Method of extracting caffeic acid and rosemarinic acid from rosemary
US12251412B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2020 |
| Grant date | Mar 18, 2025 |
| Priority date | — |
| Expiry date | Oct 30, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2236/53
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present disclosure relates to a method for extracting caffeic acid and rosmarinic acid from Rosmarinus officinalis L., and more particularly, to a method for extracting caffeic acid and rosmarinic acid from Rosmarinus officinalis L., the method comprising the steps of: (S1) preparing an extraction apparatus including an extractor for passing a solution contained in a main body unit through a filtration membrane to obtain a filtered solution, and dropping the filtered solution to the lower outside through a dropping unit connected to a lower portion of the main body unit, and a receiver located in the lower part of the extractor to collect the filtered solution that is dropped from the dropping unit; (S2) putting dried Rosmarinus officinalis L. into the main body unit, and adding a solvent to the main body unit to immerse the dried Rosmarinus officinalis L. at room temperature; and (S3) dropping a solution in which the dried Rosmarinus officinalis L. has been immersed from the dropping unit to the receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.