Abstract
Natural essential oils are used extensively in fragrances, flavorants, and in the food and pharmaceutical industries. During hydrodistillation, a part of the essential oil becomes dissolved in the condensate and lost as this water is discarded. In this study, carvone and limonene content recovered from hydrodistillation waste water of caraway fruit were quantified using two methods for recovering dissolved aromatic molecules from condensate water: extraction through distillation and extraction by means of a solvent. This allows for the conservation of useful molecules which are typically discarded with the waste water produced during the distillation process. The objective of this study was to quantify the carvone and limonene content recoverable from waste water derived from the distillation of caraway essential oil. The well-known Clevenger method and a simpler, more practical technique employing cyclohexane as a solvent were employed to determine the recoverable content of aromatic molecules from the hydrosol. The chemical compositions of the respective recovered extracts were compared with those of the primary oils to analyze the efficacy of these methods. Recovered extract accounted for 10 to 40% of the total oil yield. The limonene and carvone molecules recovered using these methods were quantified through gas chromatography in order to characterize the composition of the secondary extract produced.
| Translated title of the contribution | Water soluble fractions of caraway (Carum carvi L.) essential oil |
|---|---|
| Original language | Spanish |
| Pages (from-to) | 495-500 |
| Number of pages | 6 |
| Journal | Boletin Latinoamericano y del Caribe de Plantas Medicinales y Aromaticas |
| Volume | 9 |
| Issue number | 6 |
| State | Published - Nov 2010 |