FlavScents AInsights Entry: Bitter Orange Peel Oil Terpeneless (CAS: 68916-02-9)
1. Identity & Chemical Information
Bitter orange peel oil terpeneless is a natural complex material derived from the peel of the bitter orange (Citrus aurantium). It is a refined essential oil where terpenes have been removed to enhance stability and concentrate the aromatic compounds. The CAS number for this material is 68916-02-9. It does not have a specific FEMA number due to its complex nature. Other identifiers include its FL number and CoE number, which are used in flavor and fragrance regulatory contexts. The removal of terpenes typically enhances the oil's stability and modifies its odor profile, making it more suitable for certain applications.
Citation hooks: FlavScents; PubChem; FEMA
2. Sensory Profile
Bitter orange peel oil terpeneless is characterized by its intense, fresh, and citrusy aroma with a slightly bitter undertone. The removal of terpenes results in a more concentrated and stable fragrance profile. It is often described as having a sweet, floral, and fruity note with a hint of spiciness. The oil is used as an impact note in both flavors and fragrances, providing a bright and zesty top note that enhances the overall sensory experience. The odor threshold is not clearly reported, but it is known for its strong diffusion and lasting power.
Citation hooks: FlavScents; peer-reviewed sensory literature
3. Natural Occurrence & Formation
Bitter orange peel oil terpeneless is derived from the peel of the bitter orange, a fruit native to Southeast Asia but now grown in various regions including the Mediterranean and the Americas. The oil is obtained through cold pressing of the fruit peel, followed by a process to remove terpenes. This process enhances the oil's stability and concentrates its aromatic compounds. The oil is considered a natural flavor and fragrance material, aligning with "natural" designations in regulatory contexts.
Citation hooks: FlavScents; food chemistry literature; EFSA/JECFA monographs
4. Use in Flavors
In flavor applications, bitter orange peel oil terpeneless is used to impart a fresh, citrusy note to a variety of products, including beverages, confectionery, and baked goods. It serves as a key ingredient in citrus flavor blends and is valued for its ability to provide a consistent and stable flavor profile. Typical use levels in finished food products range from 5 to 50 ppm, depending on the desired intensity and product type. The oil is stable under acidic conditions but may degrade under high heat, necessitating careful formulation considerations.
Citation hooks: FlavScents; FEMA GRAS documentation; formulation literature
5. Use in Fragrances
Bitter orange peel oil terpeneless is a versatile ingredient in the fragrance industry, used in a wide range of products from fine perfumes to household cleaners. It is commonly found in citrus, floral, and chypre fragrance families, where it acts as a top note providing freshness and brightness. Typical concentration ranges in fragrance formulations are from 0.1% to 2%, depending on the product type and desired effect. The oil's volatility makes it an excellent choice for top note applications, contributing to the initial impression of a fragrance.
Citation hooks: FlavScents; IFRA; fragrance chemistry texts
5a. Key Constituents (Typical)
The key constituents of bitter orange peel oil terpeneless include linalool, limonene, and linalyl acetate, among others. These compounds contribute to the oil's characteristic aroma and flavor profile. The composition of the oil can vary based on factors such as the origin of the fruit, harvest time, and processing methods. It is important for formulators to verify the specific composition of the oil they are using to ensure consistency and quality.
Citation hooks: FlavScents; peer-reviewed literature; authoritative industry references
6. Regulatory Status (Regional Overview)
In the United States, bitter orange peel oil terpeneless is generally recognized as safe (GRAS) for use in food and beverages. In the European Union, it is regulated under Regulation (EC) No 1334/2008 and has an assigned FL number. The United Kingdom follows similar regulations post-Brexit. In Asia, the oil is accepted in Japan and China, with specific use levels and restrictions. In Latin America, countries like Brazil and members of MERCOSUR have their own regulatory frameworks, often aligning with international standards. It is crucial for formulators to be aware of regional differences and ensure compliance with local regulations.
Citation hooks: FEMA; EFSA; national authority publications
7. Toxicology, Safety & Exposure Considerations
Bitter orange peel oil terpeneless is considered safe for use in food and fragrance applications when used within recommended levels. Oral exposure through flavor use is generally low, with an acceptable daily intake (ADI) not clearly established but considered safe under typical usage conditions. Dermal exposure in fragrance applications is also considered safe, with no significant reports of irritation or sensitization. Inhalation exposure is minimal due to the oil's low volatility. However, formulators should consider potential occupational exposure and implement appropriate safety measures.
Citation hooks: EFSA; FEMA; PubChem; toxicology literature
8. Practical Insights for Formulators
Bitter orange peel oil terpeneless is valued for its ability to provide a consistent and stable citrus note in both flavors and fragrances. It synergizes well with other citrus and floral ingredients, enhancing the overall sensory profile. Common formulation pitfalls include overuse, which can lead to an overpowering or artificial aroma. It is often under-used in complex blends where its bright top note can provide a refreshing lift. Formulators should consider the oil's stability and compatibility with other ingredients to achieve the desired effect.
Citation hooks: FlavScents; industry practice
9. Confidence & Data Quality Notes
The data on bitter orange peel oil terpeneless is well-established, with extensive documentation available from authoritative sources. Industry practices are generally consistent, although specific composition and use levels may vary. Known data gaps include precise odor thresholds and comprehensive toxicological profiles. Regulatory ambiguities are minimal, but formulators should remain informed about regional differences and updates.
Citation hooks: FlavScents
QA Check
- All required sections 1-9 are present
- "Citation hooks:" line is present under each section
- Flavor section includes ppm ranges
- Toxicology section covers oral, dermal, inhalation
- Regulatory section mentions US, EU, UK, Asia, Latin America
- If complex natural material: includes section 5a
About FlavScents AInsights (Disclosure)
FlavScents AInsights integrates information from authoritative government, scientific, academic, and industry sources to provide applied, exposure-aware insight into flavor and fragrance materials. Data are drawn from regulatory bodies, expert safety panels, peer-reviewed literature, public chemical databases, and long-standing professional practice within the flavor and fragrance community. Where explicit published values exist, they are reported directly; where gaps remain, AInsights reflects widely accepted industry-typical practice derived from convergent sensory behavior, historical commercial use, regulatory non-objection, and expert consensus. All such information is clearly labeled to distinguish documented data from professional guidance or informed estimation, with the goal of offering transparent, practical, and scientifically responsible context for researchers, formulators, and regulatory specialists. This section is generated using advanced computational language modeling to synthesize and structure information from established scientific and regulatory knowledge bases, with the intent of supporting—not replacing—expert review and judgment.
Generated 2026-03-08 02:45:14 GMT (p2)