CN109370766A - A kind of technique for extracting curcumin and curcuma oil from turmeric - Google Patents
A kind of technique for extracting curcumin and curcuma oil from turmeric Download PDFInfo
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- CN109370766A CN109370766A CN201811272571.5A CN201811272571A CN109370766A CN 109370766 A CN109370766 A CN 109370766A CN 201811272571 A CN201811272571 A CN 201811272571A CN 109370766 A CN109370766 A CN 109370766A
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B1/00—Production of fats or fatty oils from raw materials
- C11B1/02—Pretreatment
- C11B1/04—Pretreatment of vegetable raw material
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/78—Separation; Purification; Stabilisation; Use of additives
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/78—Separation; Purification; Stabilisation; Use of additives
- C07C45/79—Separation; Purification; Stabilisation; Use of additives by solid-liquid treatment; by chemisorption
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/78—Separation; Purification; Stabilisation; Use of additives
- C07C45/80—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B1/00—Production of fats or fatty oils from raw materials
- C11B1/10—Production of fats or fatty oils from raw materials by extracting
- C11B1/102—Production of fats or fatty oils from raw materials by extracting in counter-current; utilisation of an equipment wherein the material is conveyed by a screw
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Medicines Containing Plant Substances (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
A kind of technique for extracting curcumin and curcuma oil from turmeric, belong to technical field of biology, extraction process is by the direct impurity elimination of turmeric, goes stone, crushing, granulation, respectively with normal butane and dimethyl ether using fluid state as extractant, curcumin or curcuma oil are extracted from turmeric, extracting solution after filtering gasify to obtain curcumin or curcuma oil in evaporator by decompression, and turmeric dreg is recycled after steaming the normal butane or dimethyl ether compressed cooling liquid of abjection in extractor.The normal butane or dimethyl ether that the technique uses with subcritical fluids state, in turmeric curcumin or curcuma oil extract, it is not only higher than traditional extraction process recovery rate, it is quality, and in extract total-tanshinone effective content 50% or more.
Description
Technical field
The present invention relates to the techniques of a kind of extraction curcumin and curcuma oil, in particular to a kind of that curcumin is extracted from turmeric
And the technique of curcuma oil, belong to technical field of plant extraction.
Background technique
Turmeric is a kind of ginger section curcuma, have reducing blood lipid, antitumor, anti-inflammatory, cholagogue, resisting pathogenic microbes,
The effects of terminal pregnancy, also there is good preventive effect to disease of cardiovascular system.
For turmeric usually as Chinese medicine, curcumin and curcuma oil are the natural pigment extracted from turmeric and natural perfume
Material, is good food additives.
Currently, both at home and abroad from the open report for extracting curcumin and curcuma oil in turmeric, prior art substantially there are two types of,
First method is that first curcuma oil in turmeric is evaporated with steam distillation, then the slag first after extraction curcuma oil
Alcohol extracts curcumin, and extracting solution obtains curcumin by filtering, concentration, drying and other steps.Second method is turmeric
It is extracted that is, after impurity elimination, crushing with ethyl alcohol by simple process, extracting solution is filtered, concentration removal ethyl alcohol, the medicinal extract after concentration
Curcuma oil is obtained after petroleum ether concentration up to curcumin finished product through vacuum drying crushing packing after petroleum ether is handled.
Both the above technical method, there are apparent technological deficiencies
1, first method, steam distillation temperature is higher, destroys serious and high boiling curcuma oil to low-boiling curcuma oil
Evaporation does not come out, and influences the yield (4 ~ 6%) of curcuma oil.Once more seriously curcuma oil mentions not exclusively, mentioning for curcumin is influenced
Difficulty is taken and be separated by solid-liquid separation, high production cost is caused, the production cycle is long；
2, second method, it is simple compared with first method, but curcuma oil loss is serious, moreover the curcumin put forward is crude product,
Use scope substantially reduces；
3, two methods, the curcumin product quality extracted all compared with lemon yellow currently used in the market, Gardenia Yellow,
All there is apparent gap；
4, the curcuma oil in turmeric does not extract sufficiently, is not subject to right combination utilization.
How above-mentioned several defects be can just overcome, curcumin and ginger produced using simple technology low-coat scale metaplasia
Butter is the project faced at present.
Summary of the invention
For in current curcumin and curcuma oil extraction process, the production cycle is long, output capacity is low, at high cost, produces with market
There are problems that certain gap, the present invention provide a kind of technique that curcumin and curcuma oil are extracted from turmeric, mesh between product
Be simplified production technology, shorten extraction time, improve product output rate, reduce production cost, accomplish scale production.
The technical scheme is that a kind of technique for extracting curcuma oil from turmeric, what the extraction process utilized is set
Standby includes extractor, evaporator, solvent tank one and compressor, extracts curcuma oil, extraction process using normal butane when extraction are as follows:
1) it turmeric after impurity elimination, going stone, crushing, granulation, is added in extractor, will be stored just in solvent tank one in proportion
Butane is sent to extractor, using normal butane as extractant, extracts the curcuma oil in turmeric with normal butane in the way of counter-current extraction,
It is 0.4 ~ 0.8MPa, extraction temperature are as follows: 40 ~ 50 DEG C, obtain curcuma oil miscella with the pressure that normal butane extracts curcuma oil；
2) the curcuma oil miscella of extraction is sent from extractor to evaporator, evaporator is interior by the normal butane in curcuma oil miscella
Liquid evaporation makes the n-butane solvent in curcuma oil miscella gasify, and using compressor extraction compression, heating, boosting, is back to
Extractor is recycled or is back in the heat exchange tank in evaporator as hot solvent and exchanges heat, and liquefy n-butane solvent after heat exchange
It is back in solvent tank one；
3) by after the normal butane heating and gasifying in the curcuma oil miscella of extraction in evaporator, there are ginger in curcuma oil miscella
Butter, as curcuma oil extract liquor；
4) it is repeated a number of times extraction, becomes curcuma oil after the curcuma oil extract liquor repeatedly extracted is merged concentration.
It is a kind of from turmeric extract curcumin technique, the equipment that the extraction process utilizes include extractor, evaporator,
Solvent tank two and compressor extract curcumin, extraction process using dimethyl ether when extraction are as follows:
1) after wet slag after extraction curcuma oil being steamed residual solvent, in same extractor, using dimethyl ether as extractant, in proportion
The dimethyl ether stored in solvent tank two is sent to extractor, when extracting curcumin, is extracted from turmeric in the way of counter-current extraction
Curcumin, the pressure for using dimethyl ether to extract curcumin as extractant are 0.5 ~ 1.2MPa, extraction temperature are as follows: 40 ~ 50 DEG C, obtain
Curcumin miscella；
2) the curcumin miscella of extraction is sent from extractor to evaporator, evaporator is interior by the dimethyl ether in curcumin miscella
Liquid evaporation makes the diformazan ether solvents in curcumin miscella gasify, and using compressor extraction compression, heating, boosting, is back to
Extractor is recycled or is back in the heat exchange tank in evaporator as hot solvent and exchanges heat, liquefied dimethyl ether liquid after heat exchange
Body is back in solvent tank two；
3) by after the dimethyl ether heating and gasifying in the curcumin miscella of extraction in evaporator, there are ginger in curcumin miscella
Flavine, as curcumin extract liquor；
4) it is repeated a number of times extraction, the curcumin liquid repeatedly extracted is mixed simultaneously, obtains curcumin medicinal extract after curcumin concentration.
Further, after extracting curcuma oil or curcumin using normal butane two or methyl ether, obtained extract be curcuma oil or
In curcumin extract, normal butane or diformazan ether content are less than 500ppm,
Further, when extracting curcuma oil or curcumin using normal butane or dimethyl ether, extraction turmeric and weight of solvent ratio are as follows: ginger
It is yellow: normal butane or dimethyl ether=1:2 ~ 2.5.
The good effect that the present invention has is:, can be to the maximum extent by using normal butane or dimethyl ether as solvent
Will through impurity elimination, go stone, crushing, granulation after in turmeric curcuma oil or curcumin extract；By being blended with normal butane or two
The curcuma oil miscella or curcumin miscella of methyl ether are sent using mixing oil pipeline to evaporator, are conducive to utilize evaporator by ginger
Normal butane or the dimethyl ether gasification contained in butter miscella or curcumin miscella, and extracted out using compressor, improve mixing
The content of curcuma oil or curcumin in oil；By by extractor normal butane or dimethyl ether vapor volume using compressor extract pressure
Contracting, heating, boosting, return to evaporator, carry out heat exchange using heat exchanger tube in evaporator, and normal butane or dimethyl ether can be made to condense
It is back in different solvents tank, is conducive to recycling in extractor for normal butane or dimethyl ether, meanwhile, by normal butane or two
Methyl ether vapor volume extracts compression, heating, boosting using compressor, back to can directly utilize thermal energy in extractor, accelerates extraction
Efficiency；By utilizing this technique, can successively be divided in same extractor in a set of equipment using normal butane or dimethyl ether
Not carry out curcuma oil or curcumin proposition, this extraction process is easy to operate, strong operability, unique internal heat exchange skill
Production cost is greatly lowered in art design, is easy to large-scale production, and recovery rate is high, quality, especially curcumin
Quality, much higher than common synthetic dyestuff lemon yellow and natural pigment Gardenia Yellow in the market.
Detailed description of the invention
Fig. 1 utilizes the process flow schematic diagram of normal butane and dimethyl ether solvent extraction curcuma oil and curcumin.
Label declaration: 10- extractor, 11- feed inlet, 12- extractor extractor gas outlet, 13- distiller grains outlet, 14- mixing
Oil export, the import of 15- extractor solvent vapour, 17- are molten into solvent mouth, 20a-solvent tank one, 20b-solvent tank two, 21a-
Agent tank solvent inlet one, 21b- solvent tank solvent inlet two, 22a- solvent outlet one, 22b- solvent outlet two, 23a- emptying
Mouth one, 23b- evacuation port two, 30- evaporator, 31- evaporator gas outlet, the import of 32- heat exchanger tube, 33- heat transfer tube outlet, 35- are mixed
Close oil inlet, 36- heat exchanger tube, 37- extract outlet, 38- mixing oil pipeline, 40- compressor compresses machine, 41 air entries, 42-
Exhaust outlet.
Specific embodiment
Below in conjunction with attached drawing, technical solution of the present invention is described in detail.Below with regard to the technical program further into
Row is described in detail, and in the following description, to simplify the explanation, will utilize normal butane or dimethyl ether solvent extraction curcuma oil or ginger
The technique of flavine, is illustrated together, and in the actual operation process, extracting curcuma oil and extracting curcumin is individually to carry out
, in a set of equipment, the extraction of curcuma oil and curcumin is sequentially carried out respectively, wherein turmeric is crushed make first
Extract curcuma oil using normal butane after grain, then drop is extracted after wet slag steams residual solvent after curcuma oil, same extractor after
The continuous dimethyl ether that is added extracts curcumin.
The technical scheme is that a kind of technique for extracting curcuma oil and curcumin from turmeric, Fig. 1 is to utilize positive fourth
The process flow schematic diagram of alkane and dimethyl ether solvent extraction curcuma oil and curcumin.
The equipment that the extraction process utilizes include extractor 10, evaporator 30, one 20a of solvent tank, two 20b of solvent tank and
Compressor 40 extracts curcuma oil using normal butane when extraction, and dimethyl ether is utilized to extract curcumin, extraction process are as follows:
1) it turmeric after impurity elimination, going stone, crushing, granulation, is added in extractor 10, the positive fourth that will be stored in one 20a of solvent tank
Alkane is sent in proportion to extractor 10, using normal butane as extractant, to the turmeric oil extract in turmeric in the way of counter-current extraction,
It is 0.4 ~ 0.8MPa, extraction temperature are as follows: 40 ~ 50 DEG C, obtain curcuma oil miscella with the pressure that normal butane extracts curcuma oil；Then
After wet slag after extraction curcuma oil is steamed residual solvent, in same extractor, using dimethyl ether as extractant, in proportion by diformazan
Ether is sent in extractor 10, extract curcumin when, curcumin is extracted from turmeric in the way of counter-current extraction, use dimethyl ether as
The pressure that extractant extracts curcumin is 0.5 ~ 1.2MPa, extraction temperature are as follows: 40 ~ 50 DEG C, obtain curcumin miscella；
2) the curcuma oil miscella of extraction or curcumin miscella are sent from extractor 10 to evaporator 30, evaporator using pressure difference
To the normal butane or dimethyl ether liquid evaporation in curcuma oil miscella or curcumin miscella in 30, make the normal butane in miscella
Or it is sharp again as hot solvent to be back to extractor 10 using the extraction of compressor 40 compression, heating, boosting for the gasification of diformazan ether solvents
With or the heat exchanger tube 36 that is back in evaporator 30 in exchange heat, liquefy after heat exchange and be back to the solvent equipped with normal butane respectively
In one 20a of tank or solvent tank 20b equipped with dimethyl ether；
3) by extractor 10 normal butane gas or gas of dimethyl ether using compressor 40 extract compression, heating, boosting, return
To evaporator 30, heat exchange is carried out using heat exchanger tube 36 in evaporator 3, and the solvent vapour in heat exchanger tube 36 is condensed liquefaction, divides
It Liu Ru not be in 2 20 b of one 20a of solvent tank and solvent tank；
4) by after the normal butane or dimethyl ether heating and gasifying in the miscella of extraction in evaporator 30, there are turmerics in miscella
Oil or curcumin, as curcuma oil or curcumin extract liquor；
5) be repeated a number of times extraction, the curcuma oil repeatedly extracted or curcumin extract liquor are merged become after concentration curcuma oil or
Curcumin.
After extracting curcuma oil or curcumin using normal butane two or methyl ether, obtained extract is that curcuma oil or curcumin extract
It takes in object, normal butane or diformazan ether content are less than 500ppm.
When extracting curcuma oil or curcumin using normal butane or dimethyl ether, extraction turmeric and weight of solvent ratio are as follows: turmeric: just
Butane or dimethyl ether=1:2 ~ 2.5.
In the present embodiment, extracting the pressure of curcuma oil with normal butane is 0.6MPa, extraction temperature are as follows: 50 DEG C, obtains ginger
Yellow miscella.
In the present embodiment, the pressure for using dimethyl ether to extract curcumin as extractant is 1.0MPa, extraction temperature are as follows:
50 DEG C, obtain curcumin miscella.
In the present invention, the connection structure between whole equipment is as follows:
The present invention is to extract the technique of curcuma oil and curcumin to turmeric under fluid state using normal butane and diformazan ether solvents,
Feed inlet 11 and extractor gas outlet 12 are arranged at 10 top of extractor, and distiller grains outlet 13 and mixing oil export 14 are arranged at bottom, and extraction is arranged at lower part
Take tank solvent vapour import 15.Evaporator 30 is provided with heat exchanger tube 36, and evaporator gas outlet 31 is arranged at top, and extract row is arranged at bottom
Mixing oil inlet 35 is arranged at outlet 37,30 top of evaporator, and there is heat exchanger tube import 32 at middle part, and heat transfer tube outlet 33 is arranged at lower part.Solvent
The tank body top of two 20b of one 20a of tank or solvent tank is respectively arranged with one 21a of solvent tank solvent inlet or solvent tank solvent inlet two
Two 22b of one 22a of solvent outlet or solvent outlet is arranged at 21b, lower part, and two 23b of one 23a of evacuation port or evacuation port is arranged at bottom.Compressor
40 have air entry 41 and exhaust outlet 42.
Extractor gas outlet 12 and evaporator gas outlet 31 are connected with the air entry 41 of compressor 40, extractor 10 into
Solvent mouth 17 is connected with one 22a of solvent outlet of two 2ob of one 20a of solvent tank or solvent tank or two 22b of solvent outlet respectively.Extraction
Tank solvent vapour import 15 and heat exchanger tube import 32 is taken to be connected with the exhaust outlet 42 of compressor 40, with 33 phase of heat transfer tube outlet
Even, one 21a of solvent tank solvent inlet or solvent tank solvent of one 20a of solvent tank or the setting of two top 20b of solvent tank are coupled with
Two 21b of import.
This technique is realized according to following approach.
When this process system is run, material is packed into extractor 10 from the feed inlet 11 of extractor 10, and charge is tank volume
60% ~ 80%.Then, feed inlet 11 is closed, carries out counter-current extraction with pot group type extracting technological method.The extraction time of material is
30 ~ 150 min, extraction temperature are to take the photograph 40 ~ 50 DEG C, solvent usage are as follows:
V (material): V(solvent)=1: 2 ~ 1: 2.5.
Miscella is connected entrance by the mixing oil export 14 of 10 lower part of extractor with the mixing oil inlet 35 of evaporator 30
In evaporator 30.When miscella evaporation, evaporator gas outlet 31 need to be connected to the air entry 41 of compressor 40, in evaporator 30
Normal butane or the gasification of diformazan ether solvents in miscella, are sucked out by compressor 40, miscella concentration are continuously improved, until remaining
Extract in normal butane or diformazan ether content be less than 500ppm, extract, it may be assumed that curcuma oil or curcumin, from 30 bottom of evaporator
Row's extract outlet 37 in portion is discharged.The solvent vapour sucked by compressor 40 leads to after compressor 40 compresses increasing temperature and pressure
Heat exchanger tube import 32 enters in heat exchanger tube 36 in pervaporation tank 30, carries out heat exchange, heat exchanger tube with the miscella in evaporator 30
Solvent vapour in 36 is condensed liquefaction, flows out from heat transfer tube outlet 33, through one 21a of solvent tank solvent inlet or solvent tank solvent
Two 21b of import separately flows into two 2ob of one 20a of solvent tank or solvent tank.
After miscella in extractor 10 in material is extracted, a certain amount of solvent is still contained in material.For from material
This partial solvent is removed, extractor gas outlet 12 is connected to the air entry 41 of compressor 40, the solvent in extractor in material
Evaporation gasification, is sucked out, until normal butane in material or diformazan ether content reach 700 ppm by compressor 40.By compressor
40 sucking solvent vapours, it may be assumed that normal butane or diformazan ether fume, through compressor 40 compress increasing temperature and pressure after, by heat exchanger tube into
Mouth 32 enters solvent vapour in evaporator heat exchanger tube 36, flows out with the materials abstraction tank mixing oil export 14 in evaporator mixed
It closing oil and carries out heat exchange, the normal butane or diformazan ether fume in heat exchanger tube 36 are condensed liquefaction, from the outflow of the outlet of heat exchanger tube 33,
One 20a of solvent tank or solvent tank two of difference are separately flowed into through one 21a of solvent tank solvent inlet or two 21b of solvent tank solvent inlet
20b.After normal butane or dimethyl ether in extractor in material are evaporated, the bottom distiller grains outlet 13 of extractor is opened, material is by elder generation
After be discharged, complete an extraction cycle process.
It is above-mentioned to be required to successively repeatedly be extracted respectively by butter or curcumin, by the curcuma oil repeatedly extracted or turmeric
Element merges respectively, obtains curcuma oil or curcumin medicinal extract after curcuma oil or curcumin concentration,
After extracting curcuma oil or curcumin using normal butane or methyl ether, obtained extract is curcuma oil or curcumin extract
In, normal butane or diformazan ether content are less than 500ppm.
When extracting curcuma oil or curcumin using normal butane or dimethyl ether, extraction turmeric and weight of solvent ratio are as follows: turmeric: just
Butane or dimethyl ether=1:2 ~ 2.5.In the present embodiment, turmeric has been used: normal butane or dimethyl ether=1:2 ratio.
Solvent evaporation in extractor in material can carry out simultaneously with the miscella evaporation in evaporator.What is evaporated is molten
Agent steam can enter compressor 40 simultaneously, through the compressed solvent vapour of compressor 40, can enter extractor and steaming simultaneously
In the heat exchanger tube 36 for sending out tank 10.
In addition, the temperature and pressure in extractor 10 is realized by controlling the flow of solvent vapo(u)r.
The present invention by using normal butane or dimethyl ether as solvent, can to the maximum extent by through impurity elimination, remove stone, powder
Curcuma oil or curcumin extract respectively in turmeric after broken, granulation；By the miscella for being blended with normal butane or dimethyl ether
It is sent using mixing oil pipeline 38 to evaporator, is conducive to utilize evaporator by the normal butane contained in miscella or dimethyl ether gas
Change, and extracted out using compressor 40, improves the content of curcuma oil or curcumin in miscella；By by the normal butane in extractor
Or dimethyl ether vapor volume extracts compression, heating, boosting using compressor 40, returns to evaporator, utilizes heat exchanger tube in evaporator
36 carry out heat exchange, and normal butane or dimethyl ether can be made to condense, be back in two 20b of one 20a of solvent tank or solvent tank, be conducive to just
Butane or dimethyl ether recycle in extractor, meanwhile, normal butane or gas of dimethyl ether are extracted into pressure using compressor 40
Contracting, heating, boosting accelerate extraction efficiency back to can directly utilize thermal energy in extractor；By utilizing this technique, utilize
Different solvent tanks, extraction and evaporation can be realized in a set of equipment, carry out curcuma oil respectively using normal butane or dimethyl ether
Or the proposition of curcumin, extraction operation is simple, strong operability, and unique internal heat exchange Technology design makes production cost substantially
Degree reduces, and is easy to large-scale production, and recovery rate is high, quality, especially the quality of curcumin, much higher than commonly using in the market
Synthetic dyestuff lemon yellow and natural pigment Gardenia Yellow.
The process route and embodiment being embodied above, the invention is not limited in any way, all with similar
Process route or the mode technical solution obtained of equivalent solvent replacement, are within the scope of the present invention.
Claims (4)
1. a kind of technique for extracting curcuma oil from turmeric, it is characterised in that: the equipment that the extraction process utilizes includes extraction
Tank, evaporator, solvent tank one and compressor extract curcuma oil, extraction process using normal butane when extraction are as follows:
1) it turmeric after impurity elimination, going stone, crushing, granulation, is added in extractor, will be stored just in solvent tank one in proportion
Butane is sent to extractor, using normal butane as extractant, extracts the curcuma oil in turmeric with normal butane in the way of counter-current extraction,
It is 0.4 ~ 0.8MPa, extraction temperature are as follows: 40 ~ 50 DEG C, obtain curcuma oil miscella with the pressure that normal butane extracts curcuma oil；
2) the curcuma oil miscella of extraction is sent from extractor to evaporator, evaporator is interior by the normal butane in curcuma oil miscella
Liquid evaporation makes the n-butane solvent in curcuma oil miscella gasify, and using compressor extraction compression, heating, boosting, is back to
Extractor is recycled or is back in the heat exchange tank in evaporator as hot solvent and exchanges heat, and liquefy n-butane solvent after heat exchange
It is back in solvent tank one；
3) by after the normal butane heating and gasifying in the curcuma oil miscella of extraction in evaporator, there are ginger in curcuma oil miscella
Butter, as curcuma oil extract liquor；
4) it is repeated a number of times extraction, becomes curcuma oil after the curcuma oil extract liquor repeatedly extracted is merged concentration.
2. a kind of technique for extracting curcumin from turmeric, it is characterised in that: the equipment that the extraction process utilizes includes extraction
Tank, evaporator, solvent tank two and compressor extract curcumin, extraction process using dimethyl ether when extraction are as follows:
1) after wet slag after extraction curcuma oil being steamed residual solvent, in same extractor, using dimethyl ether as extractant, in proportion
The dimethyl ether stored in solvent tank two is sent to extractor, when extracting curcumin, is extracted from turmeric in the way of counter-current extraction
Curcumin, the pressure for using dimethyl ether to extract curcumin as extractant are 0.5 ~ 1.2MPa, extraction temperature are as follows: 40 ~ 50 DEG C, obtain
Curcumin miscella；
2) the curcumin miscella of extraction is sent from extractor to evaporator, evaporator is interior by the dimethyl ether in curcumin miscella
Liquid evaporation makes the diformazan ether solvents in curcumin miscella gasify, and using compressor extraction compression, heating, boosting, is back to
Extractor is recycled or is back in the heat exchange tank in evaporator as hot solvent and exchanges heat, liquefied dimethyl ether liquid after heat exchange
Body is back in solvent tank two；
3) by after the dimethyl ether heating and gasifying in the curcumin miscella of extraction in evaporator, there are ginger in curcumin miscella
Flavine, as curcumin extract liquor；
4) it is repeated a number of times extraction, the curcumin liquid repeatedly extracted is mixed simultaneously, obtains curcumin medicinal extract after curcumin concentration.
3. the technique of a kind of extract oil from turmeric and curcumin according to claim 1 or 2, it is characterised in that: utilize
After normal butane or dimethyl ether extract curcuma oil or curcumin, obtained extract is positive fourth in curcuma oil or curcumin extract
Alkane or diformazan ether content are less than 500ppm.
4. the technique of a kind of extract oil from turmeric and curcumin according to claim 1 or 2, it is characterised in that: utilize
When normal butane or dimethyl ether extract curcuma oil or curcumin, extraction turmeric and weight of solvent ratio are as follows: turmeric: normal butane or dimethyl ether
=1:2 ~ 2.5.
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| CN87101355A (en) * | 1987-08-21 | 1988-10-12 | 淄博市淄川植物色素厂 | From turmeric, extract the method for pigment and volatile oil |
| CN1349978A (en) * | 2001-11-19 | 2002-05-22 | 祁鲲 | Fatty acyl amine extracting and purifying process with liquefied petroleum gas |
| CN101712812A (en) * | 2009-10-15 | 2010-05-26 | 云南瑞升烟草技术（集团）有限公司 | Method and device for extracting fat-soluble natural pigment |
| CN103071117A (en) * | 2013-01-18 | 2013-05-01 | 四川汇丰生物科技有限公司 | Method for extracting curcuma oil and curcumine from rhizoma curcumae longae |
| CN105647647A (en) * | 2016-01-07 | 2016-06-08 | 安阳市晶华油脂工程有限公司 | Energy-saving agilawood essential oil extraction complete plant and low-temperature extraction technique thereof |
| CN108404044A (en) * | 2018-04-25 | 2018-08-17 | 河南中医药大学 | A kind of compound plant stacte essential oil of Huoxue Jieyu |
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