CN102311880A - Extraction method for extracting volatile oil from natural plant flowers - Google Patents
Extraction method for extracting volatile oil from natural plant flowers Download PDFInfo
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- CN102311880A CN102311880A CN 201110229384 CN201110229384A CN102311880A CN 102311880 A CN102311880 A CN 102311880A CN 201110229384 CN201110229384 CN 201110229384 CN 201110229384 A CN201110229384 A CN 201110229384A CN 102311880 A CN102311880 A CN 102311880A
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Abstract
The invention discloses an extraction method for extracting volatile oil from natural plant flowers. The method comprises the following steps: crushing dried plant flowers, putting the crushed plant flowers into an extraction kettle, carrying out extraction with mixed fluid of three parts of tetrafluoroethane and one part of ethanol as a solvent under subcritical technological conditions of a temperature of 35 to 40 DEG C and a pressure of 1.0 to 1.5 MPa, putting an extracted mixture into a separation pot, vaporizing tetrafluoroethane at a temperature of 40 to 50 DEG C under a pressure of 0.1 to 0.2 MPa so as to obtain a mixed product of ethanol and volatile oil, and vaporizing ethanol so as to obtain the product of volatile oil. The method provided in the invention has the advantages of high extraction efficiency, safe production, a little investment for equipment and low cost.
Description
Technical field
The present invention relates to a kind of extracting process that from natural plant flowers, extracts volatile oil.
Background technology
The process for extracting that from natural plant flowers, extracts volatile oil at present mainly is traditional extraction method, butane extraction process and supercritical CO
2Extraction process, not only extraction yield is low for wherein traditional extraction method, and the low and refining difficulty of quality product; The butane extraction process carries out industrial-scale production and has major safety risks because butane is inflammable and explosive; Supercritical CO
2Extraction process is owing under high pressure carry out, exist cost of investment big with the problem that is difficult to carry out commercial scale prodn, therefore how under the situation of low-cost and safety in production, extracting volatile oil in the high efficiency extraction natural plant flowers is present problem demanding prompt solution.
Summary of the invention
The object of the present invention is to provide a kind of percentage extraction height, production safety, equipment drops into the low extracting process that from natural plant flowers, extracts volatile oil.
This extracting process that from natural plant flowers, extracts volatile oil provided by the invention; It is characterized in that putting into extraction kettle after the pulverizing of exsiccant plant flowers; With three parts of Tetrafluoroethanes and a alcoholic acid mixed stream is solvent; In temperature is 35-40 ℃, and pressure is to extract under the subcritical processing condition of 1.0-1.5MPa, will extract mixture then and put into separating still.At temperature 40-50 ℃, pressure is under the 0.1-0.2MPa, makes the Tetrafluoroethane gasification, obtains the mix products of ethanol and volatile oil, and ethanol is removed in evaporation, obtains the volatile oil product.
The inventive method since be with a kind ofly do not fire, quick-fried, not nontoxic Tetrafluoroethane fluid is solvent; Ethanol is entrainment agent; Whole extraction process all carries out under lesser temps and lower pressure; So just strengthened the dissolving power of solvent, thereby improved percentage extraction greatly, made yld greater than 90% to volatile oil in the plant flowers.Low-pressure low-temperature can also reduce investment of devices greatly, has improved production security simultaneously.
Embodiment
Embodiment one:
100 kilograms of exsiccant (moisture is less than 8%) plant flowers was pulverized 20 mesh sieves, put into extraction kettle, and fed according to the weight ratio of plant flowers: solvent=1:1 and extract with three parts of Tetrafluoroethanes and a ethanol synthetic mixed stream; Alcohol concn is more than 95%, and extraction temperature is 35-40 ℃, and pressure is 1.0-1.5MPa continuous extraction three times; Each extraction time is 60 minutes; The total solvent consumption is plant flowers: solvent=1:3, then the mixture of extraction is put into separating still, and regulating pressure is 0.1-0.2MPa; Temperature 40-50 ℃; Make the Tetrafluoroethane gasification, thereby isolate volatile oil and alcoholic acid mixture, the Tetrafluoroethane after the gasification reclaims circulation and re-uses through compressor pressurizes, cooling; Volatile oil and alcoholic acid mix products 40 ℃ of down evaporations, are isolated ethanol through vacuum concentration, obtain the volatile oil product, and yield is greater than 90%, isolated ethanol recycling use.
Claims (3)
1. an extracting process that from natural plant flowers, extracts volatile oil is characterized in that being solvent with putting into extraction kettle after the pulverizing of exsiccant plant flowers with three parts of Tetrafluoroethanes and a alcoholic acid mixed stream; In temperature is 35-40 ℃, and pressure is to extract under the subcritical processing condition of 1.0-1.5MPa, will extract mixture then and put into separating still; At temperature 40-50 ℃; Pressure is under the 0.1-0.2MPa, makes the Tetrafluoroethane gasification, obtains the mix products of ethanol and volatile oil; Ethanol is removed in evaporation, obtains the volatile oil product.
2. the extracting process that from natural plant flowers, extracts volatile oil according to claim 1 is characterized in that with plant flowers: the weight ratio extraction of total solvent=1:3 three times extracted 60 minutes at every turn.
3. the extracting process that from natural plant flowers, extracts volatile oil according to claim 1 and 2 is characterized in that plant flowers pulverized 20 mesh sieves.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110229384 CN102311880A (en) | 2011-08-11 | 2011-08-11 | Extraction method for extracting volatile oil from natural plant flowers |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110229384 CN102311880A (en) | 2011-08-11 | 2011-08-11 | Extraction method for extracting volatile oil from natural plant flowers |
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| CN102311880A true CN102311880A (en) | 2012-01-11 |
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| CN 201110229384 Pending CN102311880A (en) | 2011-08-11 | 2011-08-11 | Extraction method for extracting volatile oil from natural plant flowers |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103937613A (en) * | 2014-04-24 | 2014-07-23 | 福建农林大学 | Method for sub-critically extracting jasmine flower head fragrance essential oil |
| CN105482897A (en) * | 2016-01-27 | 2016-04-13 | 江苏耐雀生物工程技术有限公司 | Microwave-assisted subcritical essential oil extracting method |
| CN107980819A (en) * | 2018-01-15 | 2018-05-04 | 中鸿纳米纤维技术丹阳有限公司 | A kind of pure natural nanoscale thimerosal |
| CN108124915A (en) * | 2018-01-15 | 2018-06-08 | 中鸿纳米纤维技术丹阳有限公司 | A kind of nanometer concentrated essence liquid of potent antibacterial |
| CN108707511A (en) * | 2018-05-30 | 2018-10-26 | 郑州雪麦龙食品香料有限公司 | A kind of extraction process of citronella oil |
| CN109985417A (en) * | 2019-04-19 | 2019-07-09 | 上海纯元萃生物科技有限公司 | A kind of draft low-temperature extraction technique and its pet toothpaste of preparation |
| CN112175734A (en) * | 2020-08-21 | 2021-01-05 | 赤水芝绿金钗石斛生态园开发有限公司 | Method for extracting dendrobium nobile flower essential oil |
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| CN1673324A (en) * | 2005-04-18 | 2005-09-28 | 宋开泉 | Extraction method of jasmine flower absolute oil |
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| CN101624557A (en) * | 2009-07-31 | 2010-01-13 | 重庆市日用化学工业研究所 | Method for extracting neroli absolute by supercritical carbon dioxide |
| CN101812370A (en) * | 2010-03-29 | 2010-08-25 | 甘肃省轻工研究院 | Method and device for extracting peony seed oil from peony seeds |
| CN102071098A (en) * | 2009-11-25 | 2011-05-25 | 曹庸 | Method for extracting camellia oil through subcritical fluid extraction technology |
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2011
- 2011-08-11 CN CN 201110229384 patent/CN102311880A/en active Pending
Patent Citations (5)
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| CN1673324A (en) * | 2005-04-18 | 2005-09-28 | 宋开泉 | Extraction method of jasmine flower absolute oil |
| CN101161324A (en) * | 2006-10-11 | 2008-04-16 | 韩延欣 | Sub-critical fluid extraction solvent and abstraction method |
| CN101624557A (en) * | 2009-07-31 | 2010-01-13 | 重庆市日用化学工业研究所 | Method for extracting neroli absolute by supercritical carbon dioxide |
| CN102071098A (en) * | 2009-11-25 | 2011-05-25 | 曹庸 | Method for extracting camellia oil through subcritical fluid extraction technology |
| CN101812370A (en) * | 2010-03-29 | 2010-08-25 | 甘肃省轻工研究院 | Method and device for extracting peony seed oil from peony seeds |
Non-Patent Citations (1)
| Title |
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| 《福建化工》 20031231 郭可勇等 超亚临界态CO2 萃取除虫菊酯浸膏的研究 , 第2期 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103937613A (en) * | 2014-04-24 | 2014-07-23 | 福建农林大学 | Method for sub-critically extracting jasmine flower head fragrance essential oil |
| CN105482897A (en) * | 2016-01-27 | 2016-04-13 | 江苏耐雀生物工程技术有限公司 | Microwave-assisted subcritical essential oil extracting method |
| CN107980819A (en) * | 2018-01-15 | 2018-05-04 | 中鸿纳米纤维技术丹阳有限公司 | A kind of pure natural nanoscale thimerosal |
| CN108124915A (en) * | 2018-01-15 | 2018-06-08 | 中鸿纳米纤维技术丹阳有限公司 | A kind of nanometer concentrated essence liquid of potent antibacterial |
| CN108707511A (en) * | 2018-05-30 | 2018-10-26 | 郑州雪麦龙食品香料有限公司 | A kind of extraction process of citronella oil |
| CN109985417A (en) * | 2019-04-19 | 2019-07-09 | 上海纯元萃生物科技有限公司 | A kind of draft low-temperature extraction technique and its pet toothpaste of preparation |
| CN112175734A (en) * | 2020-08-21 | 2021-01-05 | 赤水芝绿金钗石斛生态园开发有限公司 | Method for extracting dendrobium nobile flower essential oil |
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Application publication date: 20120111 |