Microencapsulation method for improving stability of anthocyanin, product therefrom and use thereof
US12343433B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2021 |
| Grant date | Jul 1, 2025 |
| Priority date | — |
| Expiry date | Jan 28, 2044 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2311/2676
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention discloses a microencapsulation method for improving stability of anthocyanin, a product therefrom and use thereof. A preparation method of anthocyanin microcapsules includes: (1) taking sodium alginate as a wall material, adding sodium alginate and calcium carbonate into water, and swelling for 1-2 h to obtain a wall material gel system; (2) taking anthocyanin prepared by a special process as a core material, and fully and uniformly mixing the wall material gel system with an anthocyanin solution to obtain a water phase; (3) mixing Span80 and vegetable oil to obtain an oil phase, mixing the water phase with the oil phase, and magnetically stirring for emulsifying to obtain a W/O emulsion; and (4) adjusting the pH of the W/O emulsion to be acidic, mixing the W/O emulsion with a salt buffer solution, standing for 1-2 h, and then separating the oil phase and the water phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.