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Physical extraction method of tea pigment by taking aged tea as raw material

An extraction method and a technology for tea pigments are applied in the field of physical extraction of tea pigments using cooked tea as a raw material, which can solve the problems of many impurities, high labor intensity and high production cost, achieve simple process flow, improve extraction rate and high safety. Effect

Inactive Publication Date: 2020-07-31
浙江中禄松波生物工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the traditional leaching method, there are disadvantages such as long leaching time, high labor intensity, high energy consumption for raw material pretreatment, and easy damage of heat-sensitive components.
The traditional extraction method of tea pigment in tea leaves is commonly used by boiling water decoction. This method has a high heating temperature, which will cause the polyphenols in the tea pigment to polymerize and deepen the color; while the organic solvent extraction method uses ethanol aqueous solution to extract the tea pigment, and the extraction rate is improved. The production cost is relatively high, and there are many impurities

Method used

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  • Physical extraction method of tea pigment by taking aged tea as raw material

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Effect test

Embodiment 1

[0025] A kind of physical extraction method using cooked tea as raw material tea pigment according to the present invention comprises the following steps:

[0026] Step 1, tea selection: choose fresh organic green tea leaves with one bud and one leaf or one bud and two leaves, remove the old leaves, wash with fresh water, remove impurities and dust on the leaves, and place them in a cool place to dry naturally for later use;

[0027] Step 2, tea maturation: select 1000g of dried tea leaves and add them to the de-greening machine for three times, then transfer them to the fine twister for reciprocating kneading, until the tea leaves are curled into strips, take them out of the fine-kneader, and let them dry naturally Put it in the fermentation box for 1 day of fermentation, then put it in the refrigerator for refrigerated aging for 15 days, then transfer it to the freezer for quick freezing, and set aside;

[0028] Among them, after each finish, it needs to be cooled before the...

Embodiment 2

[0036] A kind of physical extraction method using cooked tea as raw material tea pigment according to the present invention comprises the following steps:

[0037] Step 1, tea selection: choose fresh organic green tea leaves with one bud and one leaf or one bud and two leaves, remove the old leaves, wash with fresh water, remove impurities and dust on the leaves, and place them in a cool place to dry naturally for later use;

[0038] Step 2, tea maturation: select 1000g of dried tea leaves and add them to the de-greening machine for three times, then transfer them to the fine twister for reciprocating kneading, until the tea leaves are curled into strips, take them out of the fine-kneader, and let them dry naturally Put it in the fermentation box for 1.5 days of fermentation, then put it in the refrigerator for refrigerating and aging for 17 days, then transfer it to the freezer for quick freezing, and set aside;

[0039] Among them, after each finish, it needs to be cooled be...

Embodiment 3

[0047] A kind of physical extraction method using cooked tea as raw material tea pigment according to the present invention comprises the following steps:

[0048] Step 1, tea selection: choose fresh organic green tea leaves with one bud and one leaf or one bud and two leaves, remove the old leaves, wash with fresh water, remove impurities and dust on the leaves, and place them in a cool place to dry naturally for later use;

[0049] Step 2, tea maturation: select 1000g of dried tea leaves and add them to the de-greening machine for three times, then transfer them to the fine twister for reciprocating kneading, until the tea leaves are curled into strips, take them out of the fine-kneader, and let them dry naturally Put it in the fermentation box for 2 days of fermentation, then put it in the refrigerator for refrigerating and aging for 20 days, then transfer it to the freezer for quick freezing, and set aside;

[0050] Among them, after each finish, it needs to be cooled befo...

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Abstract

The invention relates to the technical field of tea processing, and particularly discloses a physical extraction method of tea pigment by taking aged tea as a raw material. The physical extraction method comprises the following steps: selecting fresh green tea leaves, adding the tea leaves into a fixation machine, performing fixation for three times, performing reciprocating rolling, naturally airing, fermenting, and refrigerating aging; putting the tea leaves into a microwave oven to be quickly dissolved, transferring the tea leaves into a heatable crushing device, adding deionized water, andcontinuously crushing the tea leaves under a heating condition; drying tea residues, further crushing, supplementing a proper amount of deionized water, carrying out secondary extraction in ultrasonic waves, and filtering to obtain a secondary extracting solution; adding zinc gluconate into extracting solution, stirring, mixing and cooking, and then carrying out microfiltration and ultrafiltration to obtain an essence; and carrying out low-temperature vacuum concentration, and carrying out spray drying to obtain the tea pigment. The defects in the prior art are overcome, the tea pigment is extracted by adopting a physical extraction method after the tea leaves are aged, the extraction condition is mild, the extraction efficiency is high, and the cost is relatively low.

Description

technical field [0001] The invention relates to the technical field of tea processing, in particular to a method for physically extracting tea pigment from cooked tea. Background technique [0002] Tea is one of the three traditional beverages in the world and has multiple functions such as nutrition and health care. Tea pigment is a kind of water-soluble phenolic pigment extracted from tea leaves, which can be used as a natural pigment in food, beverage, textile printing and dyeing. Modern studies have shown that tea pigment has pharmacological effects such as anti-oxidation, enhancing immunity, lowering blood fat, lowering blood pressure, anti-atherosclerosis, lowering blood viscosity, improving microcirculation, and inhibiting experimental tumors. [0003] In the traditional leaching method, there are disadvantages such as long leaching time, high labor intensity, high energy consumption for raw material pretreatment, and easy damage of heat-sensitive components. The tr...

Claims

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Application Information

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IPC IPC(8): C09B61/00C09B67/54A23L5/43A23L2/58A23L5/00
CPCC09B61/00C09B67/0096A23L5/43A23L2/58A23L5/00A23V2002/00
Inventor 戴鹏
Owner 浙江中禄松波生物工程有限公司
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