| Publication No: | CN118055771 [China] | Application No: | CN202280066330 |
| Title: | Method for extracting essential oil from valeriana jatamansi | ||
| Publication Date: | 17-05-2024 | File Date: | 27-09-2022 |
| Inventor(s): | Sharma, Mohit; Kumar, Harish; Sood, Vivesh; Kumar, Rajeev | ||
| IPC Classification: | A61K 003684 | ||
| Abstract: | The invention claims a method for extracting oil from arachnoid by a supercritical fluid extraction (SFE) method with and without a co-solvent. The extraction process is carried out using carbon dioxide as supercritical fluid, at a pressure ranging from about 220 bar to 360 bar and at a temperature of about 45 °C, for comminuted arachnoid using roots/roots of different mesh sizes. In addition, the volatile fraction is separated from the supercritical fluid at a reduced pressure in the range of about 10 bar to 60 bar. Then, a polar solvent (ethanol) is used as a cosolvent to extract the same material. qualitatively comparing the essential oil obtained from steam distillation and supercritical fluid extraction. |
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