CN112280621A - Rosemary essential oil extraction process - Google Patents
Rosemary essential oil extraction process Download PDFInfo
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- CN112280621A CN112280621A CN202011306521.1A CN202011306521A CN112280621A CN 112280621 A CN112280621 A CN 112280621A CN 202011306521 A CN202011306521 A CN 202011306521A CN 112280621 A CN112280621 A CN 112280621A
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- essential oil
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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
- C11B9/027—Recovery of volatiles by distillation or stripping
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/48—Separation; Purification; Stabilisation; Use of additives
-
- 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
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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)
- Fats And Perfumes (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a process for extracting rosemary essential oil, relates to the technical field of rosemary essential oil, and aims to solve the problems that the existing method for extracting rosemary essential oil is various, and the purification degree is easily influenced by various factors. Step 1: processing rosemary raw materials; step 2: heating and distilling, namely putting the material raw materials to be extracted into a container filled with water, heating to boil, and distilling to obtain essential oil to be prepared; and step 3: condensing, and introducing cooling water to the outside of the condenser; and 4, step 4: collecting and separating to obtain oily essential oil on the upper part and pure dew on the lower part, and separating with a separator to obtain crude product; and 5: filtering the rosemary extract by an inorganic ceramic membrane device, removing impurities by using a distilled water washing column after the rosemary extract is adsorbed and saturated, eluting by using ethanol, recovering the solvent under reduced pressure, and drying in vacuum to obtain a high-purity rosmarinic acid product.
Description
Technical Field
The invention relates to the technical field of rosemary essential oil, in particular to a process for extracting rosemary essential oil.
Background
Rosemary essential oil is a colorless to yellowish volatile liquid. Rosemary is very beneficial to respiratory system, and can be used for treating respiratory system diseases such as common cold and bronchitis. The best known effect of rosemary is to improve memory, so that people can be conscious and have clear rules, and the rosemary is most suitable for examinees or people with excessive use of the brain. It also has effects of benefiting liver and gallbladder, removing toxic substance, and cleaning; rosemary may also be used by people with heart failure. The main stem of the rosemary is about 1 meter high, the leaf shape is linear, the length is about 1 meter, the rosemary is similar to a bent pine needle, the rosemary is dark green, the upper part is bright, the lower part is white, and the leaf margin is curled towards the leaf back; the rosemary essential oil is blue, grows in small clusters in axilla of leaves, and particularly invites bees. The essential oil content is 0.3-2%, the essential oil is obtained by a distillation method, the rosemary essential oil can strongly astringe, tighten and lose weight, resist crease and regulate the cortex, and the rosemary essential oil is mainly used for losing weight, shaping body, enlarging breast and beautifying body, can improve the disorder in the aspects of language, vision and hearing and can enhance the attention.
However, the existing rosemary essential oil extraction methods are various, and the purification degree is easily influenced by various factors; therefore, the existing requirements are not met, and a rosemary essential oil extraction process is provided for the rosemary essential oil extraction process.
Disclosure of Invention
The invention aims to provide a rosemary essential oil extraction process, which aims to solve the problems that the conventional rosemary essential oil extraction methods in the background art are various, and the purification degree is easily influenced by various factors.
In order to achieve the purpose, the invention provides the following technical scheme: a process for extracting rosemary essential oil comprises the following steps:
step 1: processing rosemary raw materials, namely cleaning the rosemary, washing off impurities and bad leaves remained on the surface of the rosemary, draining water for drying after cleaning, primarily draining the water, then entering a rosemary drying room, and drying by using an air energy heat pump dryer;
step 2: heating and distilling, namely putting the material raw materials to be extracted into a container filled with water, heating to boil, and distilling to obtain essential oil to be prepared;
and step 3: condensing, introducing cooling water outside the condenser, condensing the steam with essential oil in the distiller, collecting condensed water droplets containing essential oil, and standing to generate layering;
and 4, step 4: collecting and separating to obtain oily essential oil on the upper part and pure dew on the lower part, and separating with a separator to obtain crude product;
and 5: filtering the rosemary extract by an inorganic ceramic membrane device, passing through a macroporous resin adsorption column, washing the column with distilled water after adsorption saturation to remove impurities, eluting with ethanol, recovering the solvent under reduced pressure, and drying in vacuum to obtain a high-purity rosmarinic acid product.
Preferably, the step 1 comprises the following steps:
step 1-1: low-temperature heating and moisture removal are carried out at the initial stage, and the humidity is 55-65%;
step 1-2: slowly raising the temperature and reducing the humidity to 48-50%.
Preferably, in the step 2, the washed and dried rosemary is put into a distiller, 30 times of water is added, and steam is used for distilling and extracting for 5 hours.
Preferably, the purity is measured by a chromatograph after the filtration in the step 5.
Preferably, the filtrate in the step 5 passes through a macroporous resin adsorption column at the speed of 2BV/h, after adsorption saturation, the column is washed by distilled water to remove impurities, and then the column is eluted by 80% ethanol.
Preferably, the distillation treatment in the step 1 adopts a plate distillation method.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the rosemary essential oil extraction method, the distillation time is adjusted, the distillation and purification amount can be improved to the maximum extent, meanwhile, the separation pressure of the separator is adjusted, the overall extraction performance is more stable, the essential oil extraction is simpler, the operation is more convenient and more convenient, the trouble is saved, the purity is higher, and the problems that the existing rosemary essential oil extraction method is various and the purification degree is easily influenced by various factors are solved;
2. according to the invention, the rosemary raw material is cleaned and dried before the essential oil is extracted, so that the extraction cleanliness of the later stage can be improved to the greatest extent, and the raw material can be prevented from being too high in water content or too dry by drying 50%, so that the extraction of the later stage is in the most stable state.
Detailed Description
Example 1
A process for extracting rosemary essential oil comprises the following steps:
step 1: processing rosemary raw materials, namely cleaning the rosemary, washing off impurities and bad leaves remained on the surface of the rosemary, draining water for drying after cleaning, primarily draining the water, then entering a rosemary drying room, and drying by using an air energy heat pump dryer;
step 2: heating and distilling, namely putting the material raw materials to be extracted into a container filled with water, heating to boil, and distilling to obtain essential oil to be prepared;
and step 3: condensing, introducing cooling water outside the condenser, condensing the steam with essential oil in the distiller, collecting condensed water droplets containing essential oil, and standing to generate layering;
and 4, step 4: collecting and separating to obtain oily essential oil on the upper part and pure dew on the lower part, and separating with a separator to obtain crude product;
and 5: filtering the rosemary extract by an inorganic ceramic membrane device, passing through a macroporous resin adsorption column, washing the column with distilled water after adsorption saturation to remove impurities, eluting with ethanol, recovering the solvent under reduced pressure, and drying in vacuum to obtain a high-purity rosmarinic acid product.
Wherein the distillation time in step 2 is set to 2h, the separation pressure in step 4 is set to 20MPa, the distillation extraction amount is 0.679, and the separation extraction amount in step 4 is 5%.
Example 2
A process for extracting rosemary essential oil comprises the following steps:
step 1: processing rosemary raw materials, namely cleaning the rosemary, washing off impurities and bad leaves remained on the surface of the rosemary, draining water for drying after cleaning, primarily draining the water, then entering a rosemary drying room, and drying by using an air energy heat pump dryer;
step 2: heating and distilling, namely putting the material raw materials to be extracted into a container filled with water, heating to boil, and distilling to obtain essential oil to be prepared;
and step 3: condensing, introducing cooling water outside the condenser, condensing the steam with essential oil in the distiller, collecting condensed water droplets containing essential oil, and standing to generate layering;
and 4, step 4: collecting and separating to obtain oily essential oil on the upper part and pure dew on the lower part, and separating with a separator to obtain crude product;
and 5: filtering with inorganic ceramic membrane equipment, adsorbing with macroporous resin adsorption column, washing with distilled water to remove impurities, eluting with ethanol, recovering solvent under reduced pressure, and vacuum drying to obtain high-purity rosmarinic acid product
The distillation time was set to 4h and the pressure of the separation in step 4 was set to 25MPa, at which time the amount of distillate extracted was 1.247 and the amount of extract separated in step 4 was 6%.
Example 3
A process for extracting rosemary essential oil comprises the following steps:
step 1: processing rosemary raw materials, namely cleaning the rosemary, washing off impurities and bad leaves remained on the surface of the rosemary, draining water for drying after cleaning, primarily draining the water, then entering a rosemary drying room, and drying by using an air energy heat pump dryer;
step 2: heating and distilling, namely putting the material raw materials to be extracted into a container filled with water, heating to boil, and distilling to obtain essential oil to be prepared;
and step 3: condensing, introducing cooling water outside the condenser, condensing the steam with essential oil in the distiller, collecting condensed water droplets containing essential oil, and standing to generate layering;
and 4, step 4: collecting and separating to obtain oily essential oil on the upper part and pure dew on the lower part, and separating with a separator to obtain crude product;
and 5: filtering the rosemary extract by an inorganic ceramic membrane device, passing through a macroporous resin adsorption column, washing the column with distilled water after adsorption saturation to remove impurities, eluting with ethanol, recovering the solvent under reduced pressure, and drying in vacuum to obtain a high-purity rosmarinic acid product.
The distillation time was set to 5h and the pressure of the separation in step 4 was set to 30MPa, at which time the amount of distillate extracted was 1.279 and the amount of extract separated in step 4 was 5%.
It was concluded that the highest purification amount was obtained when the distillation time was set to 5h and the separation pressure was set to 25MPa for the highest separation and extraction amount.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (6)
1. An extraction process of rosemary essential oil is characterized by comprising the following steps: the method comprises the following steps:
step 1: processing rosemary raw materials, namely cleaning the rosemary, washing off impurities and bad leaves remained on the surface of the rosemary, draining water for drying after cleaning, primarily draining the water, then entering a rosemary drying room, and drying by using an air energy heat pump dryer;
step 2: heating and distilling, namely putting the material raw materials to be extracted into a container filled with water, heating to boil, and distilling to obtain essential oil to be prepared;
and step 3: condensing, introducing cooling water outside the condenser, condensing the steam with essential oil in the distiller, collecting condensed water droplets containing essential oil, and standing to generate layering;
and 4, step 4: collecting and separating to obtain oily essential oil on the upper part and pure dew on the lower part, and separating with a separator to obtain crude product;
and 5: filtering the rosemary extract by an inorganic ceramic membrane device, passing through a macroporous resin adsorption column, washing the column with distilled water after adsorption saturation to remove impurities, eluting with ethanol, recovering the solvent under reduced pressure, and drying in vacuum to obtain a high-purity rosmarinic acid product.
2. The process for extracting rosemary essential oil according to claim 1, wherein the process comprises the following steps: the step 1 comprises the following steps:
step 1-1: low-temperature heating and moisture removal are carried out at the initial stage, and the humidity is 55-65%;
step 1-2: slowly raising the temperature and reducing the humidity to 48-50%.
3. The process for extracting rosemary essential oil according to claim 1, wherein the process comprises the following steps: and 2, putting the cleaned and dried rosemary into a distiller, adding 30 times of water, and performing steam distillation for extraction for 5 hours.
4. The process for extracting rosemary essential oil according to claim 1, wherein the process comprises the following steps: the pressure equipment of the separator in the step 4 is 25 MPa.
5. The process for extracting rosemary essential oil according to claim 1, wherein the process comprises the following steps: and (3) enabling the filtrate obtained in the step (5) to pass through a macroporous resin adsorption column at the speed of 2BV/h, washing the column with distilled water after adsorption saturation to remove impurities, and eluting with 80% ethanol.
6. The process for extracting rosemary essential oil according to claim 1, wherein the process comprises the following steps: the distillation treatment in the step 1 adopts a plate distillation method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011306521.1A CN112280621A (en) | 2020-11-19 | 2020-11-19 | Rosemary essential oil extraction process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011306521.1A CN112280621A (en) | 2020-11-19 | 2020-11-19 | Rosemary essential oil extraction process |
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| CN112280621A true CN112280621A (en) | 2021-01-29 |
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| CN202011306521.1A Pending CN112280621A (en) | 2020-11-19 | 2020-11-19 | Rosemary essential oil extraction process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112980586A (en) * | 2021-04-08 | 2021-06-18 | 武汉黄鹤楼香精香料有限公司 | Purification method of pearl blasting essential oil |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108070453A (en) * | 2016-11-11 | 2018-05-25 | 长沙卫生物科技有限公司 | A kind of method that extraction separates Rosemary Oil, Rosmarinic acid, ursolic acid and carnosic acid from rosemary |
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2020
- 2020-11-19 CN CN202011306521.1A patent/CN112280621A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108070453A (en) * | 2016-11-11 | 2018-05-25 | 长沙卫生物科技有限公司 | A kind of method that extraction separates Rosemary Oil, Rosmarinic acid, ursolic acid and carnosic acid from rosemary |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112980586A (en) * | 2021-04-08 | 2021-06-18 | 武汉黄鹤楼香精香料有限公司 | Purification method of pearl blasting essential oil |
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Application publication date: 20210129 |