WO2019130724A1 - キトサンを含有する非発酵茶飲料または半発酵茶飲料 - Google Patents
キトサンを含有する非発酵茶飲料または半発酵茶飲料 Download PDFInfo
- Publication number
- WO2019130724A1 WO2019130724A1 PCT/JP2018/038021 JP2018038021W WO2019130724A1 WO 2019130724 A1 WO2019130724 A1 WO 2019130724A1 JP 2018038021 W JP2018038021 W JP 2018038021W WO 2019130724 A1 WO2019130724 A1 WO 2019130724A1
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- WO
- WIPO (PCT)
- Prior art keywords
- beverage
- chitosan
- tea
- fermented tea
- tea beverage
- Prior art date
Links
- 235000013361 beverage Nutrition 0.000 title claims abstract description 86
- 229920001661 Chitosan Polymers 0.000 title claims abstract description 85
- 235000013616 tea Nutrition 0.000 title claims abstract description 82
- 235000019225 fermented tea Nutrition 0.000 title claims abstract description 24
- 244000269722 Thea sinensis Species 0.000 claims description 47
- 238000000034 method Methods 0.000 claims description 23
- 238000002156 mixing Methods 0.000 claims description 17
- 235000009569 green tea Nutrition 0.000 claims description 8
- 235000006468 Thea sinensis Nutrition 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 235000020333 oolong tea Nutrition 0.000 claims description 4
- 235000013305 food Nutrition 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000000284 extract Substances 0.000 description 10
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- 238000006116 polymerization reaction Methods 0.000 description 7
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- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 6
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- 238000011049 filling Methods 0.000 description 3
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- MSWZFWKMSRAUBD-IVMDWMLBSA-N 2-amino-2-deoxy-D-glucopyranose Chemical compound N[C@H]1C(O)O[C@H](CO)[C@@H](O)[C@@H]1O MSWZFWKMSRAUBD-IVMDWMLBSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
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- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
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- SQDAZGGFXASXDW-UHFFFAOYSA-N 5-bromo-2-(trifluoromethoxy)pyridine Chemical compound FC(F)(F)OC1=CC=C(Br)C=N1 SQDAZGGFXASXDW-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 241000209507 Camellia Species 0.000 description 1
- 229920001287 Chondroitin sulfate Polymers 0.000 description 1
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 description 1
- 241000238424 Crustacea Species 0.000 description 1
- 239000004278 EU approved seasoning Substances 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 239000002211 L-ascorbic acid Substances 0.000 description 1
- 235000000069 L-ascorbic acid Nutrition 0.000 description 1
- JVTAAEKCZFNVCJ-UHFFFAOYSA-M Lactate Chemical compound CC(O)C([O-])=O JVTAAEKCZFNVCJ-UHFFFAOYSA-M 0.000 description 1
- OVRNDRQMDRJTHS-UHFFFAOYSA-N N-acelyl-D-glucosamine Natural products CC(=O)NC1C(O)OC(CO)C(O)C1O OVRNDRQMDRJTHS-UHFFFAOYSA-N 0.000 description 1
- OVRNDRQMDRJTHS-FMDGEEDCSA-N N-acetyl-beta-D-glucosamine Chemical compound CC(=O)N[C@H]1[C@H](O)O[C@H](CO)[C@@H](O)[C@@H]1O OVRNDRQMDRJTHS-FMDGEEDCSA-N 0.000 description 1
- MBLBDJOUHNCFQT-LXGUWJNJSA-N N-acetylglucosamine Natural products CC(=O)N[C@@H](C=O)[C@@H](O)[C@H](O)[C@H](O)CO MBLBDJOUHNCFQT-LXGUWJNJSA-N 0.000 description 1
- 244000131316 Panax pseudoginseng Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
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- 239000012670 alkaline solution Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000003579 anti-obesity Effects 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000019606 astringent taste Nutrition 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 150000001765 catechin Chemical class 0.000 description 1
- ADRVNXBAWSRFAJ-UHFFFAOYSA-N catechin Natural products OC1Cc2cc(O)cc(O)c2OC1c3ccc(O)c(O)c3 ADRVNXBAWSRFAJ-UHFFFAOYSA-N 0.000 description 1
- 235000005487 catechin Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- RQFQJYYMBWVMQG-IXDPLRRUSA-N chitotriose Chemical compound O[C@@H]1[C@@H](N)[C@H](O)O[C@H](CO)[C@H]1O[C@H]1[C@H](N)[C@@H](O)[C@H](O[C@H]2[C@@H]([C@@H](O)[C@H](O)[C@@H](CO)O2)N)[C@@H](CO)O1 RQFQJYYMBWVMQG-IXDPLRRUSA-N 0.000 description 1
- 229940059329 chondroitin sulfate Drugs 0.000 description 1
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- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000015872 dietary supplement Nutrition 0.000 description 1
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 230000037406 food intake Effects 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 235000003599 food sweetener Nutrition 0.000 description 1
- 235000015203 fruit juice Nutrition 0.000 description 1
- 235000013376 functional food Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 229940093915 gynecological organic acid Drugs 0.000 description 1
- 239000008233 hard water Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF
- A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Preparation or treatment thereof
- A23L2/52—Adding ingredients
- A23L2/62—Clouding agents; Agents to improve the cloud-stability
-
- 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
-
- 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
- A23F3/16—Tea extraction; Tea extracts; Treating tea extract; Making instant tea
-
- 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
- A23F3/16—Tea extraction; Tea extracts; Treating tea extract; Making instant tea
- A23F3/163—Liquid or semi-liquid tea extract preparations, e.g. gels or liquid extracts in solid capsules
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF
- A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Preparation or treatment thereof
- A23L2/38—Other non-alcoholic beverages
- A23L2/382—Other non-alcoholic beverages fermented
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF
- A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Preparation or treatment thereof
- A23L2/52—Adding ingredients
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
Definitions
- the present invention relates to non-fermented tea beverages or semi-fermented tea beverages containing chitosan. More specifically, the tea beverage according to the present invention relates to a beverage composition containing chitosan having a specific molecular weight and in which the occurrence of turbidity is suppressed.
- Non-patent Document 1 calcium absorption promoting effect
- Non-patent document 2 anti-obesity action
- Patent Document 1 proposes that a decrease in pH be suppressed by blending chitosan in a weakly acidic beverage having a pH of 4.6 or more.
- Patent Document 2 describes that by using chitosan in combination with chondroitin sulfate, a beverage in which astringency of chitosan is suppressed can be obtained.
- Patent Document 3 describes that, by using chitosan having a specific molecular weight distribution, a chitosan-containing beverage which is stable even in the neutral to alkaline region is obtained.
- An object of the present invention is to suppress the occurrence of turbidity in a tea beverage containing chitosan.
- the present inventors have intensively studied to solve the above problems, and as a result, when chitosan, which is a naturally occurring material, is blended in a tea beverage, it is a semi-ferment that does not completely ferment non-fermented tea or tea leaves that do not ferment tea leaves. In fermented tea, it has been found that turbidity does not easily occur. As a result of further investigation, regarding the molecular weight and blending amount of chitosan blended in non-fermented tea and semi-fermented tea, it is important to blend chitosan with a specific molecular weight at a specific amount or less in order to suppress turbidity of tea beverages It has been found that the present invention has been completed.
- the present invention includes the following aspects.
- a method for producing a non-fermented tea beverage or a semi-fermented tea beverage which comprises blending chitosan having a molecular weight of 7 kDa or less at a concentration of 200 ppm or less.
- a method for suppressing the occurrence of turbidity in a non-fermented tea beverage or semi-fermented tea beverage which comprises blending chitosan having a molecular weight of 7 kDa or less at a concentration of 200 ppm or less.
- the generation of turbidity can be effectively suppressed for a tea beverage containing chitosan.
- FIG. 1 is an appearance photograph of the beverage sample (Shoryu tea) of Experiment 1 in which no turbidity ( ⁇ , left) and an apparent turbidity (++, right).
- the present invention relates to a tea beverage containing a specific amount of chitosan of a specific molecular weight.
- Chitosan The tea beverage according to the present invention contains chitosan of a specific molecular weight.
- Chitosan is a linear polysaccharide and is a 1,4-polymer of glucosamine.
- the molecular formula of chitosan is (C 6 H 11 NO 4 ) n , and the molecular weight may reach several hundred thousand depending on the degree of polymerization. In the present specification, regardless of the molecular weight and the degree of polymerization, any 1,4-polymer of glucosamine is referred to as chitosan.
- the molecular weight of chitosan blended in the tea beverage according to the present invention is 7 kDa or less.
- the molecular weight of chitosan may be 5 kDa or less, and may be 3 kDa or less or 2 kDa or less. With such molecular weight, chitosan may be used in the form of free amine or as a salt with a suitable acid.
- n in the above formula is 0 to 50, more preferably 1 to 40, and still more preferably 2 to 30.
- the form of the salt is not particularly limited as long as it is an edible salt, but examples of salts with organic acids include acetate, lactate, citrate and the like, and salts with inorganic acids such as hydrochloride And sulfates.
- the preferred salt is the hydrochloride salt.
- chitosan In general, chitosan is difficult to dissolve in water, depending on its degree of polymerization, and is particularly difficult to dissolve in neutral to alkaline solutions. Therefore, in the case of blending chitosan into container-packed beverages, it is technically difficult not only to blend chitosan uniformly into a solution but also to prevent turbidity or precipitation with time.
- the components contained in the beverage and chitosan may associate with each other to cause cloudiness or precipitation, and in order to produce a chitosan-blended beverage with excellent stability, what kind of beverage should be blended with chitosan? It is necessary to do technical development accordingly.
- a tea beverage having excellent stability can be obtained by blending chitosan having a specific molecular weight in a specific amount into the tea beverage.
- Chitosan can be obtained mainly by deacetylating chitin obtained from the exoskeleton of crustaceans such as crabs and shrimps. Conversion of chitin to chitosan (deacetylation reaction) may not proceed completely, and some N-acetylglucosamine may be contained on the sugar chain, and a commercially available chitosan product has a percentage of deacetylation (% DA Is often shown. The% DA of commercially available chitosan is often 60 to 100%.
- the blending amount of chitosan to the tea beverage is 200 ppm or less.
- Chitosan is practically harmless as a food and almost tasteless and odorless, but when the blending amount of chitosan exceeds 200 ppm, the occurrence of turbidity caused by chitosan etc. is remarkable even in non-fermented tea and semi-fermented tea turn into.
- the concentration of chitosan in the tea beverage according to the present invention is 1 to 80 ppm, more preferably 5 to 60 ppm.
- chitosan can be added at an appropriate step of producing various beverages.
- the addition method include a method of adding to a raw material in advance, a method of adding a raw material component in a process of preparing a raw material component, and a method of dissolving the prepared component in water and then adding it.
- the addition of chitosan may be performed before or after sterilization treatment of the beverage.
- the beverage according to the present invention relates to, among other tea beverages, non-fermented tea or semi-fermented tea.
- the tea beverage according to the present invention can be obtained by blending a tea extract.
- a tea extract is obtained by extracting a raw material tea leaf with warm water, and removing an extraction residue from the tea extract.
- the tea beverage according to the present invention contains a tea extract obtained from leaves of a tree belonging to the camellia plant (Scientific name: Camellia sinensis) or a processed product thereof, and the tea includes semi-fermented tea and / or Or non-fermented tea is used. If the raw material tea leaf is semi-fermented tea or non-fermented tea, the variety of tea leaf, place of production, picking period, picking method, cultivation method, etc.
- non-fermented tea for example, green teas such as sencha, gyokuro, tea and the like
- semi-fermented tea for example, iron green tea such as iron kannon and golden ginseng (blue tea) can be preferably mentioned.
- the extraction can be performed by a known method using an extraction device such as a kneader, and specifically, 20 to 100 times the amount of the raw material tea leaves, 60 to 100 ° C. (preferably 70 to 90 ° C.)
- the extraction may be carried out under normal pressure or under pressure by stirring with extraction water of about 1 minute to 20 minutes, if necessary, once to several times.
- an ascorbic acid-containing aqueous solution, pH adjustment water, and the like can be exemplified.
- an antioxidant such as L-ascorbic acid or a pH adjuster such as sodium hydrogencarbonate may be added to the tea extract.
- the tea extract obtained by extracting the raw material tea leaves may be subjected to filtration or the like to remove the extraction residue from the tea extract, and if necessary, centrifugation or the like is performed to remove fine powder.
- the conditions for the centrifugation may be selected appropriately in consideration of the clarity of the tea beverage finally obtained. In order to carry out centrifugation, it is preferable to cool the extract to about 5 to 40.degree. Cooling and centrifugation increase the clarity of the finally obtained tea beverage.
- the tea beverage according to the present invention in a preferred embodiment, has a pH (hydrogen ion concentration index) of 3.5 to 7.5.
- a pH hydrogen ion concentration index
- the pH of a tea beverage decreases, the liquid color of the tea beverage may change, and it is considered to be in a weakly acidic to neutral pH region, but from the viewpoint of microbe control It is considered preferable to adjust.
- the pH of the tea beverage according to the present invention is 4.6 to 7.0, and the pH may be 5.2 to 6.5.
- the pH of the beverage may be adjusted by a known method, for example, adding a pH adjuster such as ascorbic acid, citric acid, potassium carbonate, sodium bicarbonate (sodium hydrogen carbonate), sodium hydroxide or disodium hydrogen phosphate Can be done by a pH adjuster such as ascorbic acid, citric acid, potassium carbonate, sodium bicarbonate (sodium hydrogen carbonate), sodium hydroxide or disodium hydrogen phosphate Can be done by a pH adjuster such as ascorbic acid, citric acid, potassium carbonate, sodium bicarbonate (sodium hydrogen carbonate), sodium hydroxide or disodium hydrogen phosphate Can be done by a pH adjuster such as ascorbic acid, citric acid, potassium carbonate, sodium bicarbonate (sodium hydrogen carbonate), sodium hydroxide or disodium hydrogen phosphate Can be done by a pH adjuster such as ascorbic acid, citric acid, potassium carbonate, sodium bicarbonate (sodium hydrogen carbonate), sodium hydroxide or disodium hydrogen phosphate
- the beverage according to the present invention can be suitably used, for example, as a food for obtaining a function attributed to chitosan or a tea extract.
- the beverage according to the present invention may be a food for specific health, a nutritive function food, a food for geriatrics, a special purpose food, a functional food, a health supplement (supplement).
- the raw materials of the present invention may be mixed with a predetermined amount of the raw material to prepare the composition according to a known method of manufacturing a food composition, It may be prepared by adding the chitosan of the present invention to a predetermined amount of a ready-made known food composition. There is no particular limitation on the timing and method of addition.
- the beverage according to the present invention can be taken orally by an appropriate method depending on the form.
- intake is used as what includes all the aspect of ingestion, taking, or drinking.
- the intake amount of the beverage of the present invention may be appropriately set according to the form, the intake method, the purpose of use, the age, weight and condition of the recipient.
- a sweetener, an acidulant, fruit juice, various additives, and the like may be added to the beverage of the present invention in addition to the above-mentioned catechins, as long as the effects of the present invention are not impaired.
- various additives include flavors, vitamins, dyes, antioxidants, emulsifiers, preservatives, seasonings, extracts, pH adjusters, quality stabilizers and the like.
- the beverage of the present invention may be a carbonated beverage containing carbon dioxide gas, but is preferably a non-carbonated beverage.
- the drink of this invention can also be used as an alcoholic drink, it is preferable to set it as a non-alcoholic drink.
- the non-alcoholic beverage refers to a beverage in which the alcohol concentration in the beverage is less than 1%.
- the soluble solid concentration of the beverage of the present invention can be evaluated by Brix value obtained using a sugar scale meter or refractometer, and the Brix value is a refractive index measured at 20 ° C.
- the concentration of soluble solids in a solution is represented by the value converted to the weight / mass percentage of sucrose solution based on the conversion table of the International Committee for the Analysis of Sugar Methods). The unit is displayed as "° Bx", "%" or "degree”.
- the beverage of the present invention has a Brix value of 0 to 20% in a preferred embodiment, but the Brix value is more preferably 10% or less, and may be 3% or less or 2% or less.
- the tea beverage according to the present invention is suitable to be applied to a relatively light-colored beverage because turbidity does not easily occur with time.
- the color of the beverage can be evaluated using a light transmittance color difference meter or the like.
- the transparency of the beverage can be quantified, for example, by a known method of measuring the turbidity of the liquid.
- the characteristic of a drink can be quantified using a color difference meter or the like.
- the turbidity of the beverage according to the present invention is 300 or less, and may be 100 or less or 50 or less.
- the color difference meter can evaluate the ⁇ E value, the Lab value, etc. of the transmitted light when measured with pure water as a reference.
- the ⁇ E value of the beverage according to the present invention based on pure water is 100 or less, and may be 50 or less, 40 or less, or 30 or less.
- the beverage of the present invention is a beverage which hardly precipitates even when stored at normal temperature for a long time. That is, the beverage according to the present invention is suitably provided as a container-packed beverage because precipitation with time is suppressed and the appearance of the beverage can be uniformly maintained over a long period of time.
- the container-packed beverage as used herein refers to a beverage contained in a resin-made container such as a PET container, a can, a bottle, a container such as a paper container.
- the beverage according to the present invention is preferably a container-packed beverage filled in a transparent container in one aspect, because precipitation of the beverage over time can be suppressed.
- the container-packed beverage according to the present invention is manufactured by, for example, heating and sterilizing the preparation liquid obtained in the preparation step and then filling the container for long-term storage at normal temperature.
- the heat sterilization treatment may be performed according to the food sanitation method.
- UHT sterilization for example, the preparation liquid is held at 100 to 150 ° C. for 1 second to several tens of seconds in a resin container such as a PET bottle) )It can be performed.
- the invention can also be understood as a method of producing a beverage.
- the beverage of the present invention contains chitosan having a specific molecular weight, but the content of chitosan is adjusted to a specific range.
- the method for producing a beverage according to the present invention may include the steps of blending a predetermined component to prepare a beverage, adjusting the pH of the beverage, and filling the container.
- the container-packed beverage of the present invention can be manufactured using a conventionally known method. Those skilled in the art can appropriately design the blending method, the sterilization method if necessary, and the conditions of the container filling method.
- the present invention can also be understood as a method for controlling turbidity in tea beverages.
- the beverage of the present invention contains chitosan having a specific molecular weight, but the content of chitosan is adjusted to a specific range.
- it is a method of suppressing the occurrence of turbidity in a tea beverage, which comprises blending chitosan having a molecular weight of 7 kDa or less at a concentration of 200 ppm or less into a non-fermented tea beverage or a semi-fermented tea beverage.
- chitosan oligosaccharide degree of polymerization: 2 to 8, average molecular weight: not more than 1.6 kDa
- sterile water was diluted with sterile water to prepare a 1% by weight chitosan solution.
- three types of commercially available tea beverages non-fermented tea, semi-fermented tea, fermented tea
- were filtered to remove insoluble solids and a base tea beverage was prepared.
- Non-fermented tea green tea
- Iemon Edo Suntory Food International
- Semi-fermented tea Oolong tea
- Fermented tea black tea
- a chitosan solution was added to the base tea beverage to prepare a container-packed tea beverage having the formulation shown in the following table.
- an aqueous solution of sodium hydroxide was added to adjust the pH of the tea beverage to 6.0.
- Table 1 shows the results of evaluating the occurrence of turbidity of the prepared containerized tea beverage.
- fermented tea black tea
- turbidity clearly occurred at any concentration.
- non-fermented tea green tea
- semi-fermented tea Syuryu tea
- Experiment 2 Production and evaluation of chitosan-containing beverage (Influence of chitosan molecular weight) The influence of the molecular weight of chitosan was examined in detail for non-fermented tea (green tea) and semi-fermented tea (Syuryu tea) for which good results were obtained in Experiment 1.
- container-packed tea beverages having the formulations shown in the following table were prepared and evaluated.
- the following materials were used as chitosans having different molecular weights (both manufactured by Koyo Chemical).
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- Dispersion Chemistry (AREA)
- Tea And Coffee (AREA)
Abstract
Description
(1) 分子量が7kDa以下のキトサンを200ppm以下の濃度で含有する非発酵茶飲料または半発酵茶飲料。
(2) 前記キトサンの濃度が1~80ppmである、(1)に記載の飲料。
(3) 前記キトサンの分子量が5kDa以下である、(1)または(2)に記載の飲料。
(4) 緑茶飲料または烏龍茶飲料である、(1)~(3)のいずれかに記載の飲料。
(5) 飲料のpHが3.5~7.5である、(1)~(4)のいずれかに記載の飲料。
(6) 容器詰飲料である、(1)~(5)のいずれかに記載の飲料。
(7) 分子量が7kDa以下のキトサンを200ppm以下の濃度で配合することを含む、非発酵茶飲料または半発酵茶飲料の製造方法。
(8) 分子量が7kDa以下のキトサンを200ppm以下の濃度で配合することを含む、非発酵茶飲料または半発酵茶飲料における濁りの発生を抑制する方法。
本発明に係る茶飲料は、特定の分子量のキトサンを含有する。キトサン(chitosan)は、直鎖型の多糖類であり、グルコサミンの1,4-重合物である。キトサンの分子式は(C6H11NO4)nであり、重合度によって分子量は数十万に及ぶこともある。本明細書においては、その分子量や重合度にかかわらず、グルコサミンの1,4-重合物であればキトサンという。
本発明に係る飲料は、茶飲料の中でも特に、非発酵茶または半発酵茶に関する。本発明に係る茶飲料は、茶の抽出液を配合して得ることができる。茶抽出液は、原料茶葉を加温水にて抽出し、その茶抽出液から抽出残渣を取り除くことにより得られる。本発明に係る茶飲料には、ツバキ属植物であるチャ(学名:Camellia sinensis)に属する樹木の葉もしくはその加工物から得られる茶抽出液が配合されるが、茶としては、半発酵茶および/または非発酵茶が用いられる。原料茶葉は、半発酵茶または非発酵茶であれば、茶葉の品種、産地、摘採時期、摘採方法、栽培方法などは何ら限定されず、例えば、葉や茎を含む生茶葉などを原料茶葉とすることも可能である。非発酵茶としては、例えば、煎茶、玉露、てん茶などの緑茶類、半発酵茶としては、例えば、鉄観音、黄金桂などの烏龍茶(青茶)を好適に挙げることができる。
種々の茶飲料にキトサンを配合して、茶飲料におけるキトサンの凝集しやすさを評価した。
キトサンオリゴ糖(重合度:2~8、平均分子量:1.6kDa以下)を滅菌水で希釈し、1重量%のキトサン溶液を調製した。また、市販の茶飲料3種(非発酵茶、半発酵茶、発酵茶)を濾過して不溶性固形分を除去し、ベースとなる茶飲料を準備した。
・非発酵茶(緑茶) :伊右衛門(サントリー食品インターナショナル)
・半発酵茶(烏龍茶):ウーロン茶(サントリー食品インターナショナル)
・発酵茶(紅茶) :午後の紅茶おいしい無糖(キリン)
次いで、ベースとなる茶飲料にキトサン溶液を添加して、下表に示す配合の容器詰茶飲料を調製した。ここで、水酸化ナトリウム水溶液を添加して茶飲料のpHを6.0に調整した。
ボルテックスミキサーで撹拌後、室温にて1時間静置した段階における容器詰飲料について、その外観を目視により3段階で評価した。評価基準は下記のとおりである。
「-」:濁りが生じない(キトサン無配合のコントロールと差がない)
「+」:わずかに濁りが生じる
「++」:明らかに濁りが生じる
実験1で良好な結果が得られた非発酵茶(緑茶)と半発酵茶(烏龍茶)について、キトサンの分子量の影響を詳細に検討した。実験1と同様にして、下表に示す配合の容器詰茶飲料を調製して評価した。この実験では、分子量の異なるキトサンとして下記の材料を使用した(いずれも甲陽ケミカル製)。
・キトサン(重合度:2~8、平均分子量:1.6kDa以下)
・キトサン(重合度:約100、平均分子量:約16kDa)
・キトサン(重合度:約300、平均分子量:約49kDa)
Claims (8)
- 分子量が7kDa以下のキトサンを200ppm以下の濃度で含有する非発酵茶飲料または半発酵茶飲料。
- 前記キトサンの濃度が1~80ppmである、請求項1に記載の飲料。
- 前記キトサンの分子量が5kDa以下である、請求項1または2に記載の飲料。
- 緑茶飲料または烏龍茶飲料である、請求項1~3のいずれかに記載の飲料。
- 飲料のpHが3.5~7.5である、請求項1~4のいずれかに記載の飲料。
- 容器詰飲料である、請求項1~5のいずれかに記載の飲料。
- 分子量が7kDa以下のキトサンを200ppm以下の濃度で配合することを含む、非発酵茶飲料または半発酵茶飲料の製造方法。
- 分子量が7kDa以下のキトサンを200ppm以下の濃度で配合することを含む、非発酵茶飲料または半発酵茶飲料における濁りの発生を抑制する方法。
Priority Applications (6)
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SG11202005477UA SG11202005477UA (en) | 2017-12-27 | 2018-10-12 | Chitosan-containing non-fermented tea beverage or semi-fermented tea beverage |
EP18896926.5A EP3732989A4 (en) | 2017-12-27 | 2018-10-12 | UNFERMENTED TEA-BASED DRINK OR SEMI-FERMENTED TEA-BASED DRINK CONTAINING CHITOSAN |
MYPI2020003261A MY197310A (en) | 2017-12-27 | 2018-10-12 | Chitosan-containing non-fermented tea beverage or semi-fermented tea beverage |
AU2018398427A AU2018398427B2 (en) | 2017-12-27 | 2018-10-12 | Chitosan-containing non-fermented tea beverage or semi-fermented tea beverage |
US16/957,171 US20200329740A1 (en) | 2017-12-27 | 2018-10-12 | Chitosan-containing non-fermented tea beverage or semi-fermented tea beverage |
NZ765436A NZ765436B2 (en) | 2018-10-12 | Chitosan-containing non-fermented tea beverage or semi-fermented tea beverage |
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JP2017252490A JP6924134B2 (ja) | 2017-12-27 | 2017-12-27 | キトサンを含有する非発酵茶飲料または半発酵茶飲料 |
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EP (1) | EP3732989A4 (ja) |
JP (1) | JP6924134B2 (ja) |
AU (1) | AU2018398427B2 (ja) |
MY (1) | MY197310A (ja) |
SG (1) | SG11202005477UA (ja) |
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US20220340846A1 (en) * | 2019-09-30 | 2022-10-27 | Suntory Holdings Limited | Packaged alcoholic beverage |
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JP7182432B2 (ja) * | 2018-11-14 | 2022-12-02 | サントリーホールディングス株式会社 | キトサンを含有する飲料 |
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2018
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- 2018-10-12 MY MYPI2020003261A patent/MY197310A/en unknown
- 2018-10-12 WO PCT/JP2018/038021 patent/WO2019130724A1/ja unknown
- 2018-10-12 AU AU2018398427A patent/AU2018398427B2/en active Active
- 2018-10-12 EP EP18896926.5A patent/EP3732989A4/en active Pending
- 2018-10-12 SG SG11202005477UA patent/SG11202005477UA/en unknown
- 2018-10-25 TW TW107137704A patent/TWI788441B/zh active
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AU2018398427B2 (en) | 2021-10-28 |
AU2018398427A1 (en) | 2020-07-02 |
JP2019115325A (ja) | 2019-07-18 |
JP6924134B2 (ja) | 2021-08-25 |
EP3732989A1 (en) | 2020-11-04 |
US20200329740A1 (en) | 2020-10-22 |
NZ765436A (en) | 2024-08-30 |
EP3732989A4 (en) | 2021-09-22 |
SG11202005477UA (en) | 2020-07-29 |
TWI788441B (zh) | 2023-01-01 |
TW201934012A (zh) | 2019-09-01 |
MY197310A (en) | 2023-06-12 |
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