Ginkgo leaf extraction technology and processing method of ginkgo snow tea

An extraction process and processing method technology, applied in the extraction process and the processing field of ginkgo snow tea, can solve the problems of great difference in texture, difficult to popularize, different picking time, etc., achieve convenient carrying and drinking, improve product efficacy, and process technology advanced effects

Inactive Publication Date: 2012-08-08
徐州绿之野生物食品有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In the prior art, the health tea prepared from a single ginkgo tea or ginkgo leaves and other beneficial raw materials generally ignores the utilization effect of the active ingredients of ginkgo leaves, resulting in poor product effects, and it is difficult to achieve the expected effect. Affects consumer awareness and is difficult to promote
The reason is that the cell wall and cell membrane of Ginkgo biloba are constantly lignified during the growth period, and the texture of Ginkgo biloba varies greatly due to different picking time. The main components of Ginkgo biloba are ginkgo ketone compounds, lactone compounds, Organic ingredients such as polyisoamyl alcohol and ginkgo polysaccharides, after being made into tea, simply soaked in boiling water, it is difficult to extract their fat-s

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0034] Example 1

[0035] Ginkgo biloba extraction process:

[0036] (1) Take dried ginkgo leaves and crush them into 450 mesh fine powder; (2) Take 10 kg of fine ginkgo leaves and add 200 kg of ethanol with a concentration of 35%, stir and mix evenly, after soaking for 6 hours, heat at 65°C and set the rotation speed to 45rpm , Stir and extract twice, 3.5h for the first extraction and 2.5h for the second extraction respectively, combine the extracts, filter with 350 mesh industrial filter cloth, and centrifuge the filtrate at 8000r / min for 15min to obtain the supernatant; (3) The supernatant was finely filtered with a 0.22μm microporous membrane to obtain a fine filtrate; (4) The fine filtrate was taken to recover ethanol under reduced pressure, and concentrated to 10 g raw dried ginkgo leaves / ml concentrated juice for use.

Example Embodiment

[0037] Example 2

[0038] (1) Take dried ginkgo leaves and pulverize into 550 mesh fine powder; (2) Take 10 kg of ginkgo leaf powder and add 300 kg of ethanol with a concentration of 45%, stir and mix well, soak for 5 hours, heat at 55°C and set the speed to 35rpm, stirring and extracting twice, respectively, the first extraction for 3.5h, the second extraction for 2.5h, combine the extracts, filter with 350 mesh industrial filter cloth, the filtrate is centrifuged at 10000r / min for 15min to obtain the supernatant; (3 ) Take the supernatant and use a 0.22μm microporous filter membrane to finely filter to obtain a fine filtrate; (4) Take the fine filtrate to recover ethanol under reduced pressure, and concentrate it to 10 g raw dried ginkgo leaves / ml concentrated juice for use.

Example Embodiment

[0039] Example 3

[0040] (1) Take dried ginkgo leaves and pulverize into 650 mesh fine powder; (2) Take 10 kg of ginkgo leaf powder and add 250 kg of ethanol with a concentration of 55%, stir and mix well, soak for 4 hours, heat at 45°C and set the speed to 25rpm, stirring and extracting twice, respectively, the first extraction for 3.5h, the second extraction for 2.5h, combine the extracts, filter with 350 mesh industrial filter cloth, the filtrate is centrifuged at 9000r / min for 15min to obtain the supernatant; (3 ) Take the supernatant and use a 0.22μm microporous filter membrane to finely filter to obtain a fine filtrate; (4) Take the fine filtrate to recover ethanol under reduced pressure, and concentrate it to 10 g raw dried ginkgo leaves / ml concentrated juice for use.

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Abstract

The invention discloses a ginkgo leaf extraction technology and a processing method of ginkgo snow tea. The ginkgo leaf extraction technology is characterized by comprising the steps of: extracting ginkgo leaves to obtain a concentrated liquid; then mixing with the snow tea to form the ginkgo snow tea, wherein the mass ratio of the ginkgo leaf concentrated liquid to the snow tea is 1: (10-20). The processing method of the ginkgo snow tea, disclosed by the invention, comprises the steps of: spraying the ginkgo leaf juice on the snow tea uniformly according to a proportion to enable the ginkgo leaf juice to be absorbed fully and uniformly; drying at a constant temperature of 50+/-2 DEG C to enable a moisture content to be less than 5%; vacuum-packaging to obtain ginkgo snow tea products. The method also can comprise the steps of: crushing the snow tea into shreds of 10-20 meshes; mixing with the ginkgo leaf juice according to a proportion and enabling the ginkgo leaf juice to be absorbed fully and uniformly; drying at a constant temperature of 50+/-2 DEG C to enable the moisture content to be less than 4%; and filling the tea by using teabag packaging paper to form the ginkgo oolong teabag products with each teabag of 2.0-2.5 g. The ginkgo snow tea produced by the processing method disclosed by the invention is particularly suitable for people who have neurasthenia, cough with lung heat, exuberant irascibility, insomnia, overweight gastric fire, costive hypertension and hyperlipidemia to drink.

Description

technical field [0001] The invention relates to an extraction of ginkgo leaves and a processing method of ginkgo snow tea, in particular to an extraction process of ginkgo leaves and a processing method of ginkgo snow tea. Background technique [0002] The medical and health value of Ginkgo biloba has been revealed by scholars at home and abroad. Ginkgo biloba contains more than 20 kinds of flavonoids, the content of which is greater than 24% in the total extract, mainly including Ginkgodiketone (Cinkgetin), isoflavone (So ginkgetin), bilobetin. Ginkgo biloba also contains terpene lactones. Diterpene lactones mainly include ginkgolides (Ginkgolide) A, B, C, M, J, etc., and sesquiterpene lactones are bilobalide. In addition, it also contains phenols, 25 kinds of beneficial elements, 17 kinds of amino acids, alkaloids and so on. Modern research has the functions of improving cardiovascular and cerebrovascular functions, relieving asthma, dilating coronary arteries, anti-myoc...

Claims

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Application Information

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IPC IPC(8): A23F3/14
Inventor 张奎昌张志年张琪悦张清悦
Owner 徐州绿之野生物食品有限公司
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