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Method for processing stevia rebaudiana dark green tea

A processing method and technology of stevia, applied in the field of tea technology and stevia dark tea technology

Inactive Publication Date: 2013-04-03
NANJING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Roasting and drying after stacking fermentation; pressing to obtain stevia dark tea products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: Get the fresh leaves of Stevia rebaudiana, then carry out microwave de-enzyming treatment under medium fire, then carry out preliminary rubbing to it, insert coronoid process loose cyst fungus (Eurotium cristatum) ATCC22166, then put into incubator and carry out pile fermentation , temperature 35°C, time 1d. After kneading and baking, the leaves are pressed.

Embodiment 2

[0016] Embodiment 2: Take the dried stevia rebaudiana leaves, spray them with an appropriate amount of water, and then carry out microwave de-encapsulation treatment under medium heat, and then knead the leaves until they become strips. Insert Eurotium chevalieri, ACCC bacteria number 31812, and then put it into an incubator for compost fermentation at a temperature of 28° C. for 7 days. After kneading and baking, the leaves are pressed.

Embodiment 3

[0017] Embodiment 3: Take the fresh leaves of Stevia rebaudiana, and then carry out microwave de-enzyming treatment under medium heat, and then carry out preliminary kneading on the leaves until they are stripped. Inject Eurotium repens, and then put them into an incubator for compost fermentation at a temperature of 15°C for 10 days. After kneading and baking, the leaves are pressed.

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PUM

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Abstract

The invention relates to a method for producing dark green tea from stevia rebaudiana as a raw material. The method comprises the following steps of: selecting stevia rebaudiana tender shoots or fresh leaves or dried leaves as the raw material; after bacterial inoculation, performing pile fermentation at the temperature ranging from 15 to 35 DEG C for 1-10 d; performing roasting drying after the pile fermentation; and pressing to obtain the stevia rebaudiana dark green tea product. The stevia rebaudiana dark green tea obtained by the method provided by the invention has the effects of reducing blood pressure, resisting diabetes, resisting virus and the like as the stevia rebaudiana leaves contain bioactive substances such as stevioside, caffeoyl quinic acid, and flavone.

Description

technical field [0001] The invention relates to the field of tea technology, in particular to the field of stevia dark tea technology. Background technique [0002] According to the appearance of the finished tea is black, hence the name dark tea. One of the six major teas. It is a fully fermented tea. The main producing areas are Sichuan, Yunnan, Hubei, Hunan and other places. The tea making process generally includes four processes of greening, rolling, stacking and baking. Dark tea is rich in nutrients, such as vitamins, minerals, proteins, amino acids, polyphenols, flavonoids, sugars and so on. The physiologically active substances have the effects of reducing fat and losing weight, helping digestion, anti-oxidation, anti-cancer, anti-mutation, lowering blood pressure, and lowering blood sugar. [0003] On the surface and inside of the finished dark tea, there are small dots formed by the golden fungus commonly known as "golden flower", which is the main feature tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23F3/34A23F3/14
Inventor 陈育如张怡斐张卫明杨士杰郑剑陈雁戴科伟
Owner NANJING NORMAL UNIVERSITY
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