Method for extracting cinnamon oil
US9994794B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2016 |
| Grant date | Jun 12, 2018 |
| Priority date | — |
| Expiry date | Dec 7, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11B9/027
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention discloses a method for extracting cinnamon oil; firstly, a cinnamon powder is mixed and conditioned with an aqueous solution of sodium salts, and the conditioned cinnamon powder is obtained thereafter; subsequently, the conditioned cinnamon powder obtained was frozen and then rapidly thawed, and the thawed cinnamon powder is obtained thereafter; finally, after the thawed cinnamon powder is mixed with a gaseous solvent, pressurized liquid extraction is performed, and then after separation the cinnamon oil is obtained. The method for extracting cinnamon oil from cinnamon at a low temperature adds an aqueous solution of sodium salts to condition the cinnamon powder, uses a slow freezing process and a rapid thawing process, and finally uses a gaseous solvent, which may gasify without heating to be separated from the extract; the extraction process is kept away from air, and the heat-sensitive components are not damaged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.