CN105875958A - Production method of green tea powder - Google Patents
Production method of green tea powder Download PDFInfo
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- CN105875958A CN105875958A CN201410576697.7A CN201410576697A CN105875958A CN 105875958 A CN105875958 A CN 105875958A CN 201410576697 A CN201410576697 A CN 201410576697A CN 105875958 A CN105875958 A CN 105875958A
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Abstract
A production method of green tea powder belongs to the technical field of tea beverages. The production method comprises the following steps: 1) adding 56% of mandelic acid and 26% of citric acid to a green concentrated liquid, which is higher than 31% in concentration and is prepared from green tea leaves, to regulate the pH value to 5-6; 2) filtering the green concentrated liquid to remove non-acid-resistant components to obtain an acidic green concentrated liquid; 3) adding sodium carbonate to the acidic green concentrated liquid to regulate the pH value to 6-7; and 4) spray-drying the acidic green concentrated liquid with the pH value being 6-7 to prepare the green tea powder. The green tea leaves herein are large tea leaves which are rich in polyphenol, amino acid and caffeine. The production method is simple in process. The green tea powder has excellent taste, has mellow tea fragrance and also has a natural fruit fragrance, is low in production cost and is convenient to use and store.
Description
Technical field
The present invention relates to teas drink preparing technical field, particularly relate to the preparation method of a kind of green tea powder.
Background technology
The development of China's instant tea and production, also have three, 40 years history, first have developed the product of vacuum freeze drying,
Next have developed the product of spray drying, and both instant tea products have respective feature.Vacuum freeze drying product, due to
Dry run is carried out under low-temperature condition, and the fragrance loss of tealeaves is few, and keeps the fragrance of former tea, but length drying time, energy consumption
Greatly, cost is high；The product being spray-dried is atomized under the high temperature conditions and is dried rapidly, and aromatic substance loses, and profile is in granular form,
Good flowing properties, low cost.The product of two kinds of drying means, its drying cost the former exceed several times than the latter, in order to save life
Produce cost, therefore, produce instant tea product both at home and abroad and be widely used spray drying process.The processing method of instant tea is the simplest
Single, mainly it is made up of parts such as extracting, concentrate, be dried.Wherein extracting is to adopt water as the soluble substance in solvent extraction tealeaves,
Its method is roughly divided into three kinds: boiling water brews extraction, seepage pressure effects, extracts continuously.Use the method extracted continuously, extract
The concentration come can reach 10～15%, and use boiling water to brew and extract and the method for seepage pressure effects, and the concentration extracted is the most only
1～5%.Extract all contains large quantity of moisture, it is necessary to technological requirement when concentrated process can be only achieved dry.
And the raw material of these instant tea be all into sample tea, semi-finished product tea, tealeaves byproduct or fresh leaf, then through extracting, filtering,
Concentrate, be dried etc. technical process, be eventually fabricated instant tea.Along with the development of society, tea-manufacturing technology have also been obtained the biggest raising.
Method for concentration in tea-manufacturing technology step, is primarily now concentrated in vacuo, freeze concentration etc., and these methods are wide in food industry
General application.In terms of the security of tealeaves, it is desirable to temperature is low and the time is short, consider from processing technology, it is necessary to require low
Pressure.Using at present most in the production of instant tea is to be concentrated in vacuo, and is characterized in not heating, not transpiring moisture, there is not phase
Change process, is a kind of method for concentration favourable to tea leaf quality.And the instant tea that people often eat generally is behaved with the form of tea powder
Known to, tea powder is that moment is ground into pure natural tea steaming with fresh leaves of tea plant after high-temperature steam completes and special process processes
Blue or green ultramicro powder, keeps the original color and luster of tealeaves and nutrition, pharmaceutical component to greatest extent, without any chemical addition agent,
Except in addition to directly drinking, can extensively make an addition to all kinds of frozen goods, as milk freeze, ice cream, made quick-frozen dumpling, ice cream, Yoghourt etc.；Face
Goods, such as cake, bread, vermicelli, biscuit, bean curd etc.；Also can make an addition among Medicines and Health Product, daily chemicals, with
Strengthening its nutritional health function, different tealeaves can make different tea powder, and the operation that same tealeaves makes also has the most very much not
With.Instant tea is of a great variety due to the tealeaves difference of selection, and the most common instant tea is instant black tea and instant green tea.
Green tea is that China's production history is long, distributional region is wide, the miscellaneous a kind of tea of quality, and what green tea was more remains fresh leaf
Interior natural materials.Wherein Tea Polyphenols, caffeine retain more than the 80% of fresh leaf, and chlorophyll retains about 55%, and vitamin damages
Lose the most less, the feature that soup look emerald green so green tea has, flavour convergence is strong.And the natural materials composition retained in green tea,
Anti-aging, anti-cancer, anticancer, sterilization, anti-inflammatory etc. all there is special-effect, less than other teas.Based on green tea many
Advantage, just receives the popular welcome of consumer as the green tea powder of a kind of instant tea kind.Due to green tea extensively by people's
Like, so green tea powder also arises at the historic moment.The development and application of green tea powder is the once leap in Chinese tea History of Science & Technology, is people
Tradition method of drink revolution.Its people of changing over drinks tea as eating tea, can absorb in tealeaves abundant more fully
Biological health composition, preferably play its health value.I.e. edible is brewed, it might even be possible to as food because it is not required to high temperature
Additive, flavoring and natural colouring matter, therefore define a kind of multiduty tealeaves new product.Although green tea powder has many good qualities,
But being as the development of society, the raising of people's levels of substance, the green tea taste that single green tea powder brews out can not meet people
Demand, increasing people likes the instant green tea of many tastes.
The manufacture method of a kind of instant tea powder of prior art, uses Microwave Extraction technology that tea raw material is carried out microwave irradiation extraction,
Extracting temperature is 20～50 DEG C, extraction time 5～10 minutes, and uses ultrafiltration and reverse osmosis concentration and freeze-drying to make.Should
The microwave irradiation extraction that method uses can destroy the fragrance of tea raw material, and reverse osmosis concentration also can make the perfume (or spice) of tea raw material further
Gas lose, so the tea smell bubbled out subtract light, quality is the most bad.And tea raw material selects black tea or selects green
Tea or other kinds of tea, the tea powder made by the most numerous and diverse operation only has the taste of a kind of former tealeaves, and taste is slightly
Aobvious single, increasingly can not meet the mouthfeel needs of different people.
Summary of the invention
The technical problem to be solved is, for the deficiencies in the prior art, it is provided that the preparation method of a kind of green tea powder, should
Method production process is simple；The green tea powder excellent taste made by the method, fragrant containing dense tea, and with natural fruit in tea perfume (or spice)
Real taste, storage is convenient.
The technical solution adopted for the present invention to solve the technical problems is: the preparation method of a kind of green tea powder, walks including following technique
Rapid:
(1) in the concentration condensed juice of green tea being made up of green tea more than 31%, add tussol and the lemon of 26% of 56%
Acid so that it is pH value adjusts to 5～6；
(2), non-acidproof composition in condensed juice of green tea is filtered, obtain acid green tea juice concentrating；
(3) in acid green tea juice concentrating, add sodium carbonate, again, make the pH value of acid green tea juice concentrating become 6～7；
(4), the acid green tea juice concentrating that pH value is 6～7 is spray-dried, i.e. prepares green tea powder.
Further, the condensed juice of green tea in described step (1) be green tea with water according to 1: 9～13 tea ratio in temperature
It is to soak after 19～37 minutes at 63～92 DEG C, obtained tea is extracted, then extract is cooled to immediately room temperature,
After 400 eye mesh screens filter, use semipermeable membrane to be concentrated into and prepare higher than the solid content of 30%.
Further, the acid green tea juice concentrating in described step (2) is by adding in the condensed juice of green tea after being cooled to room temperature
Concentration is 56% tussol and 26% citric acid, makes condensed juice of green tea pH value adjust to 5～6, then stands 40～70 points
Zhong Houzai is centrifuged under 4500 revs/min, discards precipitation and prepares.
Further, the green tea in described step (1) is the large leaf green tea rich in polyphenol, amino acid and caffeine.
The invention has the beneficial effects as follows: compared with prior art, use beneficial effects of the present invention to be mainly manifested in following side
Face: 1. add the tussol and 25% that concentration is 55% in the concentration condensed juice of green tea being made up of green tea more than 30%
Citric acid, with without or only add that to have acidity compared with citric acid big, but the feature that taste is soft, the tea bubbled out contains dense
Strong tea is fragrant, and with light natural fruits local flavor in tea perfume (or spice).2. the instant green tea powder made through simple four steps,
Loss of aroma is few, and dissolubility is good, is suitable for any drunk by people.3. the green tea powder of the present invention is suitable for drinking summer, have quench one's thirst refreshing
The feature of mouth, and do not damage oral cavity and tooth, metabolism is conducive to Amino Acid Absorption, does not accumulate fat, quite healthy.The greenest
Tea powder instant-drink, production process is simple, cost is relatively low, use and store the most very convenient.
Detailed description of the invention
Embodiment one
In extractor, put into the large leaf green tea 300kg rich in polyphenol, amino acid and caffeine, add the heat that temperature is 65 DEG C
Water 3000kg, soaks and is cooled to room temperature in 20 minutes, obtains the green tea liquid that clarification is bright after 400 eye mesh screens filter.Then,
Using semipermeable membrane to be concentrated into solid content in tea juice again is 35%.Add tussol and the citric acid of 25% of 55%, make
Its pH value adjusts to 4, stands 40 minutes, and original condensed juice of green tea becomes muddy and forms precipitation, is finally sunken to bottom, 4500
It is centrifuged under rev/min, discards precipitation, obtain acid green tea juice concentrating.Add sodium carbonate again the pH value of condensed juice of green tea is adjusted
Whole after 5, then it is spray-dried, finally prepares instant green tea powder.
Embodiment two
In extractor, put into the large leaf green tea 300kg rich in polyphenol, amino acid and caffeine, add the heat that temperature is 75 DEG C
Water 3200kg, soaks and is cooled to room temperature in 25 minutes, obtains the green tea liquid that clarification is bright after 400 eye mesh screens filter.Then,
Using semipermeable membrane to be concentrated into solid content in tea juice again is 36%.Add tussol and the citric acid of 25% of 55%, make
Its pH value adjusts to 4.2, stands 50 minutes, and original condensed juice of green tea becomes muddy and forms precipitation, is finally sunken to bottom,
It is centrifuged under 4500 revs/min, discards precipitation, obtain acid green tea juice concentrating.Add sodium carbonate again the pH of condensed juice of green tea
Value adjusts after 5.5, is then spray-dried, and finally prepares instant green tea powder.
Embodiment three
In extractor, put into the large leaf green tea 300kg rich in polyphenol, amino acid and caffeine, add the heat that temperature is 85 DEG C
Water 3400kg, soaks and is cooled to room temperature in 30 minutes, obtains the green tea liquid that clarification is bright after 400 eye mesh screens filter.Then,
Using semipermeable membrane to be concentrated into solid content in tea juice again is 38%.Add tussol and the citric acid of 25% of 55%, make
Its pH value adjusts to 4.5, stands 60 minutes, and original condensed juice of green tea becomes muddy and forms precipitation, is finally sunken to bottom,
It is centrifuged under 4500 revs/min, discards precipitation, obtain acid green tea juice concentrating.Add sodium carbonate again the pH of condensed juice of green tea
Value adjusts after 5.8, is then spray-dried, and finally prepares instant green tea powder.
Embodiment four
In extractor, put into the large leaf green tea 300kg rich in polyphenol, amino acid and caffeine, add the heat that temperature is 90 DEG C
Water 3600kg, soaks and is cooled to room temperature in 35 minutes, obtains the green tea liquid that clarification is bright after 400 eye mesh screens filter.Then,
Using semipermeable membrane to be concentrated into solid content in tea juice again is 40%.Add tussol and the citric acid of 25% of 55%, make
Its pH value adjusts to 5, stands 70 minutes, and original condensed juice of green tea becomes muddy and forms precipitation, is finally sunken to bottom, 4500
It is centrifuged under rev/min, discards precipitation, obtain acid green tea juice concentrating.Add sodium carbonate again the pH value of condensed juice of green tea is adjusted
Whole after 6, then it is spray-dried, finally prepares instant green tea powder.
The above is only four preferred embodiments of the present invention, is only used for illustrating the inventive concept of the present invention, not to this
The restriction of protection of inventors'rights, all changes utilizing this design that the present invention carries out unsubstantiality, the protection of the present invention all should be fallen into
Scope.
Claims (4)
1. the preparation method of a green tea powder, it is characterised in that: comprise the following steps that:
(1) in the concentration condensed juice of green tea being made up of green tea more than 31%, add tussol and the lemon of 26% of 56%
Acid so that it is pH value adjusts to 5～6；
(2), non-acidproof composition in condensed juice of green tea is filtered, obtain acid green tea juice concentrating；
(3) in acid green tea juice concentrating, add sodium carbonate, again, make the pH value of acid green tea juice concentrating become 6～7；
(4), the acid green tea juice concentrating that pH value is 6～7 is spray-dried, i.e. prepares green tea powder.
A kind of preparation method of green tea powder, it is characterised in that: the green tea in described step (1) concentrates
Juice is after green tea soaks 19～37 minutes according to the tea ratio of 1: 9～13 with water at temperature is 63～92 DEG C, by gained
To tea extract, then extract is cooled to immediately room temperature, after 400 eye mesh screens filter, uses semipermeable membrane to be concentrated into
Prepare higher than the solid content of 30%.
A kind of preparation method of green tea powder, it is characterised in that: the acid green tea in described step (2)
Inspissated juice be by the condensed juice of green tea after being cooled to room temperature add concentration be 56% tussol and 26% citric acid, make green tea
Inspissated juice pH value adjusts to 5～6, is centrifuged again, discards precipitation after then standing 40～70 minutes under 4500 revs/min
And prepare.
A kind of preparation method of green tea powder, it is characterised in that: the green tea in described step (1) is
Large leaf green tea rich in polyphenol, amino acid and caffeine.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410576697.7A CN105875958A (en) | 2014-10-14 | 2014-10-14 | Production method of green tea powder |
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| CN201410576697.7A CN105875958A (en) | 2014-10-14 | 2014-10-14 | Production method of green tea powder |
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| CN105875958A true CN105875958A (en) | 2016-08-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107183263A (en) * | 2017-06-26 | 2017-09-22 | 俞惠英 | A kind of green tea powder and preparation method thereof |
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2014
- 2014-10-14 CN CN201410576697.7A patent/CN105875958A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107183263A (en) * | 2017-06-26 | 2017-09-22 | 俞惠英 | A kind of green tea powder and preparation method thereof |
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Application publication date: 20160824 |
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| WD01 | Invention patent application deemed withdrawn after publication |