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Ginkgo leaf extraction process and method for processing raw ginkgo Pu'er tea

A technology of raw Pu-erh tea and extraction process, applied in the direction of pre-extraction tea treatment, etc., can solve the problems of great difference in texture, difficult to popularize, different picking time, etc., to achieve convenient carrying and drinking, improve product efficacy, and advanced processing technology. Effect

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

[0016] In the prior art, health teas prepared from a single ginkgo tea or a combination of ginkgo leaves and tea leaves, or a combination of ginkgo leaves and other beneficial raw materials generally ignore the utilization effect of the active ingredients of ginkgo leaves, resulting in poor product effects. It is difficult to achieve the expected effect, which affects the awareness of consumers 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-soluble active ingredients, which is the main reason for the unsatisfactory effect after drinking
The 2nd, existing processing technology is unreasonable, only is simple tea-making method, is difficult to reach the medical curative effect of ginkgo leaf, can not realize the medical value of existing ginkgo tea
[0018] As the cardiovascular and cerebrovascular health problems of middle-aged and elderly people are getting more and more attention, improving the health value of ginkgo biloba and combining the excellent characteristics of raw Pu'er tea should be able to better solve the above problems, especially for people with "three highs" The crowd of people, can bring into play special health-care effect, but there is no relevant report yet in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Ginkgo biloba extraction process:

[0041] (1) Take dried ginkgo leaves and grind them into 450 mesh fine powder; (2) Take 10 kg of ginkgo leaf fine powder and add 200 kg of ethanol with a concentration of 35%, stir and mix evenly, after soaking for 6 hours, heat at 65°C, set the speed at 45rpm , stirred and extracted twice, respectively, the first extraction was 3.5h, the second extraction was 2.5h, the combined extracts were filtered with 350 mesh industrial filter cloth, and the filtrate was centrifuged at 8000r / min for 15min to obtain the supernatant; (3) Take the supernatant and filter it with a 0.22 μm microporous membrane to obtain the fine filtrate; (4) Take the fine filtrate to recover ethanol under reduced pressure, concentrate to 10 g raw and dried ginkgo leaves / ml concentrated juice, and set aside.

Embodiment 2

[0043] (1) Take dried ginkgo leaves and crush them into 550 mesh fine powder; (2) Take 10 kg of ginkgo leaf fine powder and add 300 kg of ethanol with a concentration of 45%, stir and mix evenly, after soaking for 5 hours, heat at 55°C, set the speed at 35rpm, stirred and extracted twice, respectively, the first extraction was 3.5h, the second extraction was 2.5h, the combined extracts were filtered with 350 mesh industrial filter cloth, and the filtrate was centrifuged at 10000r / min for 15min to obtain the supernatant; (3 ) Take the supernatant and filter it with a 0.22 μm microporous membrane to obtain the fine filtrate; (4) Take the fine filtrate to recover ethanol under reduced pressure, concentrate to 10 g raw and dried ginkgo leaves / ml concentrated juice, and set aside.

Embodiment 3

[0045] (1) Take dried ginkgo leaves and crush them into 650-mesh fine powder; (2) Take 10 kg of ginkgo leaf fine powder and add 250 kg of ethanol with a concentration of 55%, stir and mix evenly, soak for 4 hours, heat at 45°C, and set the speed at 25rpm, stirred and extracted twice, respectively, the first extraction was 3.5h, the second extraction was 2.5h, the combined extracts were filtered with 350 mesh industrial filter cloth, and the filtrate was centrifuged at 9000r / min for 15min to obtain the supernatant; (3 ) Take the supernatant and filter it with a 0.22 μm microporous membrane to obtain the fine filtrate; (4) Take the fine filtrate to recover ethanol under reduced pressure, concentrate to 10 g raw and dried ginkgo leaves / ml concentrated juice, and set aside.

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Abstract

The invention discloses a ginkgo leaf extraction process and a method for processing raw ginkgo Pu'er tea, which are characterized in that the raw ginkgo Pu'er tea is prepared by extracting ginkgo leaves to obtain concentrated juice and then preparing the concentrated juice together with the raw Pu'er tea; and the mass ratio of the ginkgo leave concentrated juice to the raw Pu'er tea is 1:(20-30). The method for processing the raw ginkgo Pu'er tea comprises the following steps of: uniformly spraying the ginkgo leave juice on the raw Pu'er tea according to a proportion, so that the ginkgo leave juice is sufficiently and uniformly adsorbed; drying at the constant temperature of 55+ / -2 DEG C, so that the water content is below 5%; and carrying out vacuum packaging to obtain the raw ginkgo Pu'er tea. The method for processing the raw ginkgo Pu'er tea further comprises the following steps of: grinding the raw Pu'er tea into 10-30-mesh powder; matching the powder with the ginkgo leave juice according to a proportion; and packaging the mixture into raw ginkgo Pu'er tea bags, each including 2.5-5.0 g, by using tea bag packaging papers. The raw ginkgo Pu'er tea disclosed by the invention has the characteristic of selecting raw ginkgo tea as the tea-based raw material, has the functions of supporting digestion, enhancing appetite, dispelling the effects of alcohol, losing weight, dispelling wind-evil, detoxifying, clearing minds and the like, and can satisfy selective application of people.

Description

technical field [0001] The invention relates to a method for extracting ginkgo leaves and processing raw ginkgo pu'er tea, in particular to an extraction process for ginkgo leaves and a processing method for raw ginkgo pu'er 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, an...

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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