| cohobation |
When rose oil is extracted during water distillation, the one main constituent - phenyl ethyl alcohol - dissolves into the water of the distillation still and does not form part of the essential oil that is so extracted. The oil is not whole, as it is deficient in the rose-smelling ingredient - and in order to produce a "complete" oil, the phenyl ethyl alcohol needs to be distilled from the water in which it dissolved and added back to the "incomplete oil". ...
출처: stores.ebay.com/Natures-Inventory/Aromatherapy-Glo...
|
|---|