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Technical method for continuously extracting effective ingredients in tea seeds

A technology of tea seed and tea seed oil, which is applied in chemical instruments and methods, organic chemistry, preparation of sugar derivatives, etc., can solve the problems of low quality tea saponin, unsatisfactory application, and many operation steps, and achieve consumption saving , low cost, good quality effect

Inactive Publication Date: 2013-08-07
JISHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In terms of extracting the effective components of tea seeds, tea seed oil currently mainly adopts traditional solvent extraction, pressing and other processes, which have many operation steps, high energy consumption, darker oil color and low quality; the extraction of tea saponin is currently mainly performed by aqueous preparations. method and alcohol (methanol or ethanol) method, the quality of the tea saponin obtained is not high, the color is darker, and the purity is low, which cannot meet the needs of the application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Example 1: Continuous extraction of effective components of tea seed oil and tea saponin from tea seeds.

[0013] (1) Treatment of tea seeds, including drying and crushing of tea seeds. The tea seeds are dried to a water content of 7%, and then the tea seeds are crushed to 40 mesh.

[0014] (2) Extraction of tea seed oil and tea saponin. Put the treated tea seeds into the extraction kettle for supercritical carbon dioxide extraction. The extraction temperature is 38°C, the extraction pressure is 25Mpa, the separation temperature is 25°C, the flow rate is 15 L / h, and the extraction time is 7.1h. The resulting extract is tea seed oil. After the tea seed oil in the tea seeds is completely extracted, change the extraction pressure to 35Mpa and the extraction temperature to 45°C, add 50% ethanol twice as an entrainer, the mass ratio of the volume of the entrainer to the tea seeds is 4:1, and extract The time is 4 hours, the secondary extract is collected, concentrated und...

Embodiment 2

[0016] Example 2: Continuous extraction of effective components of tea seed oil and tea saponin from tea seeds.

[0017] (1) Treatment of tea seeds, including drying and crushing of tea seeds. The tea seeds are dried to a moisture content of 9%, and then the tea seeds are crushed to 20 meshes.

[0018] (2) Extraction of tea seed oil and tea saponin. Put the treated tea seeds into the extraction kettle for supercritical carbon dioxide extraction. The extraction temperature is 53°C, the extraction pressure is 16Mpa, the separation temperature is 28°C, the flow rate is 50 L / h, and the extraction time is 4.1h. The resulting extract is tea seed oil. After the tea seed oil in the tea seeds is completely extracted, change the extraction pressure to 22Mpa and the extraction temperature to 58°C, add 41% ethanol twice as an entrainer, the mass ratio of the volume of the entrainer to the tea seeds is 3:1, and extract The time is 6 hours, the secondary extract is collected, concentrate...

Embodiment 3

[0020] Example 3: Continuous extraction of effective components of tea seed oil and tea saponin from tea seeds.

[0021] (1) Treatment of tea seeds, including drying and crushing of tea seeds. The tea seeds are dried to a water content of 11.5%, and then the tea seeds are crushed to 60 mesh.

[0022] (2) Extraction of tea seed oil and tea saponin. Put the treated tea seeds into the extraction kettle for supercritical carbon dioxide extraction. The extraction temperature is 47°C, the extraction pressure is 29Mpa, the separation temperature is 18°C, the flow rate is 85 L / h, and the extraction time is 1.5h. The resulting extract is tea seed oil. After the tea seed oil in the tea seeds is extracted completely, change the extraction pressure to 29Mpa and the extraction temperature to 41°C, add 58% ethanol twice as an entrainer, the mass ratio of the entrainer volume to the tea seeds is 9:1, extract The time is 7.5 hours, the secondary extract is collected, concentrated under red...

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Abstract

The invention discloses a technical method for continuously extracting tea seed oil and saponin in tea seeds. The method comprises the following steps of: (1) tea seed treatment: drying and crushing the tea seeds; and (2) firstly, extracting the tea seed oil by using a supercritical CO2 extraction technology, then, changing the extraction temperature and pressure, adding a cosolvent, collecting secondary extracts, and separating and purifying the secondary extracts to obtain a saponin extract. All indexes of the tea seed oil obtained by using the method conform to the GB2716-2005 edible vegetable oil hygienic standard, and the mass percentage of the saponin in the saponin extract is 70-90%. The low-temperature, low-energy-consumption, green, efficient and continuous extraction of the effective ingredients in the tea seeds is realized through the effective integration of a macroporous resin absorption technology, an ultrasonic assistant extraction technology and a supercritical extraction technology; and the tea seed oil and the saponin extract are wide in purposes and market prospects.

Description

technical field [0001] The invention relates to a new method for continuously extracting effective components of tea seed oil and saponin from tea seeds. Background technique [0002] my country is the hometown of tea, and tea seed resources are extremely rich. In the past, most of them were left to rot, which is a pity. In fact, tea seeds are full of treasures, rich in oil, saponin, theophylline, tea polyphenols and other substances. Through comprehensive utilization, waste can be turned into treasure and the added value of tea seeds can be increased. [0003] The most valuable ingredients in tea seeds are tea seed oil and saponin. Tea seed oil is a kind of health-care edible oil, which has various functions such as lowering blood fat and anti-aging; saponin extracted from tea seeds is the A new type of multi-purpose industrial raw material has been developed. It uses tea saponin to develop and produce shower gel and laundry products. It has good emulsifying, dispersing an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07J63/00C11B1/10C07H1/08C11B1/04C07H15/256
CPCY02P20/54
Inventor 田宏现
Owner JISHOU UNIVERSITY
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