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Method for extracting Tie Guanyin tea seed oil via supercritical carbon dioxide fluid technology

A technology of carbon dioxide and Tieguanyin tea, which is applied in the direction of fat oil/fat production and fat generation, can solve the problems of high residual oil, solvent residue, and complicated post-treatment refining process, and achieves mild treatment process, no solvent residue, good Effects of use value and economic value

Inactive Publication Date: 2010-12-08
HUAQIAO UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention not only overcomes the defects of high residual oil, residual solvent, and complicated post-treatment and refining process in the traditional extraction technology, but also improves the use value and economic value of tea seed resources, and promotes the development of tea industry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A method for extracting Tieguanyin tea seed oil by supercritical carbon dioxide fluid technology, comprising the steps of:

[0021] 1) Pretreatment of Tieguanyin tea seeds; firstly, the by-product Tieguanyin tea seeds produced in the production and processing of Tieguanyin tea leaves are used as raw materials, which are dried → shelled → crushed.

[0022] 2) Adjustment and control of supercritical carbon dioxide fluid parameters; pass the carbon dioxide gas in the steel cylinder through the purifier Ⅰ, start the cold box refrigeration and cold cycle, the temperature of the cold box is 0°C, make it cool down into a liquid, and then pressurize it through a high-pressure pump , after passing through the mixer and purifier II, it is preheated by the heat exchanger and then enters the extraction kettle.

[0023] 3) Use supercritical carbon dioxide fluid to extract tea seed oil from Tieguanyin tea seeds. Put the weighed 200g Tieguanyin tea seeds into the extraction kettle, a...

Embodiment 2

[0032] A method for extracting Tieguanyin tea seed oil by supercritical carbon dioxide fluid technology, comprising the steps of:

[0033] 1) Pretreatment of Tieguanyin tea seeds; firstly, the by-product Tieguanyin tea seeds produced in the production and processing of Tieguanyin tea leaves are used as raw materials, which are dried → shelled → crushed.

[0034] 2) Adjustment and control of supercritical carbon dioxide fluid parameters; pass the carbon dioxide gas in the steel cylinder through the purifier Ⅰ, start the cold box refrigeration and cold cycle, the temperature of the cold box is 5°C, make it cool down into a liquid, and then pressurize it through a high-pressure pump , after passing through the mixer and purifier II, it is preheated by the heat exchanger and then enters the extraction kettle.

[0035] 3) Use supercritical carbon dioxide fluid to extract tea seed oil from Tieguanyin tea seeds. Put the weighed 300g Tieguanyin tea seeds into the extraction kettle, a...

Embodiment 3

[0044] A method for extracting Tieguanyin tea seed oil by supercritical carbon dioxide fluid technology, comprising the steps of:

[0045] 1) Pretreatment of Tieguanyin tea seeds; firstly, the by-product Tieguanyin tea seeds produced in the production and processing of Tieguanyin tea leaves are used as raw materials, which are dried → shelled → crushed.

[0046] 2) Adjustment and control of supercritical carbon dioxide fluid parameters; pass the carbon dioxide gas in the steel cylinder through the purifier Ⅰ, start the cold box refrigeration and cold cycle, the temperature of the cold box is 3°C, make it cool down into a liquid, and then pressurize it through a high-pressure pump , after passing through the mixer and purifier II, it is preheated by the heat exchanger and then enters the extraction kettle.

[0047] 3) Use supercritical carbon dioxide fluid to extract tea seed oil from Tieguanyin tea seeds. Put the weighed 250g Tieguanyin tea seeds into the extraction kettle, a...

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Abstract

The invention discloses a method for extracting Tie Guanyin tea seed oil via a supercritical carbon dioxide fluid technology, comprising the following steps of: 1) pre-processing the Tie Guanyin tea seeds; 2) adjusting and controlling the parameters of the supercritical carbon dioxide fluid; and 3) extracting the tea seed oil in the Tie Guanyin tea seeds by using the supercritical carbon dioxide fluid. The invention not only overcomes the defect that the traditional extraction technology has the defects of high residual oil, residual solvent and complicated post-processing and refining process, and the like, but also improves the use value and economic value of the tea seed resource and promotes the development of tea industry.

Description

technical field [0001] The present invention relates to a novel method for extracting tea seed oil. Specifically, it adopts an environment-friendly supercritical carbon dioxide fluid extraction technology, and uses Tieguanyin tea seeds, a by-product produced in the production and processing of Tieguanyin tea leaves, as raw materials for extraction and separation. Get high quality tea seed oil. Background technique [0002] Tieguanyin tea seeds are one of the most abundant by-products in the tea growth process. According to relevant reports, my country's annual output of tea seeds is about 125,000 tons. So far, most of Tieguanyin tea seeds have been burned or discarded as waste, which is undoubtedly a great waste of tea seed resources. According to literature, tea seed kernels contain tea seed oil, which accounts for 18% to 32% of the kernel weight. The physical and chemical properties of tea oil are very similar to olive oil, the best woody edible vegetable oil recognized ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/10
Inventor 陈爱政王士斌李莉刘源岗张庆生林志忠
Owner HUAQIAO UNIVERSITY
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