WO2022002219A1 - 一种萃取液及其制造方法和包含其的容器装饮料 - Google Patents

一种萃取液及其制造方法和包含其的容器装饮料 Download PDF

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Publication number
WO2022002219A1
WO2022002219A1 PCT/CN2021/104108 CN2021104108W WO2022002219A1 WO 2022002219 A1 WO2022002219 A1 WO 2022002219A1 CN 2021104108 W CN2021104108 W CN 2021104108W WO 2022002219 A1 WO2022002219 A1 WO 2022002219A1
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WIPO (PCT)
Prior art keywords
extraction
tea
extract
deionized water
water
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Ceased
Application number
PCT/CN2021/104108
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English (en)
French (fr)
Chinese (zh)
Inventor
耿立波
盛奥凯
郭晨欣
宋祺
王伟华
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Coca Cola Co
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Coca Cola Co
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Filing date
Publication date
Application filed by Coca Cola Co filed Critical Coca Cola Co
Priority to US18/014,319 priority Critical patent/US20230240316A1/en
Priority to CA3188746A priority patent/CA3188746A1/en
Priority to JP2022580966A priority patent/JP2023533497A/ja
Priority to EP21833597.4A priority patent/EP4176727A4/en
Priority to KR1020237003638A priority patent/KR20230030658A/ko
Publication of WO2022002219A1 publication Critical patent/WO2022002219A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • A23F3/16—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
    • A23F3/18—Extraction of water soluble tea constituents
    • 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
    • A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
    • A23F5/00—Coffee; Coffee substitutes; Preparations thereof
    • A23F5/24—Extraction of coffee; Coffee extracts; Making instant coffee
    • A23F5/243—Liquid, semi-liquid or non-dried semi-solid coffee extract preparations; Coffee gels; Liquid coffee in solid capsules
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
    • A23F5/00—Coffee; Coffee substitutes; Preparations thereof
    • A23F5/24—Extraction of coffee; Coffee extracts; Making instant coffee
    • A23F5/26—Extraction of water soluble constituents
    • 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
    • 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
    • A23L33/00—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
    • A23L33/10—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives
    • A23L33/105—Plant extracts, their artificial duplicates or their derivatives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/02—Solvent extraction of solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/02—Solvent extraction of solids
    • B01D11/0215—Solid material in other stationary receptacles
    • B01D11/0219—Fixed bed of solid material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/02—Solvent extraction of solids
    • B01D11/0215—Solid material in other stationary receptacles
    • B01D11/0253—Fluidised bed of solid materials
    • B01D11/0257—Fluidised bed of solid materials using mixing mechanisms, e.g. stirrers, jets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/02—Solvent extraction of solids
    • B01D11/0288—Applications, solvents

Definitions

  • the present application relates to, but is not limited to, the manufacturing technology of beverages, in particular, but not limited to, an extract, a method for manufacturing the same, and a beverage in a container containing the same.
  • Patent TW 1321452 discloses an extraction method for packaging tea beverages.
  • the method adopts the method of mixing ice water (10°C to 15°C) and warm water (50°C to 55°C) extracts to obtain tea beverages.
  • the method of alternately stirring and pausing accelerates the extraction, and after the extraction, the tea beverage is prepared by mixing two extracts of different proportions.
  • Patent TW 200942179A discloses an up-flow closed-cycle extraction system. Through the up-flow extraction system, extraction liquid is used to extract tea leaves in a cyclic manner: water preheated to a certain temperature is added to the extraction bucket from the bottom of the extraction bucket, and the extraction bucket is removed from the extraction bucket. The tea extract is extracted from the upper top of the device, and then cyclic extraction is performed to obtain a tea beverage.
  • the complexity and controllability of the process operation are increased due to the use of two-step high and low temperature extraction.
  • the patent TW 200942179A adopts a closed-cycle extraction method, and the tea extract is recycled for a long time to extract tea leaves, which is destructive to the tea extract, and the extraction equipment must be closed and circulated, resulting in slightly poor versatility.
  • Patent JP Laid-Open No. 6-30703 discloses an ultra-high pressure extraction method for coffee and tea beverages, which uses first ultra-high pressure and low temperature extraction, and then the residue (coffee or tea) is subjected to secondary high-temperature extraction. Down extraction prevents the loss and destruction of low boiling volatiles to prepare beverages.
  • Patent JP Patent Publication No. 4464337 discloses a manufacturing method of tea extract. In this method, a certain amount of water is firstly added to a cylindrical tea extraction kettle, so that the volume of the water above the filter and the weight ratio of the tea leaves are 1.5 to 6.0. The temperature is 0°C to 70°C, after adding, let stand for 2 minutes to 20 minutes, and then extract the tea soup and add the water at the same speed; finally obtain the tea extract whose quality is 10 times to 100 times that of the tea leaves.
  • the application provides a manufacturing method of an extract, the manufacturing method comprising:
  • the substance to be extracted may be coffee, tea leaves, roots, stems, leaves, flowers, fruits or seeds of herbs.
  • the substance to be extracted may be tea leaves.
  • the temperature of the deionized water in each step may be 5°C to 100°C, optionally, the temperature of the deionized water in each step is 5°C to 35°C or 35°C °C to 100 °C.
  • the mass ratio of the tea leaves to the deionized water used for extraction in each step can be in the range of 1:3 to 1:20;
  • the mass ratio of the deionized water used is in the range of 1:5 to 1:15; also optionally, the mass ratio of the tea leaves and the deionized water used in the extraction in each step is in the range of 1:8 to 1:12 Inside.
  • the extraction time in each step may be 0.5 minutes to 30 minutes; optionally, the extraction time in each step is 1.5 minutes to 20 minutes; also optionally, in each step The extraction time is 1.5 minutes to 12 minutes.
  • the number of times of repeating step S200 in step S210 may be 0 to 8 times, and optionally, the number of times of repeating step S200 in step S210 is 0 to 6 times.
  • the temperature of the deionized water used in the extraction in each step may be the same or different, and optionally, the temperature of the deionized water used in the extraction in each step is the same.
  • both deionized water at 5°C to 35°C and deionized water at 35°C to 100°C may be used.
  • the amount of deionized water used in the extraction in each step may be the same or different, and optionally, the amount of deionized water used in the extraction in each step is the same.
  • the deionized water may be anion-cation resin exchange deionized water, distilled water or RO water.
  • step S100 the substance to be extracted is added before or after the deionized water used for extraction is added.
  • the extraction can be performed with or without stirring.
  • the equipment used for the extraction may be a tank type, a basket type or a spray type extraction equipment.
  • the tea leaves may be selected from any one or more of black tea, green tea, dark tea, oolong tea, yellow tea, white tea and scented tea.
  • the present application also provides an extract prepared by the above-described method for producing an extract.
  • the present application also provides a container-packed beverage obtained by directly or diluting the extract obtained by the above-mentioned method for producing the extract.
  • Fig. 1 is a comparison diagram of the sensory evaluation results of the bottled tea beverages of Example 1 of the application and Comparative Example 1;
  • Fig. 2 is a comparison diagram of the sensory evaluation results of the bottled tea beverages of Example 2 of the application and Comparative Example 2;
  • Example 3 is a comparison diagram of the sensory evaluation results of the bottled tea beverages of Example 3 of the application and Comparative Example 3;
  • Fig. 4 is a comparison diagram of sensory evaluation results of the bottled tea beverages of Example 4 of the application and Comparative Example 4;
  • FIG. 5 is a comparison diagram of the sensory evaluation results of the bottled tea beverages of Example 5 of the application and Comparative Example 5;
  • FIG. 6 is a comparison diagram of the sensory evaluation results of the bottled tea beverages of Example 6 of the application and Comparative Example 6;
  • Example 7 is a comparison diagram of the sensory evaluation results of the bottled tea beverages of Example 7 of the application and Comparative Example 7;
  • FIG. 8 is a comparison diagram of the sensory evaluation results of the bottled tea beverages of Example 8 of the application and Comparative Example 8;
  • Example 9 is a comparison diagram of the sensory evaluation results of the bottled tea beverages of Example 9 of the application and Comparative Example 9;
  • Figure 10 is a comparison diagram of the sensory evaluation results of the bottled tea beverages of Example 10 of the application and Comparative Example 10;
  • Example 11 is a graph showing the variation of extraction yield (cumulative) with extraction time of Example 14 of the application under different ratios of tea to water;
  • FIG. 12 is a graph showing the variation of the extraction yield (cumulative) of Example 15 of the application under different extraction times.
  • the embodiments of the present application provide a method for manufacturing an extract, the manufacturing method comprising:
  • the manufacturing method of the extract in the embodiment of the present application adopts the method of performing multiple extractions on the extract, which not only effectively improves the extraction yield, reduces the product cost, but also shortens the extraction time and improves the production efficiency; in addition, it can effectively Inhibit the dissolution of bitter substances and improve the flavor of beverages.
  • the extraction is achieved by soaking the extract to be treated with deionized water.
  • extraction yield is defined as the dry weight of the actual extract as a percentage of the dry weight of the raw material to be extracted (eg, tea leaves).
  • the substance to be extracted may be coffee, tea leaves, roots, stems, leaves, flowers, fruits or seeds of herbs.
  • the substance to be extracted may be tea leaves.
  • the temperature of the deionized water in each step may be 5°C to 100°C, optionally, the temperature of the deionized water in each step is 5°C to 35°C or 35°C °C to 100 °C.
  • the extraction process may only include natural temperature extraction or high temperature extraction, or may include both natural temperature extraction and high temperature extraction.
  • the mass ratio of the tea leaves to the deionized water used for extraction in each step can be in the range of 1:3 to 1:20; optionally , the mass ratio of the tea leaves described in each step and the deionized water used for extraction is in the range of 1:5 to 1:15; also optionally, the quality of the tea leaves described in each step and the deionized water used for extraction The ratio is in the range of 1:8 to 1:12.
  • the extraction time in each step may be 0.5 minutes to 30 minutes; optionally, the extraction time in each step is 1.5 minutes to 20 minutes; also optionally, in each step The extraction time is 1.5 minutes to 12 minutes.
  • the number of times of repeating step S200 in step S210 may be 0 to 8 times, for example, the number of times of repeating step S200 may be 0 times, 1 time, 2 times, 3 times, 4 times, 5 times, 6 times, 7 times or 8 times, that is, the extraction times in the whole manufacturing method are 2 to 10 times; with the increase of the extraction times, the extraction yield can be better improved, but considering the production efficiency and product flavor , different extraction times can be designed according to different product characteristics; optionally, the number of times of repeating step S200 in step S210 is 0 to 6 times.
  • the temperature of the deionized water used in the extraction in each step may be the same or different, and optionally, the temperature of the deionized water used in the extraction in each step is the same.
  • both deionized water at 5°C to 35°C and deionized water at 35°C to 100°C may be used.
  • the amount of deionized water used in the extraction in each step may be the same or different, and optionally, the amount of deionized water used in the extraction in each step is the same.
  • the deionized water may be anion-cation resin exchanged deionized water, distilled water or RO water (reverse osmosis water).
  • anion and cation resin exchange deionized water is defined as the water obtained after passing through anion and cation resin ion exchange column; its preparation process may include: raw water ⁇ multi-media filter ⁇ activated carbon filter ⁇ precision filter ⁇ cation bed ⁇ Shadow bed ⁇ mixed bed ⁇ post security filter.
  • RO water reverse osmosis water
  • RO water reverse osmosis water
  • the substance to be extracted may be added before or after the deionized water used for extraction is added.
  • the extraction can be performed with or without stirring.
  • the deionized water may be supplied in the form of injection or spray.
  • the spray method helps to uniformly extract the active ingredients of the to-be-extracted substance because the water evenly contacts the to-be-extracted substance.
  • the equipment used for extraction may be any extraction equipment having a supply port for deionized water and a discharge port for extracting liquid, for example, a tank type (tank), a basket type (basket), or a spray type (drip).
  • the extraction equipment is, for example, an extraction kettle or a spray column extraction kettle.
  • the nozzle angle and height of the spray extraction equipment can be adjusted so that the water can be evenly sprayed on the upper surface of the object to be extracted. Water can be sprayed onto the surface of the extract to be extracted in the form of droplets or mist.
  • Coffee extraction machines SK-EXT10 and SK-EXT-15 made by Sanyu Machinery Co., Ltd. with a shower on the upper part
  • multifunctional extraction devices TEX1512 and TEX2015 made by Izumi food MA°HINERY°CO., LTD., etc. can be used.
  • the equipment used for extraction can be closed or open, optionally closed, which can avoid the deterioration of the working environment caused by the escape of steam in the extraction operation, and can also avoid the volatilization of aroma components. And oxidation leads to quality degradation and other problems.
  • the extractor may be a closed column extractor.
  • the equipment used for extraction may have meshes, mesh plates or other meshes for separating the substance to be extracted and the extraction liquid.
  • the embodiments of the present application also provide the extract prepared by the above-mentioned manufacturing method of the extract.
  • the embodiments of the present application also provide a container-packed beverage obtained by directly or by diluting the extract prepared by the above-mentioned method for producing the extract.
  • the embodiment of the present application also provides a method for producing a tea extract, the method comprising:
  • S100 use deionized water to extract the tea leaves, and discharge the tea soup after the extraction;
  • step S300 Mix together the tea soup obtained in steps S100, S200 and optionally in step S210 to obtain the tea extract.
  • the manufacturing method of the tea extract in the embodiment of the present application adopts the method of extracting the tea leaves multiple times, which not only effectively improves the extraction yield, reduces the product cost, but also shortens the extraction time and improves the production efficiency; in addition, it can effectively Inhibit the dissolution of bitter substances and improve the flavor of tea beverages.
  • the extraction is achieved by soaking the tea leaves with deionized water.
  • the temperature of the deionized water in each step may be 5°C to 100°C, optionally, the temperature of the deionized water in each step is 5°C to 35°C or 35°C °C to 100 °C.
  • Deionized water at 5°C to 35°C is usually deionized water at the natural environment temperature, which can be obtained without consuming energy for cooling or heating, avoiding energy consumption. Select the appropriate temperature within the range. However, due to seasonal or regional environmental reasons, the temperature of deionized water in the natural environment may not meet the requirements for use. At this time, the required temperature can be met by cooling or heating.
  • Deionized water at 5°C to 35°C is used for natural temperature extraction. Natural temperature extraction is beneficial to inhibit the dissolution of bitter substances and improve the flavor of tea beverages; deionized water at 35°C to 100°C is used for high-temperature extraction. Extraction is beneficial to the improvement of extraction yield.
  • the extraction process may only include natural temperature extraction or high temperature extraction, or may include both natural temperature extraction and high temperature extraction.
  • the mass ratio of the tea leaves to the deionized water used for extraction in each step can be in the range of 1:3 to 1:20; the tea water ratio is too small, and the tea leaves cannot be completely soaked; the tea water ratio is too large The extraction yield of tea leaves cannot be effectively improved, and more energy consumption is wasted.
  • the tea leaves can be completely Infiltration can effectively improve the extraction yield; optionally, the mass ratio of the tea leaves and deionized water used for extraction in each step is in the range of 1:5 to 1:15; also optionally, each step The mass ratio of the tea leaves to the deionized water used for extraction is in the range of 1:8 to 1:12.
  • the extraction time in each step may be 0.5 minutes to 30 minutes; optionally, the extraction time in each step is 1.5 minutes to 20 minutes; also optionally, in each step The extraction time is 1.5 minutes to 12 minutes.
  • the mass ratio of the tea leaves to the deionized water used for extraction in each step can be in the range of 1:3 to 1:15, and the extraction time in each step can be 2 minutes to 10 minutes. minute.
  • the number of times of repeating step S200 in step S210 may be 0 to 8 times, for example, the number of times of repeating step S200 may be 0 times, 1 time, 2 times, 3 times, 4 times, 5 times, 6 times, 7 times or 8 times, that is, the extraction times in the whole manufacturing method are 2 to 10 times; with the increase of the extraction times, the extraction yield can be better improved, but considering the production efficiency and product flavor , different extraction times can be designed according to different product characteristics; optionally, the number of times of repeating step S200 in step S210 is 0 to 6 times.
  • the mass ratio of the tea leaves to the deionized water used in the whole extraction process can be in the range of 1:30 to 1:60; Too much, over-extracted, resulting in poor flavor.
  • the mass ratio of the tea leaves to the deionized water used in the entire extraction process is in the range of 1:30 to 1:40.
  • the temperature of the deionized water used in the extraction in each step may be the same or different, and optionally, the temperature of the deionized water used in the extraction in each step is the same.
  • deionized water at 5°C to 35°C may be used for extraction in some steps, and deionized water at 35°C to 100°C may be used for extraction in some steps. That is, in the whole extraction process, both deionized water at 5°C to 35°C and deionized water at 35°C to 100°C are used.
  • the amount of deionized water used in the extraction in each step may be the same or different, and optionally, the amount of deionized water used in the extraction in each step is the same.
  • the manufacturing method may include:
  • step S200 Add the same amount of deionized water as in step S100 again to extract the remaining tea obtained in step S100, the extraction time is the same as that in step S100, and the tea soup is discharged after the extraction is completed;
  • step S300 Mix together the tea soup obtained in steps S100, S200 and optionally in step S210 to obtain the tea extract.
  • the deionized water may be anion-cation resin exchanged deionized water, distilled water or RO water (reverse osmosis water).
  • step S100 the tea leaves are added before or after the deionized water used for extraction is added.
  • the extraction can be performed with or without stirring.
  • the tea leaves may be tea leaves processed from fresh leaves of Camellia sinensis (Camellia sinensis or Camellia assimica); green tea, white tea, yellow tea, Tea (oolong tea), black tea, dark tea (such as Pu-erh tea) and reprocessed tea leaves (scented jasmine tea) or any other kind of tea, also including all the above-mentioned tea leaves that have been decaffeinated by a decaffeination process Or decaffeinated tea, with your choice of green, oolong and black teas.
  • Camellia sinensis Camellia sinensis or Camellia assimica
  • green tea white tea
  • yellow tea Tea
  • Tea oolong tea
  • black tea black tea
  • dark tea such as Pu-erh tea
  • reprocessed tea leaves scented jasmine tea
  • Described black tea can include the tea leaves of fermented teas such as Darjeeling, Assam, Sri Lanka, etc., which are called black tea;
  • Described green tea can include Camellia (camellia) genus, and C.
  • Green tea such as sencha, yulu, sweet tea and other green teas obtained from tea leaves through the tea-making process;
  • the oolong tea may include semi-fermented teas such as Tieguanyin, compound oolong, color, golden cinnamon, Wuyi rock tea, etc. collectively referred to as oolong tea. tea.
  • the tea leaves to be used may be in the form of uncut leaves or small leaves after cutting, or may be mixed depending on the type or shape of the tea leaves.
  • the particle size of tea leaves has an impact on the speed of extraction, and it is easier for small-particle tea leaves to achieve an extraction balance.
  • the deionized water may be supplied in the form of injection or spray.
  • the spray method helps to evenly extract the active ingredients of the tea because the water evenly contacts the tea leaves.
  • the equipment used for extraction may be any extraction equipment having a supply port for deionized water and a discharge port for extracting liquid, for example, a tank type (tank), a basket type (basket), or a spray type (drip).
  • the extraction equipment is, for example, a tea extraction kettle or a spray column-shaped tea extraction kettle.
  • the nozzle angle and height of the spray extraction equipment can be adjusted so that the water can be evenly sprayed on the upper surface of the tea leaves. Water can be sprayed onto the tea leaves in the form of droplets or mist.
  • Coffee extraction machines SK-EXT10 and SK-EXT-15 made by Sanyu Machinery Co., Ltd. with a shower on the upper part
  • multifunctional extraction devices TEX1512 and TEX2015 made by Izumi food MA°HINERY°CO., LTD., etc. can be used.
  • the equipment used in the extraction can be closed or open, optionally closed, which can avoid the steam escaping in the extraction operation and cause the deterioration of the working environment, and can also avoid the tea
  • the volatilization and oxidation of aroma components lead to problems such as quality degradation.
  • the extractor may be a closed column extractor.
  • the inside of the equipment used for extraction may have meshes, mesh plates or other meshes for separating tea leaves and tea extracts.
  • the embodiments of the present application also provide a tea extract prepared by the above-mentioned manufacturing method of a tea extract.
  • the embodiment of the present application also provides a container-packed tea beverage obtained by the tea extract prepared by the above-mentioned manufacturing method of the tea extract directly or after dilution.
  • the tea extract is directly cooled, cleaned by a centrifuge (5000RPM, 8000L/h) and then subjected to UHT sterilization (F0 value at least 4), and aseptically filled into a concentrated tea beverage for catering channels or households are used as tea bases for DIY use (adding fruit juice to make juice tea, adding fresh milk to make milk tea, etc.).
  • the centrifuge model adopted in the centrifuge cleaning and purification treatment in the following examples and comparative examples is Hitachi CR21GII, and static centrifugation is carried out.
  • the self-made extraction equipment used in the following examples and comparative examples is composed of a 304-type stainless steel barrel with a sealing cover (volume is 5L or 1L) and an electric heating constant temperature water bath (HWS-24) produced by Shanghai Huitai. Put the tea leaves and extraction water into the stainless steel barrel and seal it with a sealing cover, then put it into an electric heating constant temperature water bath for extraction under constant temperature conditions, and pour out the tea soup after the extraction.
  • HWS-24 electric heating constant temperature water bath
  • Manufacture of cold brew green tea beverages including:
  • step S200 Add 440g of room temperature RO water (25° C.) to the extraction equipment again to extract the remaining tea leaves in step S100 for 10 minutes, and drain out the tea soup (extract 2) after the extraction is complete;
  • step S400 Take the tea extract obtained in step S300 and prepare a beverage with a solid content concentration of 2.3 g/L, sterilize and fill a bottle to obtain a bottled tea beverage.
  • step S200' the extract 1' obtained in step S100' is cooled and cleaned by a centrifuge (5000RPM, 10 minutes) to obtain a clearer tea extract;
  • step S300' take the tea extract obtained in step S200' and prepare a beverage with a solid concentration of 2.3 g/L, sterilize and then bottle to obtain a bottled tea beverage.
  • Example 1 Compared with Comparative Example 1, the extraction yield of the production method of Example 1 was improved by 12.2%.
  • Example 1 It can be seen that the bottled tea beverage of Example 1 has improved aroma and reduced bitterness.
  • Manufacture of cold brew oolong tea beverages including:
  • step S200 Add 435g of room temperature RO water (25.7° C.) to the extraction equipment again to extract the remaining tea leaves in step S100 for 10 minutes, and drain out the tea soup (extract 2) after the extraction is completed;
  • step S400 Take the tea extract obtained in step S300 and mix it into a beverage of 14.5 g/L (calculated by dry tea leaves), sterilize and then bottle to obtain a bottled tea beverage.
  • step S200' the extract 1' obtained in step S100' is cooled and cleaned by a centrifuge (5000RPM, 10 minutes) to obtain a clearer tea extract;
  • step S300' take the tea extract obtained in step S200' and mix it into a beverage of 14.5 g/L (calculated by dry tea leaves), sterilize and bottle to obtain a bottled tea beverage.
  • Comparative Example 2 is lighter and more astringent than that of Example 2.
  • Manufacture of cold brew black tea beverages including:
  • step S200 Add 700g of room temperature RO water (24.1°C) to the extraction equipment again to extract the remaining tea leaves in step S100 for 7 minutes, and drain the tea soup (extract 2) after the extraction is completed for use;
  • step S400 Take the tea extract obtained in step S4 and mix it into a beverage of 8.0 g/L (dry tea leaves), sterilize and bottle it to obtain a bottled tea beverage.
  • step S200' the extract 1' obtained in step S100' is cooled and cleaned by a centrifuge (5000RPM, 10 minutes) to obtain a clearer tea extract;
  • step S300' take the tea extract obtained in step S200' and mix it into a beverage of 8.0 g/L (dry tea leaves), sterilize and bottle to obtain a bottled tea beverage.
  • Manufacture of cold brew green tea beverages including:
  • step S200 Once again, the normal temperature RO water (26.5°C) is sprayed from the cylindrical tea extraction kettle at 400L/H to the remaining tea leaves in step S100 evenly for 7 minutes, and extracted for 5 minutes. After the extraction is completed, the tea soup (extract 2) is drained out for use ;
  • step S210 Repeat step S200 2 times to obtain extract 3 and extract 4;
  • step S400 Take the tea extract obtained in step S300 and prepare a beverage with a solid content concentration of 2.3 g/L, sterilize and fill a bottle to obtain a bottled tea beverage.
  • step S200' the extract 1' obtained in step S100' is cooled and cleaned by a centrifuge (5000RPM, 400L/H) to obtain a clearer tea extract;
  • step S300' take the tea extract obtained in step S200' and prepare a beverage with a solid concentration of 2.3 g/L, sterilize and then bottle to obtain a bottled tea beverage.
  • Example 4 It can be seen that under the same extraction yield, the aroma and overall flavor of Example 4 are relatively strong under different extraction processes. And the tea polyphenol caffeine that affects the flavor is lower than that of the control example, while the amino acid is higher than that of the control example.
  • Manufacture of cold brew oolong tea beverages including:
  • step S200 Add 435g of ice water RO water (5° C.) to the extraction equipment again to extract the remaining tea leaves in step S100 for 10 minutes, and drain the tea soup (extract 2) after the extraction is completed for use;
  • step S210 Repeat step S200 4 times to obtain extract 3, extract 4, extract 5 and extract 6;
  • step S400 Take the tea extract obtained in step S300 and mix it into a beverage of 14.5 g/L (calculated by dry tea leaves), sterilize and then bottle to obtain a bottled tea beverage.
  • step S200' the extract 1' obtained in step S100' is cooled and cleaned by a centrifuge (5000RPM, 10 minutes) to obtain a clearer tea extract;
  • step S300' take the tea extract obtained in step S200' and mix it into a beverage of 14.5 g/L (calculated by dry tea leaves), sterilize and bottle to obtain a bottled tea beverage.
  • Manufacture of hot green tea beverages including:
  • step S400 Take the tea extract obtained in step S300 and prepare a beverage with a solid content concentration of 2.3 g/L, sterilize and fill a bottle to obtain a bottled tea beverage.
  • step S200' the extract 1' obtained in step S100' is cooled and cleaned by a centrifuge (5000RPM, 10 minutes) to obtain a clearer tea extract;
  • step S300' take the tea extract obtained in step S200' and prepare a beverage with a solid concentration of 2.3 g/L, sterilize and then bottle to obtain a bottled tea beverage.
  • Manufacture of hot oolong tea beverages including:
  • step S200 add 435g of RO water (90° C.) to the extraction equipment again to the remaining tea leaves in step S100 for 2.67 minutes of extraction, and drain out the tea soup (extract 2) after the extraction is complete;
  • step S400 Take the tea extract obtained in step S300 and mix it into a beverage of 14.5 g/L (calculated by dry tea leaves), sterilize and then bottle to obtain a bottled tea beverage.
  • step S200' the extract 1' obtained in step S100' is cooled and cleaned by a centrifuge (5000RPM, 10 minutes) to obtain a clearer tea extract;
  • step S300' take the tea extract obtained in step S200' and mix it into a beverage of 14.5 g/L (calculated by dry tea leaves), sterilize and bottle to obtain a bottled tea beverage.
  • Manufacture of hot brewed black tea beverages including:
  • step S200 Add 400g of RO water (70° C.) to the extraction equipment again to extract the remaining tea leaves in step S100 for 2 minutes, and drain out the tea soup (extraction solution 2) after the extraction is completed;
  • step S400 The tea extract obtained in step S300 is prepared into a beverage of 13.3 g/L (dry tea leaves), sterilized and then bottled to obtain a bottled tea beverage.
  • step S200' the extract 1' obtained in step S100' is cooled and cleaned by a centrifuge (5000RPM, 10 minutes) to obtain a clearer tea extract;
  • step S300' take the tea extract obtained in step S200' and mix it into a beverage of 13.3 g/L (dry tea leaves), sterilize and bottle it to obtain a bottled tea beverage.
  • Comparative Example 8 is lighter than that of Example 8, and the bitterness and astringency are stronger.
  • Manufacture of hot oolong tea beverages including:
  • step S200 Add 90g RO water (100° C.) to the extraction equipment again to extract the remaining tea leaves in step S100 for 5 minutes, and drain out the tea soup (extract 2) after the extraction is completed;
  • step S210 Repeat step S200 5 times to obtain extraction solution 3 to extraction solution 7.
  • step S400 Take the tea extract obtained in step S300 and mix it into a beverage of 14.5 g/L (calculated by dry tea leaves), sterilize and then bottle to obtain a bottled tea beverage.
  • step S200' the extract 1' obtained in step S100' is cooled and cleaned by a centrifuge (5000RPM, 10 minutes) to obtain a clearer tea extract;
  • step S300' take the tea extract obtained in step S200' and mix it into a beverage of 14.5 g/L (calculated by dry tea leaves), sterilize and bottle to obtain a bottled tea beverage.
  • Manufacture of hot oolong tea beverages including:
  • step S200 Add 1250g RO water (90° C.) to the extraction equipment again to the remaining tea leaves in step S100 for 8 minutes of extraction, and after the extraction is completed, drain the tea soup (extract 2) for subsequent use;
  • step S400 Take the tea extract obtained in step S300 and mix it into a beverage of 12.5 g/L (calculated by dry tea leaves), sterilize and then bottle to obtain a bottled tea beverage.
  • step S200' the extract 1' obtained in step S100' is cooled and cleaned by a centrifuge (5000RPM, 10 minutes) to obtain a clearer tea extract;
  • step S300' take the tea extract obtained in step S200' and mix it into a beverage of 12.5 g/L (calculated by dry tea leaves), sterilize and bottle to obtain a bottled tea beverage.
  • Embodiment 11-1 (influence of tea-water ratio on extraction yield, single tea-water ratio: 1:10)
  • Manufacture of cold brew oolong tea beverages including:
  • step S200 add 435g of RO water (24.5°C) to the extraction equipment again to the remaining tea leaves in step S100 for 10 minutes of extraction, and drain out the tea soup (extract 2) after the extraction is complete;
  • step S210 Repeat step S200 2 times to obtain extract 3 and extract 4;
  • Embodiment 11-2 influence of tea-water ratio on extraction yield, single tea-water ratio 1:12.5
  • Manufacture of cold brew oolong tea beverages including:
  • Embodiment 11-3 (influence of tea water ratio on extraction yield, single tea water ratio 1:15)
  • Manufacture of cold brew oolong tea beverages including:
  • Example 12 (influence of extraction time on extraction yield in single extraction, single extraction is adopted and the ratio of tea to water is selected 1:30, magnetic stirring is turned on in extraction)
  • Manufacture of cold brew oolong tea beverages including:
  • step S2 Add 22.8g of frozen top oolong tea crushed tea leaves from the same batch as in step S1 and 684g RO water (25°C) into a self-made 1L extraction device, so that RO water soaks oolong tea leaves under the condition of magnetic stirring at 100RPM speed Extraction was carried out for 20 minutes, and after the extraction was completed, the tea soup (extract 2) was drained for subsequent use;
  • step S3 Add 22.8g of frozen top oolong tea leaves from the same batch as in step S1 and 684g of RO water (25°C) into a self-made 1L extraction device, so that RO water soaks oolong tea leaves under the condition of magnetic stirring at 100RPM speed Extraction was carried out in 30 minutes, and the tea soup (extract 3) was drained out after the extraction was completed for subsequent use;
  • Embodiment 13-1 (the influence of extraction time on extraction yield, adopts multiple extractions; the ratio of tea to water for single extraction is 1:10)
  • Manufacture of cold brew oolong tea beverages including:
  • Embodiment 13-2 (the influence of extraction time on extraction yield, adopts multiple extractions; the tea-water ratio of single extraction is selected 1:10)
  • Manufacture of cold brew oolong tea beverages including:
  • Embodiment 14 (the influence of extraction time on extraction yield in single extraction, adopts single extraction and the ratio of tea to water is 1:10, 1:20 and 1:40 respectively.
  • Adopt static extraction that is, in the standing condition without stirring
  • the method of soaking the tea leaves with water take samples after stirring evenly.
  • Manufacture of cold brew oolong tea beverages including:
  • Example 15 Influence on the overall extraction yield when the extraction time is 0.5 minutes and 1 minute in a single extraction, single extraction is adopted and the ratio of tea to water is 1:11 respectively; standard evaluation cup, static extraction method
  • Manufacture of hot oolong tea beverages including:
  • S3 Take 11 samples of S1 and S2 respectively, measure Brix, and calculate the extraction yield. The calculation results are shown in Table 15 and Figure 12.

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JP2022580966A JP2023533497A (ja) 2020-07-01 2021-07-01 抽出液、その製造方法及びそれを含有する容器包装された飲料
EP21833597.4A EP4176727A4 (en) 2020-07-01 2021-07-01 EXTRACT LIQUID, PROCESS FOR PRODUCING IT, AND DRINK PACKAGED IN A CONTAINER CONTAINING IT
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