Preparation method of detoxified gingko tea

A production method and technology of ginkgo tea, applied in the field of tea processing, can solve the problems of high price of ginkgo leaf extract, difficulty in exerting the efficacy of ginkgo tea, inability to promote large-scale, etc., and achieve shortened production cycle, shortened flowering time, and easy scale. The effect of chemical production

Active Publication Date: 2015-01-21
葛振刚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

What this method adopts is to remove ginkgolic acid by chemical method, and the price of ginkgo biloba extract (GBE) is expensive, and the enterprise cost is too high, and consu

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0027] 1) Preparation of leavening agent:

[0028] ① Firstly, isolate S. coronoidis from Fuzhuan tea, purify and identify it, store it on a low-temperature slant, and use PDA to expand and cultivate it for later use;

[0029] 2. prepare starter culture medium then, starter culture medium comprises the tea that tea-water ratio is 1 / 40, every 100L tea water adds bran 100kg, glucose 6kg, yeast extract powder 4kg, NaCl 0.8kg; Described starter culture medium is at 121 Sterilize for 30 minutes at a temperature of ℃ or at a pressure of 0.1-0.15 MPa;

[0030] ③The expanded and cultivated S. coronoidis prepared at a concentration of 2×10 7 ~9×10 7 Bacteria solution per mL, inoculated on the above-mentioned starter culture medium, the inoculum amount was 20ml / kg relative to the above-mentioned starter culture medium, the culture time was 8 days, the culture temperature was 26-28°C for the first three days, and 26-28°C for the next five days. 24-26°C, when the golden-yellow closed cy...

Embodiment 1

[0048] A preparation method of detoxification ginkgo tea, comprising the following steps:

[0049] 1) Preparation of leavening agent:

[0050] ① Firstly, isolate S. coronoidis from Fuzhuan tea, purify and identify it, store it on a low-temperature slant, and use PDA to expand and cultivate it for later use;

[0051] 2. prepare starter culture medium then, starter culture medium comprises the tea that tea-water ratio is 1 / 40, every 100L tea water adds bran 100kg, glucose 6kg, yeast extract powder 4kg, NaCl 0.8kg; Described starter culture medium is at 121 Sterilize for 30 minutes at a temperature of ℃ or a pressure of 0.1 MPa;

[0052] ③The expanded and cultivated S. coronoidis prepared at a concentration of 2×10 7 ~9×10 7 Bacteria solution per mL, inoculated on the above-mentioned starter medium, the inoculum amount is 20ml / kg relative to the above-mentioned starter medium, the culture time is 8 days, the culture temperature is 26°C for the first three days, and 24°C for th...

Embodiment 2

[0060] A preparation method of detoxification ginkgo tea, comprising the following steps:

[0061] 1) Preparation of leavening agent:

[0062] ① Firstly, isolate S. coronoidis from Fuzhuan tea, purify and identify it, store it on a low-temperature slant, and use PDA to expand and cultivate it for later use;

[0063] 2. prepare starter culture medium then, starter culture medium comprises the tea that tea-water ratio is 1 / 40, every 100L tea water adds bran 100kg, glucose 6kg, yeast extract powder 4kg, NaCl 0.8kg; Described starter culture medium is at 121 Sterilize for 30 minutes at a temperature of ℃ or a pressure of 0.12 MPa;

[0064] ③The expanded and cultivated S. coronoidis prepared at a concentration of 2×10 7 ~9×10 7 Bacteria liquid per mL, inoculated on the above-mentioned starter medium, the inoculum amount is 20ml / kg relative to the above-mentioned starter medium, the culture time is 8 days, the culture temperature is 27°C for the first three days, and 25°C for the...

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Abstract

The invention discloses a preparation method of detoxified gingko tea. The preparation method comprises the following steps: 1) preparing a fermenting agent, namely, separating eurotium cristatum from Fuzhuan dark tea and preparing a solid pure strain fermenting agent; 2) pretreating gingko leaves, namely, cleaning the gingko leaves, removing impurities, slitting and carrying out fixation, cooling and twisting after fixation so as to obtain raw tea; 3) blending and carrying out pile fermentation, namely, blending the raw tea of which the impurities are removed with dark raw tea, and carrying out pile fermentation on the blended tea leaves after primary steaming; 4) inoculating, namely, adding the solid pure strain fermenting agent into the tea leaves after pile fermentation and secondarily steaming and inoculating; 5) briquetting and fermenting: compressing the inoculated tea leaves into tea bricks, and putting the tea bricks into a fermentation chamber for fermenting; and 6) dehydrating and packaging: dehydrating the fermented tea bricks and dehydrating, and packaging the dehydrated tea bricks directly. The method not only can be used for effectively retaining active substances benefiting to human bodies, but also can be used for reducing the content of ginkgolic acid; the detoxified gingko tea is safe and reliable in quality, and is suitable for large-scale production and popularization.

Description

technical field [0001] The invention relates to the field of tea processing, in particular to a method for preparing detoxified ginkgo tea. Background technique [0002] Ginkgo tea is a health tea refined from ginkgo leaves. In recent years, Ginkgo tea has the functions of lowering blood fat, softening blood vessels, antagonizing platelet activating factor, improving cardiovascular and cerebrovascular circulation and antithrombotic effects. , The effect of relieving fatigue and refreshing is widely accepted and recognized by people. Ginkgo tea contains a variety of active ingredients, including flavonoids, terpenoids, polyprenols, and organic acids. However, Ginkgo tea also contains ginkgolic acid (Ginkgolic Acids, GAs), a toxic and side effect component. According to research reports, ginkgolic acid has effects such as sensitization, cytotoxicity, and liver damage to the human body. If the content of ginkgolic acid in ginkgo tea is not controlled, it will definitely bring...

Claims

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Application Information

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IPC IPC(8): A23F3/14A23F3/10
Inventor 秦俊哲任金玫
Owner 葛振刚
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