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Tea extract and industrial preparation method and application thereof

A tea extract and tea extraction technology, which are applied in the field of preparation technology of tea extract, can solve the problems of human health hazards, unsafe and environmental protection, low resource utilization rate, etc., and achieve high process safety factor, saving production costs and resources. High utilization effect

Pending Publication Date: 2020-01-10
SINPHAR TIAN LI PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although a relatively high content of catechins and EGCG components are prepared, a large amount of ethyl acetate and methanol are used in the process. It is neither safe nor environmentally friendly, and it is not green production. In addition, the yield of tea extract obtained in this process is low, resulting in low resource utilization, which increases costs and cannot meet the requirements of green production.

Method used

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  • Tea extract and industrial preparation method and application thereof
  • Tea extract and industrial preparation method and application thereof
  • Tea extract and industrial preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment 1

[0040] Take 100 kg of dry green tea (Duyun Maojian), add 1000 L of ethanol aqueous solution with a volume concentration of 20%, and extract for 30 minutes when the temperature is raised to 80° C. After extracting twice, combine the two extracts, cool to room temperature, and pass through a 60-mesh sieve. Concentrated to no alcohol.

[0041] The extract concentrate is loaded to No. 1 column chromatography equipped with polyamide resin at a flow rate of 1BV / h. After the sample is loaded, it is eluted with 2BV of purified water, and then eluted with 2BV of ethanol solution with a volume concentration of 80%. , the eluate was collected and concentrated until it was alcohol-free.

[0042] Load the concentrated solution of the No. 1 column chromatography eluate to No. 2 column chromatography equipped with LXD-200 resin, use 2BV of purified water for elution, and then use 2BV of 25% ethanol aqueous solution for elution, When the eluate was collected and concentrated at 50° C. when t...

preparation Embodiment 2

[0044] Take 100 kg of dry green tea (Xinyang Maojian), add 1000 L of ethanol aqueous solution with a volume concentration of 20%, and extract for 30 minutes when the temperature is raised to 70° C. After extracting 3 times, combine the three extracts, cool to room temperature, pass through an 80-mesh vibrating sieve, and concentrate to No alcohol.

[0045] The extract concentrate is loaded to No. 1 column chromatography equipped with polyamide resin at a flow rate of 1BV / h. After the sample is loaded, it is eluted with 2BV of purified water, and then eluted with 2BV of ethanol solution with a volume concentration of 75%. , the eluate was collected and concentrated until it was alcohol-free.

[0046] The concentrated solution of the No. 1 column chromatography eluate was loaded to the No. 2 column chromatography equipped with LXD-200 resin, and after elution was performed with 2BV of purified water, 2BV of ethanol aqueous solution with a volume concentration of 40% was used for...

preparation Embodiment 3

[0048] Take 100kg of dry green tea (Biluochun), add 1000L of ethanol aqueous solution with a volume concentration of 20%, and extract for 30 minutes when the temperature is raised to 90°C. After extracting twice, combine the two extracts, cool to room temperature, filter with plate and frame, and concentrate to no alcohol taste.

[0049] The extract concentrate is loaded to No. 1 column chromatography equipped with polyamide resin at a flow rate of 1BV / h. After the sample is loaded, it is eluted with 2BV of purified water, and then eluted with 2BV of ethanol aqueous solution with a volume concentration of 70%. , the eluate was collected and concentrated until it was alcohol-free.

[0050] The concentrated solution of the No. 1 column chromatography eluate was applied to the No. 2 column chromatography equipped with LXD-200 resin, and after elution was performed with 2BV of purified water, 2BV of ethanol aqueous solution with a volume concentration of 20% was used for elution. ...

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Abstract

The invention relates to a tea extract and an industrial preparation method and application thereof. In the tea extract, the content of total catechin is not lower than 85wt%, the content of epigallocatechin gallate is 65wt% or above, and the content of caffeine is not higher than 0.3%. The tea extract is obtained by extracting, purifying, concentrating and drying tea leaves, and the yield is increased by nearly 3 times compared with that of the conventional process. No any toxic organic solvent is used, so that the method is suitable for large-scale production. The prepared tea extract has good anti-haze and lung protection functions, and has a protection effect on nerve cells.

Description

technical field [0001] The invention relates to a product of tea extract, which has high content of chemical components of epigallocatechin gallate and total catechins. The invention also relates to a preparation process of the tea extract, which is obtained by extracting, purifying, concentrating and drying, and the extract can be used as food, health food or medicine. Background technique [0002] Tea has a long history of thousands of years in our country. Since ancient times, there has been a legend that "Shen Nong tasted a hundred herbs, encountered seventy-two poisons every day, and solved them with tea". It has become common knowledge that drinking tea is good for health. There are many varieties of tea in my country, among which green tea dominates, covers the widest range, and is also the most popular among the public. Tea polyphenols account for about 20-30% of the dry weight of green tea, and the main active ingredients are catechins. Catechins mainly include th...

Claims

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Application Information

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IPC IPC(8): A23F3/18A23F3/28A23F3/22A23F3/26A23F3/20A23L33/105A61K36/82A61P25/00A61P25/28A61P25/16A61P11/00A61K127/00
CPCA23F3/18A23F3/28A23F3/22A23F3/26A23F3/20A23L33/105A61K31/353A61K36/82A61P25/00A61P25/28A61P25/16A61P11/00A23V2002/00A61K2236/333A61K2236/39A61K2236/51A61K2236/55A23V2250/214A23V2200/30
Inventor 王昭日刘明川杨胜杰崔玉梅
Owner SINPHAR TIAN LI PHARMA
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