CN107699348A - A kind of method of green tea essential oil extraction - Google Patents
A kind of method of green tea essential oil extraction Download PDFInfo
- Publication number
- CN107699348A CN107699348A CN201610646755.8A CN201610646755A CN107699348A CN 107699348 A CN107699348 A CN 107699348A CN 201610646755 A CN201610646755 A CN 201610646755A CN 107699348 A CN107699348 A CN 107699348A
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- CN
- China
- Prior art keywords
- green tea
- essential oil
- filtrate
- distillation
- oil extraction
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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
- 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
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Extraction Or Liquid Replacement (AREA)
- Medicines Containing Plant Substances (AREA)
- Tea And Coffee (AREA)
Abstract
The invention discloses a kind of method of green tea essential oil extraction, methods described comprises the following steps：1), fresh green tea is cleaned up, green tea drying, chopping, addition water are boiled 12 hours in pressure cooker, are filtrated to get the first filtrate and filter residue；2) filter residue of step 1, is added into water to boil in pressure cooker 12 hours, is filtrated to get the second filtrate；3), the first filtrate and the second filtrate are merged and are put into the reactor of distillation, is distilled, collects distillate；4), the reactor for slipping out liquid and being put into distillation is distilled again, obtains green tea essential oil；The method of the present invention is first cooked using pressure cooker, and the active ingredient of green tea is separated out, then extracts by second distillation to obtain essential oil, the inventive method is simple to operate, and extraction time is short, and cost is low, solvent is free of using water distillation extraction, the essential oil purity that the present invention extracts is high, no solvent residue.
Description
Technical field
A kind of plants essential oil extractive technique field of the present invention, and in particular to method of green tea essential oil extraction.
Background technology
Green tea is not fermented manufactured tea, remains the natural materials of fresh leaf, the Tea Polyphenols contained, catechin, Ye Lv
Element, caffeine, amino acid, vitamins and other nutritious components are also more.These natural nutrition compositions in green tea are to anti-aging, anti-
Cancer, anticancer, sterilization, anti-inflammatory etc. have special-effect, are less than other teas.Green tea is using suitable And Development of Tea Shoot as original
Material, through finishing, kneading, the tealeaves made of typical process process such as drying.Its dry tea color and luster and millet paste after brewing, tea residue are with green
Color is homophony, therefore named green tea.Green tea is will to pluck the fresh leaf come first through green removing in high temperature, has killed various oxidizing ferment, has maintained tea
Leaf green, then through kneading, dry and be made, clear soup greenery are the common features of green tea quality；The active ingredient of green tea is carried
Take, essential oil is made, the technique extracted at present is mainly extracted using organic solvent, or means of supercritical extraction, organic solvent extraction
Afterwards, organic solvent residual can cause the quality of green tea essential oil, and means of supercritical extraction cost is high.
The content of the invention
The purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art part, there is provided a kind of method of green tea essential oil extraction.
Technical scheme provided by the invention is：
A kind of method of green tea essential oil extraction, methods described comprise the following steps：
1), fresh green tea is cleaned up, green tea drying, chopping, addition water are boiled 1-2 hours in pressure cooker, filtered
Obtain the first filtrate and filter residue；
2) filter residue of step 1, is added into water 1-2 hours is boiled in pressure cooker, be filtrated to get the second filtrate；
3), the first filtrate and the second filtrate are merged and are put into the reactor of distillation, is distilled, collects distillate；
4), the reactor for slipping out liquid and being put into distillation is distilled again, obtains green tea essential oil.
Preferably, the water added in step 1) is 5 times of weights of green tea.
Preferably, the water added in step 2) is 2 times of weights of filter residue.
Preferably, the temperature that green tea cooks in step 1) is 100-120 DEG C.
Preferably, the temperature that filter residue cooks in step 2) is 100 DEG C.
Preferably, the temperature of distillation is 100-120 DEG C in step 3).
Preferably, the temperature of distillation is 100-110 DEG C in step 4).
The present invention comprises at least following beneficial effect：
The method of the present invention is first cooked using pressure cooker, and the active ingredient of green tea is separated out, then is extracted by second distillation
Essential oil is obtained, the inventive method is simple to operate, and extraction time is short, and cost is low, is free of solvent using water distillation extraction, the present invention carries
The essential oil purity taken is high, no solvent residue.
Further advantage, target and the feature of the present invention embodies part by following explanation, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Embodiment
With reference to the following example, the present invention is described in further detail, to make those skilled in the art with reference to specification
Word can be implemented according to this.
Embodiment 1
A kind of method of green tea essential oil extraction, methods described comprise the following steps：
1), fresh green tea is cleaned up, green tea drying, chopping, addition water are boiled 1-2 hours in pressure cooker, filtered
Obtain the first filtrate and filter residue；
2) filter residue of step 1, is added into water 1-2 hours is boiled in pressure cooker, be filtrated to get the second filtrate；
3), the first filtrate and the second filtrate are merged and are put into the reactor of distillation, is distilled, collects distillate；
4), the reactor for slipping out liquid and being put into distillation is distilled again, obtains green tea essential oil.
Embodiment 2
A kind of method of green tea essential oil extraction, methods described comprise the following steps：
1), fresh green tea is cleaned up, by green tea drying, chopping, adds 5 times of heavy water, in pressure cooker, temperature is
100 DEG C are boiled 1-2 hours, are filtrated to get the first filtrate and filter residue；
2) filter residue of step 1, is added into 2 times of heavy water in pressure cooker, temperature is 100 DEG C, boils 1-2 hours, filters
To the second filtrate；
3), the first filtrate and the second filtrate are merged and are put into the reactor of distillation, temperature is 100 DEG C and distilled, and receives
Collect distillate；
4) liquid, will be slipped out it is put into the temperature of reaction kettle of distillation and distilled again for 100 DEG C, obtains green tea essential oil.
Embodiment 3
A kind of method of green tea essential oil extraction, methods described comprise the following steps：
1), fresh green tea is cleaned up, by green tea drying, chopping, adds 5 times of heavy water, in pressure cooker, temperature is
120 DEG C are boiled 1-2 hours, are filtrated to get the first filtrate and filter residue；
2) filter residue of step 1, is added into 2 times of heavy water in pressure cooker, temperature is 100 DEG C, boils 1-2 hours, filters
To the second filtrate；
3), the first filtrate and the second filtrate are merged and are put into the reactor of distillation, temperature is 120 DEG C and distilled, and receives
Collect distillate；
4) liquid, will be slipped out it is put into the temperature of reaction kettle of distillation and distilled again for 110 DEG C, obtains green tea essential oil.
Although embodiment of the present invention is disclosed as above, it is not restricted in specification and embodiment listed
With it can be applied to various suitable the field of the invention completely, can be easily for those skilled in the art
Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, it is of the invention and unlimited
In specific details and shown here as the embodiment with description.
Claims (7)
- A kind of 1. method of green tea essential oil extraction, it is characterised in that methods described comprises the following steps：1), fresh green tea is cleaned up, green tea drying, chopping, addition water are boiled into 1-2 hours in pressure cooker, are filtrated to get First filtrate and filter residue；2) filter residue of step 1, is added into water 1-2 hours is boiled in pressure cooker, be filtrated to get the second filtrate；3), the first filtrate and the second filtrate are merged and are put into the reactor of distillation, is distilled, collects distillate；4), the reactor for slipping out liquid and being put into distillation is distilled again, obtains green tea essential oil.
- 2. the method for green tea essential oil extraction according to claim 1, it is characterized in that, the water added in step 1) is green tea 5 times of weights.
- 3. the method for green tea essential oil extraction according to claim 1, it is characterised in that the water added in step 2) is filter residue 2 times of weights.
- 4. the method for green tea essential oil extraction according to claim 1, it is characterised in that the temperature that green tea cooks in step 1) For 100-120 DEG C.
- 5. the method for green tea essential oil extraction according to claim 1, it is characterised in that the temperature that filter residue cooks in step 2) For 100 DEG C.
- 6. the method for green tea essential oil extraction according to claim 1, it is characterised in that the temperature of distillation is in step 3) 100-120℃。
- 7. the method for green tea essential oil extraction according to claim 1, it is characterised in that the temperature of distillation is in step 4) 100-110℃。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610646755.8A CN107699348A (en) | 2016-08-08 | 2016-08-08 | A kind of method of green tea essential oil extraction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610646755.8A CN107699348A (en) | 2016-08-08 | 2016-08-08 | A kind of method of green tea essential oil extraction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107699348A true CN107699348A (en) | 2018-02-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610646755.8A Pending CN107699348A (en) | 2016-08-08 | 2016-08-08 | A kind of method of green tea essential oil extraction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020182399A (en) * | 2019-05-07 | 2020-11-12 | 日研フード株式会社 | Green tea extract, method for producing the same, and methods for producing green tea extract powder using the same and producing instant green tea |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104004593A (en) * | 2014-06-10 | 2014-08-27 | 河源市石坪顶茶业发展有限公司 | Extraction method of green tea essential oil |
| CN104673497A (en) * | 2015-03-13 | 2015-06-03 | 中南林业科技大学 | Extraction technology of plant essential oil, polysaccharide and flavone |
| CN104770493A (en) * | 2015-03-27 | 2015-07-15 | 柳培健 | Tea aroma apricot kernel juice and preparation method thereof |
| CN105273844A (en) * | 2014-07-16 | 2016-01-27 | 刘振宇 | Plant essential oil extraction method |
-
2016
- 2016-08-08 CN CN201610646755.8A patent/CN107699348A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104004593A (en) * | 2014-06-10 | 2014-08-27 | 河源市石坪顶茶业发展有限公司 | Extraction method of green tea essential oil |
| CN105273844A (en) * | 2014-07-16 | 2016-01-27 | 刘振宇 | Plant essential oil extraction method |
| CN104673497A (en) * | 2015-03-13 | 2015-06-03 | 中南林业科技大学 | Extraction technology of plant essential oil, polysaccharide and flavone |
| CN104770493A (en) * | 2015-03-27 | 2015-07-15 | 柳培健 | Tea aroma apricot kernel juice and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 杨明: "《中药药剂学》", 31 July 2016, 中国中医药出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020182399A (en) * | 2019-05-07 | 2020-11-12 | 日研フード株式会社 | Green tea extract, method for producing the same, and methods for producing green tea extract powder using the same and producing instant green tea |
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