Tea leaf and manufacturing method and applications thereof

A technology of tea and raw materials, which is applied in the field of tea and its preparation and application, and can solve problems such as unfavorable health and unreported natural resources

Inactive Publication Date: 2009-09-16
KUNMING INST OF BOTANY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, its effective blood concentration is close to the toxic blood concentration, and it is easy to cause nausea, vomiting, arrhythmia and other toxic and side effects. Excessive intake is n

Method used

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  • Tea leaf and manufacturing method and applications thereof
  • Tea leaf and manufacturing method and applications thereof
  • Tea leaf and manufacturing method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Example 1: Thick-axis green tea was prepared from the fresh leaves of Phyllostachys glabrata as raw material.

[0068] (1) According to the standard tea-making process, pick the fresh leaves of C. glabrata, heat them up instantly, knead them manually or mechanically, and dry them to obtain thick-stem green tea made of C. glabrata.

[0069] (2) The composition and content of tea polyphenols were detected by high pressure liquid chromatography (HPLC). HPLC analysis condition and result are as follows:

[0070] Instruments and reagents: Shimadzu 10AT high performance liquid chromatography, high-pressure binary pump, SPD-10Avp diode array detector, CLASS-LC10 workstation, chromatographically pure acetonitrile, ultrapure water. (1) Chromatographic conditions: the stationary phase is Agilent Zorbax SB-C18 (4.6×250mm, 5 μm) chromatographic column, the mobile phase is acetonitrile-0.34% phosphoric acid water gradient elution (0-45min, 4%-40% acetonitrile), the flow rate 1mL / m...

Embodiment 2

[0078] Example 2: Preparing Thick-shaft Sun-dried Green Tea with Fresh Leaves of Thick-shaft Tea

[0079] (1) According to the standard tea-making process, the fresh leaves of C. glabrata are picked, immediately heated to fix green leaves, manually or mechanically rolled, and dried in the sun to obtain thick-stem sun-dried green tea made of C. glabrata.

[0080] (2) High-pressure liquid chromatography (HPLC) and liquid chromatography-mass chromatography (LC-MS) were used to detect tea polyphenols, caffeine and theophylline and other components.

[0081] The analysis shows that the sun-dried green hair tea made from the fresh leaves of C. glabrata contains rich polyphenols and does not contain caffeine and theophylline. The HPLC analysis conditions are the same as in Example 1, and the results are shown in Table 4.

[0082] Table 4. Content Analysis of Main Components of Thick Shaft Sun-dried Green Tea

[0083]

Embodiment 3

[0084] Example 3: Tea beverages were prepared from tea leaves with thick shafts of calyx glabrata.

[0085] (1) Teabags and instant teas are made from the tea leaves made from the fresh leaves of C.

[0086] The detection results of high-pressure liquid chromatography (HPLC) and liquid chromatography-mass spectrometry (LC-MS) showed that the tea drink was rich in polyphenols and did not contain caffeine and theophylline. HPLC analysis condition is with embodiment 1, its result table 5:

[0087] Table 5. Content Analysis of Main Components of Thick Shaft Tea Beverage

[0088]

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Abstract

The invention provides a new tea leaf and a manufacturing method and applications thereof. In the manufacturing method, fresh leaves of a special camellia crassicolumna var. multiplex (Changet Tan) Ming) are taken as the raw material and the tea leaf is manufactured through processing techniques such as deactivation of enzymes, rolling and drying and is characterized by not containing purines alkaloid such as caffeine and theocin; composition and content of tea polyphenol of the tea leaf is similar to the composition and content of the tea leaf made of usually seen tea tree (Camellia sinensis and ribes heterotrichum) and the tea leaf is rich in tea polyphenolic components such as epicatechin (EC), Epicatechin gallate(ECG), epigallocatechin gallate (EGCG) and features obvious oxidation resistance and antibiosis. The tea leaf can be used for qualify tea drinks, functional health care food, cosmetics for special purpose and natural medicine and used as food additive applied to food-processing industry.

Description

Technical field: [0001] The present invention relates to a kind of tea, its preparation method and application. technical background: [0002] Tea is one of the three major beverages in the world. So far, the base source of tea is the fresh leaves of Camellia sinensis (Camellia sinensis) and its variant large-leaf tea (C. sinensis var. assamica). Polyphenolic compounds are the main characteristic components of tea and the main physiologically active substances of tea. Among them, catechin derivatives are the main ones, including epicatechin (EC), epigallocatechin (EGC), epicatechin gallate (ECG) and epigallocatechin gallate ( EGCG) etc. [0003] Tea contains a lot of caffeine. Caffeine has an excitatory effect on the central nervous system, not only affects sleep, but also affects the cardiovascular system and digestive system. Therefore, low-caffeine or caffeine-free tea drinks have become a hot topic today. A tea-making process for decaffeination has been successfull...

Claims

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Application Information

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IPC IPC(8): A23F3/06A23L1/29A23L1/03A23L3/3472A61K36/82A61K8/97A61Q19/00A61Q5/00A23L29/00A23L33/00
Inventor 张颖君刘青许敏杨崇仁
Owner KUNMING INST OF BOTANY - CHINESE ACAD OF SCI
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