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Dendrobium officinale leaf extract with uric acid reducing function and application of dendrobium officinale leaf extract

A technology of dendrobium candidum and leaf extract, which is applied in the field of medicine, can solve the problems that dendrobium candidum leaves can only be used for waste treatment and ordinary food use, and achieve the effects of reducing waste, expanding medicinal resources, and reducing serum uric acid levels

Inactive Publication Date: 2015-07-01
ZHEJIANG CHINESE MEDICAL UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The leaves of Dendrobium candidum are not currently used as medicinal parts, nor can they be used as ordinary food; but the yield is large. Studies have shown that the leaves of Dendrobium candidum and the medicinal materials (stems) of Dendrobium candidum contain many similar chemical components and have some similar functions. However, the huge output of Dendrobium officinale leaves can only be treated as waste

Method used

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  • Dendrobium officinale leaf extract with uric acid reducing function and application of dendrobium officinale leaf extract

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Dendrobium officinale leaves were washed and dried, crushed mechanically, added 5 times volume percentage concentration of 30% ethanol solution, extracted 3 times, 1 hour each time, combined filtrates, concentrated under reduced pressure to obtain Dendrobium officinale leaf extract, 4 ° C refrigerator Refrigerate and set aside.

Embodiment 2

[0013] Dendrobium officinale leaves were washed and dried, crushed mechanically, added 15 times the amount of water, extracted twice for 2 hours each time, combined filtrates, concentrated under reduced pressure to obtain Dendrobium officinale leaf extracts, and refrigerated at 4°C for later use.

Embodiment 3

[0015] Dendrobium officinale leaves were washed and dried, crushed mechanically, added 20 times the amount of 15% ethanol solution, extracted for 3 hours, filtered, and the filtrate was concentrated under reduced pressure to obtain Dendrobium officinale leaf extract, which was refrigerated at 4°C for later use.

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Abstract

The invention discloses a dendrobium officinale leaf extract with a uric acid reducing function and application of the dendrobium officinale leaf extract. The dendrobium officinale leaf extract is prepared through the following steps: cleaning and drying the dendrobium officinale leaves; mechanically pulverizing; carrying out reflux extraction by a 0-30V% ethanol solution for 1-3 times, wherein the time of each reflux extraction is 1-3h and the dosage of each reflux extraction is 5-20 times of the medicine weight; combining the filtrates; recovering the ethanol; and carrying out vacuum concentration to obtain the dendrobium officinale leaf extract. The dendrobium officinale leaf extract can be used for preventing medicines or food for preventing and treating hyperuricemia; the dendrobium officinale leaf extract relies on the dendrobium officinale leaves to develop the effects of the dendrobium officinale leaves, so that the new medicinal resources of the dendrobium officinale are expanded and the resource waste is decreased at the same time.

Description

technical field [0001] The invention belongs to the technical field of medicine, and in particular relates to a dendrobium officinale leaf extract with the effect of lowering uric acid and its application. Background technique [0002] The incidence of gout and hyperuricemia has increased significantly in recent years, and the incidence of hyperuricemia has reached 10%. Diseases caused by metabolic disorders. A large number of patients with hyperuricemia have damaged the kidneys and other organs before gout occurs. One of the causes of clinically unexplained kidney stones and renal failure is the long-term increase in blood uric acid (UA). Therefore, patients with significantly elevated UA must be treated for uric acid reduction. Many studies in recent years have shown that hyperuricemia is associated with the occurrence of hypertension, impaired glucose tolerance, central obesity, lipid metabolism disorders, and atherosclerosis. With the development of social economy and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K36/8984A23L1/29A61P19/06A61K127/00A23L33/00
Inventor 吕圭源陈素红胡秀雷珊珊
Owner ZHEJIANG CHINESE MEDICAL UNIVERSITY
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