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Method for preparing Tieguanyin tea extract and Tieguanyin tea extract

The technology of Guanyin killing green tea and extract is applied in the field of Tieguanyin killing green tea extract and preparing Tieguanyin killing green tea extract, which can solve the problems of low yield of target substance, affecting the use and application effect of tea polysaccharide, long extraction time and the like.

Active Publication Date: 2019-01-04
CHINA TOBACCO FUJIAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Tea polysaccharides are generally extracted by alkaline extraction and alcohol precipitation method, microwave ultrasonic method and fermentation alcohol precipitation method. Although the extraction method is cheap and safe to operate, the overall extraction time is too long, the yield of the target substance is low, and the purity is low, which affects the quality of tea. The use and application effect of polysaccharide

Method used

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  • Method for preparing Tieguanyin tea extract and Tieguanyin tea extract
  • Method for preparing Tieguanyin tea extract and Tieguanyin tea extract
  • Method for preparing Tieguanyin tea extract and Tieguanyin tea extract

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0089] Go to Anxi Xianghua, where Tieguanyin is produced, and pick the young leaves of Tieguanyin spring tea according to the Tieguanyin picking requirements. The Tieguanyin green tea can be directly used as a raw material for extraction, or the Tieguanyin green tea can be rapidly frozen and kept fresh, and the obtained fresh Tieguanyin green tea can be used as a raw material for extraction.

[0090] in:

[0091] Withering method: evenly spread the picked young leaves of Tieguanyin spring tea in a cool and ventilated place for drying at a temperature of 30°C until the leaves lose their luster, the leaves are soft, the bottom of the leaves are held by the hand, and the tops of the leaves droop to obtain the withered Dark green.

[0092] Greening method: put the withered green tea into the shaker for green processing, the amount of green tea added is half of the volume of the shaker, the speed of the shaker is 30r / min, and the temperature of the shaker is 22°C. The drying temp...

preparation example 2

[0096] The Tieguanyin degreening tea obtained after the degreening treatment in Preparation Example 1 was subjected to treatments such as kneading and baking to obtain finished Tieguanyin tea leaves.

[0097] in:

[0098] Kneading and baking method: adopt the traditional three-kneading and three-baking method, that is, initial kneading - first kneading - second kneading - second kneading - second kneading - drying, so that the Tieguanyin tea leaves are formed into granules and further dehydrated to obtain iron tea. Guanyin hair tea. Specifically: wrap Tieguanyin green tea in a tea towel, use a bagging machine to wrap the whole tea bag tightly into a ball shape, and knead the bag for 10 minutes at the beginning, after standing for 30 minutes, break up the tea balls and put them in an oven for the first time. Bake, oven temperature is 60 ℃, time 5 minutes, after repeating three times, the tealeaves that will be kneaded again is dried in oven, temperature is 80 ℃, time 3 hours. ...

Embodiment 1

[0101] 1. Preparation of Tieguanyin tea extract 1#

[0102] refer to figure 1 process for preparation.

[0103] (1) Water extraction: take by weighing 10kg of the fresh Tieguanyin green tea obtained in Preparation Example 1, add 100kg of water, reflux and extract at 80°C for 120 minutes, carry out solid-liquid separation with a 200-mesh filter cloth, and repeat the above for the filter residue Leaching and solid-liquid separation operations, combining the filtrate obtained twice is the initial extract;

[0104] (2) microfiltration: the initial extraction liquid is subjected to microfiltration treatment, the aperture of the microfiltration membrane is 200nm, and the working pressure of the microfiltration equipment is 6bar;

[0105] (3) Ultrafiltration: The permeate of the microfiltration is subjected to two-stage ultrafiltration treatment, the filter membrane molecular weight cut-off of the first stage ultrafiltration is 20000Dal, and the working pressure is 10bar; the perme...

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Abstract

The invention belongs to the field of cigarette additives, and relates to a method for preparing Tie Guanyin enzyme-deactivated tea extract. The method includes steps of (1), extracting Tie Guanyin enzyme-deactivated tea by the aid of water and carrying out separation to obtain primary extract liquid; (2), carrying out micro-filtration treatment on the primary extract liquid by the aid of micro-filtration membranes to obtain micro-filtration permeation liquid; (3-1), carrying out ultra-filtration treatment on the micro-filtration permeation liquid by the aid of ultra-filtration membranes to obtain ultra-filtration permeation liquid. The pore diameters of the micro-filtration membranes are 60-700 nm or 900-1200 nm. The molecular weight cut-off of the ultra-filtration membranes is 5000-100000 Dal. The invention further relates to the Tie Guanyin enzyme-deactivated tea extract and application thereof. The method, the Tie Guanyin enzyme-deactivated tea extract and the application have the advantages that the Tie Guanyin enzyme-deactivated tea extract prepared by the aid of the method can be added into cigarettes, accordingly, the cigarettes have harmonious and soft aroma, offensive odor can be concealed to a great extent, irritation can be reduced, aftertaste, the mouth comfort and the faint scent aroma can be enhanced, and the integral smoking quality of the cigarettes can be obviously improved.

Description

technical field [0001] The invention belongs to the field of tobacco additives, and in particular relates to a method for preparing an extract of Tieguanyin tea, and also relates to an extract of Tieguanyin tea. Background technique [0002] my country is the origin of tea, with a vast tea area and various names. Traditionally, there are six types of tea in China: green tea, black tea, oolong tea, white tea, yellow tea and dark tea. At present, there have been reports on the preparation of extracts from fresh tea leaves or finished tea leaves; Zhong (CN200410028124.7), Wang Hongxin, etc. (CN201010267422.7) disclosed methods for extracting tea essence from refined tea respectively. [0003] With the technological progress of my country's tobacco industry and the goal of vigorously developing Chinese-style cigarettes, tobacco additives, as an important core technology in the tobacco industry, have become one of the keys to forming the quality characteristics of Chinese-style ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A24B15/24
CPCA24B15/24
Inventor 伊勇涛范坚强张峰李斌连芬燕向晨余志强邓小华谢金栋刘加增
Owner CHINA TOBACCO FUJIAN IND
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