Macadamia integrifolia whitening extract and preparation method thereof
US11583492B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2022 |
| Grant date | Feb 21, 2023 |
| Priority date | — |
| Expiry date | May 6, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A40/20
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A Macadamia integrifolia whitening extract and a preparation method thereof are disclosed. The preparation method includes: S1: carrying out a hot extraction on a crushed Macadamia integrifolia green peel using an ethanol solution as an extraction solvent to obtain a crude green peel extract; then enzymatically treating the crude green peel extract using a snailase to obtain a enzymatic hydrolysate; finally extracting the enzymatic hydrolysate using a petroleum ether, and taking an aqueous phase to obtain a green peel extract; S2: carrying out a hot extraction on crushed Sichuan lovase rhizome decoction pieces using an ethanol solution as an extraction solvent to obtain a Sichuan lovase rhizome extract; S3: dispersing the green peel extract and the Sichuan lovase rhizome extract in water to obtain a whitening extract.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.