CN111685201A - Method for preparing theabrownin by using instant tea powder as raw material - Google Patents

Method for preparing theabrownin by using instant tea powder as raw material Download PDF

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Publication number
CN111685201A
CN111685201A CN202010608132.8A CN202010608132A CN111685201A CN 111685201 A CN111685201 A CN 111685201A CN 202010608132 A CN202010608132 A CN 202010608132A CN 111685201 A CN111685201 A CN 111685201A
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China
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theabrownin
raw material
tea
preparing
tea powder
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CN202010608132.8A
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Chinese (zh)
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董孝胜
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Individual
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Individual
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Priority to CN202010608132.8A priority Critical patent/CN111685201A/en
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    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23FCOFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
    • A23F3/00Tea; Tea substitutes; Preparations thereof
    • A23F3/16Tea extraction; Tea extracts; Treating tea extract; Making instant tea
    • A23F3/166Addition of, or treatment with, enzymes or microorganisms
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23FCOFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
    • A23F3/00Tea; Tea substitutes; Preparations thereof
    • A23F3/16Tea extraction; Tea extracts; Treating tea extract; Making instant tea
    • A23F3/22Drying or concentrating tea extract

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Microbiology (AREA)
  • Tea And Coffee (AREA)

Abstract

The invention aims to provide a method for preparing theabrownin by using instant tea powder as a raw material, which has the advantage of strong controllability, can improve the production efficiency and the product quality, broadens the source channel of the raw material, reduces the raw material cost and improves the economic benefit. The method for preparing theabrownin by using instant tea powder as a raw material comprises the following steps: A. selecting instant tea powder with the tea polyphenol content reaching the preset content; B. dissolving instant tea powder in water to obtain tea water solution; C. adding biological enzyme into the tea water solution for oxidation reaction; D. filtering and concentrating the tea water solution after the oxidation reaction to obtain a concentrated solution with a preset concentration; E. drying the concentrated solution to prepare powder to obtain the finished theabrownin product.

Description

Method for preparing theabrownin by using instant tea powder as raw material
Technical Field
The invention belongs to the technical field of food processing, and particularly relates to a preparation method of theabrownin.
Background
China is a world-wide tea-producing nation, and Chinese people have more than five thousand years of history of drinking tea, and the drinking tea is beneficial to the common knowledge of health people. Tea pigment, theabrownin and catechin in the tea have various effects of reducing blood fat, blood sugar and blood pressure, resisting oxidation, tumors, radiation, aging, cardiovascular and cerebrovascular diseases and the like, and the medicinal value of the tea is continuously valued by people. At present, people can extract and separate theabrownin from tea leaves, and the preparation method specifically comprises the steps of tea leaf leaching, multi-stage filtration, air-entrapping oxidation, reverse osmosis concentration, thermal concentration and the like, and has the following disadvantages:
the whole production process has long flow, large equipment investment and low production efficiency, and has ten working procedures from raw material input to theabrownin product output; the content of active ingredients of the product is low, and is only about 60 percent; the quality of the produced theabrownin is influenced by the quality of the raw materials and is not stable enough; a large amount of tea leaves and waste water are produced in the production process, the environmental pollution is great, and the site selection of a factory is greatly limited; the production process is very extensive, can not meet the requirements of fine chemical production, and has poor economic benefit.
Secondly, due to the long production process flow, the problem of frequent product quality fluctuation caused by human or equipment control errors in the production process is increased.
And thirdly, the raw materials can be purchased only nearby, so that the source of the raw materials is limited, the price of the raw materials is difficult to reduce, and the raw materials are easily influenced by natural disasters.
Disclosure of Invention
The invention aims to provide a method for preparing theabrownin by using instant tea powder as a raw material, which has the advantage of strong controllability, can improve the production efficiency and the product quality, broadens the source channel of the raw material, reduces the raw material cost and improves the economic benefit.
The method for preparing theabrownin by using instant tea powder as a raw material comprises the following steps:
A. selecting instant tea powder with the tea polyphenol content reaching the preset content;
B. dissolving instant tea powder in water to obtain tea water solution;
C. adding biological enzyme into the tea water solution for oxidation reaction;
D. filtering and concentrating the tea water solution after the oxidation reaction to obtain a concentrated solution with a preset concentration;
E. drying the concentrated solution to prepare powder to obtain the finished theabrownin product.
Specifically, the biological enzyme in the step C is pectin biological enzyme, and the tea water solution can better perform oxidation reaction under the catalytic action of the pectin biological enzyme.
In the preparation method of theabrownin, the instant tea powder with stable tea polyphenol content is directly adopted as the raw material, so that the source of the raw material is not limited by regions any more, the raw material can be imported from southeast Asia and the like, the price of the raw material is favorably reduced, the content of the tea polyphenol in the instant tea powder is 3-9 times of that of common tea or Pu' er tea, and the tea polyphenol is a main substance for converting the tea polyphenol into the theabrownin, so that the product produced by using the instant tea powder as the raw material has high theabrownin content, excellent quality and stable and reliable quality. The preparation method of the invention has the advantages that the production process flow is greatly shortened, the production procedures of tea extraction, slag discharge, filtration, fine filtration, membrane concentration and the like in the traditional preparation method are omitted, the fixed asset investment of a production line is saved, the production process is changed from a rough type to a fine chemical production mode, the human or equipment control errors in the production process are reduced, the preparation process is more accurate and controllable through the control of production process parameters, the quality of the produced theabrownin is more stable, and the content of effective components can reach more than 99%.
Drawings
Fig. 1 is a process flow diagram of the method for preparing theabrownin using instant tea powder as a raw material according to the present invention.
Detailed Description
The following description of the embodiments of the present invention, with reference to the accompanying drawings, will explain the working principles of the present invention in further detail.
Example 1:
the embodiment provides a method for preparing theabrownin by using instant tea powder as a raw material, which specifically comprises the following steps:
A. selecting instant tea powder with tea polyphenol content reaching a preset content, wherein the high-grade instant green tea powder is adopted in the embodiment, and the tea polyphenol content is more than or equal to 80%;
B. adding instant tea powder and purified water into a raw material extraction tank, heating to 40 ℃, and dynamically dissolving into a 10% tea water solution;
C. adding pectin biological enzyme into the tea water solution, and then carrying out oxidation reaction, wherein the addition standard of the pectin biological enzyme is that 100mg of biological enzyme is added into every 1Kg of tea water solution, the oxidation reaction is carried out by adding pure oxygen at 40 ℃ under two atmospheric pressures, and the oxidation reaction time is 60 minutes;
D. firstly, carrying out high-speed centrifugal separation on a tea water solution after oxidation reaction to remove particulate matters, and then sequentially carrying out super filtration, reverse osmosis concentration and vacuum concentration on the tea water solution to prepare a qualified concentrated solution; wherein the precision of the super filtration is 30 ten thousand of molecular weight, the multiple of the reverse osmosis concentration is 5-8 times, and the concentration mass percentage content of the concentrated solution after vacuum concentration reaches more than 30%;
E. spray drying the concentrated solution in a drying tower to prepare powder to obtain a theabrownin product, wherein the powder particles of the theabrownin finished product are smaller than 200 meshes, and the water content is smaller than 3%; and finally, carrying out product detection on the finished product of the theabrownin, packaging and warehousing.
The invention has been described in connection with the accompanying drawings, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of the components set forth in the following description, as long as the invention is capable of being practiced without modification in any way whatsoever, and is capable of other applications without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (8)

1. A method for preparing theabrownin by using instant tea powder as a raw material is characterized by comprising the following steps:
A. selecting instant tea powder with the tea polyphenol content reaching the preset content;
B. dissolving instant tea powder in water to obtain tea water solution;
C. adding biological enzyme into the tea water solution for oxidation reaction;
D. filtering and concentrating the tea water solution after the oxidation reaction to obtain a concentrated solution with a preset concentration;
E. drying the concentrated solution to prepare powder to obtain the finished theabrownin product.
2. The method for preparing theabrownin using instant tea powder as a raw material according to claim 1, wherein the bio-enzyme in the step C is pectin bio-enzyme.
3. The method for preparing theabrownin using instant tea powder as a raw material according to claim 1 or 2, wherein the predetermined content in the step a is 80% or more.
4. The method for preparing theabrownin using instant tea powder as a raw material according to claim 1 or 2, wherein the concentration of the aqueous tea solution in the step B is 10%.
5. The method for preparing theabrownin starting from instant tea powder as claimed in claim 1 or 2, wherein the standard of addition of the bio-enzyme in the step C is 100mg per 1Kg of tea aqueous solution.
6. The method for preparing theabrownin from instant tea powder as a raw material according to claim 1 or 2, wherein the step C is carried out by adding oxygen at 40 ℃ under two atmospheric pressures for an oxidation reaction time of 60 minutes.
7. The method for preparing theabrownin from instant tea powder as a raw material according to claim 1 or 2, characterized in that, in the step D, the tea aqueous solution after oxidation reaction is firstly subjected to centrifugal separation to remove particulate matters, and then the tea aqueous solution is subjected to super filtration, reverse osmosis concentration and vacuum concentration in sequence to obtain a concentrated solution; wherein the precision of the super filtration is 30 ten thousand molecular weight, the multiple of the reverse osmosis concentration is 5-8 times, and the concentration mass percentage content of the concentrated solution of the vacuum concentration reaches more than 30%.
8. The method for preparing theabrownin from instant tea powder as a raw material according to claim 1 or 2, wherein the step E is to dry the concentrated solution in a drying tower to prepare the theabrownin product, wherein the granule of the theabrownin product is less than 200 meshes and the water content is less than 3%.
CN202010608132.8A 2020-06-29 2020-06-29 Method for preparing theabrownin by using instant tea powder as raw material Pending CN111685201A (en)

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CN202010608132.8A CN111685201A (en) 2020-06-29 2020-06-29 Method for preparing theabrownin by using instant tea powder as raw material

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Application Number Priority Date Filing Date Title
CN202010608132.8A CN111685201A (en) 2020-06-29 2020-06-29 Method for preparing theabrownin by using instant tea powder as raw material

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CN111685201A true CN111685201A (en) 2020-09-22

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3666484A (en) * 1969-11-12 1972-05-30 Lipton Inc Thomas J Process for making a spray-dried instant tea of desired bulk density
CN1285152A (en) * 2000-09-14 2001-02-28 龙坚 High-active tawny agent and productive method thereof
CN1989851A (en) * 2005-12-26 2007-07-04 康波 Process for producing high purity food-grade tea pigment
CN103451233A (en) * 2012-10-27 2013-12-18 陈小强 Method for preparing theabrownin by taking tea polyphenol as active ingredients through adopting compound enzyme process

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3666484A (en) * 1969-11-12 1972-05-30 Lipton Inc Thomas J Process for making a spray-dried instant tea of desired bulk density
CN1285152A (en) * 2000-09-14 2001-02-28 龙坚 High-active tawny agent and productive method thereof
CN1989851A (en) * 2005-12-26 2007-07-04 康波 Process for producing high purity food-grade tea pigment
CN103451233A (en) * 2012-10-27 2013-12-18 陈小强 Method for preparing theabrownin by taking tea polyphenol as active ingredients through adopting compound enzyme process

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
张芬等: "外源酶对六堡茶渥堆过程中色素转化规律影响", 《食品研究与开发》 *

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Application publication date: 20200922