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Method for preparing dendrobe black tea

A production method and technology of dendrobium, applied in the direction of tea treatment before extraction, can solve the problems of difficult to release active ingredients, difficult to use active ingredients, unsatisfactory natural yield, etc. Mild taste without bitterness

Inactive Publication Date: 2018-09-14
SOUTH ASIAN TROPICAL AGRI SCI RES INST OF GUANGXI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because wild Dendrobium officinale mainly grows on the cliffs of high mountains, because its seeds are extremely small, as fine as dust and have no endosperm, the germination rate is extremely low under natural conditions, and natural resources are very scarce.
Coupled with years of unrestrained mining, wild resources are becoming increasingly depleted, and the natural output cannot meet the current market demand
[0003] The stems of Dendrobium candidum are mostly used in the market to make Dendrobium candidum, and the leaves of Dendrobium candidum are leathery leaves with thick epidermal cell walls and well-developed cuticles, so the active ingredients contained in the leaves of Dendrobium candidum are difficult to release Therefore, the active ingredients in the leaves of Dendrobium officinale are difficult to be utilized

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A preparation method of dendrobium black tea, comprising the following steps:

[0033] (1) Withering at room temperature: Evenly spread the fresh leaves of Dendrobium with one bud and one leaf in the withering tank. The thickness of the fresh leaves of Dendrobium is 5cm, the withering temperature is 20°C, and the withering time is 30h. Wither to the moisture content of the dendrobium leaves 80%;

[0034] (2) Withering with high temperature and hot air: Withering the dendrobium leaves with hot air at room temperature, the withering temperature is 60°C, the withering time is 1.5h, and the dendrobium leaves are turned every 25 minutes during the withering period, until the moisture content of the dendrobium leaves is withered to 70%;

[0035] (3) Medium-temperature hot air withering: Withering the dendrobium leaves with high-temperature hot air, the withering temperature is 50°C, the withering time is 0.8h, and the dendrobium leaves are turned every 20 minutes during the w...

Embodiment 2

[0044] A preparation method of dendrobium black tea, comprising the following steps:

[0045] (1) Withering at room temperature: Evenly spread the fresh leaves of Dendrobium with one bud and two leaves in the withering tank. 85%;

[0046](2) Withering with high temperature and hot air: Withering the dendrobium leaves at room temperature with hot air, the withering temperature is 65°C, the withering time is 2.5 hours, and the dendrobium leaves are turned every 35 minutes during the withering period, until the moisture content of the dendrobium leaves is withered to 75%;

[0047] (3) Medium-temperature hot air withering: Withering the dendrobium leaves with high-temperature hot air, the withering temperature is 55°C, the withering time is 1.3h, and the dendrobium leaves are turned every 25 minutes during the withering period until the moisture content of the dendrobium leaves is 65 %;

[0048] (4) Preliminary kneading: Knead the withered Dendrobium leaves with a kneading machi...

Embodiment 3

[0056] A preparation method of dendrobium black tea, comprising the following steps:

[0057] (1) Withering at room temperature: evenly spread the fresh leaves of Dendrobium with one bud and one leaf in the withering tank. 82%;

[0058] (2) Withering with high temperature and hot air: Withering the dendrobium leaves at room temperature with hot air, the withering temperature is 62°C, the withering time is 1.8h, and the dendrobium leaves are turned every 30 minutes during the withering period, until the moisture content of the dendrobium leaves is withered to 73%;

[0059] (3) Medium-temperature hot air withering: Withering the dendrobium leaves with high-temperature hot air, the withering temperature is 53°C, the withering time is 1.1h, and the dendrobium leaves are turned every 23 minutes during the withering period, until the moisture content of the dendrobium leaves is 58 %;

[0060] (4) Preliminary kneading: Knead the withered Dendrobium leaves with a kneading machine, t...

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Abstract

The invention provides a method for preparing dendrobe black tea. By adopting the method, normal temperature withering is performed, and the problems of incomplete transformation of effective substances and dendrobe leaf withering, which are caused by direct high-temperature hot air withering and favorable to the quality of finished product tea, can be avoided; medium-temperature hot air witheringis performed, transformation of substances, which are favorable to the quality of finished product tea, in dendrobe leaves can be further promoted, and the grass odor of dendrobe leaves can completely disappear; during rolling, primary rolling is performed at first, and secondary rolling is performed by utilizing a fast wrapping machine, so that cells of dendrobe leaves can be disrupted more uniformly, the dendrobe leaves can be fermented more uniformly, the cell walls of epidermal stratum corneum cells on dendrobe leaves can be broken, and effective ingredients in the cells can be sufficiently released; and the drying temperature is reasonably controlled, and twice drying is performed at the drying temperature from low to high, so that the problem of scorched flavor of tea caused by overhigh drying speed and over high drying temperature can be avoided.

Description

technical field [0001] The invention relates to the technical field of tea processing, in particular to a method for preparing dendrobium black tea. Background technique [0002] Fresh Dendrobium has a strong ability to clear away heat and generate body fluid. Warm heat and pathogenic factors enter the blood. It should be used for patients with high fever and dysphoria. Dried Dendrobium nourishes yin and clears tonic. Dendrobium candidum and Dendrobium nobile have strong medicinal power. Dendrobium huoshanense is suitable for the elderly and those with insufficient Yin fluid. Dendrobium earrings can produce body fluid without coldness. It can be used as a substitute for tea to appetize and invigorate the spleen. Modern chemical and pharmacological studies have shown that the main active ingredient of Dendrobium officinale is polysaccharide, and the polysaccharide content is as high as 20% to 30%. Because of its polysaccharides, alkaloids, amino acids, trace elements and oth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23F3/14A23F3/06A23F3/08A23F3/12
CPCA23F3/06A23F3/08A23F3/12A23F3/14
Inventor 徐冬英梁光志罗莲凤阳景阳李子平刘汉焱冯红钰莫小燕冯兰
Owner SOUTH ASIAN TROPICAL AGRI SCI RES INST OF GUANGXI
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