can use antioxidant, spices, various ester class, organic acid, organic acid salt, inorganic acids, inorganic acid salt, inorganic salts, pigment, emulsifying agent, preservation material, flavoring, sweet taste material, acid flavoring, juice extraction thing class, vegetable extract class, nectar extract class, pH to adjust additives such as agent, stay in grade agent individually or simultaneously.
For example, as the sweet taste material, can enumerate granulated sugar, glucose, opposite sexization liquid sugar, glycyrrhizin, stevioside, Aspartame, FOS, galactooligosaccharide etc.As acid flavoring, except that the fruit juice that extracts from natural components, can also enumerate citric acid, tartaric acid, malic acid, lactic acid, fumaric acid, phosphoric acid.These acid flavorings preferably contain 0.01～0.5 weight %, more preferably contain 0.01～0.3 weight % in container packed tea beverage of the present invention.As inorganic acids, inorganic acid salt, can enumerate phosphoric acid, disodium hydrogen phosphate, sodium metaphosphate, polyphosphate sodium etc.These inorganic acids, inorganic acid salt preferably contain 0.01～0.5 weight %, more preferably contain 0.01～0.3 weight % in container packed tea beverage of the present invention.
As the employed container of container packed tea beverage of the present invention, can with common beverage similarly with common form provide with PETG be main composition forming containers (so-called PET bottle), metal can, with the compound paper container of metal forming or plastic sheeting, bottle etc.Said herein " container packed tea beverage " is meant that do not dilute just can drinking beverage.
In addition, container packed tea beverage of the present invention, for example be filled in the such container of metal can after, under can the situation of pasteurization, under the sterilization conditions of food hygiene law regulation, make.About PET bottle, the such container that can not distill sterilization of paper container, adopt in advance with above-mentioned equal sterilization conditions for example with high temperature short time sterilizations such as heat-exchangerss of the plate type after, be cooled to uniform temperature and recharge to the medium method of container.In addition, can be under aseptic condition other composition cooperated and be filled in the container of having filled.And, also can carry out under acid condition under aseptic condition, regulating behind the pasteurization pH value is got back to neutrality or under neutrallty condition behind the pasteurization under aseptic condition adjusting pH value get back to the operation of acidity etc.
Embodiment
The mensuration of pyrocatechol
Use the high-speed liquid chromatography spectrometer (model SCL-10Avp) of Shimadzu Seisakusho Ltd.'s system, octadecyl is installed is imported liquid chromatograph packed column L-post TM ODS (4.6mm φ * 250mm: juridical person's chemical substance evaluation study mechanism system), in column temperature is under 35 ℃, utilizes gradient method to filter then the mensuration of carrying out pyrocatechol with the beverage of the container of packing into of distilled water diluting with filter (0.8 μ m).Mobile phase A liquid is the distilled water solution that contains 0.1mol/L acetate, and B liquid is the acetonitrile solution that contains 0.1mol/L acetate, with flow 1.0mL/ minute liquor charging.In addition, gradient condition is as follows.
Time A liquid B liquid
0 minute 97% 3%
5 minutes 97% 3%
37 minutes 80% 20%
43 minutes 80% 20%
43.5 minutes 0% 100%
48.5 minutes 0% 100%
In the sample injection rate is that 10 μ L, UV detector wavelength are to carry out under the condition of 280nm.
The mensuration of magnesium density
Utilize the ICP luminescence analysis.Used the system SP1200A of SEIKO society.
Particle diameter is the mensuration of the water-insoluble solid amount of 0.2～0.8 μ m
With the aperture is that Millipore society system " Omnipore " membrane filter of 0.2 μ m attract to filter with the aperture to be the beverage 100g that Japan's filter paper system (ADVANTEC) cellulose mixed esters type membrane filter of 0.8 μ m filters, to be calculated by the initial stage absolute dry weight amount of filter and the difference of the absolute dry weight amount after the filtration.Filter is at 105 ℃ down after dry 3 hours, puts in the drier of room temperature cold 1 hour and asks the constant value.
Sediment during preservation, the evaluation of precipitation
Utilize to quicken to preserve to test and carry out.Container packed tea beverage is stored in 55 ℃ the insulating box, uses the visual valuation outward appearance after five days.
The evaluation of sediment, precipitation:
One: do not produce sediment, precipitation
±: only produce little sediment but just disappear immediately when shaking beverage in the container
+: produce a spot of little sediment, precipitation
++: produce a large amount of big sediment, precipitation
The evaluation of flavour:
◎: fine
*: bad
Embodiment 1
The green tea 135g that Miyazaki is produced adds among the ion exchange water 4kg that is heated to 65 ℃ and extracted 5 minutes, then, removes tealeaves from extract, with below the cools down to 25 ℃.Then utilize flannelette to remove by filter sediment or floating material in the extract, at normal temperatures, liquid is fed filled in the post of cationic ion-exchange resin (Diaion SK1B).The amount of resin with respect to final beverage product, is 0.2 weight %.Then, filter this extract with disk moldeed depth filter (ZetaPlus 10C).On the other hand, concentrate (Mitsui agricultural (strain) " Polyphenon the HG ") 100g of commercially available green-tea extract is distributed among the 99.5 weight % ethanol 630g, with behind 10 minutes water 270g that drip, carry out slaking in 30 minutes, with No. two filter paper and aperture is that the filter paper of 0.2 μ m filters, add and carry out freeze-driedly after water 200mL decompression concentrates, obtain the thing of re-refining.This thing of re-refining is added among the previous extract 2900g, make that non-polymer catechol concentration is 0.18 weight % under the goods state, adjusting pH value with sodium acid carbonate is 6.4 to be diluted to 8000g afterwards, carries out the UHT sterilization and is filled in the PET bottle.The analysis result of this beverage and sediment, precipitation, flavour evaluation result are shown in Table 1.
Embodiment 2
Under condition similarly to Example 1, obtained the flannelette filtered fluid of green tea extractive liquor.With the concentrate of the commercially available green-tea extract of under condition similarly to Example 1, having re-refined and the material that obtains add among this flannelette filtered fluid 2900g, make that non-polymer catechol concentration is 0.18 weight % under the goods state, at normal temperatures, liquid is fed to the post of having filled cationic ion-exchange resin (Diaion SK1B).The amount of resin with respect to final beverage product, is 0.5 weight %.(Zeta Plus 10C) filters resulting liquid with disk moldeed depth filter, and it is 6.4 to be diluted to 8000g afterwards that pH value is adjusted with sodium acid carbonate in dilution back, carries out the UHT sterilization and is filled in the PET bottle.The analysis result of this beverage and sediment, precipitation, flavour evaluation result are shown in Table 1.
Embodiment 3
Under condition similarly to Example 2, obtained with cationic ion-exchange resin handle green tea extractive liquor and green-tea extract the thing of re-refining mixed liquor and liquid.The amount of resin with respect to final beverage product, is 0.5 weight %.Resulting liquid is adjusted the pH value with sodium acid carbonate after dilution be to be diluted to 8000g after 6.4, carries out the UHT sterilization and be filled in the PET bottle.The analysis result of this beverage and sediment, precipitation, flavour evaluation result are shown in Table 1.
Embodiment 4
The green tea 135g that Shizuoka is produced adds among the ion exchange water 4kg that has been heated to 75 ℃ and extracted 5 minutes, then, removes tealeaves from extract, with cools down to below 25 ℃.Utilize flannelette to remove by filter sediment or floating material in the extract, mixed the thing of re-refining of the concentrate of green-tea extract similarly to Example 2.At normal temperatures, this liquid is fed to the post of having filled cationic ion-exchange resin (Diaion SK1B).The amount of resin with respect to final beverage product, is 0.05 weight %.Then, (Zeta Plus10C) filters this extract with disk moldeed depth filter, and it is 6.4 to be diluted to 8000g afterwards that pH value is adjusted with sodium acid carbonate in dilution back, carries out the UHT sterilization and is filled in the PET bottle.The analysis result of this beverage and sediment, precipitation, flavour evaluation result are shown in Table 1.
Embodiment 5
Under condition similarly to Example 1, obtained the flannelette filtered fluid of green tea extractive liquor.The concentrate (Mitsui agricultural (strain) " Polyphenon HG ") of commercially available green-tea extract is added among this flannelette filtered fluid 2900g, make that non-polymer catechol concentration is 0.18 weight % under the goods state, at normal temperatures, liquid is fed to the post of having filled cationic ion-exchange resin (Diaion SK1B).The amount of resin with respect to final beverage product, is 1.4 weight %.(Zeta Plus 10C) filters resulting liquid with disk moldeed depth filter, and it is 6.4 to be diluted to 8000g afterwards that pH value is adjusted with sodium acid carbonate in dilution back, carries out the UHT sterilization and is filled in the PET bottle.The analysis result of this beverage and sediment, precipitation, flavour evaluation result are shown in Table 1.
Embodiment 6
Under condition similarly to Example 1, obtained the flannelette filtered fluid of green tea extractive liquor.At normal temperatures, this flannelette filtered fluid 2900g is fed to the post of having filled cationic ion-exchange resin (DiaionSK1B).The amount of resin with respect to final beverage product, is 0.2 weight %.Then, (Zeta Plus 10C) filters this extract with disk moldeed depth filter, be added under the condition similarly to Example 1 that concentrate to commercially available green-tea extract has carried out re-refining and material, make that non-polymer catechol concentration is 0.09 weight % under the goods state, adjusting pH value with sodium acid carbonate is 6.2 to be diluted to 8000g afterwards, carries out the UHT sterilization and is filled in the PET bottle.The analysis result of this beverage and sediment, precipitation, flavour evaluation result are shown in Table 1.
Embodiment 7
Under condition similarly to Example 1, obtained the flannelette filtered fluid of green tea extractive liquor.To under condition similarly to Example 1, the concentrate of commercially available green-tea extract have been carried out re-refining and material add among this solution 2900g, make that non-polymer catechol concentration is 0.12 weight % under the goods state, at normal temperatures, liquid is fed to the post of having filled cationic ion-exchange resin (Diaion SK1B).The amount of resin with respect to final beverage product, is 0.5 weight %.(Zeta Plus 10C) filters resulting liquid with disk moldeed depth filter, and it is 6.2 to be diluted to 8000g afterwards that pH value is adjusted with sodium acid carbonate in dilution back, carries out the UHT sterilization and is filled in the PET bottle.The analysis result of this beverage and sediment, precipitation, flavour evaluation result are shown in Table 1.
Comparative example 1
Under condition similarly to Example 1, obtained the flannelette filtered fluid of green tea extractive liquor.(Zeta Plus 10C) filters this liquid 2900g with disk moldeed depth filter, be added under the condition similarly to Example 1 that concentrate to commercially available green-tea extract has carried out re-refining and material, make that non-polymer catechol concentration is 0.18 weight % under the goods state, resulting liquid is adjusted the pH value with sodium acid carbonate after dilution be to be diluted to 8000g after 6.4, carries out the UHT sterilization and be filled in the PET bottle.The analysis result of this beverage and sediment, precipitation, flavour evaluation result are shown in Table 1.
Comparative example 2
Obtained under condition similarly to Example 1 that cationic ion-exchange resin (Diaion SK1B) has been handled green tea extractive liquor and liquid.The amount of resin with respect to final beverage product, is 0.5 weight %.Filter resulting liquid 2900g with disk moldeed depth filter (Zeta Plus 10C), add the concentrate (Mitsui agricultural (strain) " Polyphenon 70S ") of commercially available green-tea extract, make that non-polymer catechol concentration is 0.18 weight % under the goods state, it is 6.4 to be diluted to 8000g afterwards that pH value is adjusted with sodium acid carbonate in dilution back, carries out the UHT sterilization and is filled in the PET bottle.The analysis result of this beverage and sediment, precipitation, flavour evaluation result are shown in Table 1.
Comparative example 3
Under condition similarly to Example 1, obtained the flannelette filtered fluid of green tea extractive liquor.The concentrate (Mitsui agricultural (strain) " Polyphenon HG ") of commercially available green-tea extract is added among this solution 2900g, make that non-polymer catechol concentration is 0.06 weight % under the goods state, at normal temperatures, liquid is fed to the post of having filled cationic ion-exchange resin (Diaion SK1B).The amount of resin with respect to final beverage product, is 0.5 weight %.(Zeta Plus 10C) filters resulting liquid with disk moldeed depth filter, and it is 6.2 to be diluted to 8000g afterwards that pH value is adjusted with sodium acid carbonate in dilution back, carries out the UHT sterilization and is filled in the PET bottle.The analysis result of this beverage and sediment, precipitation, flavour evaluation result are shown in Table 1.
Comparative example 4～5
Except that the stir mode that extracts, under condition similarly to Example 1, obtained the flannelette filtered fluid of green tea extractive liquor.The material that under condition similarly to Example 1 the concentrate of commercially available green-tea extract has been carried out re-refining added to disk moldeed depth filter (Zeta Plus10C) filter this liquid and among the liquid 2900g that obtains, make that non-polymer catechol concentration is 0.18 weight % under the goods state, adjusting pH value with sodium acid carbonate is 6.4 to be diluted to 8000g afterwards, carries out the UHT sterilization and is filled in the PET bottle.The analysis result of this beverage and sediment, precipitation, flavour evaluation result are shown in Table 1.
Comparative example 6
Under condition similarly to Example 1, obtained the flannelette filtered fluid of green tea extractive liquor.The material that under condition similarly to Example 1 the concentrate of commercially available green-tea extract has been carried out re-refining added to disk moldeed depth filter (Zeta Plus 60C) filter this liquid and among the liquid 2900g that obtains, make that non-polymer catechol concentration is 0.18 weight % under the goods state, resulting liquid is adjusted the pH value with sodium acid carbonate after dilution be to be diluted to 8000g after 6.4, carries out the UHT sterilization and be filled in the PET bottle.The analysis result of this beverage and sediment, precipitation, flavour evaluation result are shown in Table 1.
Comparative example 7
Under condition similarly to Example 1, obtained the flannelette filtered fluid of green tea extractive liquor.At normal temperatures, 14 a weight % with this liquid feeds to the post of having filled cationic ion-exchange resin (DiaionSK1B).The amount of resin with respect to final beverage product, is 0.05 weight %.Then, lump together with the extract of the 86 weight % that do not carry out ion-exchange treatment, (Zeta Plus 10C) filters with disk moldeed depth filter.To under condition similarly to Example 1, the concentrate of commercially available green-tea extract be re-refined and material add among the resulting filtered fluid 2900g, make that non-polymer catechol concentration is 0.18 weight % under the goods state, resulting liquid is adjusted the pH value with sodium acid carbonate after dilution be to be diluted to 8000g after 6.4, carries out the UHT sterilization and be filled in the PET bottle.The analysis result of this beverage and sediment, precipitation, flavour evaluation result are shown in Table 1.
Table 1
| (A) non-polymer catechol [mg/L] | (B) Mg concentration [mg/L] | (C) the water-insoluble solid [mg/L] of 0.2～0.8 μ m | Having or not of the scope of formula (1) | 55 ℃ of sediment, precipitations after preserving in-5 days | Flavour | |
| Embodiment 1 | 1836 | 2.4 | 48 | ○ | — | ◎ |
| Embodiment 2 | 1814 | 0.3 | 54 | ○ | — | ◎ |
| Embodiment 3 | 1775 | 0.2 | 85 | ○ | — | ◎ |
| Embodiment 4 | 1798 | 6.2 | 40 | ○ | — | ◎ |
| Embodiment 5 | 1787 | 0.3 | 114 | ○ | ± | ◎ |
| Embodiment 6 | 953 | 1.2 | 35 | ○ | — | ◎ |
| Embodiment 7 | 1256 | 0.0 | 36 | ○ | — | ◎ |
| Comparative example 1 | 1845 | 8.9 | 58 | × | ++ | ◎ |
| Comparative example 2 | 1763 | 0.1 | 14 | × | — | × |
| Comparative example 3 | 702 | 0.1 | 155 | × | + | ◎ |
| Comparative example 4 | 1720 | 8.0 | 48 | × | + | ◎ |
| Comparative example 5 | 1740 | 7.2 | 50 | × | + | ◎ |
| Comparative example 6 | 1670 | 7.6 | 19 | × | —± | × |
| Comparative example 7 | 1810 | 6.6 | 72 | × | + | ◎ |
In embodiment 1～4,6 and 7, quickening not observe sediment, precipitation after the preservation, flavour is also good.In embodiment 5, only produce little sediment but disappearance immediately, no problem in appearance, flavour is also good.Relative therewith, in comparative example 1, produce a large amount of big sediment, precipitation.In addition, in comparative example 2 and 6,, feel the artificial bitter taste as stimulating and be unsuitable for drinking though do not produce sediment, precipitation.In addition, in comparative example 3～5 and 7, sediment, precipitation have been produced.
Embodiment 8
The green tea 135g that Miyazaki is produced is added among the ion exchange water 4kg that has been heated to 65 ℃ and extracted 5 minutes, then, removes tealeaves from extract, with cools down to below 25 ℃.Then utilize flannelette to remove by filter sediment or floating material in the extract, at normal temperatures, liquid is passed into has filled in the post of gel type cation exchanger resin (Diaion SK1B) 37.5g.Then, filter this extract with disk moldeed depth filter (Zeta Plus 10C).On the other hand, concentrate (Mitsui agricultural (strain) " the PolyphenonHG ") 100g of commercially available green-tea extract is distributed among the 99.5 weight % ethanol 630g, with behind 10 minutes water 270g that drip, carry out slaking in 30 minutes, with No. two filter paper and aperture is that the filter paper of 0.2 μ m filters, add and carry out freeze-driedly after water 200mL decompression concentrates, obtained the thing of re-refining.This thing of re-refining is added in the previous extract.With the analysis result of the tea extract that obtains like this and cooperated the sediment of the green tea beverage of this extract 30 weight %, precipitation evaluation result to be shown in Table 2.
Embodiment 9
Under condition similarly to Example 8, obtained the flannelette filtered fluid of green tea extractive liquor.To under condition similarly to Example 8, the concentrate of commercially available green-tea extract have been carried out re-refining and material add in this liquid, at normal temperatures, liquid is passed into has filled in the post of gel type cation exchanger resin (Diaion SK1B) 75g.The amount of resin with respect to final beverage product, is 0.5 weight %.(Zeta Plus 10C) filters resulting liquid with disk moldeed depth filter.With the analysis result of the tea extract that obtains like this and cooperated the sediment of the green tea beverage of this extract 30 weight %, precipitation evaluation result to be shown in Table 2.
Embodiment 10
The green tea 135g that Shizuoka is produced is added among the ion exchange water 3.4kg that has been heated to 75 ℃ and extracted 5 minutes, then, removes tealeaves from extract, with cools down to below 25 ℃.Then, utilize flannelette to remove by filter sediment or floating material in the extract, mixed the thing of re-refining of the concentrate of green-tea extract similarly to Example 9.At normal temperatures, this liquid is passed in the post of having filled gel type cation exchanger resin (Diaion SK1B) 75g, uses disk moldeed depth filter (Zeta Plus 10C) to filter then.With the analysis result of the tea extract that obtains like this and cooperated the sediment of the green tea beverage of this extract 30 weight %, precipitation evaluation result to be shown in Table 2.
Comparative example 8
Under condition similarly to Example 8, obtained the flannelette filtered fluid of green tea extractive liquor.(Zeta Plus 10C) filters this liquid with disk moldeed depth filter, added under condition similarly to Example 8 that concentrate to commercially available green-tea extract has carried out re-refining and material.With the analysis result of the tea extract that obtains like this and cooperated the sediment of the green tea beverage of this extract 30 weight %, precipitation evaluation result to be shown in Table 2.
Comparative example 9
Under condition similarly to Example 8, obtained the flannelette filtered fluid of green tea extractive liquor.The concentrate (Mitsui agricultural (strain) " Polyphenon HG ") of commercially available green-tea extract is added in this liquid, at normal temperatures, liquid is passed into has filled in the post of gel type cation exchanger resin (DiaionSK1B) 37.5g.With the analysis result of the tea extract that obtains like this and cooperated the sediment of the green tea beverage of this extract 30 weight %, precipitation evaluation result to be shown in Table 2.
Comparative example 10
Under condition similarly to Example 8, obtained the flannelette filtered fluid of green tea extractive liquor.Then at normal temperatures, liquid is passed into has filled in the post of porous type cationic ion-exchange resin (Diaion PK208) 37.5g.Then, (Zeta Plus 10C) filters this extract with disk moldeed depth filter, added under condition similarly to Example 8 that concentrate to commercially available green-tea extract has carried out re-refining and material.With the analysis result of the tea extract that obtains like this and cooperated the sediment of the green tea beverage of this extract 30 weight %, precipitation evaluation result to be shown in Table 2.
Table 2
| 0.2 the water-insoluble solid [mg/L] of～0.8 μ m | Mg concentration [mg/L] | Non-polymer catechol [mg/L] | The yield [%] of the non-polymer catechol in the cationic ion-exchange resin treatment process | 55 ℃ of sediment, precipitations after preserving in-5 days | |
| Embodiment 8 | 97 | 5.0 | 5692 | 98.9 | — |
| Embodiment 9 | 109 | 0.9 | 5442 | 98.5 | — |
| Embodiment 10 | 158 | 0.8 | 5360 | 99.5 | — |
| Comparative example 8 | 95 | 25.5 | 5550 | — | ++ |
| Comparative example 9 | 207 | 0.9 | 5460 | 98.5 | ++ |
| Comparative example 10 | 96 | 5.2 | 4982 | 88.8 | — |
The evaluation of sediment, precipitation:
-: do not produce sediment, precipitation
±: only produce little sediment but just disappear immediately when shaking beverage in the container
+: produce a spot of little sediment, precipitation
++: produce a large amount of big sediment, precipitation
In embodiment 8～10, quickening not observe sediment, precipitation after the preservation, flavour is also good.Relative therewith, in comparative example 8～9, produce a large amount of big sediment, precipitation.In addition, in comparative example 10, though do not produce sediment, precipitation, the yield of the non-polymer catechol in the cationic ion-exchange resin treatment process reduces significantly.
Claims (9)
1. container packed tea beverage, it comprises following composition (A), (B) and (C):
(A) non-polymer pyrocatechol 0.05～0.5 weight %,
(B) magnesium,
(C) particle diameter is the water-insoluble solid of 0.2～0.8 μ m,
The content mg/L of composition (B) and composition (C) is in following formula (1)
20<(C)<-13×(B)+140……(1)
Scope in.
2. container packed tea beverage as claimed in claim 1 is characterized in that: be extract and the concentrate of green-tea extract or the container packed tea beverage of refining thing that has cooperated the raw material tea that is selected from green tea, semi-fermented tea and the fermented tea.
3. container packed tea beverage as claimed in claim 2 is characterized in that: when the extract that cooperates described raw material tea and described concentrate or refining thing, the mixture of any or they in them is contacted with cationic ion-exchange resin.
4. container packed tea beverage as claimed in claim 3 is characterized in that: with respect to the extract of described raw material tea, described concentrate or refining thing or their mixed liquor, use the cationic ion-exchange resin of 0.05～3 weight %.
5. as claim 3 or 4 described container packed tea beverages, it is characterized in that: cationic ion-exchange resin is the gel type cation exchanger resin.
6. as each described container packed tea beverage in the claim 1～5, it is characterized in that: be green tea beverage.
7. the autofrettage of a tea extract, be to be selected from green tea, the autofrettage of the tea extract that the extract of the raw material tea in semi-fermented tea and the fermented tea and the concentrate of green-tea extract or refining thing mix, it is characterized in that: the mixed liquor of the extract of this raw material tea and any or they in this concentrate or the refining thing is contacted with the gel type cation exchanger resin, non-polymer pyrocatechol content is 0.05～1.5 weight %, water-insoluble solid amount (C1) mg/L that is derived from raw material tealeaves of magnesium density (B1) mg/L and 0.2～0.8 μ m satisfies the relation of following formula (3)
20<(C1)<-7.8×(B1)+195……(3)
8. the autofrettage of tea extract as claimed in claim 7 is characterized in that: with respect to extract, this concentrate or refining thing or their mixed liquor of this raw material tea, use the gel type cation exchanger resin of 0.05～3 weight %.
9. the autofrettage of container packed tea beverage as claimed in claim 1 is characterized in that: cooperate the tea extract that utilizes claim 7 or 8 described autofrettages to obtain.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002372318 | 2002-12-24 | ||
| JP372318/2002 | 2002-12-24 | ||
| JP14302/2003 | 2003-01-23 | ||
| JP327197/2003 | 2003-09-19 |
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| WO2013094494A1 (en) * | 2011-12-21 | 2013-06-27 | 花王株式会社 | Method for producing purified tea extract |
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