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Rapid identification method for tea tree germplasm suitable for manufacturing flower and fruit type tea leaves

An identification method and tea tree technology, applied in measuring devices, instruments, scientific instruments, etc., can solve the problems of long identification cycle, consuming a lot of manpower, material and financial resources, and complex identification procedures, so as to reduce blindness and shorten the identification cycle. Effect

Active Publication Date: 2018-05-18
TEA RES INST OF FUJIAN ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The direct identification method has the disadvantages of long identification period, complex identification procedures, and a large amount of manpower, material and financial resources.

Method used

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  • Rapid identification method for tea tree germplasm suitable for manufacturing flower and fruit type tea leaves
  • Rapid identification method for tea tree germplasm suitable for manufacturing flower and fruit type tea leaves
  • Rapid identification method for tea tree germplasm suitable for manufacturing flower and fruit type tea leaves

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Embodiment 1, the judgment of new tea tree variety Chuntaoxiang

[0053] The oolong tea quality of the new tea variety Chuntaoxiang has been identified for three consecutive years by using the direct identification method (see Tables 2-4). Tea tree germplasm for making floral and fruity-flavored tea leaves.

[0054] Table 2. Sensory evaluation form of tea samples in 2012

[0055]

[0056] *The sensory code review of Fujian Tea Quality Supervision and Inspection Station.

[0057] Table 3. Sensory evaluation form of tea samples in 2013

[0058]

[0059] *The sensory code review of Fujian Tea Quality Supervision and Inspection Station.

[0060] Table 4. 2014 tea sensory evaluation form

[0061]

[0062] *The sensory code review of Fujian Tea Quality Supervision and Inspection Station.

[0063] Obtain the content of 3 kinds of glycosides (shown in table 5) of the new tea tree variety Chuntaoxiang according to the above-mentioned steps 1 to 2, and then compare ...

Embodiment 2

[0064] Embodiment 2, the determination of early spring millet tea tree variety

[0065] Zaochunhao is an excellent variety of tea tree suitable for making red and green tea approved by Fujian Province, and it is a tea tree variety that is not suitable for making flower and fruit aroma tea.

[0066] According to the above steps 1 to 2, the content of the three glycosides (shown in Table 5) is obtained, and then compared with the judgment standard, this variety does not meet the "total content of the three glycosides ≥ 150 µM / 100g dry weight (wherein, benzyl alcohol Primula glycoside content + phenylethanol primuloside ≥ 50µM / 100g dry weight, geranyl primuloside ≥ 100µM / 100g dry weight)", it is determined that early spring is definitely not a suitable variety of flower and fruit aroma tea, which is It shows that the identification result of applying the method of the present invention is consistent with the result of the direct identification method.

Embodiment 3

[0067] Embodiment 3, the judgment of Fuding large white tea tea tree variety

[0068] Fuding Dabai tea is an excellent variety of tea tree suitable for making red and green tea approved by the state, and it is a tea tree variety that is not suitable for making flower-fruit-flavored tea.

[0069] According to the above steps 1 to 2, the content of the three glycosides (shown in Table 5) is obtained, and then compared with the judgment standard. Methanol primuloside content + phenylethyl alcohol primuloside ≥ 50µM / 100g dry weight, geranyl primuloside ≥ 100µM / 100g dry weight)" to determine that Fuding Dabai tea is not suitable for floral and fruity aroma tea Variety, this shows that the identification result of applying the method of the present invention is consistent with the result of the direct identification method.

[0070] Table 5. Glycoside content of tested tea varieties (unit: µM / 100g dry weight)

[0071]

[0072] *①: Benzyl Alcohol Prinoside; ②: Phenyl Alcohol Pri...

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Abstract

The invention belongs to the field of tea tree germplasm resource identification utilization and new variety breeding, and particularly relates to a rapid identification method for the tea tree germplasm suitable for manufacturing flower and fruit type tea leaves. The method comprises the following steps that 1, fresh leaves are picked in the year when tea trees are planted, a glycoside compound in the fresh leaves is extracted at first, and a fresh leaf coarse glucoside extracting solution is prepared; 2, the contents of geranyl primrose glucoside, benzyl alcohol primrose gluocoside and phenethyl alcohol primrose glucoside in the fresh leaf coarse glucoside extracting solution are determined; 3, when the content of the phenethyl alcohol primrose glucoside and the content of the benzyl alcohol primrose gluocoside in the fresh leaf coarse glucoside extracting solution are larger than or equal to 50 micron / 100g by dry weight, and the content of the geranyl primrose glucoside is larger than or equal to 100 micron / 100g by dry weight, it is determined that the tea tree germplasm is suitable for manufacturing flower and fruit type tea leaves. The whole identification and analysis processcan be completed within one workday, and the identification period is greatly shortened compared with a direct identification method with the identification period being six years.

Description

technical field [0001] The invention belongs to the field of identification and utilization of tea tree germplasm resources and new variety selection and breeding, and in particular relates to a rapid identification method of tea tree germplasm suitable for making floral and fruity-flavored tea leaves. Background technique [0002] Aroma is one of the important factors to evaluate the quality of tea. The aroma of tea is especially flowery and fruity. Flowery and fruity aroma teas have always been favored by the tea consumer market. The formation of tea floral and fruity aroma characteristics is mainly affected by tea tree germplasm, cultivation and processing technology, among which tea tree germplasm is the basis. At present, the identification of tea tree germplasm suitable for flower and fruit aroma tea mainly adopts the direct identification method. This method produces tea samples by picking fresh leaves of tea trees, and then performs sensory evaluation on the tea sa...

Claims

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Application Information

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IPC IPC(8): G01N30/02
CPCG01N30/02
Inventor 王让剑高香凤张应根孔祥瑞杨军
Owner TEA RES INST OF FUJIAN ACADEMY OF AGRI SCI
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