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High-pressure extraction method of effective ingredients in green tea

A technology for high-pressure extraction of active ingredients, applied in the field of high-pressure extraction of active ingredients in green tea, can solve problems such as environmental pollution and increase in production costs, and achieve the effects of reducing production costs and simplifying production processes

Inactive Publication Date: 2013-06-26
栾清杨
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this reduces the extraction temperature and reduces the loss of active ingredients, it brings a series of problems such as a substantial increase in production costs and environmental pollution.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] ① Green tea beverage production

[0020] Mix green tea and water at a weight ratio of 1:100, and extract the active ingredients according to the process mentioned in the technical proposal under the conditions of a pressure of 300MPa-500MPa and a holding time of 10-15 minutes. Green tea is filtered from the mixture of green tea and water discharged from the pressure vessel (aseptic process), and the filtrate is filled directly (aseptic process).

[0021] The method can use various drinking water (except tap water) such as lake water, river water, spring water and well water, and only needs to filter out impurities in the water without sterilizing treatment.

[0022] ② Extraction of tea polyphenols

[0023] Mix green tea (any variety, any grade, or fresh leaves) and water at a weight ratio of 1:20, under the conditions of pressure 300MPa-500MPa, holding time 10-15 minutes, make active ingredients according to the process mentioned in the technical plan extract. Strain...

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Abstract

The invention discloses a high-pressure extraction method of effective ingredients in green tea for effectively solving the problem of loss or degeneration of the effective ingredients of green tea caused by high processing temperature in the existing extracting technology. The method takes green tea as a material, and takes water or ethanol as a leaching solvent, and comprises the steps of carrying out high-pressure treatment under room temperature in a pressure container after mixing the material with the solvent, wherein the pressure is 300-500MPa, and the dwell time is 10-20 minutes; and filtering the green tea after releasing pressure, so as to obtain extracting solution of the effective ingredients of the green tea.

Description

[0001] technical field [0002] The invention relates to a high-pressure extraction method of active ingredients in green tea, which belongs to the high-pressure extraction method of green tea. technology field. Background technique [0003] Green tea is known as the "National Drink" in my country. Green tea refers to the fresh leaves of the tea tree, without fermentation, after typical processes such as killing, kneading, and drying, the color of the finished product, and the tea soup after brewing preserves the green main tone of fresh green tea. Green tea, due to its characteristics, determines that it retains more natural substances in fresh leaves. Among them, tea polyphenols and caffeine retain more than 85% of fresh leaves, chlorophyll retains about 50%, and vitamin loss is less, thus forming the characteristics of green tea "clear soup and green leaves, strong astringent taste". The most scientific research results show that the natural components retained in gre...

Claims

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Application Information

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IPC IPC(8): A23F3/18
Inventor 魏强王丹
Owner 栾清杨
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