CN101205504A - Method for extracting persimmon leaf essential oil from persimmon leaves - Google Patents
Method for extracting persimmon leaf essential oil from persimmon leaves Download PDFInfo
- Publication number
- CN101205504A CN101205504A CNA2007101686920A CN200710168692A CN101205504A CN 101205504 A CN101205504 A CN 101205504A CN A2007101686920 A CNA2007101686920 A CN A2007101686920A CN 200710168692 A CN200710168692 A CN 200710168692A CN 101205504 A CN101205504 A CN 101205504A
- Authority
- CN
- China
- Prior art keywords
- persimmon leaf
- persimmon
- essential oil
- extracting
- steam distillation
- Prior art date
- 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.)
- Granted
Links
Abstract
The invention relates to a method extracting persimmon leaf essence oil from persimmon leaves. The differences are that: at first, the persimmon leaves dried in shade are crushed and then sieved through a 40-mesh screen, then the hydrophilic ion liquid is added, the mass volume ratio of the persimmon leaves and the hydrophilic ion liquid is 1: 2-20 (g:ml), then the microwave is adopted to heat the persimmon leaves until that the persimmon leaves are completely dissolved, the frequency of the microwave is 2450MHz, then the routine steam distillation method is adopted to obtain the persimmon leaf essence oil, the heating temperature of the microwave is between 80 and 120 DEG C, the hydrophilic ion liquid is any one of [BMIM]AcO, [BMIM]Cl or [AMIM]Cl. The invention has the advantages that: 1) the invention has simple preparation method, good persimmon leaf essence oil quality and higher yield which is 20 to 40 percent higher than the yield directly adopting the steam distillation method; 2) the hydrophilic ion liquid adopts the ion exchange method to reclaim and reuse, can not lead to environmental pollution.
Description
Technical field
The present invention relates to a kind of method of from the persimmon leaf, extracting the persimmon leaf essential oil.
Background technology
Persimmon in China as cultivation of fruit tree, distributed more widely.For a long time, persimmon leaf resource fails to obtain development and utilization well, and extracting the persimmon leaf essential oil by the persimmon leaf is a kind of effective way of persimmon leaf recycling.The persimmon leaf essential oil is a kind of lurid oily liquids with light persimmon fragrance, is widely used in food and drink industry.Extract the persimmon leaf essential oil by the persimmon leaf at present and mainly adopt steam distillation, organic solvent extractionprocess and supercritical extraction, wherein steam distillation is most widely used, and it is good that it obtains persimmon leaf essential oil quality, but yield is lower.
Hydrophilic ionic liquid is a collection of organic liquid material of at room temperature being made up of ion fully, than organic solvent commonly used, because it is non-volatile, can recycle, and is considered to green solvent.Do not see at present that hydrophilic ionic liquid is used for being extracted by the persimmon leaf report of persimmon leaf essential oil.
Summary of the invention
Problem to be solved by this invention is to propose a kind of method of extracting the persimmon leaf essential oil from the persimmon leaf at above-mentioned prior art, and persimmon leaf essential oil quality obtained by this method is good, and the essential oil productive rate is significantly improved.
The present invention for the solution that problem adopts of the above-mentioned proposition of solution is: a kind of method of extracting the persimmon leaf essential oil from the persimmon leaf, its difference is that the persimmon leaf that at first will dry in the shade pulverizes, pulverize the back and cross 40 mesh sieves, then to wherein adding hydrophilic ionic liquid, described persimmon leaf and hydrophilic ion liquid mass volume ratio are 1: 2-20 (g: ml), adopt microwave heating to persimmon leaf to dissolve fully again, described microwave frequency 2450MHz adopts conventional steam distillation to extract then and obtains the persimmon leaf essential oil.
Press such scheme, described microwave heating temperature is 80～120 ℃.
Press such scheme, described hydrophilic ionic liquid is [BMIM] AcO, any one among [BMIM] Cl or [AMIM] Cl.
Advantage of the present invention:
1) preparation method is simple, and it is good to obtain persimmon leaf essential oil quality, and yield is higher, and is higher by about 20～40% than the productive rate of direct employing steam distillation;
2) adopt hydrophilic ionic liquid can adopt the ion exchange method recycling use, can not cause environmental pollution substantially.
Embodiment
Embodiment 1:
The persimmon leaf that 20g dries in the shade is pulverized, pulverize the back and cross 40 mesh sieves, then to wherein adding the hydrophilic ionic liquid of 100ml [BMIM] AcO, adopt microwave heating (Heating temperature is 120 ℃) to persimmon leaf to dissolve fully again, described microwave frequency 2450MHz, adopting conventional steam distillation to extract then and obtaining lurid oily liquids is persimmon leaf essential oil 366mg, and adopt conventional steam distillation to get lurid oily liquids 264mg, productive rate improves 38.63%, both relative densities, refractive index is consistent with the UV absorption peak.
Embodiment 2:
The persimmon leaf that 20g dries in the shade is pulverized, pulverize the back and cross 40 mesh sieves, then to wherein adding the hydrophilic ionic liquid of 150ml [BMIM] Cl, adopt microwave heating (Heating temperature is 100 ℃) to persimmon leaf to dissolve fully again, described microwave frequency 2450MHz, adopting conventional steam distillation to extract then and obtaining lurid oily liquids is persimmon leaf essential oil 324mg, and adopt conventional steam distillation to get lurid oily liquids 264mg, productive rate improves 22.7%, both relative densities, refractive index is consistent with the UV absorption peak.
Embodiment 3:
The persimmon leaf that 20g dries in the shade is pulverized, pulverize the back and cross 40 mesh sieves, then to wherein adding the hydrophilic ionic liquid of 120ml [AMIM] Cl, adopt microwave heating (Heating temperature is 80 ℃) to persimmon leaf to dissolve fully again, described microwave frequency 2450MHz, adopting conventional steam distillation to extract then and obtaining lurid oily liquids is persimmon leaf essential oil 331mg, and adopt conventional steam distillation to get lurid oily liquids 264mg, productive rate improves 25.4%, both relative densities, refractive index is consistent with the UV absorption peak.
Embodiment 4:
The persimmon leaf that 20g dries in the shade is pulverized, pulverize the back and cross 40 mesh sieves, then to wherein adding the hydrophilic ionic liquid of 100ml [BMIM] AcO, adopt microwave heating (Heating temperature is 80 ℃) to persimmon leaf to dissolve fully again, described microwave frequency 2450MHz, adopting conventional steam distillation to extract then and obtaining lurid oily liquids is persimmon leaf essential oil 358mg, and adopt conventional steam distillation to get lurid oily liquids 264mg, productive rate improves 35.6%, both relative densities, refractive index is consistent with the UV absorption peak.
Embodiment 5:
The persimmon leaf that 20g dries in the shade is pulverized, pulverize the back and cross 40 mesh sieves, then to wherein adding the hydrophilic ionic liquid of 40ml [BMIM] Cl, adopt microwave heating (Heating temperature is 105 ℃) to persimmon leaf to dissolve fully again, described microwave frequency 2450MHz, adopting conventional steam distillation to extract then and obtaining lurid oily liquids is persimmon leaf essential oil 340mg, and adopt conventional steam distillation to get lurid oily liquids 264mg, productive rate improves 28.8%, both relative densities, refractive index is consistent with the UV absorption peak.
Embodiment 6:
The persimmon leaf that 20g dries in the shade is pulverized, pulverize the back and cross 40 mesh sieves, then to wherein adding the hydrophilic ionic liquid of 400ml [BMIM] AcO, adopt microwave heating (Heating temperature is 100 ℃) to persimmon leaf to dissolve fully again, described microwave frequency 2450MHz, adopting conventional steam distillation to extract then and obtaining lurid oily liquids is persimmon leaf essential oil 360mg, and adopt conventional steam distillation to get lurid oily liquids 264mg, productive rate improves 36.4%, both relative densities, refractive index is consistent with the UV absorption peak.
The hydrophilic ionic liquid that the foregoing description 1-6 is adopted all adopts industry or laboratory chemical reagent, and its weight percent concentration is more than 95%.
Claims (3)
1. method of from the persimmon leaf, extracting the persimmon leaf essential oil, it is characterized in that the persimmon leaf that at first will dry in the shade pulverizes, pulverize the back and cross 40 mesh sieves, then to wherein adding hydrophilic ionic liquid, described persimmon leaf and hydrophilic ion liquid mass volume ratio are 1: 2-20 (g: ml), adopt microwave heating to persimmon leaf to dissolve fully again, described microwave frequency 2450MHz adopts conventional steam distillation to extract then and obtains the persimmon leaf essential oil.
2. by the described method of from the persimmon leaf, extracting the persimmon leaf essential oil of claim 1, it is characterized in that described microwave heating temperature is 80～120 ℃.
3. by claim 1 or the 2 described methods of from the persimmon leaf, extracting the persimmon leaf essential oil, it is characterized in that described hydrophilic ionic liquid is [BMIM] AcO, any one among [BMIM] Cl or [AMIM] Cl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101686920A CN101205504B (en) | 2007-12-10 | 2007-12-10 | Method for extracting persimmon leaf essential oil from persimmon leaves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101686920A CN101205504B (en) | 2007-12-10 | 2007-12-10 | Method for extracting persimmon leaf essential oil from persimmon leaves |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101205504A true CN101205504A (en) | 2008-06-25 |
| CN101205504B CN101205504B (en) | 2010-12-08 |
Family
ID=39565987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101686920A Expired - Fee Related CN101205504B (en) | 2007-12-10 | 2007-12-10 | Method for extracting persimmon leaf essential oil from persimmon leaves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101205504B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101880597A (en) * | 2010-07-08 | 2010-11-10 | 河北科技大学 | Method for extracting rice bran oil by using ionic liquid and supercritical carbon dioxide (CO2) |
| CN103620011A (en) * | 2011-06-28 | 2014-03-05 | 奇华顿股份有限公司 | Ionic liquids for agricultural residue removal |
| CN104232311A (en) * | 2014-09-02 | 2014-12-24 | 华南理工大学 | Extraction method of ginger essential oil |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301321C (en) * | 2004-07-02 | 2007-02-21 | 西北工业大学 | Method for extracting natural perfume from persimmon leaf or bark |
-
2007
- 2007-12-10 CN CN2007101686920A patent/CN101205504B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101880597A (en) * | 2010-07-08 | 2010-11-10 | 河北科技大学 | Method for extracting rice bran oil by using ionic liquid and supercritical carbon dioxide (CO2) |
| CN103620011A (en) * | 2011-06-28 | 2014-03-05 | 奇华顿股份有限公司 | Ionic liquids for agricultural residue removal |
| US8791282B2 (en) | 2011-06-28 | 2014-07-29 | Givudan S.A. | Ionic liquids for agricultural residue removal |
| CN104232311A (en) * | 2014-09-02 | 2014-12-24 | 华南理工大学 | Extraction method of ginger essential oil |
| CN104232311B (en) * | 2014-09-02 | 2016-09-21 | 华南理工大学 | A kind of extracting method of ginger essential oil |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101205504B (en) | 2010-12-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101195789B (en) | Method for extracting pomelo ped essential oil from pomelo ped | |
| Ha et al. | Microwave-assisted pretreatment of cellulose in ionic liquid for accelerated enzymatic hydrolysis | |
| CN103711017B (en) | A kind ofly prepare the method for cellulose and lignin as solvent normal pressure ultrasonic wave is auxiliary taking the height alcohol that boils | |
| Zhang et al. | Preparation and characterization of sodium carboxymethyl cellulose from cotton stalk using microwave heating | |
| US8110677B2 (en) | Microwave-assisted extraction of polysaccharide from Artemisia sphaerocephala | |
| CN101191103B (en) | Method for extracting pine needle essential oil from pine needle | |
| CN105484083A (en) | Green separating process for components of lignocellulose | |
| Xin et al. | Extraction of lignins from aqueous–ionic liquid mixtures by organic solvents | |
| CN103088692A (en) | Method for selectively separating lignin and cellulose from lignocellulose biomasses | |
| CN107840783B (en) | Method for catalytic depolymerization of biomass by molybdenum oxide catalyst | |
| Kininge et al. | Intensification of alkaline delignification of sugarcane bagasse using ultrasound assisted approach | |
| CN102864672A (en) | Method for extracting lignin | |
| CN102659898A (en) | Microwave-assisted method for extracting tea saponin | |
| CN101205504B (en) | Method for extracting persimmon leaf essential oil from persimmon leaves | |
| CN104761554B (en) | A kind of preparation method and applications of ionic compound solution | |
| Mao et al. | Lignin recovery from cocoa bean shell using microwave-assisted extraction and deep eutectic solvents | |
| CN104403110A (en) | Method for extracting lignin in biomass material by using ion liquid | |
| CN106702800A (en) | Method for removing straw lignin and hemicellulose by using protic ionic liquid | |
| CN106866381A (en) | A kind of method that high-efficiency low-pollution prepares mao bamboon lignin single phenolic compounds | |
| CN107213203A (en) | A kind of method that total polyphenols are extracted from Guava Leaf | |
| CN106750360A (en) | A kind of method of the reverse solution system separating lignin of utilization alkali ionic liquid | |
| EP3502118A1 (en) | Ultra-fast lignin depolymerization process | |
| CN101597214A (en) | A kind of method that extracts trans-resveratrol in the peanut root | |
| CN101323632A (en) | Microwave radiation preparation of acetic acid lignin | |
| CN103949223A (en) | Preparation method of adsorbent used for removing fermentation inhibitor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101208 Termination date: 20141210 |
|
| EXPY | Termination of patent right or utility model |