Method for rapidly identifying Pu'er tea storage year based on gustation information

A Pu-erh tea and the obtained technology, applied in the direction of electrochemical variables of materials, etc., can solve the problems such as the requirements of experience and professional quality, the limitation of method promotion and popularization, objectification and absolute standardization, and easy to be affected by external factors. The effect of large-scale promotion and application, simple sample pretreatment, and short detection time

Active Publication Date: 2016-01-13
云南年份茶鉴定检测服务中心
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the industry generally agrees that there is a certain negative correlation between the tea polyphenol content of Pu-erh tea and the storage year, there is no unified standard to use this theory to evaluate the storage year of Pu-erh tea.
Therefore, at present, the identification of the quality of Pu-erh tea mai

Method used

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  • Method for rapidly identifying Pu'er tea storage year based on gustation information
  • Method for rapidly identifying Pu'er tea storage year based on gustation information
  • Method for rapidly identifying Pu'er tea storage year based on gustation information

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] In this example, raw Pu’er tea with different storage years was used as test samples. The samples were all purchased from the Maliandao tea market in Beijing. They were raw Pu’er tea with different storage years produced by the same tea factory, and the specific years were 2012, 2010, and 2007. and 2003, that is, raw Pu-erh tea with a storage period of 1 year, 3 years, 6 years and 10 years, a total of 24 samples, of which 6 samples for each storage period. The samples were pulverized, passed through a 40-mesh sieve, and stored in aluminum foil bags.

[0044] The samples of 16 different years are used as test samples, wherein, the storage period of every 4 samples to be tested is the same;

[0045] The remaining 8 different samples were used as verification samples, and the storage period of every two verification samples was the same.

[0046] In order to test the rationality of the selection of experimental samples, the content of tea polyphenols in the experimental s...

Embodiment 2

[0071] In this example, ripe Pu-erh tea with different storage years was used as test samples. The samples were purchased from the Maliandao tea market in Beijing. They were Pu-erh raw tea produced by the same tea factory with different storage years. The specific years were 2012, 2010, and 2007. and 2003, that is, raw Pu-erh tea with a storage period of 1 year, 3 years, 6 years and 10 years, a total of 24 samples, of which 6 samples for each storage period. The samples were pulverized, passed through a 40-mesh sieve, and stored in aluminum foil bags.

[0072] The samples of 16 different years are used as test samples, wherein, the storage period of every 4 samples to be tested is the same;

[0073] The remaining 8 different samples were used as verification samples, and the storage period of every two verification samples was the same.

[0074] In order to test the rationality of the selection of experimental samples, the content of tea polyphenols in the experimental sample...

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Abstract

The invention discloses a method for rapidly identifying Pu'er tea storage year based on gustation information. The method for rapidly identifying Pu'er tea storage year comprises at room temperature,detecting the gustation information of Pu'er tea stored at different years by utilizing a sensor type electronic tongue, so as to realize identification on the Pu'er tea storage year. The provided identification method is simple in sample pretreatment, free of organic solvents in the whole experiment process, high in safety, rapid in detection speed, and high in identification accuracy. The instrument can continuously work, and the method is relatively suitable for continuous real-time detection, and is convenient for large-scale popularization application. The method is simple in operation, helps to realize rapid qualitative quantitative analysis on Pu'er tea stored at different years by taking gusatation information as indexes, and is a novel, objective and accurate method for identifying Pu'er tea storage years.

Description

technical field [0001] The invention belongs to the field of food, and relates to a method for identifying the storage age of Pu'er tea, in particular to a method for quickly identifying the age of Pu'er tea based on taste information. Background technique [0002] Pu'er tea is a unique tea in my country, and it has important health effects such as anti-oxidation and blood fat reduction. According to the different crafts, it can be divided into Pu'er raw tea and Pu'er cooked tea. Since Puer tea is a post-fermented tea, tea polyphenols, the unique components of Puer tea, undergo a series of transformations under the action of microorganisms and enzymes, which directly or indirectly affect the quality of Puer tea, so that the quality of Puer tea increases with the extension of storage years. Therefore, the price of Pu'er tea in different storage years varies greatly. Although the industry generally agrees that there is a certain negative correlation between the tea polypheno...

Claims

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Application Information

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IPC IPC(8): G01N27/26
Inventor 吴继红边孟贤刘俊梅高林赵文婷
Owner 云南年份茶鉴定检测服务中心
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