Total flavonoid extract from Gynura formosana Kitam., preparation method thereof, and use of same in treating non-alcoholic fatty liver disease
US11266704B2 · kind B2 · utility
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Key dates
| Filing date | Mar 17, 2020 |
| Grant date | Mar 8, 2022 |
| Priority date | — |
| Expiry date | Mar 17, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2236/39
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A total flavonoid extract from Gynura formosana Kitam., comprising 80-85% of rutin. A preparation method comprises selecting a complex enzyme consisting of a specific composition and ratio of enzymes for enzymatic hydrolysis, extracting and concentrating by a macroporous resin, and separating and purifying by a macroporous resin. The extract has therapeutic effect on non-alcoholic fatty liver disease.
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