CN101935589A - Preparation method of crude menthol crystal used for producing peppermint oil - Google Patents
Preparation method of crude menthol crystal used for producing peppermint oil Download PDFInfo
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- CN101935589A CN101935589A CN 201010255585 CN201010255585A CN101935589A CN 101935589 A CN101935589 A CN 101935589A CN 201010255585 CN201010255585 CN 201010255585 CN 201010255585 A CN201010255585 A CN 201010255585A CN 101935589 A CN101935589 A CN 101935589A
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Abstract
The invention discloses a preparation method of crude menthol crystal used for producing peppermint oil, which comprises: feeding crude oil into a crystallizer for freezing out the crude oil by a saline water coil in the crystallizer, controlling the temperature of saline water to be -6+/-1 DEG C at the beginning, and refrigerating and cooling for 5 to 6 hours; when the crude oil begins to crystallize, keeping the temperature for 4 to 6 hours; and finishing the temperature keeping until the saline water is gradually cooled to -21+/-2 DEG C within 8 to 10 hours, cooling the oil to -2+/-2 DEG C finally, freezing out for 17 to 22 hours, discharging the water in the saline water coil completely at the end of the freeze out, introducing steam into the saline water coil and heating, wherein the molten liquid is the crude menthol crystal. The peppermint oil produced by using the crude menthol crystal prepared by the method is high in yield and quality.
Description
Technical field
The present invention relates to a kind of preparation of batch method, that be specifically related to is a kind of peppermint that is used to produce spearmint oil preparation method of cerebrol just.
Background technology
Peppermint just cerebrol is the batching that is used to prepare the peppermint crystal oil, and the content of its each chemical composition is directly connected to the quality of the spearmint oil of production.The content of mentha camphor is about 85%-90% in the general cerebrol just, if mentha camphor content is very low less than the 85% mentha camphor per unit area yield of bearing, if be higher than 90%, wherein other composition baking oil-contg in the crystal oil batching will reduce, baking oil has the effect of crystal seed, the mentha camphor per unit area yield of bearing still can be very low, so just the content of brain must be in certain scope.Different conditions has a significant impact the quality of the spearmint oil produced.
Summary of the invention
Goal of the invention: the objective of the invention is in order to solve the deficiencies in the prior art, disclose a kind of peppermint that is used to produce spearmint oil preparation method of cerebrol just, key is the control condition in the preparation process.
The technical solution used in the present invention: a kind of peppermint that is used to produce spearmint oil is the preparation method of cerebrol just, may further comprise the steps:
(1) crude oil is sent in the crystallizer, by crystallizer inner salt water coil crude oil is frozen and analyse operation, brine temp is controlled to be-6 ± 1 ℃ during beginning, and it is 5-6 hour that first frozen cooling needs the time;
(2) crude oil begins crystallization, needs insulation 4-6 hour;
(3) insulation end brine temp reduces gradually until-21 ± 2 ℃, temperature fall time is controlled to be 8-10 hour, the oil temperature is finally reduced to-2 ± 2 ℃, freeze that to analyse the entire operation time be 23-25 hour, freeze analyse end after, with logical inside steam heating after the emptying of salt solution coil pipe inner salt water, the liquid of thawing is exactly first cerebrol.
As optimization: in the step (1), freeze that brine temp is controlled to be-6 ℃ when analysing the operation beginning.
As optimization: in the step (3), insulation finishes brine temp and reduces gradually until-21 ℃, and temperature fall time is controlled to be 9 hours, and oily temperature finally is reduced to-2 ℃.
Beneficial effect: the present invention compared with prior art, its remarkable advantage is: the peppermint by the present invention preparation is the spearmint oil output height produced of cerebrol just, and quality is good.
Embodiment
The invention will be further described below in conjunction with specific embodiment:
Embodiment 1
(1) crude peppermint oil bu 180KG is sent in the crystallizer, by crystallizer inner salt water coil crude oil is frozen and analyse operation, brine temp is controlled to be-7 ℃ during beginning, and the frozen cooling time is 5 hours;
(2) crude oil begins crystallization, is incubated 4 hours;
(3) insulation end brine temp reduces gradually until-23 ℃, and temperature fall time is controlled to be 8 hours, and oily temperature is finally reduced to-4 ℃, freeze that to analyse the entire operation time be 23 hours, freeze analyse end after, will be after the emptying of salt solution coil pipe inner salt water logical inside steam heating, the liquid of thawing is first cerebrol sample 1.
Embodiment 2
(1) crude peppermint oil bu 180KG is sent in the crystallizer, by crystallizer inner salt water coil crude oil is frozen and analyse operation, brine temp is controlled to be-6 ℃ during beginning, and the frozen cooling time is 5.5 hours;
(2) crude oil begins crystallization, is incubated 5 hours;
(3) insulation end brine temp reduces gradually until-21 ℃, and temperature fall time is controlled to be 9 hours, and oily temperature is finally reduced to-2 ℃, freeze that to analyse the entire operation time be 24 hours, freeze analyse end after, will be after the emptying of salt solution coil pipe inner salt water logical inside steam heating, the liquid of thawing is first cerebrol sample 2.
Embodiment 3
(1) crude peppermint oil bu 180KG is sent in the crystallizer, by crystallizer inner salt water coil crude oil is frozen and analyse operation, brine temp is controlled to be-5 ℃ during beginning, and the frozen cooling time is 6 hours;
(2) crude oil begins crystallization, is incubated 6 hours;
(3) insulation end brine temp reduces gradually until-19 ℃, and temperature fall time is controlled to be 10 hours, and oily temperature is finally reduced to 0 ℃, freeze that to analyse the entire operation time be 25 hours, freeze analyse end after, will be after the emptying of salt solution coil pipe inner salt water logical inside steam heating, the liquid of thawing is first cerebrol sample 3.
Peppermint is the chemical constitution of cerebrol sample just:
| Chemical ingredients | Sample 1 | Sample 2 | Sample 3 |
| α-Pai Xi | 0.295 | 0.382 | 0.220 |
| Beta-pinene | 0.324 | 0.499 | 0.255 |
| Myrcene | 0.085 | 0.207 | 0.049 |
| Limonene | 0.615 | 0.789 | 0.486 |
| 1.8-cineole | 0.081 | 0.123 | 0.056 |
| Octanol-3 | 0.324 | 0.347 | 0.279 |
| Piperitone | 4.051 | 5.028 | 3.335 |
| Isomenthone | 1.175 | 1.866 | 0.927 |
| Menthyl acetate | 1.0 | 1.331 | 0.832 |
| Neomenthol | 1.018 | 1.335 | 0.841 |
| Caryophyllene | 0.468 | 0.537 | 0.333 |
| Mentha camphor | 88.678 | 85.356 | 90.763 |
| Pulegone | 0.593 | 0.663 | 0.680 |
| Piperitone | 0.632 | 0.535 | 0.426 |
Claims (3)
1. the first preparation method of cerebrol of a peppermint that is used to produce spearmint oil is characterized in that: may further comprise the steps:
(1) crude oil is sent in the crystallizer, by crystallizer inner salt water coil crude oil is frozen and analyse operation, brine temp is controlled to be-6 ± 1 ℃ during beginning, and the frozen cooling time is 5-6 hour;
(2) crude oil begins crystallization, is incubated 4-6 hour;
(3) insulation end brine temp reduces gradually until-21 ± 2 ℃, temperature fall time is controlled to be 8-10 hour, the oil temperature is finally reduced to-2 ± 2 ℃, freeze that to analyse the entire operation time be 17-22 hour, freeze analyse end after, with logical inside steam heating after the emptying of salt solution coil pipe inner salt water, the liquid of thawing is exactly first cerebrol.
2. the peppermint that is used to produce spearmint oil according to claim 1 is the preparation method of cerebrol just, it is characterized in that: in the step (1), freeze that brine temp is controlled to be-6 ℃ when analysing the operation beginning.
3. the peppermint that is used to produce spearmint oil according to claim 1 is the preparation method of cerebrol just, and it is characterized in that: in the step (3), insulation finishes brine temp and reduces gradually until-21 ℃, and temperature fall time is controlled to be 9 hours, and oily temperature finally is reduced to-2 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102555853A CN101935589B (en) | 2010-08-17 | 2010-08-17 | Preparation method of crude menthol crystal used for producing peppermint oil |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102555853A CN101935589B (en) | 2010-08-17 | 2010-08-17 | Preparation method of crude menthol crystal used for producing peppermint oil |
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| Publication Number | Publication Date |
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| CN101935589A true CN101935589A (en) | 2011-01-05 |
| CN101935589B CN101935589B (en) | 2012-09-26 |
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| CN2010102555853A Expired - Fee Related CN101935589B (en) | 2010-08-17 | 2010-08-17 | Preparation method of crude menthol crystal used for producing peppermint oil |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103232334A (en) * | 2013-04-28 | 2013-08-07 | 安徽银丰药业有限公司 | Production process for extracting menthone by vacuum rectifying method |
| CN104761566A (en) * | 2015-03-25 | 2015-07-08 | 昆明理工大学 | Method for crystallizing and purifying low-concentration eucalyptus oil |
| CN109679766A (en) * | 2018-12-05 | 2019-04-26 | 浙江绿晶香精有限公司 | Mint Essence |
-
2010
- 2010-08-17 CN CN2010102555853A patent/CN101935589B/en not_active Expired - Fee Related
Non-Patent Citations (4)
| Title |
|---|
| 《中国商检指南》 19900930 朱震元 等 天然香料 辽宁人民出版社 , 第1版 1 * |
| 《广西师范学院学报(自然科学版)》 20031231 庞承新 精馏_冷冻结晶技术分离天然薄荷脑的条件研究 61-63 第20卷, 第04期 2 * |
| 《牙膏工业》 20081231 陈为民等 薄荷脑(油)的检验标准与方法 17-18 , 第01期 2 * |
| 《香料化学与工艺学》 20040831 孙宝国 等 单离香料的生产 化学工业出版社化学与应用化学出版中心 , 第2版 1 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103232334A (en) * | 2013-04-28 | 2013-08-07 | 安徽银丰药业有限公司 | Production process for extracting menthone by vacuum rectifying method |
| CN103232334B (en) * | 2013-04-28 | 2015-12-09 | 安徽银丰药业有限公司 | A kind of production technique adopting rectification under vacuum method to extract piperitone |
| CN104761566A (en) * | 2015-03-25 | 2015-07-08 | 昆明理工大学 | Method for crystallizing and purifying low-concentration eucalyptus oil |
| CN104761566B (en) * | 2015-03-25 | 2017-03-01 | 昆明理工大学 | A kind of method of low concentration eucalyptus oil crystallization and purification |
| CN109679766A (en) * | 2018-12-05 | 2019-04-26 | 浙江绿晶香精有限公司 | Mint Essence |
| CN109679766B (en) * | 2018-12-05 | 2022-06-07 | 浙江绿晶生物科技股份有限公司 | Mint essence |
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| CN101935589B (en) | 2012-09-26 |
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Granted publication date: 20120926 Termination date: 20130817 |