Preparation method of eucommia black tea powder

The technology of black tea powder and Eucommia ulmoides leaves is applied in the field of preparation of Eucommia ulmoides black tea powder, which can solve the problems of high production energy consumption, high operation cost, complicated process and the like, and achieve the effects of long service life, simple operation process and easy cleaning.

Inactive Publication Date: 2012-09-26
HUBEI TAIYANGFENG BIO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing eucommia black tea powder using eucommia leaves as raw material in view of the existing eucommia leaves tea making process is cumbersome, production energy consumption is large, and the running cost is extremely high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Spread 75kg of eucommia leaves in a tank to dry in the air, make the eucommia leaves wither until the water content of the leaves is 65%; add 200kg of water to the withered leaves, put them into 55°C water for 120min, adjust the temperature to 50°C, and adjust the pH to 5, Add 187.5g of cellulase, enzymatically hydrolyze in the stirring tank for 2h; then feed oxygen 5L / min, start the agitator at 30°C, and ferment for 120min while stirring at 200r / min; heat up to 90°C after fermentation Enzyme treatment for 30 minutes, the solution after deactivation was passed through the ultrafiltration membrane under the conditions of pressure of 0.4MPa, temperature of 40°C, and flow rate of 60L / min to obtain 200kg of filtrate; the filtrate was passed through nanofiltration with a molecular weight cut-off of 200Dal Concentrate the membrane under the conditions of pressure 1.0MPa, temperature 40°C, and flow rate 20L / min to obtain 40kg of concentrated solution; the concentrated solution ...

Embodiment 2

[0025] Spread 75kg of eucommia leaves in a tank to dry in the air, make the eucommia leaves wither until the water content of the leaves is 70%; add 250kg of water to the withered leaves, soak them in 60°C water for 120min, keep the temperature at 60°C, adjust the pH to 5.5, add Cellulase 375g, enzymatic hydrolysis in a stirring tank for 3h; after that, feed oxygen 8L / min, start the agitator at a temperature of 30°C, and ferment for 100min while stirring at 250r / min; after the fermentation is completed, heat up to 90°C to deactivate the enzyme treatment After 30 minutes, the solution after deactivation was passed through the ultrafiltration membrane under the conditions of pressure of 0.4MPa, temperature of 50°C, and flow rate of 70L / min to obtain 240kg of filtrate; Concentrate at a pressure of 1.5 MPa, a temperature of 50°C, and a flow rate of 20 L / min to obtain 44 kg of a concentrated solution; the concentrated solution is spray-dried by a spray dryer to obtain 10.3 kg of euc...

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PUM

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Abstract

The invention discloses a preparation method of eucommia black tea powder. The preparation method comprises the following steps of carrying out deterioration of eucommia leaves, adding water into the eucommia leaves, carrying out extraction at a middle temperature, carrying out cellulase hydrolysis, feeding oxygen into hydrolysates, carrying out aerobic fermentation, after the aerobic fermentation is finished, carrying out sterilization and ultrafiltration membrane purification of a fermentation broth, carrying out nano-filtration membrane condensation of filtrate, and carrying out spray drying to obtain the eucommia black tea powder. The eucommia black tea powder fully retains biologically-active substances of eucommia leaves, has certain nutrition and health-care effects, is rich in nutrients and has a good taste. The preparation method of the eucommia black tea powder has simple and feasible processes, is safe in operation and does not produce secondary pollution and a large amount of waste water.

Description

technical field [0001] The invention relates to a method for preparing tea powder, in particular to a method for preparing eucommia black tea powder. Background technique [0002] Eucommia ulmoides is a unique economic tree species in my country. It is a precious medicinal material and a raw material for extracting rubber industry. It is a treasure all over the body. Eucommia has been used as medicine more than two thousand years ago. Li Shizhen listed Eucommia as top grade. The main active ingredients contained in Eucommia leaves are more than 40 compounds such as iridoids, phenylpropanoids, flavonoids, lignans and Eucommia polysaccharides. Studies have shown that they all have significant pharmacological and biological activities. Japanese scholars have found that the antihypertensive effect of Eucommia is mainly geniposide of iridoids. In addition, geniposidic acid also has anti-complement activity and anti-tumor effect. Chlorogenic acid is a promising anti-HIV lead ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23F3/34
Inventor 刘冬成万端极徐国念李丹刘芸芳
Owner HUBEI TAIYANGFENG BIO TECH
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