CN105903227B - lavender absolute oil and preparation method thereof - Google Patents
lavender absolute oil and preparation method thereof Download PDFInfo
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- CN105903227B CN105903227B CN201610456414.4A CN201610456414A CN105903227B CN 105903227 B CN105903227 B CN 105903227B CN 201610456414 A CN201610456414 A CN 201610456414A CN 105903227 B CN105903227 B CN 105903227B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
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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
- C11B1/10—Production of fats or fatty oils from raw materials by extracting
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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
- C11B3/00—Refining fats or fatty oils
- C11B3/001—Refining fats or fatty oils by a combination of two or more of the means hereafter
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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
- C11B3/00—Refining fats or fatty oils
- C11B3/008—Refining fats or fatty oils by filtration, e.g. including ultra filtration, dialysis
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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
- C11B9/00—Essential oils; Perfumes
- C11B9/0003—Compounds of unspecified constitution defined by the chemical reaction for their preparation
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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
- C11B9/00—Essential oils; Perfumes
- C11B9/02—Recovery or refining of essential oils from raw materials
- C11B9/022—Refining
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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
- C11B9/00—Essential oils; Perfumes
- C11B9/02—Recovery or refining of essential oils from raw materials
- C11B9/025—Recovery by solvent extraction
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Abstract
The present invention relates to lavender absolute oil technical field, is a kind of lavender absolute oil and preparation method thereof；Carry out in the steps below：The first step, lavender medicinal extract is chosen, is 0.9 in mass ratio by the ethanol water that lavender medicinal extract and weight/mass percentage composition are 93% to 98%:1.8 to 1.1：Mixed liquor is obtained after 2.2 concussion mixing；Second step, freezing mixture is obtained after mixed liquor is stood into 2 hours to 5 hours at 5 DEG C to 10 DEG C.The present invention extracts lavender absolute oil using the medicinal extract of subcritical equipment extraction by the separation-extraction technology in later stage, not only contain volatility, and contain the non-volatile certain class compound of fragrance, linalool substantially increases with bergamio content in extraction gained absolute oil, camphor content reduces, and head perfume, basic note, bottom note are superior to the absolute oil of air-distillation, and its fragrance is fuller, fragrance is long and stablizes, micromolecular compound loss is few, is the optimum feed stock of the high-grade perfume of allotment and superfine product essential oil.
Description
Technical field
The present invention relates to lavender absolute oil technical field, is a kind of lavender absolute oil and preparation method thereof.
Background technology
Small grass of South China Science ＆ Engineering University Liu et al. digest-research of Subcritical water chromotagraphy husky ginger active ingredient, as a result
Show：Enzymolysis-Subcritical water chromotagraphy process, optimal temperature are 120 DEG C；Optimum extraction pressure is 8MPa；Enzyme concentration is 0.3%；
Inventory 100%；Extraction time is 20min；Effective component yield improves about 10% than SWE method in husky ginger essential oil；South China science and engineering is big
The Subcritical water chromotagraphy research that Guo Juan et al. carries out onion essential oil is learned, the optimum process condition said is：Static state extraction, during extraction
Between 30min, pressure 2 MPa, 100-150 DEG C of continuous program heating, petroleum ether is extractant, is extracted 2 times；It is foreign under the conditions of this
The yield of green onion essential oil is 0.362%, and sulfur-containing compound content is 97.36g/kg.Say that the 2L Subcritical water chromotagraphy devices of design are automatic
Change degree is high, easy to operate；South China Science ＆ Engineering University Guo Juan et al. has carried out the research of essential oil in Subcritical water chromotagraphy dried pepper, really
Fixed optimised process is；Raw material particle size 0.5mm, the heating of 40min, 100-150 DEG C of continuous program of extraction time, pressure
5MPa；The extraction yield of Japan pepper essential oil is 5.42% on this condition.Meanwhile oxidation test to Japan pepper essential oil allow；Foochow
University Guo bravely et al. can carry out super subcritical state CO2The research of extracting pyrethrin medicinal extract, obtained Optimizing Technical are：
Extracting pressure 20MPa, extraction temperature are 25 DEG C, CO2Gas velocity 100HL/h；Experiment shows that entrainer can strengthen effect of extracting；It is public
The number of opening be 101096614 Chinese patent literature disclose Yunnan Lei Sen scientific ＆ technical corporation woods hold outstanding person et al. invention Rosa Damascana it is true
Empty water dissipates flushing steaming subcritical abstraction technology and is characterized in that：The fragrant absorption of advanced head, the rear method for using vacuum boiling, makes oil-containing rose
Rare oil droplet expansion：The method extraction Rosa Damascana for rushing and steaming and being superimposed with rectifying is dissipated with water again, is parsed in the head perfume (or spice) to absorption.Through
The document above content enumerated shows：Domestic relevant husky ginger essential oil, onion essential oil, dried pepper essential oil, Rosa Damascana, pyrethrins
Document report has been shown in the research of medicinal extract subcritical abstraction technique, but the research about lavender absolute oil subcritical abstraction technique has no
Document report.
The absolute oil linalool and bergamio content that existing process air-distillation obtains are relatively low, and the content of its camphor compared with
It is high.
The content of the invention
The invention provides a kind of lavender absolute oil and preparation method thereof, the deficiency of above-mentioned prior art, its energy are overcome
Effectively solve the obtained absolute oil linalool of existing process air-distillation and bergamio content be relatively low, and the content of its camphor compared with
The problem of high.
One of technical scheme is realized by following measures：A kind of lavender absolute oil, as follows
Obtain：The first step, lavender medicinal extract is chosen, lavender medicinal extract and weight/mass percentage composition are pressed for 93% to 98% ethanol water
Mass ratio is 0.9:1.8 to 1.1：Mixed liquor is obtained after 2.2 concussion mixing；Second step, by mixed liquor in -5 DEG C to -10 DEG C standings
Freezing mixture is obtained after 2 hours to 5 hours；3rd step, by freezing mixture after 300 mesh to 400 mesh filter-cloth filterings, then use
Buchner funnel obtains filtrate after being filtered；4th step, lavender absolute oil of the present invention is obtained after the recovered ethanol water of filtrate.
Here is the further optimization and/or improvements to one of foregoing invention technical scheme：
Above-mentioned lavender medicinal extract obtains as follows：The first step, choose lavender fresh flower；Second step is fresh by lavender
Flower is put into subcritical abstraction kettle, is 2Mpa to 4Mpa in extracting pressure, will extraction under conditions of 30 DEG C to 40 DEG C of extraction temperature
Agent R134a is imported for 8 gram/minutes to 12 gram/minutes by pump discharge of pressurizeing and continuous extraction 1 hour is carried out in subcritical abstraction kettle
Lavender fluid was obtained to 2 hours；3rd step, lavender fluid is flowed into subcritical separating still from subcritical abstraction kettle and dropped
Separated under to normal temperature and pressure, obtain lavender medicinal extract.
The method of above-mentioned recovery ethanol water is the rotating speed 12 at 40 degrees Celsius to 45 degrees Celsius with Rotary Evaporators
Rev/min to 14 revs/min, vacuum reclaims ethanol water 1 hour to 5 hours under the conditions of being 0.07Mpa to 0.08Mpa.
The ethanol water concussion incorporation time that above-mentioned lavender medicinal extract and weight/mass percentage composition are 95% is 20 minutes to 40
Minute.
Filter paper used is qualitative filter paper in above-mentioned Buchner funnel.
The two of technical scheme are realized by following measures：A kind of preparation method of lavender absolute oil,
Carry out in the steps below：The first step, lavender medicinal extract is chosen, by the second that lavender medicinal extract and weight/mass percentage composition are 93% to 98%
Alcohol solution is 0.9 in mass ratio:1.8 to 1.1：Mixed liquor is obtained after 2.2 concussion mixing；Second step, by mixed liquor at -5 DEG C
Freezing mixture is obtained after standing 2 hours to 5 hours to -10 DEG C；3rd step, by freezing mixture through 300 mesh to 400 mesh filter clothes
After filtering, then filtrate is obtained after being filtered with Buchner funnel；4th step, the present invention is obtained after the recovered ethanol water of filtrate
Lavender absolute oil.
Here is two further optimization and/or improvements to foregoing invention technical scheme：
Above-mentioned lavender medicinal extract obtains as follows：The first step, choose lavender fresh flower；Second step is fresh by lavender
Flower is put into subcritical abstraction kettle, is 2Mpa to 4Mpa in extracting pressure, will extraction under conditions of 30 DEG C to 40 DEG C of extraction temperature
Agent R134a is imported for 8 gram/minutes to 12 gram/minutes by pump discharge of pressurizeing and continuous extraction 1 hour is carried out in subcritical abstraction kettle
Lavender fluid was obtained to 2 hours；3rd step, lavender fluid is flowed into subcritical separating still from subcritical abstraction kettle and dropped
Separated under to normal temperature, obtain lavender medicinal extract.
The method of above-mentioned recovery ethanol water is the rotating speed 12 at 40 degrees Celsius to 45 degrees Celsius with Rotary Evaporators
Rev/min to 14 revs/min, vacuum reclaims ethanol water 1 hour to 5 hours under the conditions of being 0.07Mpa to 0.08Mpa.
The ethanol water concussion incorporation time that above-mentioned lavender medicinal extract and weight/mass percentage composition are 95% is 20 minutes to 40
Minute.
Filter paper used is qualitative filter paper in above-mentioned Buchner funnel.
The present invention extracts lavender absolute oil using the medicinal extract of subcritical equipment extraction by the separation-extraction technology in later stage, no
Only contain volatility, and containing the non-volatile certain class compound of fragrance, linalool and acetic acid virtue camphor tree in absolute oil obtained by extraction
Ester content substantially increases, and camphor content reduces, and head perfume, basic note, bottom note are superior to the absolute oil of air-distillation, and its fragrance is more full
Completely, fragrance is long and stablizes, and micromolecular compound loss is few, is the optimum feed stock of the high-grade perfume of allotment and superfine product essential oil.
Embodiment
The present invention is not limited by following embodiments, can technique according to the invention scheme and actual conditions it is specific to determine
Embodiment.
Embodiment 1, the preparation method of the lavender absolute oil, is obtained in the steps below：The first step, lavender medicinal extract is chosen,
It is 0.9 in mass ratio by the ethanol water that lavender medicinal extract and weight/mass percentage composition are 93% to 98%:1.8 to 1.1：2.2 shake
Mixed liquor is obtained after swinging mixing；Second step, freezing mixing is obtained after mixed liquor is stood into 2 hours to 5 hours at -5 DEG C to -10 DEG C
Liquid；3rd step, by freezing mixture after 300 mesh to 400 mesh filter-cloth filterings, then filtered after being filtered with Buchner funnel
Liquid；4th step, lavender absolute oil of the present invention is obtained after the recovered ethanol water of filtrate.
Embodiment 2, the preparation method of the lavender absolute oil, is obtained in the steps below：The first step, lavender medicinal extract is chosen,
It is 0.9 in mass ratio by the ethanol water that lavender medicinal extract and weight/mass percentage composition are 93% to 98%:1.8 to 1.1：2.2 shake
Mixed liquor is obtained after swinging mixing；Second step, freezing mixing is obtained after mixed liquor is stood into 2 hours or 5 hours at -5 DEG C or -10 DEG C
Liquid；3rd step, by freezing mixture after 300 mesh or 400 mesh filter-cloth filterings, then filtered after being filtered with Buchner funnel
Liquid；4th step, lavender absolute oil of the present invention is obtained after the recovered ethanol water of filtrate.
Embodiment 3, optimizes as above-described embodiment, and the lavender medicinal extract obtains as follows：The first step, selection smoke clothing
Careless fresh flower；Second step, lavender fresh flower is put into subcritical abstraction kettle, is 2Mpa to 4Mpa in extracting pressure, extraction temperature
It is under conditions of 30 DEG C to 40 DEG C that extractant R134a is subcritical for the importing of 8 gram/minutes to 12 gram/minutes by pump discharge of pressurizeing
Continuous extraction is carried out in extraction kettle and obtains lavender fluid within 1 hour to 2 hours；3rd step, by lavender fluid from subcritical extraction
Take to flow into subcritical separating still to be down under normal temperature in kettle and separated, obtain lavender medicinal extract.
Embodiment 4, optimize as above-described embodiment, the method for reclaiming ethanol water is Celsius 40 with Rotary Evaporators
For degree to 45 degrees Celsius, rotating speed is 12 revs/min to 14 revs/min, and vacuum reclaims ethanol water under the conditions of being 0.07Mpa to 0.08Mpa
Solution 1 hour to 5 hours.
Embodiment 5, optimize as above-described embodiment, lavender medicinal extract and the ethanol water that weight/mass percentage composition is 95%
It is 20 minutes to 40 minutes to shake incorporation time.
Embodiment 6, optimize as above-described embodiment, filter paper used is qualitative filter paper in Buchner funnel.
Embodiment 7, the lavender absolute oil are obtained by following preparation methods：The first step, lavender fresh flower is sent into extraction kettle
In, extractant R134a is imported in knockout drum with force (forcing) pump, is 2Mpa in extracting pressure, enters under conditions of 30 DEG C of extraction temperature
Row continuous extraction obtains lavender fluid for 1 hour, and wherein extractant R134a flow is 8 gram/minutes, is flowed out from extraction kettle
Extractant R134a fluids pressure is discharged directly in separating still under normal temperature and pressure, make extractant R134a and lavender fluid
Isolated lavender medicinal extract, it is in mass ratio by the ethanol water that lavender medicinal extract and weight/mass percentage composition are 93% to 98%
0.9:1.8 to 1.1：Mixed liquor is obtained after 2.2 concussion mixing；Second step, freezed after mixed liquor is stood into 3h at a temperature of -5 DEG C
Obtain freezing mixture；3rd step, add qualitative filter paper to be filtered with Buchner funnel with 300 mesh filter clothes freezing mixture and filtered
Liquid；4th step, by the filtrate recycling ethanol aqueous solution, with Rotary Evaporators at 40 degrees Celsius, rotating speed is 12 revs/min to 14 revs/min,
Recovery ethanol water obtains lavender absolute oil in 2 hours under the conditions of vacuum is 0.07Mpa.
Embodiment 8, the lavender absolute oil are obtained by following preparation methods：The first step, lavender fresh flower is sent into extraction kettle
In, extractant R134a is imported in knockout drum with force (forcing) pump, is 3Mpa in extracting pressure, enters under conditions of 35 DEG C of extraction temperature
Row continuous extraction obtains lavender fluid for 1.5 hours, and wherein extractant R134a flow is 10 gram/minutes, is flowed from extraction kettle
The extractant R134a fluids gone out discharge pressure under normal temperature and pressure, making extractant R134a be flowed with lavender directly in separating still
The isolated lavender medicinal extract of body, by ethanol water that lavender medicinal extract and weight/mass percentage composition are 93% to 98% in mass ratio
For 0.9:1.8 to 1.1：Mixed liquor is obtained after 2.2 concussion mixing；Second step, mixed liquor is stood at a temperature of -7 DEG C cold after 4h
Jelly obtains freezing mixture；3rd step, add qualitative filter paper to be filtered with Buchner funnel with 300 mesh filter clothes freezing mixture and filtered
Liquid；4th step, by the filtrate recycling ethanol aqueous solution, with Rotary Evaporators at 42 degrees Celsius, rotating speed is 12 revs/min to 14 revs/min,
Recovery ethanol water obtains lavender absolute oil in 2.5 hours under the conditions of vacuum is 0.075Mpa.
Embodiment 9, the lavender absolute oil are obtained by following preparation methods：The first step, lavender fresh flower is sent into extraction kettle
In, extractant R134a is imported in knockout drum with force (forcing) pump, is 4Mpa in extracting pressure, enters under conditions of 40 DEG C of extraction temperature
Row continuous extraction obtains lavender fluid for 2 hours, and wherein extractant R134a flow is 12 gram/minutes, is flowed out from extraction kettle
Extractant R134a fluids pressure is discharged directly in separating still under normal temperature and pressure, make extractant R134a and lavender fluid
Isolated lavender medicinal extract, it is in mass ratio by the ethanol water that lavender medicinal extract and weight/mass percentage composition are 93% to 98%
0.9:1.8 to 1.1：Mixed liquor is obtained after 2.2 concussion mixing；Second step, freezed after mixed liquor is stood into 3h at a temperature of -10 DEG C
Obtain freezing mixture；3rd step, add qualitative filter paper to be filtered with Buchner funnel with 400 mesh filter clothes freezing mixture and filtered
Liquid；4th step, by the filtrate recycling ethanol aqueous solution, with Rotary Evaporators at 45 degrees Celsius, rotating speed is 12 revs/min to 14 revs/min,
Recovery ethanol water obtains lavender absolute oil in 2 hours under the conditions of vacuum is 0.075Mpa.
The representative component content for the lavender absolute oil of the present invention that embodiment 7 obtains is shown in Table 1；What embodiment 8 obtained
The representative component content of lavender absolute oil of the present invention is shown in Table 2；The representative for the lavender absolute oil of the present invention that embodiment 9 obtains
Property constituent content is shown in Table 3；From table 1, table 2 and table 3 as can be seen that the lavender absolute oil that the present invention obtains not only contains volatilization
Property, and containing the certain class compound of non-volatile fragrance, wherein working substance linalool and bergamio content with it is existing often
Pressure distillation extraction process, which relatively has, largely to be improved, and the restricted index camphor content of most critical, which has, largely to be declined, extraction
Gained absolute oil is taken, head perfume, basic note, bottom note are superior to the absolute oil of air-distillation, and its fragrance is fuller, fragrance is long and stablizes,
Micromolecular compound loss is few, is the optimum feed stock of the high-grade perfume of allotment and superfine product essential oil, rationally make use of and smoke in production process
Clothing grass resource, improves the utilization rate of lavender, and extractant is to recycle, environmental protection, low consumption, pollution-free.
In summary, the lavender absolute oil that the present invention obtains, not only contains volatility, and contain non-volatile fragrance one
Determine class compound, wherein working substance linalool has with bergamio content and largely improved, the restricted index of most critical
Camphor content, which has, largely to be declined, and extraction gained absolute oil, head perfume, basic note, bottom note are superior to the essential oil of air-distillation, its fragrance
It is fuller, fragrance is long and stablizes, micromolecular compound loss is few, is the optimal original of the high-grade perfume of allotment and superfine product essential oil
To expect, lavender resource is rationally make use of in production process, improve the utilization rate of lavender, extractant is to recycle, environmental protection,
It is low consumption, pollution-free.
Above technical characteristic constitutes embodiments of the invention, and it has stronger adaptability and implementation result, can basis
The non-essential technical characteristic of increase and decrease is actually needed, to meet the needs of different situations.
Claims (10)
1. a kind of lavender absolute oil, it is characterised in that obtain as follows：The first step, lavender medicinal extract is chosen, by lavender
The ethanol water that medicinal extract and weight/mass percentage composition are 93% to 98% is 0.9 in mass ratio:1.8 to 1.1：After 2.2 concussion mixing
Obtain mixed liquor；Second step, freezing mixture is obtained after mixed liquor is stood into 2 hours to 5 hours at -5 DEG C to -10 DEG C；3rd
Step, by freezing mixture after 300 mesh to 400 mesh filter-cloth filterings, then obtains filtrate after being filtered with Buchner funnel；4th
Walk, lavender absolute oil of the present invention is obtained after the recovered ethanol water of filtrate；Wherein：
The lavender medicinal extract obtains as follows：The first step, choose lavender fresh flower；Second step, lavender fresh flower is put into
It is 2Mpa to 4Mpa in extracting pressure in subcritical abstraction kettle, by extractant R134a under conditions of 30 DEG C to 40 DEG C of extraction temperature
Imported by pump discharge of pressurizeing for 8 gram/minutes to 12 gram/minutes and continuous extraction 1 hour to 2 hours is carried out in subcritical abstraction kettle
Obtain lavender fluid；3rd step, lavender fluid is flowed into subcritical separating still from subcritical abstraction kettle and is down to normal temperature
Under separated, obtain lavender medicinal extract.
2. lavender absolute oil according to claim 1, it is characterised in that the method for reclaiming ethanol water is to be steamed with rotation
Instrument is sent out at 40 degrees Celsius to 45 degrees Celsius, rotating speed is 12 revs/min to 14 revs/min, and vacuum is 0.07Mpa to 0.08Mpa conditions
Lower recovery ethanol water 1 hour to 5 hours.
3. lavender absolute oil according to claim 1 or 2, it is characterised in that lavender medicinal extract and weight/mass percentage composition are
95% ethanol water concussion incorporation time is 20 minutes to 40 minutes.
4. lavender absolute oil according to claim 1 or 2, it is characterised in that filter paper used is qualitative filter in Buchner funnel
Paper.
5. lavender absolute oil according to claim 3, it is characterised in that filter paper used is qualitative filter paper in Buchner funnel.
6. a kind of preparation method of lavender absolute oil according to claim 1, it is characterised in that carry out in the steps below：The
One step, lavender medicinal extract is chosen, by ethanol water that lavender medicinal extract and weight/mass percentage composition are 93% to 98% in mass ratio
For 0.9:1.8 to 1.1：Mixed liquor is obtained after 2.2 concussion mixing；Second step, mixed liquor is stood 2 hours at -5 DEG C to -10 DEG C
Freezing mixture is obtained after to 5 hours；3rd step, by freezing mixture after 300 mesh to 400 mesh filter-cloth filterings, then use Bu Shi
Funnel obtains filtrate after being filtered；4th step, lavender absolute oil of the present invention is obtained after the recovered ethanol water of filtrate；Its
In：
The lavender medicinal extract obtains as follows：The first step, choose lavender fresh flower；Second step, lavender fresh flower is put into
It is 2Mpa to 4Mpa in extracting pressure in subcritical abstraction kettle, by extractant R134a under conditions of 30 DEG C to 40 DEG C of extraction temperature
Imported by pump discharge of pressurizeing for 8 gram/minutes to 12 gram/minutes and continuous extraction 1 hour to 2 hours is carried out in subcritical abstraction kettle
Obtain lavender fluid；3rd step, lavender fluid is flowed into subcritical separating still from subcritical abstraction kettle and is down to normal temperature
Under separated, obtain lavender medicinal extract.
7. the preparation method of lavender absolute oil according to claim 6, it is characterised in that the method for reclaiming ethanol water
For with Rotary Evaporators, at 40 degrees Celsius to 45 degrees Celsius, rotating speed is 12 revs/min to 14 revs/min, vacuum be 0.07Mpa extremely
Ethanol water is reclaimed under the conditions of 0.08Mpa 1 hour to 5 hours.
8. the preparation method of the lavender absolute oil according to claim 6 or 7, it is characterised in that lavender medicinal extract and quality hundred
The ethanol water concussion incorporation time that point content is 95% is 20 minutes to 40 minutes.
9. the preparation method of the lavender absolute oil according to claim 6 or 7, it is characterised in that filter used in Buchner funnel
Paper is qualitative filter paper.
10. the preparation method of lavender absolute oil according to claim 8, it is characterised in that filter paper used in Buchner funnel
For qualitative filter paper.
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| CN108865440A (en) * | 2018-05-23 | 2018-11-23 | 菏泽瑞璞牡丹产业科技发展有限公司 | A kind of method of subcritical abstraction fresh peony flower medicinal extract |
| EP3914679A4 (en) * | 2019-01-22 | 2022-12-21 | BMV Fragrances [P] Ltd. | Process for producing synthetic absolutes and products thereof |
| CN110665253B (en) * | 2019-11-04 | 2021-04-06 | 三益创价生物科技(深圳)有限公司 | High-efficiency multifunctional SCF device and consistent operation type multifunctional SCF device |
| CN117126700A (en) * | 2023-08-31 | 2023-11-28 | 广州杨森药业有限公司 | Jasmine flower oil and extraction method and application thereof |
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| CN105505583A (en) * | 2015-11-24 | 2016-04-20 | 郑州雪麦龙食品香料有限公司 | A method of extracting bay leaf oil from bay leaves with subcritical n-butane fluid |
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| CN102676299A (en) * | 2012-05-16 | 2012-09-19 | 沈阳化工大学 | Reinforced extraction method for lavender essential oil |
| CN104120037A (en) * | 2014-08-08 | 2014-10-29 | 广西壮族自治区林业科学研究院 | Extracting method for jasmine flower essential oil |
| CN105505583A (en) * | 2015-11-24 | 2016-04-20 | 郑州雪麦龙食品香料有限公司 | A method of extracting bay leaf oil from bay leaves with subcritical n-butane fluid |
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