CN105265620A - Oolong purification method - Google Patents
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- CN105265620A CN105265620A CN201510745325.7A CN201510745325A CN105265620A CN 105265620 A CN105265620 A CN 105265620A CN 201510745325 A CN201510745325 A CN 201510745325A CN 105265620 A CN105265620 A CN 105265620A
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Abstract
The invention discloses an oolong purification method. The method is used for purifying oolong primary tea or refined tea and includes the concrete steps that 1, solvent water is used for humidifying tea leaves till water absorption saturation, the temperature of the tea leaves is controlled to be lower than or equal to 35 DEG C in the humidifying process, then the humidified tea leaves are placed in a vacuum environment, microwaves are applied to dry the tea leaves until the water content is smaller than or equal to 10%, and the temperature of the tea leaves is controlled to be lower than or equal to 80 DEG C; 2, the step 1 is repeated twice in total; 3, the tea leaves are winnowed and screened; 4, the tea leaves are baked until the water content is smaller than or equal to 6% to obtain needed purified oolong. On the premise of not damaging existing fragrance, taste and quality of the tea leaves, the tea leaves are thoroughly purified inside and outside through the method, and sanitary safety of the tea leaves is ensured.
Description
Technical field
The present invention relates to a kind of purification method of oolong tea, the purification method of especially a kind of oolong tea gross tea and finished product oolong tea loose tea.
Background technology
After fresh leaves of oolong tea is plucked, through shining green grass or young crops, cool green grass or young crops, wither, do green grass or young crops, complete, knead (or rolling), gross fire cures etc. makes gross tea at the beginning of operation, the operation such as then to pick, selection by winnowing, sufficient fire cure through picking and be processed into finished product oolong tea loose tea (calling smart tea in the following text).
Owing to directly paying system after leaf picking, the tealeaves made inevitably is attached with the pollutants such as dust, worm's ovum, birds and beasts ight soil, agriculture be residual.Especially agriculture is residual, is not only attached to tealeaves surface, also has part and is absorbed by tealeaves.Although people mostly can first rinse with boiling water before drinking oolong tea, but because oolong tea gross tea and finished product oolong tea loose tea are all in streak, the surface of tealeaves 90% is wrapped in interior and becomes inner surface, boiling water rinses the pollutant can only washing 10% tealeaves surface attachment off, thus the residual meeting of agriculture still having the pollutant on 90% tealeaves surface and be preferentially absorbed into tealeaves inside enters millet paste, and threatens the healthy of drinking person.
Summary of the invention
For prior art Problems existing, the object of the present invention is to provide a kind of purification method of oolong tea, to remove the pollutant of oolong tea surface attachment, the agriculture of removing tealeaves inside is residual, ensures the safe and sanitary of oolong tea.
For achieving the above object, technical solution of the present invention is as follows:
A purification method for oolong tea, the method is used for carrying out purified treatment to oolong tea gross tea or finished product oolong tea loose tea, and concrete steps are:
1) first utilizing aqueous solvent that tealeaves humidification is saturated to absorbing water, then the tealeaves after humidification being placed in vacuum environment in time, and by applying microwave by tea-drying to moisture content≤10%;
Control tealeaves temperature≤35 DEG C in humidification, control aqueous solvent simultaneously and add speed and addition, avoid tea juice to run off; Time dry, by regulating the vacuum of vacuum environment, microwave power and/or microwave continuous application time, to control tealeaves temperature≤80 DEG C;
2) step 1) repeated several times altogether, wherein solvent for use water is the pure water being added with pesticide degradable enzyme at least one times, and all the other each solvent for use water are pure water, or, in described several times, at every turn all to be added with the pure water of pesticide degradable enzyme as aqueous solvent;
3) selection by winnowing, screening are carried out to tealeaves, remove pollutant residue;
4) by tea baking to moisture content≤6%, cure in the middle of process and impact with temperature raising in short-term, finally obtain required purification oolong tea, the number of times that duration and curing that temperature raising is in short-term impacted at every turn temperature raising in short-term of inserting in process is impacted is determined according to the fragrance of tealeaves;
Wherein, step 3), 4) order can exchange.
Further, described pesticide degradable enzyme is organic phosphorus degrading enzyme.
Further, described pesticide degradable enzyme is than sub-enzyme, than the addition of sub-enzyme is: 100 liters of pure water add >=0.5 gram of sub-enzyme dry powder of ratio.
Further, the addition of the sub-enzyme of described ratio is: 100 liters of pure water add 1-6 grams of sub-enzyme dry powder of ratio.
Further, in described step 1), during described drying, control tealeaves temperature≤60 DEG C.
Further, in described step 1), the humidification of tealeaves is specially: first spray aqueous solvent to tealeaves and mix thoroughly or utilize atomization aqueous solvent to infiltrate tealeaves, then the tealeaves after adding water being placed in vacuum environment and leaving standstill.
Further, in described step 1), the humidification of tealeaves is specially: tealeaves to be humidified is placed in vacuum environment, in vacuum environment, sprays aqueous solvent to tealeaves and mix rear leaving standstill thoroughly, or leaving standstill after utilizing atomization aqueous solvent to infiltrate tealeaves.
Further, described oolong tea is Anxi oolong, in described step 4), described in the basic stoving temperature cured in process be≤85 DEG C, described temperature raising impact temperature is in short-term≤105 DEG C, at every turn temperature raising in short-term impact duration be≤40 minutes.
Further, described oolong tea is Taiwan oolong, in described step 4), described in the basic stoving temperature cured in process be≤80 DEG C, described temperature raising impact temperature is in short-term≤100 DEG C, at every turn temperature raising in short-term impact duration be≤60 minutes.
Further, described oolong tea is the north of Fujian Province oolong, in described step 4), described in the basic stoving temperature cured in process be≤95 DEG C, described temperature raising impact temperature is in short-term≤120 DEG C, at every turn temperature raising in short-term impact duration be≤60 minutes.
Further, described oolong tea is Wuyi cliff tea, in described step 4), described in the basic stoving temperature cured in process be≤105 DEG C, described temperature raising impact temperature is in short-term≤135 DEG C, at every turn temperature raising in short-term impact duration be≤120 minutes.
Further, described oolong tea is Guangdong oolong, in described step 4), described in the basic stoving temperature cured in process be≤120 DEG C, described temperature raising impact temperature is in short-term≤140 DEG C, at every turn temperature raising in short-term impact duration be≤60 minutes.
It is residual that pollutant on tealeaves comprises the dust, worm's ovum, birds and beasts ight soil, the agriculture that are attached to tealeaves surface, also comprises the agriculture being absorbed into tealeaves inside residual; Oolong tea gross tea and finished product oolong tea loose tea are all in streak, and the surface of tealeaves 90% is wrapped and becomes inner surface.Purification method of the present invention first by oolong tea gross tea or finished product oolong tea loose tea humidification saturated to absorbing water, streak tealeaves is launched, makes the surface of tealeaves all become outer surface, for the stripping of surface contaminant creates condition.Heating using microwave is body heating, namely be heated inside and outside tealeaves simultaneously, along with the applying of microwave, from inside to outside move after the moisture being absorbed into tealeaves inside is heated, the hydrone moving to tealeaves surface in a large number has then been actuated the stripping of tealeaves surface contaminant, has been come off simultaneously.The degraded of agricultural chemicals is except utilizing except digestive enzyme degrades, also comprise thermal decomposition and volatilization, temperature is higher, thermal decomposition is more abundant, volatilization is then except temperature influence, the more important thing is that the reduction evaporation rate along with ambient pressure environment will be accelerated greatly, thus, vacuum environment and heating using microwave facilitate the degraded that tealeaves is surperficial and inner agriculture is residual greatly.Heating using microwave also promotes Pesticides in Tea medicine chemical molecular from the stripping tealeaves cell, the hydrone from inside to outside moved then achieve the product after by residual for agriculture molecule and degraded thereof from the inner transport to tealeaves surface of tealeaves, come off.Selection by winnowing, screening operation achieve the final removing to the pollutant come off from tealeaves surface.
Pesticide degradable enzyme is scientific research personnel is the Pesticide Residue solved on agricultural product and the biologic product developed specially, this kind of preparation comprise Beijing Schengenbiya Bioengineering Technology Co., Ltd. release than sub-pesticide degradable enzyme (being called for short than sub-enzyme), the Ma Dier pesticide degradable enzyme (being called for short Ma Dier enzyme) that Beijing ZTNH Enzyme Preparation Co., Ltd. releases, the pesticide degradable enzyme (in abbreviation section's enzyme) that Liaoning Zhongke Biological Engineering Co., Ltd. releases, the green core pesticide degradable enzyme (being called for short green core enzyme) that Beijing Jianong New Trading Development Co., Ltd. releases, etc.For than sub-enzyme, this digestive enzyme is organic phosphorus degrading enzyme, to pesticide molecule efficient degradation, and can not only can not cause secondary pollution to environment.
Previously, once someone utilized than sub-enzyme to purify tealeaves, or spray is shone on the fresh leaves of tea plant not yet plucked, or the green tea fresh leaves plucked for purifying object, especially the latter, adopt the long-time pesticide molecule soaking fresh interlobar part of degrading, outside, these purification styles not only production efficiency are low, lower than the utilization rate of sub-enzyme, and there will be similar " rain cyanines " phenomenon.Long-term tea making facts have proved, fresh leaf moisture content is too high, easily burntly when killing cyanines becomes, the tea product made, puckery and thin, and water colour is muddy.If fresh leaf, in purification run or handling process, makes fresh leaf be subject to some damages.This damage is that injured or broken or pressurized occur sultry, usually can play irrational fermentation before making, makes the dried-up or red stain of fresh leaf, is namely commonly referred to as " dead leaf ", affects tea-making quality very large.Make oolong tea, should control fresh leaf by its technological requirement and gradually carry out " partly fermentation " effect, if fresh leaf damaged, further process is with regard to difficulty very.Be therefore wish to get the good tea finished product of quality, the process of fresh leaf being needed very careful, exhaust one's ability, avoid damage.Therefore, at making oolong tea, rain cyanines and fresh leaf hurt are all the thing of avoiding greatly.
The aqueous solvent containing digestive enzyme is adopted to purify the gross tea of drying or finished product loose tea, because fresh leaf wax coat is destroyed, dry tea water imbibition increases, digestive enzyme can arrive each corner and the tealeaves inside on tealeaves surface fast, and under vacuum conditions, can not only discharge the gas of tealeaves adsorption, further accelerated solvent water soaking tealeaves, digestive enzyme obtains and fully, accurately utilizes.Therefore, with directly carry out compared with purified treatment to fresh tea leaf, the inventive method both avoided " rain cyanines " and fresh leaf damages the negative effect brought, in turn ensure that the production efficiency that tealeaves purifies, ensure that making full use of of digestive enzyme, and ensure that effective degraded of the inside and outside residual pesticide molecule of tealeaves.
The distinctive organoleptic quality of oolong tea is just formed at gross tea or smart tea stage.After dry tea absorbs water again, if run into suitable temperature again under aerobic state, further biological oxidation (being commonly called as " fermentation ") will be there is in tealeaves, and change oolong tea gross tea or the existing fragrance of smart tea, flavour.Therefore, in order to reduce this impact as far as possible, during humidification of the present invention, 1. controlling the addition of aqueous solvent, avoiding adding dilutional hyponatremia and causing tea juice to run off; 2. control tealeaves temperature, avoid or reduce tealeaves water suction its inside rear as far as possible the biochemical reactions such as non-enzymatic oxidation, microbial growth occur.Tealeaves to be humidified is placed in vacuum environment, and in vacuum environment, spray aqueous solvent or utilize atomization aqueous solvent to infiltrate, first vacuumizing and exhausting, rear infiltration, the effect that vacuumizes again can be produced, not only be conducive to the gas of discharging tealeaves absorption, and enable water immerse tealeaves inside fast, more easily infiltrate whole tealeaves, shorten humidification periods, reduce the biochemical reaction in tealeaves.In vacuum environment, humidification is with standing, reduces the oxygen content in environment, can suppress the further generation of the various biological oxidations of aerobic participation in tealeaves, is to keep the original quality of tealeaves to create necessary condition.
By the gross tea of drying or smart tea humidification again, the fragrance of tealeaves, flavour can be weakened.For this reason, the present invention cures in process the later stage, is specially provided with temperature raising in short-term and impacts, utilize the tea aroma of temperature raising shock-excitation in short-term, and strengthening tea flavour, makes the fragrance of tealeaves, flavour returns to the state before purification, even stronger.And after tealeaves moisture content≤10%, even if under short time high temperature, also can not there is undesirable biochemical reaction and affect the quality of tealeaves in tealeaves inside.
In a word, the inventive method, under not damaging tealeaves and having the prerequisite of fragrance, flavour, quality, achieves the thorough purification inside and outside to tealeaves, ensure that the safe and sanitary of tealeaves.
Detailed description of the invention
Below in conjunction with embodiment, the present invention will be further described.
embodiment 1
Purification object: Anxi, Fujian oolong tea gross tea or finished product loose tea
Purifying step is as follows:
1) first, gross tea or finished product loose tea are poured into bamboo sieve and make thinner, spray aqueous solvent and carry out humidification;
For avoiding aqueous solvent fountain height too much, causing tea juice to run off, spraying solvent water and repeatedly carrying out, all mix thoroughly after each water spray and beat heap, to make moisture content be fully drawn in tealeaves, until tealeaves water suction is saturated.After each water spray, all timely being moved to by tealeaves in vacuum environment leaves standstill, and controls tealeaves temperature≤25 DEG C simultaneously;
To tealeaves humidification except spraying aqueous solvent, leave standstill after atomization aqueous solvent also can be utilized to be infiltrated by tealeaves;
Then, the tealeaves after humidification is placed in vacuum environment in time, and by applying microwave by tea-drying to moisture content≤10%;
In dry run, by regulating vacuum and the microwave power of vacuum environment, to control tealeaves temperature≤60 DEG C, to avoid undesirable biochemical reaction occurs in tealeaves, and affecting fragrance, the flavour of tealeaves, affecting the quality of tealeaves.Certainly, except regulating microwave power, can also adopt simultaneously intermittently apply microwave, and control the mode of each microwave continuous application time, control tealeaves temperature≤60 DEG C;
2) step 1) altogether in triplicate, and during first time humidification, solvent for use water is made up of the pure water be added with than sub-enzyme, is: 100 liters of pure water add 1 gram of sub-enzyme dry powder of ratio than the addition of sub-enzyme; For the second time, third time all carries out humidification using pure water as aqueous solvent to tealeaves;
The object of step 1) repeated several times is to ensure that the pollutant of tealeaves surface attachment is reliably peeled off, come off, and makes residual the obtaining of the inner agriculture of tealeaves degrade as far as possible thoroughly and remove;
Certainly, first time also can carry out humidification as aqueous solvent to tealeaves by pure water, and second time carries out humidification as aqueous solvent to tealeaves than the pure water of sub-enzyme to be added with, and third time still carries out humidification using pure water as aqueous solvent to tealeaves.And, can also first time, second time all to be added with pure water than sub-enzyme as aqueous solvent, third time is using pure water as aqueous solvent; Or, for the first time, second time all using pure water as aqueous solvent, third time is to be added with pure water than sub-enzyme as aqueous solvent.Can also first, second, third 3 times all to be added with pure water than sub-enzyme as aqueous solvent;
Adding than the object of sub-enzyme is to make the residual abundant degraded of agriculture, therefore, when step 1) repeats, need to adopt the pure water be added with than sub-enzyme as aqueous solvent at least one times.Further, step 1) repeat number of times, can determine according to the effect after tea kinds, process than the addition of sub-enzyme in pure water.When only adopting the pure water that is once added with than sub-enzyme as aqueous solvent, the addition than sub-enzyme suitably can be improved.Can select in the scope that 100 liters of pure water add the sub-enzyme dry powder of 0.5-6 grams of ratios than the addition of sub-enzyme, usually can not add 6 grams of sub-enzyme dry powder of ratio more than 100 liters of pure water;
3) selection by winnowing, screening are carried out to tealeaves, remove pollutant residue;
4) by tea baking to moisture content≤6%, the basic stoving temperature cured in process is 85 DEG C, applies that at least 2 temperature are 100 DEG C, the temperature raising in short-term of 35 minutes duration is impacted period, finally obtains required purification gross tea or finished product loose tea;
The teas (degree of fermentation is 30-60%) of oolong Camellia half fermentation, with regard to its large class, point work " four large oolong " i.e. Anxi oolong, Taiwan oolong, Guangdong oolong, the north of Fujian Province oolongs.Between each kind, organoleptic quality otherness is large.The selection of its stoving temperature is the most complicated, should do specifically certainly to select according to the boiling point etc. of the attenuation degree of each kind, the requirement of fiery merit, aromatic substance.Usually can cure for a long time 80 ~ 120 DEG C of scopes, high temperature is interval at 100-140 degree, and 15 minutes-1 hour time is not etc.The usual impact temperature higher time is shorter, but requires to take, as Anxi oolong, Taiwan oolong generic delicate fragrance type, delicate fragrance type kind depending on different cultivars and fiery merit, aromatic substance boiling point is low, do not require that fiery merit is high, then the high temperature upper limit can be set to 100 degree, holds the attack time of continuing to be no more than 45 minutes.As the Wuyi cliff tea in the oolong of the north of Fujian Province belongs to Luzhou-flavor, sharp odor type, mellow type kind, then the high temperature upper limit can be set to 135 degree, and holding the attack time of continuing can at 2 hour.Odor type kind as ripe in Guangdong oolong, then the high temperature upper limit can establish 140 degree, holds the attack time of continuing to be no more than 1 hour;
Curing in process and applying the object that temperature raising in short-term impacts is excite tea aroma, and strengthening tea flavour, makes up gross tea or finished product loose tea because adding wet water absorbent by the fragrance, the flavour that weaken.The duration that each temperature raising is in short-term impacted and the whole number of times curing the impact of temperature raising in short-term of inserting in process are determined according to the fragrance of tealeaves;
The temperature that temperature raising is in short-term impacted is higher, and the duration that each temperature raising is impacted should be shorter.The duration that each temperature raising is impacted is the longest no more than 30-120 minutes;
It is pointed out that above-mentioned steps 3 at this) and 4) order can exchange.Certainly, first remove pollutant residue, then carry out high bake temperature, contribute to the secondary pollution of preventing pollution thing.
embodiment 2
Purification object: Wuyi cliff tea gross tea or finished product loose tea
Purifying step is as follows:
1) first, gross tea or finished product loose tea are inserted in vacuum environment, in vacuum environment, spray aqueous solvent or utilize atomization aqueous solvent infiltrate tealeaves and leave standstill, control tealeaves temperature≤30 DEG C, until tealeaves water suction is saturated simultaneously;
Then, the tealeaves after humidification is placed in vacuum environment, and by applying microwave by tea-drying to moisture content≤10%;
In dry run, by regulating vacuum and the microwave power of vacuum environment, to control tealeaves temperature≤70 DEG C;
2) step 1) repeats secondary altogether.During first time humidification, solvent for use water is made up of the pure water be added with than sub-enzyme, is: 100 liters of pure water add 2 grams of sub-enzyme dry powder of ratio than the addition of sub-enzyme; Second time carries out humidification using pure water as aqueous solvent to tealeaves;
3) selection by winnowing, screening are carried out to tealeaves, remove pollutant residue;
4) by tea baking to moisture content≤6%, the basic stoving temperature cured in process is 105 DEG C, applies that at least 2 temperature are 135 DEG C, the temperature raising in short-term of 120 minutes duration is impacted period, finally obtains required purification gross tea or finished product loose tea;
Wuyi cliff tea belongs to the kind that in half fermentation oolong tea, attenuation degree is heavier, at the bottom of leaf blue or green brown with camerlsed ", soup look generally in Huang in be with red or red middle band yellow, be commonly called as " amber ", usually require that foot is fiery, moderate heat.
embodiment 3
Purification object: Guangdong oolong tea gross tea or finished product loose tea
Purifying step is as follows:
1) first, gross tea or finished product loose tea are inserted in vacuum environment, in vacuum environment, spray aqueous solvent or utilize atomization aqueous solvent soak tealeaves and leave standstill, control tealeaves temperature≤35 DEG C simultaneously;
Then, the tealeaves after humidification is placed in vacuum environment, and by applying microwave by tea-drying to moisture content≤10%;
In dry run, by regulating vacuum and the microwave power of vacuum environment, to control tealeaves temperature≤80 DEG C;
2) step 1) altogether in triplicate.When first time and second time humidification, solvent for use water is formed by the pure water be added with than sub-enzyme, is: 100 liters of pure water add 0.5 gram of sub-enzyme dry powder of ratio than the addition of sub-enzyme; Third time carries out humidification using pure water as aqueous solvent to tealeaves;
3) selection by winnowing, screening are carried out to tealeaves, remove pollutant residue;
4) by tea baking to moisture content≤6%, the basic stoving temperature cured in process is 120 DEG C, applies that at least 2 temperature are 140 DEG C, the temperature raising in short-term of 60 minutes duration is impacted period, finally obtains required purification gross tea or finished product loose tea.
embodiment 4
Purification object: Taiwan oolong tea gross tea or finished product loose tea
Purifying step is as follows:
1) first, gross tea or finished product loose tea are inserted in vacuum environment, in vacuum environment, spray aqueous solvent or utilize atomization aqueous solvent soak tealeaves and leave standstill, control tealeaves temperature≤20 DEG C simultaneously;
Then, the tealeaves after humidification is placed in vacuum environment, and by applying microwave by tea-drying to moisture content≤8%;
In dry run, by regulating vacuum and the microwave power of vacuum environment, to control tealeaves temperature≤50 DEG C;
2) step 1) altogether in triplicate.First time, pure water carried out humidification as aqueous solvent to tealeaves, and during second time humidification, solvent for use water is made up of the pure water be added with than sub-enzyme, is: 100 liters of pure water add 1 gram of sub-enzyme dry powder of ratio than the addition of sub-enzyme; Third time carries out humidification using pure water as aqueous solvent to tealeaves;
3) selection by winnowing, screening are carried out to tealeaves, remove pollutant residue;
4) by tea baking to moisture content≤6%, the basic stoving temperature cured in process is 80 DEG C, applies that at least 2 temperature are 100 DEG C, the temperature raising in short-term of 40 minutes duration is impacted period, finally obtains required purification gross tea or finished product loose tea.
embodiment 5
Purification object: Wuyi cliff tea gross tea or finished product loose tea
Purifying step is as follows:
1) first, gross tea or finished product loose tea are inserted in vacuum environment, in vacuum environment, spray aqueous solvent water or utilize atomization aqueous solvent infiltrate tealeaves and leave standstill, control tealeaves temperature≤30 DEG C, until tealeaves water suction is saturated simultaneously;
Then, the tealeaves after humidification is placed in vacuum environment, and by applying microwave by tea-drying to moisture content≤8%;
In dry run, by regulating vacuum and the microwave power of vacuum environment, to control tealeaves temperature≤80 DEG C;
2) step 1) repeats secondary altogether.During first time humidification, solvent for use water is made up of the pure water being added with Ma Dier enzyme, and the addition of Ma Dier enzyme is: 100 liters of pure water add 2 Ke Madier enzyme dry powder; Second time carries out humidification using pure water as aqueous solvent to tealeaves;
3) selection by winnowing, screening are carried out to tealeaves, remove pollutant residue;
4) by tea baking to moisture content≤6%, the basic stoving temperature cured in process is 110 DEG C, applies that at least 2 temperature are 130 DEG C, the temperature raising in short-term of 40 minutes duration is impacted period, finally obtains required purification gross tea or finished product loose tea.
embodiment 6
Purification object: Taiwan oolong tea gross tea or finished product loose tea
Purifying step is as follows:
1) first, gross tea or finished product loose tea are inserted in vacuum environment, in vacuum environment, spray aqueous solvent or utilize atomization aqueous solvent soak tealeaves and leave standstill, control tealeaves temperature≤20 DEG C simultaneously;
Then, the tealeaves after humidification is placed in vacuum environment, and by applying microwave by tea-drying to moisture content≤8%;
In dry run, by regulating vacuum and the microwave power of vacuum environment, to control tealeaves temperature≤50 DEG C;
2) step 1) altogether in triplicate.First time, pure water carried out humidification as aqueous solvent to tealeaves, and during second time humidification, solvent for use water is made up of the pure water being added with middle section enzyme, and the addition of middle section enzyme is: 100 liters of pure water add 2 Ke Zhong section enzyme dry powder; Third time carries out humidification using pure water as aqueous solvent to tealeaves;
3) selection by winnowing, screening are carried out to tealeaves, remove pollutant residue;
4) by tea baking to moisture content≤6%, the basic stoving temperature cured in process is 80 DEG C, applies that at least 2 temperature are 100 DEG C, the temperature raising in short-term of 40 minutes duration is impacted period, finally obtains required purification gross tea or finished product loose tea.
Above-mentioned example is just for illustration of the present invention; embodiments of the present invention are not limited to these examples, and the various detailed description of the invention meeting inventive concept that those skilled in the art make according to the principle introduced in description of the present invention are all within protection scope of the present invention.
Claims (12)
1. a purification method for oolong tea, is characterized in that, the method is used for carrying out purified treatment to oolong tea gross tea or finished product oolong tea loose tea, and concrete steps are:
1) first utilizing aqueous solvent that tealeaves humidification is saturated to absorbing water, then the tealeaves after humidification being placed in vacuum environment in time, and by applying microwave by tea-drying to moisture content≤10%;
Control tealeaves temperature≤35 DEG C in humidification, control aqueous solvent simultaneously and add speed and addition, avoid tea juice to run off; Time dry, by regulating the vacuum of vacuum environment, microwave power and/or microwave continuous application time, to control tealeaves temperature≤80 DEG C;
2) step 1) repeated several times altogether, wherein solvent for use water is the pure water being added with pesticide degradable enzyme at least one times, and all the other each solvent for use water are pure water, or, in described several times, at every turn all to be added with the pure water of pesticide degradable enzyme as aqueous solvent;
3) selection by winnowing, screening are carried out to tealeaves, remove pollutant residue;
4) by tea baking to moisture content≤6%, cure in the middle of process and impact with temperature raising in short-term, finally obtain required purification oolong tea, the number of times that duration and curing that temperature raising is in short-term impacted at every turn temperature raising in short-term of inserting in process is impacted is determined according to the fragrance of tealeaves;
Wherein, step 3), 4) order can exchange.
2. purification method as claimed in claim 1, it is characterized in that, described pesticide degradable enzyme is organic phosphorus degrading enzyme.
3. purification method as claimed in claim 1, it is characterized in that, described pesticide degradable enzyme is than sub-enzyme, than the addition of sub-enzyme is: 100 liters of pure water add >=0.5 gram of sub-enzyme dry powder of ratio.
4. purification method as claimed in claim 3, it is characterized in that, the addition of the sub-enzyme of described ratio is: 100 liters of pure water add 1-6 grams of sub-enzyme dry powder of ratio.
5. purification method as claimed in claim 1, is characterized in that, in described step 1), during described drying, controls tealeaves temperature≤60 DEG C.
6. purification method as claimed in claim 1, it is characterized in that, in described step 1), the humidification of tealeaves is specially: first spray aqueous solvent to tealeaves and mix thoroughly or utilize atomization aqueous solvent to infiltrate tealeaves, then the tealeaves after adding water being placed in vacuum environment and leaving standstill.
7. purification method as claimed in claim 1, is characterized in that, in described step 1), the humidification of tealeaves is specially: tealeaves to be humidified is placed in vacuum environment, in vacuum environment, spray aqueous solvent to tealeaves and mix rear leaving standstill thoroughly, or leaving standstill after utilizing atomization aqueous solvent to infiltrate tealeaves.
8. purification method as claimed in claim 1, it is characterized in that, described oolong tea is Anxi oolong, in described step 4), the described basic stoving temperature cured in process is≤85 DEG C, and described temperature raising impact temperature is in short-term≤105 DEG C, and the duration that temperature raising is in short-term impacted at every turn is≤40 minutes.
9. purification method as claimed in claim 1, it is characterized in that, described oolong tea is Taiwan oolong, in described step 4), the described basic stoving temperature cured in process is≤80 DEG C, and described temperature raising impact temperature is in short-term≤100 DEG C, and the duration that temperature raising is in short-term impacted at every turn is≤60 minutes.
10. purification method as claimed in claim 1, it is characterized in that, described oolong tea is the north of Fujian Province oolong, in described step 4), the described basic stoving temperature cured in process is≤95 DEG C, described temperature raising impact temperature is in short-term≤120 DEG C, and the duration that temperature raising is in short-term impacted at every turn is≤60 minutes.
11. purification methods as claimed in claim 1, it is characterized in that, described oolong tea is Wuyi cliff tea, in described step 4), the described basic stoving temperature cured in process is≤105 DEG C, described temperature raising impact temperature is in short-term≤135 DEG C, and the duration that temperature raising is in short-term impacted at every turn is≤120 minutes.
12. purification methods as claimed in claim 1, it is characterized in that, described oolong tea is Guangdong oolong, in described step 4), the described basic stoving temperature cured in process is≤120 DEG C, described temperature raising impact temperature is in short-term≤140 DEG C, and the duration that temperature raising is in short-term impacted at every turn is≤60 minutes.
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|---|---|---|---|---|
| CN103071639A (en) * | 2013-01-11 | 2013-05-01 | 青岛海馨茶业有限公司 | Method for cleaning green tealeaves |
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2015
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103071639A (en) * | 2013-01-11 | 2013-05-01 | 青岛海馨茶业有限公司 | Method for cleaning green tealeaves |
Non-Patent Citations (1)
| Title |
|---|
| 苏兴茂: "《烘焙技术在闽南乌龙茶中的应用与探索》", 《福建茶叶》 * |
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