In temperate countries, celery is grown for its seeds. Actually very small fruit, these “seeds” yield a valuable essential oil that is used in the perfume industry. The oil contains the chemical compound apiole. It is Steam distilled from the fruits of Apium Graveolens cultivated in France, India, Holland, Hungary, China and U.S.A.. tsca definition 2008: extractives and their physically modified derivatives. apium graveolins, umbelliferae.
Celery Seed Essential Oil CAS 8015-90-5
Celery Seed Oil is a pale yellow to orange yellow liquid. Its odor is spicy-warm, sweet and rich, “soup-like”, longlasting and powerful, slightly fatty, typical of the odor of the seed (fruit) but less fresh than the odor of the celery plant. The flavor is equally warm and spicy, somewhat burning and very powerful. Celery seed oil is one of the most diffusive odors and one of the most penetrating flavors. The average use level of this oil in flavors would be somewhere between 0.05 and 0.50 mg%, but the Minimum Perceptible is incredibly low: 0.001 to 0.002 mg%. In other words, the typical celery flavor is perceptible in a dilution of one part of celery seed oil in one hundred million parts of a neutral liquid medium.
Arctander, Steffen . Perfume and Flavor Materials of Natural Origin (p. 178).