What is Lime, Oil, Terpeneless?
Lime, Oil, Terpeneless (CAS Number 68916-84-7) is a processed essential oil extracted from Persian lime fruit (Citrus aurantifolia), with the volatile terpene components removed through distillation or solvent extraction. The removal of terpenes—organic compounds that readily oxidize and degrade—creates a more stable, shelf-stable flavoring ingredient. The resulting product retains the characteristic lime flavor compounds while offering improved shelf life and consistency in food applications.
This ingredient is classified as a natural flavoring agent derived from botanical sources and is used in minute quantities in food manufacturing.
Common Uses
Lime, Oil, Terpeneless is primarily employed in:
- Flavored beverages (soft drinks, juices, cocktail mixers, flavored water)
- Confectionery products (hard candies, gummies, chocolate)
- Dairy products (yogurts, ice cream, flavored milk)
- Baked goods and snacks
- Condiments and sauces
- Alcoholic beverages
The terpeneless form is preferred in many commercial applications because it provides more stable flavor delivery and has a longer shelf life than whole lime oil, which can oxidize and lose potency during storage.
Safety Assessment
Lime, Oil, Terpeneless has not been formally evaluated or approved as GRAS (Generally Recognized as Safe) by the FDA. However, this designation does not indicate safety concerns—rather, it reflects that formal GRAS notification has not been submitted or completed for this specific ingredient.
Historically, citrus oils have been used in food for centuries and are generally recognized as safe at typical use levels. The FDA's database shows no adverse events or recalls associated with this ingredient. Whole lime oil and lime juice are widely used food ingredients without significant safety issues reported.
Like all essential oils and concentrated flavorings, lime oil should only be used in appropriate food-grade quantities. Undiluted essential oils are not suitable for direct consumption. The terpeneless form, being more stable and concentrated in flavor compounds, requires careful handling to ensure proper dilution in food products.
Individuals with citrus sensitivities or allergies should be aware this ingredient is present in products containing it, as it may trigger reactions in sensitive populations—though such reactions are uncommon.
Regulatory Status
In the United States, lime flavoring agents, including terpeneless varieties, are permitted for use as flavoring agents in food under 21 CFR § 182.60, which allows natural flavoring substances generally recognized as safe for their intended use.
The European Union includes lime oil (terpeneless) on the list of approved natural flavoring substances (Commission Regulation EC 1334/2008), recognizing it as acceptable for use in food.
The ingredient appears in various food databases and is commercially available for use by food manufacturers in both North America and Europe.
Key Studies
Limited published research specifically addresses terpeneless lime oil. However, scientific literature on citrus essential oils generally demonstrates:
- Citrus oils are composed primarily of d-limonene and other monoterpenes, plus additional flavor compounds
- The removal of terpenes concentrates non-volatile flavor and aroma compounds including aldehydes, esters, and organic acids
- Citrus oils have been used safely in food for decades without documented toxicity concerns at typical food use levels
- Removal of terpenes increases oxidative stability, reducing potential for degradation products during storage
No specific toxicological studies on terpeneless lime oil were identified in publicly available scientific literature, reflecting both its long history of safe use and its minor role as a trace ingredient in food.