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Method of producing ginseng leaf extract including ginsenosides Rg6, Rk3, and Rh4 in increased amounts from ginseng leaf and use of the ginseng leaf extract
US11273192B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11273192-B2 |
| Application number | US-201916428626-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 31, 2019 |
| Priority date | Jun 1, 2018 |
| Publication date | Mar 15, 2022 |
| Grant date | Mar 15, 2022 |
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Abstract
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Provided are a method of efficiently producing a ginseng leaf extract including rare ginsenosides Rg6, Rk3, and Rh4 in increased amounts, and use of a ginseng leaf extract produced by the method.
First claim
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What is claimed is: 1. A method of producing a Panax genus plant extract, the method comprising performing microwave irradiation of leaves of a plant in the genus Panax or an extract of the leaves, wherein the Panax genus plant extract comprises rare ginsenosides Rg6, Rk3, and Rh4 at a weight of 20% or more with respect to the weight of total ginsenosides obtained, and the total ginsenosides comprise Rg1, Re, Rh1, Rg2, Rb1, Rc, Rb2, Rd, Rg6, Rk3, Rh4, S-Rg3, R-Rg3, Rk1, and Rg5, wherein the microwave irradiation is performed at a pressure of 2 atm to 100 atm, at a temperature of 110° C. to 130° C., for 50 minutes to 90 minutes, and at a pH of 5.0 to 6.0. 2. The method of claim 1 , wherein, in reference to the leaves of a plant in the genus Panax or the extract of the leaves, the extract of the leaves comprises ginsenosides Rg1 and Re at a weight of 55% or more with respect to the weight of total ginsenosides. 3. The method of claim 1 , wherein, in reference to the leaves of a plant in the genus Panax or the extract of the leaves, the extract of the leaves is an extract of the leaves of a plant in the genus Panax obtained by extraction with water, a C 1 -C 6 alcohol, or a mixture thereof. 4. The method of claim 1 , wherein the plant in the genus Panax comprises Panax ginseng, Panax quinquefolius, Panax notoginseng, Panax japonica, Panax Panax pseudoginseng, Panax vietnamensis , or a combination thereof. 5. The method of claim 1 , wherein the microwave irradiation is performed on the leaves of a plant in the genus Panax or the extract of the leaves, contained in water, a C 1 -C 6 alcohol, or a mixed solution of water and a C 1 -C 6 alcohol.
Assignees
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Classifications
Extraction of the material · CPC title
Magnoliopsida [dicotyledons] · CPC title
- A61K36/258Primary
Panax (ginseng) · CPC title
having an effect on skin health and hair or coat · CPC title
Anti-ageing preparations · CPC title
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- What does patent US11273192B2 cover?
- Provided are a method of efficiently producing a ginseng leaf extract including rare ginsenosides Rg6, Rk3, and Rh4 in increased amounts, and use of a ginseng leaf extract produced by the method.
- Who is the assignee on this patent?
- Korea Inst Sci & Tech
- What technology area does this patent fall under?
- Primary CPC classification A61K36/258. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Mar 15 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).