Stable peppermint oil having reduced pulegone content and method of producing the same
US5047251A · kind A · utility
6Cited by
1References
10Claims
0Family size
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Key dates
| Filing date | May 9, 1989 |
| Grant date | Sep 10, 1991 |
| Priority date | — |
| Expiry date | May 9, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11B9/022
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Crystal-clear peppermint oil maintaining its noble character and having a reduced pulegone content, enhanced menthone and menthol content, and improved stability against menthofuran oxidation breakdown is produced by a stereospecific method of reduction by hydrogenation of pulegone in situ using a saturated aqueous solution of sodium sulfite in the presence of glacial acetic acid at approximately neutral pH.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.