CN106190574A - A kind of Atractylodes lancea (Thunb.) DC. volatile oil and preparation method thereof - Google Patents
A kind of Atractylodes lancea (Thunb.) DC. volatile oil and preparation method thereof Download PDFInfo
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- CN106190574A CN106190574A CN201610599998.0A CN201610599998A CN106190574A CN 106190574 A CN106190574 A CN 106190574A CN 201610599998 A CN201610599998 A CN 201610599998A CN 106190574 A CN106190574 A CN 106190574A
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- China
- Prior art keywords
- thunb
- volatile oil
- atractylodes lancea
- extraction
- root
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
-
- 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
-
- 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
-
- 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
- C11B9/027—Recovery of volatiles by distillation or stripping
Abstract
The invention discloses a kind of Atractylodes lancea (Thunb.) DC. volatile oil and preparation method thereof, described preparation method is the method that non-solvent microwave extracts Atractylodes lancea (Thunb.) DC. volatile oil continuously.Step is: the acquisition of Atractylodes lancea (Thunb.) DC. powder；The extraction of Atractylodes lancea (Thunb.) DC. volatile oil；The acquisition of Atractylodes lancea (Thunb.) DC. volatile oil.The present invention utilizes microwave assisting method to extract the dry Atractylodes lancea (Thunb.) DC. through wettability treatment continuously, makes organization internal moisture fast vaporizing, is taken out of by in-house quintessence oil, separated obtains quintessence oil after drying.The extracting method of the Atractylodes lancea (Thunb.) DC. volatile oil that the present invention relates to has the following characteristics that and does not uses organic solvent, no solvent residue；Extraction rate is fast, extraction efficiency is high, and volatile ingredient heated time is short, and fragrance loss is few, has green, the advantage such as quick and energy-conservation.
Description
Technical field
The present invention relates to volatile oil is drawn technology, be specifically related to a kind of Atractylodes lancea (Thunb.) DC. volatile oil and preparation method thereof.
Background technology
Atractylodes lancea (Thunb.) DC. (Atractylodes lancea (Thunb.) DC.), also referred to as RHIZOMA ATRACTYLODIS IANCEAE, for feverfew, happiness is nice and cool
The weather being dried, its rhizome surface taupe brown, there are wrinkle, lateral flexure stricture of vagina and mark of fibrous root；Matter is solid, section yellow-white or canescence,
There is most rufous grease chamber；Gas perfume (or spice) is special, and taste is micro-sweet, pungent, bitter.Atractylodes lancea (Thunb.) DC. is mainly containing volatile oil, and the composition of oil mainly has thatch grey
Art element, β-eucalyptol, hinesol, hydroxyl Atractylodes lancea (Thunb.) DC. ketone etc..Modern pharmacological research find Atractylodes lancea (Thunb.) DC. volatile oil have stomach invigorating of dispeling the wind,
Antiinflammatory, blood sugar lowering, antioxidation, anti-bacteria and anti-virus, protect the liver, diuresis, the effect such as arrhythmia.
Commonly used steam distillation (HD) method in the extraction of plant volatile oil.Steam distillation is will to become containing volatility
The coarse powder of point medical material or fragment, soaking moistening after, straight fire adds thermal distillation or is passed through steam distillation, it is possible at Chinese medicine extracting tank
In decoction limit, medical material limit is distilled, the volatile ingredient in medical material takes out of with vapor distillation, condensed after collect distillate,
Typically need to distill more than twice, to improve extraction ratio, finally collect distillate；Steam distillation distills number of times unsuitable too much,
In order to avoid the oxidation of some composition or decomposition in volatile oil.Steam distillation needs, by raw material continuous heating, in most cases to need
Continuous still a few hours, therefore it is not suitable for the extraction of unstable chemcial property component.Extraction by steam distillation process time
Long, temperature height, open system, its process easily causes thermally labile and the destruction of oxidizable composition and volatilization loss, to extraction group
Divide and have destruction.
Summary of the invention
In order to solve the deficiencies in the prior art, the invention provides a kind of Atractylodes lancea (Thunb.) DC. volatile oil and preparation method thereof.
The technical scheme is that the extracting method of a kind of Atractylodes lancea (Thunb.) DC. volatile oil, the Atractylodes lancea (Thunb.) DC. root of abundant moistening is put
Enter microwave extraction in microwave reaction unit, extract gained volatile oil volatile oil extractor and collect.
Further improvement of the present invention includes:
After extraction terminates, in extract, add the anhydrous sodium sulfate slightly putting forward volatile oil weight 1/5～1/4, at 4 DEG C of environment
In be dried overnight and obtain Atractylodes lancea (Thunb.) DC. volatile oil.
Described Atractylodes lancea (Thunb.) DC. root is ground into 20～200 mesh.
Described wet processes is: adds Atractylodes lancea (Thunb.) DC. root and controls, at 5:1～1:2, then to soak with distilled water mass ratio, soaks
Time 30min.
Described Atractylodes lancea (Thunb.) DC. root moistening is not less than 1/3 to its moisture.
The power of described microwave reaction device is 300-900W.
Described method, it concretely comprises the following steps: accurately weighs 50g Atractylodes lancea (Thunb.) DC. root sample in flask, adds 50mL distillation
Water soaking 30min, upper end is installed light oil volatile oil extractor and condensing tube, is then placed in XH-300UL computer microwave ultrasound wave purple
The combination of outer light is extracted 4 times in catalyzing and synthesizing instrument successively, extracts and collects volatile oil after terminating, adds Atractylodes lancea (Thunb.) DC. crude extract quality 1/5
～the anhydrous sodium sulfate of 1/4, it is dried overnight in 4 DEG C of refrigerators and obtains Rhzoma Atractylodis Lanceae volatile oil；First time extraction setup parameter: 300W,
40min, second time extraction setup parameter: 500W, 40min, third time extraction setup parameter: 700W, 40min, extracts for the 4th time
Setup parameter: 900W, 40min.
Another object of the present invention is to provide a kind of Atractylodes lancea (Thunb.) DC. volatile oil prepared according to the method described above.
The present invention utilizes non-solvent microwave extraction method to extract Atractylodes lancea (Thunb.) DC. volatile oil, by contained humidity intracellular in extract
Absorbing microwave, when temperature raises rapidly, ICP is also gradually increased and swelling fracture, and volatile component spreads the most automatically,
And be together distilled out with steam, more condensed device refrigerated separation, reclaim and obtain volatile component.The method selectivity
The advantages such as high, equipment is simple, extraction efficiency is high, non-environmental-pollution, and continuous operation can be realized.Carry at non-solvent microwave
Any organic solvent is not added so that extract product final no solvent residue, it is to avoid have during the whole extraction followed the example of
The pollution to sample of the machine solvent.Further, the non-solvent microwave extraction method used time is short, it is possible to reduce volatile component generation chemical change
Probability.Therefore the method has preferable market prospect and application value, it is adaptable to carrying of high-purity volatile oil component
Take.
Along with the development of technology, some new volatile oil is drawn technology constantly produce.Non-solvent microwave extracts
(SFME) method is to load in bottle by extract, is added without any solvent at ambient pressure, utilizes intracellular institute in extract aqueous
Dividing and absorb microwave, when temperature slowly raises, ICP is also gradually increased and swelling fracture, and volatile component spreads the most automatically,
And be together distilled out with water vapour, more condensed device refrigerated separation, reclaim and obtain volatile component.Whole in SFME method
Any solvent is not added, it is to avoid the adventitious solvent interference to sample component so that extract product solvent-free during extraction
Residual.Further, the SFME method used time is short, it is possible to reduce the probability of volatile component generation chemical change.
The present invention makes full use of the feature of non-solvent microwave extraction method, has that selectivity is high, equipment simple, extraction efficiency
The advantages such as height, non-environmental-pollution, are the extracting method of the Atractylodes lancea (Thunb.) DC. volatile oil of a kind of " environmentally friendly, resource-conserving ", suitable
For industrialized production.The method is equally applicable to the extraction of other kinds volatile oil.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is elaborated.
A kind of method that present invention aim to provide Atractylodes lancea (Thunb.) DC. volatile oil.
The technical scheme is that the extracting method of a kind of Atractylodes lancea (Thunb.) DC. volatile oil, step is:
(1) the Atractylodes lancea (Thunb.) DC. root of fresh collection is cleaned up, after drying, pulverize and seal that to be placed in 4 DEG C of Refrigerator stores standby.
(2) accurately weigh Atractylodes lancea (Thunb.) DC. root sample in flask, add appropriate distilled water immersion, make the abundant moistening of sample, so
After put into microwave reaction device firm power extract, extract gained volatile oil volatile oil extractor collect；
(3) according to the real needs of volatile oil is drawn, volatile ingredient can disposably extract, or stage extraction；
(4) with fearing volatile oil after extraction terminates, the anhydrous sodium sulfate slightly putting forward volatile oil weight 1/5～1/4 is added, at 4 DEG C
Refrigerator is dried overnight and obtains Atractylodes lancea (Thunb.) DC. volatile oil.
Atractylodes lancea (Thunb.) DC. root sample comminution described in step (1) becomes 20～200 mesh.
In addition Atractylodes lancea (Thunb.) DC. root sample described in step (2), the addition of distilled water should maintain moisture is sample size
1/3, soak time 30min.
4 microwave radiation exaraction described in step (3) use power to be 300～900W.
The preparation method of above-mentioned a kind of Atractylodes lancea (Thunb.) DC. volatile oil, it is characterised in that can realize extracting continuously.
Embodiment 1
(1) acquisition of Atractylodes lancea (Thunb.) DC. powder:
The Atractylodes lancea (Thunb.) DC. root of fresh collection is cleaned up, after drying, pulverized 60 mesh sieves.
(2) extraction of Atractylodes lancea (Thunb.) DC. volatile oil:
Accurately weigh 50g Atractylodes lancea (Thunb.) DC. root sample in flask, add 50mL distilled water immersion 30min, be then placed in XH-
The combination of 300UL computer microwave ultrasound wave ultraviolet light is extracted 5 times with firm power 500W in catalyzing and synthesizing instrument.Process for the first time
20min, second time processes 30min, and third time processes 40min, processes 50min for the 4th time, processes 60min the 5th time.
(3) acquisition of Atractylodes lancea (Thunb.) DC. volatile oil:
Extraction collects volatile oil with glue head dropper after terminating, and then cleans the sample on glue head dropper with ether.Add thatch
The anhydrous sodium sulfate of Rhizoma Atractylodis root example weight 1/5～1/4, is dried overnight in 4 DEG C of refrigerators and there are Atractylodes lancea (Thunb.) DC. volatile oil.
Embodiment 2
(1) acquisition of Atractylodes lancea (Thunb.) DC. powder:
The Atractylodes lancea (Thunb.) DC. root of fresh collection is cleaned up, after drying, pulverized 60 mesh sieves.
(2) extraction of Atractylodes lancea (Thunb.) DC. volatile oil:
Accurately weigh 50g Atractylodes lancea (Thunb.) DC. root sample in flask, add 50mL distilled water immersion 30min, be then placed in XH-
The combination of 300UL computer microwave ultrasound wave ultraviolet light is extracted 4 times in catalyzing and synthesizing instrument.Setup parameter for the first time: 300W, 40min, the
Secondary setup parameter: 500W, 40min, for the third time setup parameter: 700W, 40min, the 4th setup parameter: 900W, 40min.
(3) acquisition of Atractylodes lancea (Thunb.) DC. volatile oil:
Extraction collects volatile oil with glue head dropper after terminating, and then cleans the sample on glue head dropper with ether.Add thatch
The anhydrous sodium sulfate of Rhizoma Atractylodis root example weight 1/5～1/4, is dried overnight in 4 DEG C of refrigerators and there are Atractylodes lancea (Thunb.) DC. volatile oil.
Embodiment 3
(1) acquisition of Atractylodes lancea (Thunb.) DC. powder:
The Atractylodes lancea (Thunb.) DC. root of fresh collection is cleaned up, after drying, pulverized 80 mesh sieves.
(2) extraction of Atractylodes lancea (Thunb.) DC. volatile oil:
Accurately weigh 50g Atractylodes lancea (Thunb.) DC. root sample in flask, add a certain amount of distilled water immersion 30min, be then placed in
In the combination of XH-300UL computer microwave ultrasound wave ultraviolet light catalyzes and synthesizes instrument, firm power 500W extracts 40min.Feed liquid for the first time
Ratio is 3:1, and solid-liquid ratio is for the second time: 2:1, and solid-liquid ratio is for the third time: 1:1, and the 4th time solid-liquid ratio is: 1:2, the 5th solid-liquid ratio
For: 1:3.
(3) acquisition of Atractylodes lancea (Thunb.) DC. volatile oil:
Extraction uses glue head dropper by volatile oil sucking-off after terminating, add the anhydrous sulfur of Atractylodes lancea (Thunb.) DC. root example weight 1/5～1/4
Acid sodium, is dried overnight in 4 DEG C of refrigerators and there are Atractylodes lancea (Thunb.) DC. volatile oil.
The present invention utilizes non-solvent microwave extraction method to extract Atractylodes lancea (Thunb.) DC. volatile oil, by contained humidity intracellular in extract
Absorbing microwave, when temperature raises rapidly, ICP is also gradually increased and swelling fracture, and volatile component spreads the most automatically,
And be together distilled out with steam, more condensed device refrigerated separation, reclaim and obtain volatile component.The method selectivity
The advantages such as high, equipment is simple, extraction efficiency is high, non-environmental-pollution, and continuous operation can be realized.Carry at non-solvent microwave
Any organic solvent is not added so that extract product final no solvent residue, it is to avoid have during the whole extraction followed the example of
The pollution to sample of the machine solvent.Further, the non-solvent microwave extraction method used time is short, it is possible to reduce volatile component generation chemical change
Probability.Therefore the method has preferable market prospect and application value, it is adaptable to carrying of high-purity volatile oil component
Take.
The present invention makes full use of the feature of non-solvent microwave extraction method, has that selectivity is high, equipment simple, extraction efficiency
The advantages such as height, non-environmental-pollution, are the extracting method of the Atractylodes lancea (Thunb.) DC. volatile oil of a kind of " environmentally friendly, resource-conserving ", warp
Industrialized production it is applicable to after amplification.The method is equally applicable to the extraction of other kinds volatile oil.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.The technology of the industry
Personnel, it should be appreciated that the present invention is not restricted to the described embodiments, simply illustrating this described in above-described embodiment and description
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, and these become
Change and improvement both falls within scope of the claimed invention.Claimed scope by appending claims and
Equivalent defines.
Claims (8)
1. the extracting method of an Atractylodes lancea (Thunb.) DC. volatile oil, it is characterised in that the Atractylodes lancea (Thunb.) DC. root of abundant moistening is put into microwave reaction
Microwave extraction in device, extracts gained volatile oil volatile oil extractor and collects.
Method the most according to claim 1, it is characterised in that extract after terminating, add in extract and slightly carry volatile oil
The anhydrous sodium sulfate of weight 1/5～1/4, is dried overnight in 4 DEG C of environment and obtains Atractylodes lancea (Thunb.) DC. volatile oil.
Method the most according to claim 1, it is characterised in that described Atractylodes lancea (Thunb.) DC. root is ground into 20～200 mesh.
Method the most according to claim 1, it is characterised in that described wet processes is: add Atractylodes lancea (Thunb.) DC. root and distilled water
Mass ratio controls, at 5:1～1:2, then to soak, soak time 30min.
5. according to the method described in claim 1 or 4, it is characterised in that described Atractylodes lancea (Thunb.) DC. root moistening is the lowest to its moisture
In 1/3.
6. according to the method described in any one of claim 1-4, it is characterised in that the power of described microwave reaction device is 300-
900W。
Method the most according to claim 1, it is characterised in that concretely comprise the following steps: accurately weigh 50g Atractylodes lancea (Thunb.) DC. root sample in
In flask, adding 50mL distilled water immersion 30min, light oil volatile oil extractor and condensing tube are installed in upper end, are then placed in XH-
The combination of 300UL computer microwave ultrasound wave ultraviolet light is extracted 4 times in catalyzing and synthesizing instrument successively, extracts and collects volatile oil after terminating, adds
Enter the anhydrous sodium sulfate of Atractylodes lancea (Thunb.) DC. crude extract quality 1/5～1/4, be dried overnight in 4 DEG C of refrigerators and obtain Rhzoma Atractylodis Lanceae volatile oil；First
Secondary extraction setup parameter: 300W, 40min, second time extraction setup parameter: 500W, 40min, third time extraction setup parameter:
700W, 40min, the 4th extraction setup parameter: 900W, 40min.
8. an Atractylodes lancea (Thunb.) DC. volatile oil, it is characterised in that prepare according to such as claim 1-4,7 any one methods.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610599998.0A CN106190574A (en) | 2016-07-28 | 2016-07-28 | A kind of Atractylodes lancea (Thunb.) DC. volatile oil and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610599998.0A CN106190574A (en) | 2016-07-28 | 2016-07-28 | A kind of Atractylodes lancea (Thunb.) DC. volatile oil and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108048217A (en) * | 2017-12-13 | 2018-05-18 | 武汉轻工大学 | A kind of feverfew volatile oil high-efficiency device for extracting and method |
| CN109222213A (en) * | 2018-08-03 | 2019-01-18 | 云南瑞升烟草技术（集团）有限公司 | The green Extraction and enrichment and isolation and purification method of neophytadiene in a kind of tobacco material |
| CN110898030A (en) * | 2019-12-10 | 2020-03-24 | 苏州科技大学 | Method for extracting dandelion effective component composite targeting drug by ultraviolet illumination-ultrasound-microwave synergistic technology |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0698076A1 (en) * | 1993-05-11 | 1996-02-28 | Archimex | Method and plant for solvent-free microwave extraction of natural products |
| CN105713726A (en) * | 2016-03-31 | 2016-06-29 | 李颖 | Method and device for rapidly extracting natural plant essential oil and hydrolat without solvents |
-
2016
- 2016-07-28 CN CN201610599998.0A patent/CN106190574A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0698076A1 (en) * | 1993-05-11 | 1996-02-28 | Archimex | Method and plant for solvent-free microwave extraction of natural products |
| CN105713726A (en) * | 2016-03-31 | 2016-06-29 | 李颖 | Method and device for rapidly extracting natural plant essential oil and hydrolat without solvents |
Non-Patent Citations (1)
| Title |
|---|
| 王锡宁，等: "茅苍术挥发油化学成分的分析研究", 《中国卫生检验杂志》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108048217A (en) * | 2017-12-13 | 2018-05-18 | 武汉轻工大学 | A kind of feverfew volatile oil high-efficiency device for extracting and method |
| CN109222213A (en) * | 2018-08-03 | 2019-01-18 | 云南瑞升烟草技术（集团）有限公司 | The green Extraction and enrichment and isolation and purification method of neophytadiene in a kind of tobacco material |
| CN109222213B (en) * | 2018-08-03 | 2021-08-20 | 云南瑞升烟草技术（集团）有限公司 | Green extraction, enrichment, separation and purification method of neophytadiene in tobacco raw material |
| CN110898030A (en) * | 2019-12-10 | 2020-03-24 | 苏州科技大学 | Method for extracting dandelion effective component composite targeting drug by ultraviolet illumination-ultrasound-microwave synergistic technology |
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Application publication date: 20161207 |