CN109198574A - A kind of tea aroma material collection method and tea aroma substance obtained - Google Patents
A kind of tea aroma material collection method and tea aroma substance obtained Download PDFInfo
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- CN109198574A CN109198574A CN201811198194.5A CN201811198194A CN109198574A CN 109198574 A CN109198574 A CN 109198574A CN 201811198194 A CN201811198194 A CN 201811198194A CN 109198574 A CN109198574 A CN 109198574A
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- 239000003960 organic solvent Substances 0.000 claims abstract description 61
- 238000001764 infiltration Methods 0.000 claims abstract description 58
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- 239000012466 permeate Substances 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 13
- 238000001914 filtration Methods 0.000 claims description 12
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- 238000005516 engineering process Methods 0.000 description 6
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- 239000004215 Carbon black (E152) Substances 0.000 description 3
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- GLZPCOQZEFWAFX-YFHOEESVSA-N Geraniol Natural products CC(C)=CCC\C(C)=C/CO GLZPCOQZEFWAFX-YFHOEESVSA-N 0.000 description 3
- 239000005792 Geraniol Substances 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000469 ethanolic extract Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
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- 229930195733 hydrocarbon Natural products 0.000 description 3
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- FQTLCLSUCSAZDY-UHFFFAOYSA-N (+) E(S) nerolidol Natural products CC(C)=CCCC(C)=CCCC(C)(O)C=C FQTLCLSUCSAZDY-UHFFFAOYSA-N 0.000 description 2
- ZCHHRLHTBGRGOT-SNAWJCMRSA-N (E)-hex-2-en-1-ol Chemical compound CCC\C=C\CO ZCHHRLHTBGRGOT-SNAWJCMRSA-N 0.000 description 2
- 235000014143 Camellia sinensis var assamica Nutrition 0.000 description 2
- 240000008441 Camellia sinensis var. assamica Species 0.000 description 2
- 241000723346 Cinnamomum camphora Species 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- FQTLCLSUCSAZDY-ATGUSINASA-N Nerolidol Chemical compound CC(C)=CCC\C(C)=C\CC[C@](C)(O)C=C FQTLCLSUCSAZDY-ATGUSINASA-N 0.000 description 2
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- JXBSHSBNOVLGHF-UHFFFAOYSA-N 10-cis-Dihydrofarnesen Natural products CC=C(C)CCC=C(C)CCC=C(C)C JXBSHSBNOVLGHF-UHFFFAOYSA-N 0.000 description 1
- 235000010254 Jasminum officinale Nutrition 0.000 description 1
- 240000005385 Jasminum sambac Species 0.000 description 1
- XMLSXPIVAXONDL-PLNGDYQASA-N Jasmone Chemical compound CC\C=C/CC1=C(C)CCC1=O XMLSXPIVAXONDL-PLNGDYQASA-N 0.000 description 1
- 241000533950 Leucojum Species 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- JSNRRGGBADWTMC-UHFFFAOYSA-N alpha-farnesene Natural products CC(C)=CCCC(C)=CCCC(=C)C=C JSNRRGGBADWTMC-UHFFFAOYSA-N 0.000 description 1
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- UZFLPKAIBPNNCA-UHFFFAOYSA-N alpha-ionone Natural products CC(=O)C=CC1C(C)=CCCC1(C)C UZFLPKAIBPNNCA-UHFFFAOYSA-N 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- SVURIXNDRWRAFU-OGMFBOKVSA-N cedrol Chemical compound C1[C@]23[C@H](C)CC[C@H]3C(C)(C)[C@@H]1[C@@](O)(C)CC2 SVURIXNDRWRAFU-OGMFBOKVSA-N 0.000 description 1
- 229940026455 cedrol Drugs 0.000 description 1
- PCROEXHGMUJCDB-UHFFFAOYSA-N cedrol Natural products CC1CCC2C(C)(C)C3CC(C)(O)CC12C3 PCROEXHGMUJCDB-UHFFFAOYSA-N 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 1
- XYIBRDXRRQCHLP-UHFFFAOYSA-N ethyl acetoacetate Chemical compound CCOC(=O)CC(C)=O XYIBRDXRRQCHLP-UHFFFAOYSA-N 0.000 description 1
- 150000002240 furans Chemical class 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009396 hybridization Methods 0.000 description 1
- 235000020344 instant tea Nutrition 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- SVURIXNDRWRAFU-UHFFFAOYSA-N juniperanol Natural products C1C23C(C)CCC3C(C)(C)C1C(O)(C)CC2 SVURIXNDRWRAFU-UHFFFAOYSA-N 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical group CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 1
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
- XMLSXPIVAXONDL-UHFFFAOYSA-N trans-jasmone Natural products CCC=CCC1=C(C)CCC1=O XMLSXPIVAXONDL-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L27/00—Spices; Flavouring agents or condiments; Artificial sweetening agents; Table salts; Dietetic salt substitutes; Preparation or treatment thereof
- A23L27/10—Natural spices, flavouring agents or condiments; Extracts thereof
- A23L27/11—Natural spices, flavouring agents or condiments; Extracts thereof obtained by solvent extraction
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
Landscapes
- Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Tea And Coffee (AREA)
Abstract
This application involves a kind of tea aroma material collection methods, comprising the following steps: aqueous solutions of organic solvent extraction step carries out multistage extraction at different temperatures to tealeaves with aqueous solutions of organic solvent, obtains tealeaves organic solvent extracting solution；With infiltration evaporation step, multistage infiltration vaporization is carried out to tealeaves organic solvent extracting solution at different temperatures with infiltrating and vaporizing membrane, obtains tea aroma substance organic solvent extracting solution.The tea aroma material collection method and process of the application is simple and convenient to operate, and operating condition is mild, and production cost is low.Obtained tea aroma mixture of substances can be used for the field of food such as tea beverage, tea flavour cake, milk tea product.
Description
Technical field
The invention belongs to tea processing technical fields, and in particular to a kind of tea aroma material collection method and tea obtained
Leaf aroma substance.
Background technique
China is not only Chan Cha big country and Tea Consumption big country.Tea products are expanded to by initial tealeaves and smear tea, tea
The converted products such as powder, tea concentrate, are applied to the fields such as beverage/food, bakery, and the requirement to tea flavouring essence quality is also more next
It is higher.Presently commercially available Aromatic substances are largely that some aromatic chemical synthesis substances reconcile in proportion, safety
Property has been unable to meet the requirement of the food-safe health of people.The natural tea perfume extract extracted from tealeaves increasingly obtains people
Favor.
Aroma substance complicated component in tealeaves mainly includes the volatilization such as alcohols, esters, aldehydes, ketone, alkene terpene organic matter
Property organic matter.Currently, detecting up to more than 700 kinds of the aroma substance contained in tealeaves, the fragrance composition of single tealeaves also has several
Ten kinds, in addition up to hundreds of.The fragrance of tealeaves is composed of by a certain percentage a variety of aroma components, the kind of aroma component
The change of class and content will affect tea aroma quality.It is no lack of low boiling point, heat-sensitive ingredients in tea aroma substance, at high temperature
Easily cracking, changes fragrance.How efficiently and completely extract fragrance component original in tealeaves, then use high-efficient simple
Method be enriched with these fragrance components, be the key point for making natural tea perfume extract.
Currently, the report for having extraction in some patented technologies, being enriched with natural tea essence.For example, CN 101928639
A discloses a kind of natural tea essence and its enrichment method prepared with tealeaves, wherein using aqueous solution as extractant, using decompression
It distills, the method for freeze concentration, but since tea essence is organic matter, the extraction efficiency of extraction with aqueous solution agent is bad.CN
102504954 A disclose the method that essence is extracted from tealeaves, wherein using supercritical CO2It extracts and is enriched with, extract
Process the high requirements on the equipment increases production cost.
Pervaporation Technology is a kind of novel membrane separation technique, in fields such as extraction, rectifying, water removal, organic solvent separation
It is widely used.Has the report using seepage slope technology recycling tea perfume gas in some papers and patented technology.For example, Zhang Huijuan
(" research of infiltrating and vaporizing membrane recycling tea aroma substance ", " market conditions ", 2013 (29): 275-275) propose to select the recycling of PDMS film
Fragrance, but only obtain the conclusion of feasibility.107519770 A of CN discloses a kind of nano hybridization mixed-matrix infiltrating and vaporizing membrane
Application in separating volatile aromatic substance, the film can be used for the property of will volatilize aromatic substance and isolate from tea extract
Come, but the operating condition of infiltration evaporation and the tea aroma substance of extraction are only tentative.103385338 A of CN discloses one
The recovery method of fragrance component in kind instant tea powder production technology, wherein the millet paste liquid obtained to extraction is filtered, after ultrafiltration
It is concentrated in vacuo, feed liquid of the condensed water generated during vacuum concentration as infiltration evaporation, carries out infiltrating and vaporizing membrane point
From the tea aroma object of obtained concentration is spray-dried to be recycled in tea powder, it is seen that the patent does not utilize infiltration evaporation
Film directly separates millet paste liquid.
Summary of the invention
The object of the present invention is to provide a kind of new tea aroma material collection method, tea aroma object is extracted and is enriched with
The condition milder of matter, more efficient, the tea aroma substance classes and content being enriched with are more.
Therefore, the first aspect of the present invention provides a kind of tea aroma material collection method, method includes the following steps:
Aqueous solutions of organic solvent extracts: carry out multistage extraction at different temperatures to tealeaves with aqueous solutions of organic solvent,
In every level-one extract be obtained by filtration extracting solution, the subsequent stages extraction after the first order is extracted is to use aqueous solutions of organic solvent
Tealeaves after extracting to upper level extracts, and the tealeaves after afterbody extracts is discarded, and collects extracting solutions at different levels and mixes
Obtain tealeaves organic solvent extracting solution；
Infiltration evaporation: multistage infiltration is carried out to the tealeaves organic solvent extracting solution at different temperatures with infiltrating and vaporizing membrane
Vaporization, wherein the temperature of first order infiltration evaporation is lower than the temperature of second level infiltration evaporation, collects infiltration evaporation permeate at different levels
And mix, obtain tea aroma substance organic solvent extracting solution.
Multistage is extracted and can be second level, three or more level is extracted.In a preferred embodiment of the invention, multistage to extract
For three-level extraction.
Multistage infiltration vaporization can be second level, three or more level infiltration evaporation.In a preferred embodiment of the invention,
Multistage infiltration is vaporizated into second level infiltration evaporation.
In certain preferred embodiments of the invention, aqueous solutions of organic solvent is extracted as three-level extraction, wherein first
Grade is mixed tealeaves with aqueous solutions of organic solvent in extracting with the mass ratio of 1:5-20, and constant temperature extracts 4-10h at 4-10 DEG C,
The tealeaves after first order extracting solution and the first order are extracted is obtained by filtration in extract；In the second level is extracted, the first order is extracted
Tealeaves afterwards is mixed with aqueous solutions of organic solvent with the mass ratio of 1:5-10, and constant temperature extracts 2-6h, extract warp at 20-30 DEG C
Tealeaves after second level extracting solution and second level extraction is obtained by filtration；Tealeaves in the third level is extracted, after the second level is extracted
It is mixed with aqueous solutions of organic solvent with the mass ratio of 1:5-10, constant temperature extracts 30min-1h at 40-60 DEG C, and extract is through filtering
Tealeaves after obtaining third level extracting solution and third level extraction, the tealeaves after wherein the third level is extracted are discarded, and collect the first order
Extracting solution, second level extracting solution and third level extracting solution are simultaneously mixed to get tealeaves organic solvent extracting solution.
Preferably, the volumetric concentration of aqueous solutions of organic solvent used is 5%-50%.Preferably, organic solvent is ethyl alcohol
Or propyl alcohol, more preferable ethyl alcohol.
In certain preferred embodiments of the invention, infiltration evaporation is second level infiltration evaporation, in the true of 0.05-0.1MPa
It is carried out under reciprocal of duty cycle with the circulation rate of 10-50mL/s, wherein first order infiltration evaporation carries out 3-8h at 20-30 DEG C, collects the
Level-one infiltration evaporation permeate；Second level infiltration evaporation carries out 2-10h at 50-70 DEG C, collects second level infiltration evaporation and penetrates
Liquid；First order infiltration evaporation permeate and second level infiltration evaporation permeate are mixed, obtaining tea aroma substance has
Solvent extracting solution.
Preferably, the material of infiltrating and vaporizing membrane used is to alcohols material, aldehyde material, letones, alkene terpene object
The volatile organic matters such as matter selectively penetrate stronger membrane material.In general, the material of this kind of film is dimethyl silicone polymer, poly- fourth
One or more of diene, polypropylene, polyetheramides or inorganic ceramic are combined.
It further include tealeaves before aqueous solutions of organic solvent extraction step in certain preferred embodiments of the invention
Pulverising step.Preferably, which is ground into tea powder of the granularity less than 20 mesh for tealeaves.
It further include to tea aroma substance after infiltration evaporation step in certain preferred embodiments of the invention
Organic solvent extracting solution carries out organic solvent and removes step, obtains tea aroma mixture of substances.Preferably, organic solvent removes
Step carries out under 10-20 DEG C of cryogenic temperature.
The second aspect of the present invention provides a kind of tea aroma substance organic solvent extracting solution and a kind of tea aroma substance
Mixture, the tea aroma material collection method of first aspect is prepared through the invention.The tea aroma substance is organic
Solvent extraction liquid can be used as the semi-finished product of the tea aroma mixture of substances, which can be used for tea-drinking
The field of food such as material, tea flavour cake, milk tea product.
It is prominent that any tealeaves can be used as the raw material of tea aroma material collection method of the invention, especially odor characteristic
Oolong tea (Iron Guanyin, single clump etc.), fragrance of a flower scenting tea (jasmine tea etc.), yellow tea.
The present invention have it is following the utility model has the advantages that
Tea aroma substance mainly includes the volatile organic matters such as alcohols, esters, aldehydes, ketone, alkene terpene organic matter, root
According to similar compatibility principle, tea aroma substance is more soluble in the organic solvents such as ethyl alcohol, therefore the present invention has with certain density
Solvent aqueous solution (such as ethanol water) extracts tea aroma substance, and extraction efficiency can be improved.
Meanwhile the present invention uses different temperatures grading extraction, extraction conditions are mild, can not only reduce heat sensitive components in height
Temperature is cracking, can also increase the recovery rate of high boiling component, can generally increase the kind for extracting obtained tea aroma substance
Class and total amount improve and extract yield, preferably reduction tealeaves original local flavor.
After grading extraction, collects the extracting solutions at different levels for extracting and obtaining, seeped twice at low temperatures and high temperatures with infiltrating and vaporizing membrane
Vaporization enrichment thoroughly, obtains tea aroma substance organic solvent extracting solution.The present invention uses second level infiltration evaporation under low temperature and high temperature,
Low temperature osmotic vaporization avoids the part easily easy thermal cracking substance decomposition of high temperature first, guarantees the total amount and type of fragrance, secondly high temperature
Infiltration evaporation can allow higher boiling aroma substance to be effectively enriched with, and enrich fragrance component.Tea aroma substance organic solvent mentions
Liquid is taken to be removed organic solvent to get tea aroma mixture of substances of the invention, fragrant aroma is arrived.
Tea aroma material collection method and process of the invention is simple and convenient to operate, and operating condition is mild, to equipment requirement
It is low, traditional tea aroma substance process of enriching equipment requirement height, cumbersome drawback are overcome, advantageously reduces and is produced into
This.The organic solvent of extraction such as ethyl alcohol can recycle circulating repetition utilization, reduce the wasting of resources.
Specific embodiment
Below by specific embodiment, invention is further described in detail.
The term as used herein " tea aroma substance " is also known as " volatile aroma components (VFC) ", and being can be by smelling in tealeaves
Feel the general name of the dulcet substance perceived, the mainly substances such as alcohols, aldehydes, ketone, alkene terpene.It can divide according to chemical component
Are as follows: non-terpene alcohols low boiling component (VFC I), including -3 alcohol of 1- amylene, cis- 2- amylene-1-ol, cis- blatter alcohol,
Trans- 2- hexenol and anti-, trans- 2,4- heptadienal etc.；Terpene alcohols high boiling component (VFC II), including linalool, fragrant camphor tree
Alcohol oxide, geraniol, α-ionone, β-ionone, nerolidol, suitable jasmone, cedrol, indoles etc..
The type and quantity of tea aroma substance are different because of the place of production of tea, kind, dose, tea making mode, wherein kind
There is conclusive influence with tea making mode.For example, Assam kind tealeaves and China seed, leaflet kind tea flavor difference are clearly,
The content of the former linalool compound is high, and the latter's geraniol content is high.Different tea making modes generate different fragrance components,
It such as simmers tea and steams young worker's skill due to taking, sulfur-bearing fragrance component (such as dimethyl sulfide) content therein is higher, and fragrant camphor tree in Longjing tea
The floral types such as alcohol, geraniol ingredient and furans, pyroles burnt odor type ingredient are higher.Oolong tea is then due to its special tea making side
Formula determines the floral types component contents such as nerolidol in its fragrance component, indoles, α-farnesene, linalool and its oxidation product
Higher characteristic.
Since tea aroma ingredient is mainly the volatile aromatics organic materials such as alcohols, aldehydes, ketone, alkene terpene, this
Similar compatibility principle of the invention according to substance extracts tea aroma ingredient using aqueous solutions of organic solvent, and efficiency is extracted higher than water
Method can more retain fragrance in extract, while reduce the molten boiling point of aroma substance, make higher boiling aroma substance in lower temperature
Under it is also volatilizable.Moreover, the present invention divides different temperature zones grading extraction tea aroma substance, when low temperature, can protect temperature-sensitive easily to crack
Aroma substance increases the recovery rate of higher boiling aroma substance when high temperature.Present invention preferably employs aqueous solutions of organic solvent to pass through three
Grade extraction method extracts tea aroma ingredient.It is further preferred that the volumetric concentration of aqueous solutions of organic solvent used is 5%-
50%；Preferably, organic solvent is ethyl alcohol, propyl alcohol, more preferable ethyl alcohol.
In order to preferably extract tea aroma substance, it is preferable that first crush tealeaves before extraction, to mention
Take efficiency.Preferably, tealeaves is ground into tea powder of the granularity less than 20 mesh.The crushing of tealeaves can carry out powder with mechanical crusher
Broken, this is well known in the art.
Pervaporation Technology is a kind of novel membrane separation technique, can be used for the enrichment of tea aroma substance.The present invention uses
Organic solvent grading extraction tea aroma substance, obtains extracts at different levels, obtains extracting solutions at different levels after filtering, by extractions at different levels
After liquid collects, multistage infiltration vaporization is carried out at different temperatures with infiltrating and vaporizing membrane.Infiltration evaporation is carried out at different temperatures, is seeped
Saturating vaporescence needs circulation time long, and temperature-sensitive aroma substance is further protected in grade low-temp enrichment, and it is high that second level high temperature is conducive to enrichment
Boiling point aroma component.Then infiltration evaporation permeate at different levels are collected and are mixed to get organic molten to tea aroma substance
Agent extracting solution.
Resulting tea aroma substance organic solvent extracting solution is to extract obtained a variety of tea aroma substances organic molten
Solution in agent can be used as semi-finished product and save or sell.Purer tea aroma substance in order to obtain, can remove organic
Solvent to get arrive tea aroma mixture of substances of the invention, fragrant aroma.Preferably, it is removed under cryogenic vacuum organic
Solvent, to reduce the influence of various temptures on tea aroma substance.
Therefore, preferred tea aroma material collection method of the invention the following steps are included:
It crushes: tealeaves is ground into tea powder of the granularity less than 20 mesh；
Ethanol water extracts: for three-level extraction, wherein in first order extraction, by tealeaves and aqueous solutions of organic solvent with
The mass ratio of 1:5-20 mixes, and constant temperature extracts 4-10h at 4-10 DEG C, and first order extracting solution and first is obtained by filtration in extract
Tealeaves after grade extraction；In the second level is extracted, the tealeaves and aqueous solutions of organic solvent after the first order is extracted are with 1:5-10's
Mass ratio mixing, constant temperature extracts 2-6h at 20-30 DEG C, after second level extracting solution and second level extraction is obtained by filtration in extract
Tealeaves；In the third level is extracted, tealeaves and aqueous solutions of organic solvent after the second level is extracted are mixed with the mass ratio of 1:5-10
It closes, constant temperature extracts 30min-1h at 40-60 DEG C, and the tea after third level extracting solution and the third level are extracted is obtained by filtration in extract
Leaf, the tealeaves after wherein the third level is extracted are discarded, and collect first order extracting solution, second level extracting solution and third level extracting solution simultaneously
It is mixed to get tealeaves ethanol extract；
Infiltration evaporation enrichment: for second level infiltration evaporation, with the circulation of 10-50mL/s under the vacuum degree of 0.05-0.1MPa
Speed carries out infiltration evaporation to tealeaves ethanol extract, and wherein first order infiltration evaporation carries out 3-8h at 20-30 DEG C, collects the
Level-one infiltration evaporation permeate；Second level infiltration evaporation carries out 2-10h at 50-70 DEG C, collects second level infiltration evaporation and penetrates
Liquid；First order infiltration evaporation permeate and second level infiltration evaporation permeate are mixed, tea aroma substance second is obtained
Alcohol extract；
Solvent removal: 10-20 DEG C at a temperature of to tea aroma substance ethanol extract carry out ethyl alcohol removal, obtain tea
Leaf aroma substance mixture.
Resulting tea aroma mixture of substances can be used for the field of food such as tea beverage, tea flavour cake, milk tea product.
Below by way of specific embodiment, the invention will be further described.These embodiments are only exemplary, and
It is not intended to limit the invention in any way.
Embodiment 1
The tea powder at 10 mesh is mechanically pulverized in single clump of tealeaves snowflake of phoenix, the ethanol water for being 10% with volumetric concentration is pressed
It is mixed according to mass ratio 1:20, constant temperature extracts 5h at 4 DEG C, filters out tealeaf residue, obtains extracting solution 1.Continue in tealeaf residue
According to mass ratio 1:5 be added volumetric concentration be 10% ethanol water, at 20 DEG C constant temperature extract 2h, filter out tealeaves
Slag obtains extracting solution 2.The ethanol water that volumetric concentration is 10%, heating is added according to mass ratio 1:5 in tea grounds leaf again
30min is extracted to 40 DEG C of constant temperature, tealeaf residue is filtered out, obtains extracting solution 3.Extracting solution 1,2 and 3 is cooled to room temperature and is mixed,
Then insert experiment room is with circulating vacuum infiltration evaporation system (Hangzhou Rui Na film Engineering Co., Ltd manufactures), and first low temperature is at 20 DEG C
Lower circulation collection aroma substance collects 6h pregnant solution 1；It then heats to 50 DEG C and is enriched with higher boiling aroma substance again, it is rich to collect 6h
Liquid collecting 2.Infiltrating and vaporizing membrane uses dimethyl silicone polymer material.The osmotic pressure 0.05MPa of infiltration evaporation, charging rate 50L/
min.Pregnant solution 1 and 2 is mixed by the proper ratio that obtains after tealeaves specialized review person sensory evaluation in company, then 15 DEG C it is true
Sky volatilization removes most of ethyl alcohol to get tea aroma mixture of substances is arrived.Aroma substance type and total amount are measured using GC-MS
(using ethyl caprate as criterion calculation), and be compared with 100 DEG C of water extraction methods.As a result the type and total amount of fragrance occur different
The increase of degree, specific testing result are shown in Table 1.
The ratio of phoenix single clump of tea aroma substance classes and total amount that 1. the method for the present invention of table and 100 DEG C of water extraction methods obtain
Compared with
| Project | 100 DEG C of water extract | The method of the present invention is extracted |
| Alcohols (number) | 6 | 9 |
| Aldehydes (number) | 6 | 7 |
| Ketone (number) | 4 | 7 |
| Esters (number) | 3 | 5 |
| Hydrocarbon (number) | 5 | 7 |
| Other (numbers) | 7 | 7 |
| Total number | 31 | 42 |
| Total amount μ g/L | 49.8 | 61.4 |
Embodiment 2
By giving off a strong fragrance Tie Guanyin tea be mechanically pulverized at 10 mesh tea powder, with volumetric concentration be 20% ethanol water according to
Mass ratio 1:20 is mixed, and constant temperature extracts 6h at 10 DEG C, is filtered out tealeaf residue, is obtained extracting solution 1.Continue in tealeaf residue
The ethanol water that volumetric concentration is 20% is added according to mass ratio 1:10, constant temperature extracts 6h at 25 DEG C, tealeaf residue is filtered out,
Obtain extracting solution 2.The ethanol water that volumetric concentration is 20% is added according to mass ratio 1:5 in tea grounds leaf again, is warming up to
40 DEG C of constant temperature extract 1h, filter out tealeaf residue, obtain extracting solution 3.Extracting solution 1,2 and 3 is cooled to room temperature and is mixed, is then connect
Enter laboratory cycle vacuum infiltration carburetion system (manufacture of Hangzhou Rui Na film Engineering Co., Ltd), first low temperature recycles at 30 DEG C
It is enriched with aroma substance, collects 4h pregnant solution 1；It then heats to 60 DEG C and is enriched with higher boiling aroma substance again, collect 6h pregnant solution 2.
Infiltrating and vaporizing membrane uses dimethyl silicone polymer material.The osmotic pressure 0.08MPa of infiltration evaporation, charging rate 70L/min.It will
Pregnant solution 1 and 2 is mixed by the proper ratio obtained after tealeaves specialized review person sensory evaluation in company, then 15 DEG C of vacuum volatilizations
Most of ethyl alcohol is removed to get tea aroma mixture of substances is arrived.Use GC-MS measurement aroma substance type and total amount (with the last of the ten Heavenly stems
Acetoacetic ester is criterion calculation), and be compared with 100 DEG C of water extraction methods.As a result the type and total amount of fragrance occur different degrees of
Increase, specific testing result is shown in Table 2.
Giving off a strong fragrance Tie Guanyin tea aroma substance type that 2. the method for the present invention of table and 100 DEG C of water extraction methods obtain and total amount
Compare
| Project | 100 DEG C of water extract | The method of the present invention is extracted |
| Alcohols (number) | 5 | 6 |
| Aldehydes | 6 | 7 |
| Ketone | 6 | 6 |
| Esters | 2 | 3 |
| Hydrocarbon | 6 | 7 |
| Other | 4 | 8 |
| Total number | 29 | 37 |
| Total amount mg/L | 32.6 | 45.1 |
Embodiment 3
Yellow big tea machine tool is ground into the tea powder of 20 mesh, the ethanol water for being 30% with volumetric concentration is according to mass ratio 1:
15 are mixed, and constant temperature extracts 4h at 10 DEG C, are filtered out tealeaf residue, are obtained extracting solution 1.Continue in tealeaf residue according to quality
The ethanol water that volumetric concentration is 30% is added than 1:10, constant temperature extracts 6h at 30 DEG C, filters out tealeaf residue, is extracted
Liquid 2.The ethanol water that volumetric concentration is 30% is added according to mass ratio 1:5 in tea grounds leaf again, is warming up to 60 DEG C of constant temperature
1h is extracted, tealeaf residue is filtered out, obtains extracting solution 3.Extracting solution 1,2 and 3 is cooled to room temperature and is mixed, then insert experiment room
With circulating vacuum infiltration evaporation system (Hangzhou Rui Na film Engineering Co., Ltd manufactures), first low temperature circulation collection fragrance at 30 DEG C
Substance collects 4h enriched liquid 1；It then heats to 60 DEG C and is enriched with higher boiling aroma substance again, collect 8h pregnant solution 2.Permeate vapour
Change film and uses polyetheramides material.The osmotic pressure 0.06MPa of infiltration evaporation, charging rate 80L/min.By enriched liquid 1,2
By the proper ratio mixing obtained after tealeaves specialized review person sensory evaluation in company, then 15 DEG C of vacuum volatilization removals are most of
Ethyl alcohol to get arrive tea aroma mixture of substances.Use GC-MS measurement aroma substance type and total amount (with ethyl caprate for mark
Standard calculates), and be compared with 100 DEG C of water extraction methods.As a result there is different degrees of increase in the type and total amount of fragrance, specifically
Testing result is shown in Table 3.
3. the method for the present invention of table is compared with the big tea perfume gas substance classes of the Huang that 100 DEG C of water extraction methods obtain and total amount
| Project | 100 DEG C of water extract | The method of the present invention is extracted |
| Alcohols (number) | 5 | 7 |
| Aldehydes | 12 | 15 |
| Ketone | 4 | 5 |
| Esters | 5 | 7 |
| Hydrocarbon | 8 | 10 |
| Other | 4 | 5 |
| Total number | 38 | 49 |
| Total amount mg/L | 45.6 | 52.1 |
Embodiment 4
Assam tea is mixed with the ethanol water that volumetric concentration is 40% according to mass ratio 1:8, at 6 DEG C
Constant temperature extracts 4h, filters out tealeaf residue, obtains extracting solution 1.Continue that volumetric concentration is added according to mass ratio 1:10 in tealeaf residue
For 40% ethanol water, constant temperature extracts 6h at 25 DEG C, filters out tealeaf residue, obtains extracting solution 2.Again in tea grounds leaf
The ethanol water that volumetric concentration is 40% is added according to mass ratio 1:15, is warming up to 50 DEG C of constant temperature and extracts 1h, filter out tealeaves
Slag obtains extracting solution 3.Extracting solution 1,2 and 3 is cooled to room temperature and is mixed, then vapour is permeated with circulating vacuum in insert experiment room
Change system (Hangzhou Rui Na film Engineering Co., Ltd), first low temperature circulation collection aroma substance at 30 DEG C collect 4h pregnant solution 1；
It then heats to 60 DEG C and is enriched with higher boiling aroma substance again, collect 8h pregnant solution 2.Infiltrating and vaporizing membrane uses polybutadiene material.
The osmotic pressure 0.08MPa of infiltration evaporation, charging rate 80L/min.By pregnant solution 1 and 2 by tealeaves specialized review person in company
The proper ratio mixing obtained after sensory evaluation, then 15 DEG C of vacuum volatilizations remove most of ethyl alcohol to get tea aroma object is arrived
Matter mixture.Use GC-MS measurement aromatic substance type and fragrance total amount (using ethyl caprate as criterion calculation), and with 100 DEG C
Water extraction method is compared.As a result there is different degrees of increase in the type and total amount of fragrance, and specific testing result is shown in Table 4.
4. the method for the present invention of table is compared with Assam tea aroma substance type and total amount that 100 DEG C of water extraction methods obtain
Use above specific example is expounded the present invention, is merely used to help understand the present invention, not to
The limitation present invention.The design of those skilled in the art according to the present invention can also be made and several simply push away
It drills, deform or replaces.These are deduced, deformation or alternative are also fallen into scope of the presently claimed invention.
Claims (10)
1. a kind of tea aroma material collection method, which is characterized in that the described method comprises the following steps:
Aqueous solutions of organic solvent extracts: multistage extraction is carried out at different temperatures to tealeaves with aqueous solutions of organic solvent, wherein often
Extracting solution is obtained by filtration in level-one extract, and the subsequent stages extraction after the first order is extracted is with aqueous solutions of organic solvent to upper
Tealeaves after level-one is extracted extracts, and the tealeaves after afterbody extracts is discarded, and collects extracting solutions at different levels and is mixed to get
Tealeaves organic solvent extracting solution；
Infiltration evaporation: multistage infiltration vapour is carried out to the tealeaves organic solvent extracting solution at different temperatures with infiltrating and vaporizing membrane
Change, wherein the temperature of first order infiltration evaporation is lower than the temperature of second level infiltration evaporation, collects infiltration evaporation permeate at different levels simultaneously
It mixes, obtains tea aroma substance organic solvent extracting solution.
2. tea aroma material collection method according to claim 1, which is characterized in that the aqueous solutions of organic solvent mentions
It is taken as three-level extraction, wherein mixing tealeaves with the mass ratio of 1:5-20 with the aqueous solutions of organic solvent in first order extraction
It closes, constant temperature extracts 4-10h at 4-10 DEG C, and the tealeaves after first order extracting solution and the first order are extracted is obtained by filtration in extract；
In the second level is extracted, the tealeaves after the first order is extracted is mixed with the aqueous solutions of organic solvent with the mass ratio of 1:5-10,
Constant temperature extracts 2-6h at 20-30 DEG C, and the tealeaves after second level extracting solution and the second level are extracted is obtained by filtration in extract；?
During three-level is extracted, the tealeaves after the second level is extracted is mixed with the aqueous solutions of organic solvent with the mass ratio of 1:5-10, in 40-
Constant temperature extracts 30min-1h at 60 DEG C, and the tealeaves after third level extracting solution and the third level are extracted is obtained by filtration in extract, wherein
Tealeaves after the third level is extracted is discarded, and is collected first order extracting solution, second level extracting solution and third level extracting solution and is mixed
To tealeaves organic solvent extracting solution.
3. tea aroma material collection method according to claim 2, which is characterized in that the aqueous solutions of organic solvent
Volumetric concentration is 5%-50%.
4. tea aroma material collection method according to claim 3, which is characterized in that the organic solvent is ethyl alcohol
Or propyl alcohol, preferred alcohol.
5. tea aroma material collection method according to claim 1, which is characterized in that the infiltration evaporation is second level infiltration
Vaporization thoroughly is carried out under the vacuum degree of 0.05-0.1MPa with the circulation rate of 10-50mL/s, and wherein first order infiltration evaporation exists
3-8h is carried out at 20-30 DEG C, collects first order infiltration evaporation permeate；Second level infiltration evaporation carries out 2- at 50-70 DEG C
10h collects second level infiltration evaporation permeate；First order infiltration evaporation permeate and second level infiltration evaporation permeate are mixed
Together, the tea aroma substance organic solvent extracting solution is obtained.
6. tea aroma material collection method according to claim 5, which is characterized in that the material of the infiltrating and vaporizing membrane
Selectively to penetrate stronger membrane material to volatile organic matters such as alcohols material, aldehyde material, letones, alkene terpene substances
Material；Preferably, the material of the infiltrating and vaporizing membrane is dimethyl silicone polymer, polybutadiene, polypropylene, polyetheramides or inorganic
One or more of ceramics are combined.
7. tea aroma material collection method according to claim 1 to 6, which is characterized in that the method exists
It further include tealeaves pulverising step before the aqueous solutions of organic solvent extraction step；Preferably, the tealeaves pulverising step is by institute
It states tealeaves and is ground into tea powder of the granularity less than 20 mesh.
8. tea aroma material collection method described in any one of -7 according to claim 1, which is characterized in that the method exists
It further include that organic solvent removal step is carried out to the tea aroma substance organic solvent extracting solution after the infiltration evaporation step
Suddenly, tea aroma mixture of substances is obtained；Preferably, organic solvent removal step 10-20 DEG C at a temperature of carry out.
9. a kind of tea aroma substance organic solvent extracting solution, which is characterized in that the tea aroma substance organic solvent extracts
Liquid is prepared by tea aroma material collection method according to claim 7.
10. a kind of tea aroma mixture of substances, which is characterized in that the tea aroma mixture of substances according to right by wanting
Tea aroma material collection method described in asking 8 is prepared.
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