CN111019753A - Extraction method of tea seed oil - Google Patents
Extraction method of tea seed oil Download PDFInfo
- Publication number
- CN111019753A CN111019753A CN201811175524.9A CN201811175524A CN111019753A CN 111019753 A CN111019753 A CN 111019753A CN 201811175524 A CN201811175524 A CN 201811175524A CN 111019753 A CN111019753 A CN 111019753A
- Authority
- CN
- China
- Prior art keywords
- tea seed
- seed oil
- separation
- mpa
- oil
- 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.)
- Pending
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Classifications
-
- 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
- C11B1/00—Production of fats or fatty oils from raw materials
- C11B1/02—Pretreatment
- C11B1/04—Pretreatment of vegetable raw material
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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
- C11B1/00—Production of fats or fatty oils from raw materials
- C11B1/10—Production of fats or fatty oils from raw materials by extracting
- C11B1/104—Production of fats or fatty oils from raw materials by extracting using super critical gases or vapours
-
- 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
- C11B1/00—Production of fats or fatty oils from raw materials
- C11B1/10—Production of fats or fatty oils from raw materials by extracting
- C11B1/108—Production of fats or fatty oils from raw materials by extracting after-treatment, e.g. of miscellae
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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)
- Fats And Perfumes (AREA)
Abstract
A method for extracting tea seed oil comprises pulverizing tea seed, and extracting with supercritical CO2 in supercritical CO2 extraction tank; and finally, separating the tea seed oil by two steps, wherein the tea seed oil is separated by supercritical CO2 extraction, so that the oil yield is high, and no other substances are added in the whole extraction process, so that the prepared tea seed oil contains no impurities or organic solvents, and the problems of low oil yield, high impurity content and organic solvent residue of an oil product in organic solvent extraction in the conventional squeezing method are solved.
Description
Technical Field
The invention belongs to the field of food processing, and particularly relates to a method for extracting tea seed oil.
Background
According to research, the oil content of the tea seeds is 75.75%, the content of unsaturated fatty acid is as high as 94.52%, particularly, the content of two human essential fatty acids, namely linoleic acid and α -linolenic acid, is 79.42%, wherein the content of linoleic acid is 39.92%, and the content of linolenic acid is 39.50%, so that the tea seeds are the only natural vegetable oil which is found to have the linoleic acid and linolenic acid contents which are so close to each other at present.
The prior art discloses a method for extracting tea seed oil by using an organic solvent, which has the technical defects that: firstly, the organic solvent residue in the product is a problem; secondly, the production cost is higher; thirdly, the unsaturated fatty acid is easy to be contacted with air in the extraction process, thereby influencing the product quality.
Disclosure of Invention
The invention aims to provide a tea seed oil extraction method which solves the problems of low oil yield and high impurity content in a squeezing method and organic solvent residue in an oil product in organic solvent extraction.
In order to achieve the purpose, the invention adopts the technical scheme that:
1) firstly, taking tea seeds and crushing the tea seeds to 50-60 meshes;
2) secondly, filling the crushed tea seeds into a supercritical CO2 extraction tank, heating to 38-45 ℃, pressurizing to 32-35 Mpa, opening a CO2 flow control valve, controlling the flow of CO2 at 24-27 kg/h, and extracting for 90-120 min under the condition;
3) finally, separation is carried out, the pressure of the separation kettle I is controlled to be 5 Mpa-6 Mpa, and the separation temperature is controlled to be 40 ℃ to 45 ℃; and then secondary separation is carried out, the pressure of the separation kettle II is controlled to be 2 Mpa-3 Mpa, and the separation temperature is controlled to be 35 ℃ to 40 ℃, so that the tea seed oil is separated. Under the condition, the yield of the tea seed oil is 16.5 percent
Because the supercritical CO2 extraction is adopted, the oil yield is high, and no other substances are added in the whole extraction process, the prepared tea seed oil contains no impurities and no organic solvent, thereby solving the problems of low oil yield, high impurity content and organic solvent residue of an oil product in the organic solvent extraction of the prior squeezing method.
Detailed Description
Firstly, 500 g of screened tea seeds are taken and crushed into 60 meshes; secondly, filling the crushed tea seeds into a supercritical CO2 extraction tank, heating to 40 ℃, pressurizing to 35Mpa, opening a CO2 flow control valve, controlling the flow of CO2 at 27 kg/h, and extracting for 120 minutes under the condition; finally, separation is carried out, the pressure of a separation kettle I is controlled to be 6Mpa, and the separation temperature is controlled to be 45 ℃; and then carrying out secondary separation, controlling the pressure of a separation kettle II at 3Mpa, and controlling the separation temperature at 40 ℃ to separate 82 g of tea seed oil.
Claims (1)
1. A method for extracting tea seed oil is characterized by comprising the following steps:
1) firstly, taking tea seeds and crushing the tea seeds to 50-60 meshes;
2) secondly, filling the crushed tea seeds into a supercritical CO2 extraction tank, heating to 38-45 ℃, pressurizing to 32-35 Mpa, opening a CO2 flow control valve, controlling the CO2 flow to be 24-27 kg/h, and extracting for 90-120 min under the condition;
3) finally, separation is carried out, the pressure of the separation kettle I is controlled to be 5 Mpa-6 Mpa, and the separation temperature is controlled to be 40 ℃ to 45 ℃; and then secondary separation is carried out, the pressure of the separation kettle II is controlled to be 2 Mpa-3 Mpa, and the separation temperature is controlled to be 35 ℃ to 40 ℃, so that the tea seed oil is separated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811175524.9A CN111019753A (en) | 2018-10-10 | 2018-10-10 | Extraction method of tea seed oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811175524.9A CN111019753A (en) | 2018-10-10 | 2018-10-10 | Extraction method of tea seed oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111019753A true CN111019753A (en) | 2020-04-17 |
Family
ID=70191566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811175524.9A Pending CN111019753A (en) | 2018-10-10 | 2018-10-10 | Extraction method of tea seed oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111019753A (en) |
-
2018
- 2018-10-10 CN CN201811175524.9A patent/CN111019753A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200417 |
|
| WD01 | Invention patent application deemed withdrawn after publication |