Selenium-enriched nano-tea and processing method thereof

A technology for selenium-enriched tea and selenium-enriched tea is applied in the field of tea processing, which can solve the problems of low intake of selenium element, low utilization rate of selenium element, and high production cost of selenium-enriched tea, and achieves an increase in organic selenium content, an increase in content, and a reduction in organic selenium content. The effect of production costs

Inactive Publication Date: 2017-07-25
横县南方茶厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problems of low intake of selenium element in human body, low utilization rate of selenium element in selenium-enriched tea, and high production cost of selenium-enriched tea, the invention provides a selenium-enriched nano-tea and a processing method thereof to solve the above problems, and can also Increase the aroma of selenium-enriched tea for a better sensory experience

Method used

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  • Selenium-enriched nano-tea and processing method thereof
  • Selenium-enriched nano-tea and processing method thereof
  • Selenium-enriched nano-tea and processing method thereof

Examples

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Effect test

Embodiment 1

[0043] A kind of selenium-enriched nano tea, the preparation process of said selenium-enriched tea is as follows:

[0044] Pick fresh tea leaves; pile the tea leaves into a pile of 8 cm high, and sterilize them with steam at 99°C for 3 minutes; mix the sterilized tea leaves with the selenium-enriched fermentation bacteria cultivated in cultivation method 1, pile them into a pile of tea piles with a height of 75 cm, and ferment them for 3 minutes. In one day, the fermentation temperature is controlled at 35°C to obtain selenium-enriched tea; it is pulverized by a pulverizer, airflow crushed, and multi-level nano-ball milled to form tea powder with a particle size of 100nm to obtain selenium-enriched nano-tea.

[0045] According to GB / t21729-2008, the content of selenium in tea is detected. After the tea sample is heated and digested with acid, the hexavalent selenium in the sample is reduced to tetravalent selenium in 6mol / L hydrochloric acid medium, and potassium borohydride is...

Embodiment 2

[0047] A kind of selenium-enriched nano tea, the preparation process of said selenium-enriched tea is as follows:

[0048]Pick fresh tea leaves; pile the tea leaves into a tea pile with a height of 10 cm, and steam sterilize at 120°C for 5 minutes; mix the sterilized tea leaves with the selenium-enriched fermentation bacteria cultivated in cultivation method 2, and pile them into a tea pile with a height of 80 cm. Ferment for 7 days, and the fermentation temperature is controlled at 55°C to obtain selenium-enriched tea; after pulverization with a pulverizer, airflow crushing, multi-level nano ball milling, and pulverize into tea powder with a particle size of 200nm, selenium-enriched nano tea is obtained.

[0049] According to GB / t21729-2008, the content of selenium in tea is detected. After the tea sample is heated and digested with acid, the hexavalent selenium in the sample is reduced to tetravalent selenium in 6mol / L hydrochloric acid medium, and potassium borohydride is us...

Embodiment 3

[0051] A kind of selenium-enriched nano tea, the preparation process of said selenium-enriched tea is as follows:

[0052] Pick fresh tea leaves; pile the tea leaves into a tea pile with a height of 12 cm, and steam sterilize at 110°C for 5 minutes; mix the sterilized tea leaves with the selenium-enriched fermentation bacteria cultivated by cultivation method 3, and pile them into a tea pile with a height of 85 cm. Ferment for 5 days, and the fermentation temperature is controlled at 40°C to obtain selenium-enriched tea; after pulverization with a pulverizer, airflow crushing, and multi-level nano-ball milling, it is pulverized into tea powder with a particle size of 150nm to obtain selenium-enriched nano-tea.

[0053] According to GB / t21729-2008, the content of selenium in tea is detected. After the tea sample is heated and digested with acid, the hexavalent selenium in the sample is reduced to tetravalent selenium in 6mol / L hydrochloric acid medium, and potassium borohydride ...

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Abstract

The invention relates to selenium-enriched nano-tea and a processing method thereof. The processing method of the selenium-enriched nano-tea comprises the following steps of: with freshly picked tea leaves as a raw material, carrying out sterilization, carrying out fermentation so as to culture eurotium cristatum, carrying out baking by using charcoal and so on so as to prepare the selenium-enriched tea, and then, crushing the selenium-enriched tea so as to obtain selenium-enriched nano-tea powder. Selenium-enriched fermentation bacteria are adopted for fermenting the tea according to the processing method so as to obtain the selenium-enriched tea, and thus, the prepared selenium-enriched nano-tea is capable of supplementing selenium element required for the body after being drunk every day; moreover, the selenium-enriched nano-tea and the processing method thereof are low in production cost and more suitable for industrial production.

Description

technical field [0001] The invention relates to the field of tea processing, in particular to a selenium-enriched nano-tea and a processing method thereof. Background technique [0002] Selenium is an essential trace element for the human body. Selenium participates in the synthesis of various selenium-containing enzymes and selenoproteins in the human body. Among them, glutathione peroxidase catalyzes the conversion of hydroperoxide or lipid peroxide into water or various alcohols in vivo, eliminates the attack of free radicals on biofilms, and protects biofilms from oxidative damage; Selenium can improve human immunity, promote the proliferation of lymphocytes and the synthesis of antibodies and immunoglobulins. Selenium has obvious inhibitory and protective effects on colon cancer, skin cancer, liver cancer, breast cancer and other cancers, and its intermediate metabolite methyl enol in the body has strong anticancer activity. At the same time, selenium has the effect ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23F3/14A23F3/06A23F3/10
CPCA23F3/14A23F3/06A23F3/10
Inventor 谢慧叶覃心怡谢宏山谢大高谢宏华闭燕妮
Owner 横县南方茶厂
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