Celery Seed Oleoresin

#### Celery Seed Oleoresin. **Celery**** ****Seed**** ****Oleoresin**** **is a prepared oleoresin. It is produced by extraction of celery seed (see **Celery**** ****Seed**** ****Oil)**** **with petroleum ether or other hydrocarbon solvents or with ethyl alcohol. The latter solvent would yield an ordinary extract from a pharmaceutical point of view. The alcoholic extract has the advantage of a lower terpene content and, accordingly, a better flavor and solubility than the hydrocarbon solvent extracts. **Celery**** ****Seed**** ****Oleoresin**** **is a dark green or brownish green, viscous liquid of a very powerful odor and flavor, typical of the aroma of the seed: warm, fatty-spicy and rich, intensely sweet-herbal, radiant and tenacious. The extract is used in food products where it reproduces the aroma of the celery seed even better than does the essential oil. The oleoresin also presents the advantage of containing more of the important highboiling odor- and flavor principles, some of which are hardly distillable with steam at all. Steam distillation of celery seed is combined with significant problems. The average use level of Celery Seed Oleoresin in flavors is strongly dependent upon the nature of the end product. In straight celery flavors, the concentration of the oleoresin may be as high as 0.60 mg%; when used as a "bouquet" flavor material, its concentration in the finished product should be close to the **Minimum Perceptible **which is about 0.001 mg%. The oleoresin is only rarely used in perfumery. Its dark color is a disadvantage in many compositions. However, the great diffusive power and the outstanding odor-tenacity of this product makes it possible for the perfumer to obtain good effects from very low concentrations of celery seed oleoresin. This interesting perfume material blends very well with lavender absolute, oakmoss absolute, opopanax resinoid, deertongue or melilotus extracts, tobacco leaf absolute, melaleuca alternifolia oil, etc. and with isoeugenol, anisaldehyde, coumarin, etc. It is related olfactorily to lovage and opopanax and the synthetic materials maraniol (7-ethoxy-4-methyl coumarin) and cyclotene (2-hydroxy-3-methyl-2-cyclopenten-1-one). The oleoresin gives delightful effects in fougères, pine needle fragrances, "forest" notes, spice blends, etc. The annual production of **Celery**** ****Seed**** ****Oleoresin**** **is steadily increasing and is easily adjusted to the demand.