What is Ocimene?
Ocimene (CAS Number 13877-91-3) is a monoterpene, a class of naturally occurring hydrocarbons with ten carbon atoms. It exists in three isomeric forms and is characterized by a pleasant herbal, woody, and slightly fruity aroma. The compound is found naturally in numerous plants including basil, hops, mint, parsley, and various other botanical sources used in culinary applications.
Common Uses
Ocimene is used as a flavoring agent and adjuvant in the food industry to enhance or modify the taste and aroma profiles of various products. It is particularly valued in beverages, baked goods, confectionery, and dairy products where herbal or botanical notes are desired. The compound's natural occurrence in culinary herbs makes it a popular choice for creating authentic flavor profiles in both natural and synthetic flavoring formulations. Due to its volatile nature, it is typically used in small concentrations to achieve the desired sensory effect.
Safety Assessment
Ocimene has been the subject of toxicological evaluation as a naturally occurring flavor compound. In studies examining its safety profile, the compound has demonstrated low acute toxicity in animal models. The volatile nature of ocimene means that significant absorption through the gastrointestinal tract is limited when consumed in food at typical flavoring levels. No adverse events have been reported to the FDA related to ocimene consumption in food products, and no food recalls have been associated with this ingredient.
The European Food Safety Authority (EFSA) has evaluated similar monoterpenes used in flavoring applications. While ocimene itself may not have undergone formal EFSA assessment, related compounds in this chemical class have generally been recognized as presenting minimal safety concerns when used at standard flavoring concentrations. The use levels in food are typically well below those associated with observable adverse effects in toxicological studies.
Regulatory Status
Ocimene is not currently designated as GRAS (Generally Recognized as Safe) by the FDA. However, this classification does not indicate that the substance is unsafe; rather, it reflects that formal GRAS approval has not been pursued or completed through the established FDA process. The lack of GRAS status means that ocimene's use in food products may be subject to regulations governing color additives and other food ingredients depending on the product category and intended use.
The compound's regulatory standing varies internationally. In the European Union, many monoterpenes used in flavoring applications are permitted under Regulation (EC) No 1334/2008. Companies using ocimene in food products should verify compliance with local regulatory requirements in their specific jurisdictions.
Key Studies
Toxicological evaluation of ocimene and related monoterpenes has included acute oral toxicity assessments, showing the compound to have relatively low systemic toxicity. Studies on monoterpene flavor compounds have consistently demonstrated that their volatile nature limits bioavailability when used in food products at flavoring levels. Dermally, ocimene—like many essential oil components—may cause irritation at high concentrations, but typical food use levels present no such concern.
The absence of adverse event reports and recalls related to ocimene use in food, combined with the compound's natural occurrence in commonly consumed herbs and spices, suggests a favorable safety profile for its application as a flavoring agent within established use levels.