What is D-limonen-10-ol?
D-limonen-10-ol (CAS Number: 38142-45-9) is a synthetic flavoring compound classified as a derivative of limonene, a monoterpene alcohol found naturally in citrus fruits and other plants. The compound is produced through chemical synthesis and is used primarily as a flavoring agent or adjuvant in the food industry. Its chemical structure allows it to contribute citrus, fruity, and woody flavor profiles to food and beverage applications.
Common Uses
D-limonen-10-ol is employed in the formulation of flavored food products where citrus or fruity notes are desired. These applications typically include:
- Beverage flavoring in soft drinks and juice drinks
- Confectionery and candy formulations
- Baked goods and dessert products
- Dairy products such as flavored yogurts and ice cream
- Savory snack seasonings
As a flavoring agent, it is used in very small quantities—typically measured in parts per million—to achieve the desired sensory profile without contributing significantly to the nutritional composition of the final product.
Safety Assessment
D-limonen-10-ol has not been designated as Generally Recognized as Safe (GRAS) by the FDA. However, this designation status does not necessarily indicate safety concerns. The GRAS determination is a specific regulatory classification that requires substantial scientific evidence and is not always pursued for all flavoring compounds. Many flavoring agents function in food without GRAS status through alternative regulatory pathways.
According to FDA records, there have been zero reported adverse events associated with D-limonen-10-ol. Additionally, no recalls have been issued involving this compound. These data suggest no identified safety issues in practical use, though the absence of adverse event reports reflects its limited use and the inherent challenges in attribution when compounds appear in complex food matrices.
The safety profile of structurally related compounds, particularly limonene and other citrus-derived flavoring agents, generally demonstrates low toxicity in typical food use levels. However, D-limonen-10-ol as a specific chemical entity has limited independent safety literature.
Regulatory Status
In the United States, D-limonen-10-ol may be used as a flavoring ingredient under FDA regulations governing food additives and flavoring substances. While not GRAS-designated, it can be used as a food additive through the food contact substance notification process or under the indirect food additive regulations, depending on its application.
The European Food Safety Authority (EFSA) maintains separate approval procedures for flavoring compounds in the European Union. The regulatory status in the EU may differ from that in the United States.
Because this is a synthetic flavoring agent used in very small quantities, it does not require quantitative food labeling in most jurisdictions when present below certain threshold levels, though it may be listed in ingredient statements as "artificial flavoring" or under specific flavor compound names depending on regulations.
Key Studies
Published independent toxicological studies specific to D-limonen-10-ol are limited in the scientific literature. The development and safety assessment of this compound likely occurred through internal manufacturer testing and regulatory submissions, with data not necessarily published in peer-reviewed journals.
Related compounds such as limonene have been extensively studied, with general consensus supporting their safety in food applications at typical use levels. These compounds have been used in food and cosmetic products for decades without widespread safety concerns at consumer exposure levels.
Further research and transparency regarding the specific toxicological profile, metabolic fate, and long-term safety data for D-limonen-10-ol would enhance the available scientific evidence base, though the absence of reported adverse events suggests no acute safety signals have emerged from its use.