FlavScents AInsights Entry for Grapefruit Oil C.P. Israel (CAS: 8016-20-4)
1. Identity & Chemical Information
Grapefruit oil c.p. Israel is a natural complex material derived from the peel of grapefruits (Citrus paradisi). It is not a single chemical compound but a mixture of various constituents. The CAS number for grapefruit oil is 8016-20-4. While it does not have a specific FEMA number due to its complex nature, it is recognized under various identifiers in flavor and fragrance databases. The composition of grapefruit oil can vary significantly depending on the origin, harvest time, and processing methods.
Citation hooks: FlavScents; PubChem; FEMA
2. Sensory Profile
Grapefruit oil is characterized by its fresh, citrusy, and slightly bitter aroma, which is reminiscent of the fruit itself. It has a high intensity and excellent diffusion, making it a popular choice for imparting a bright, zesty note in both flavors and fragrances. The oil is often used as an impact note due to its distinctive and recognizable scent. Specific odor and taste thresholds are not well-documented, but it is known for its ability to enhance the freshness and realism of citrus profiles.
Citation hooks: FlavScents; peer-reviewed sensory literature
3. Natural Occurrence & Formation
Grapefruit oil is naturally sourced from the peel of the grapefruit, a hybrid fruit believed to have originated in Barbados as a cross between the sweet orange and pomelo. The oil is typically obtained through cold pressing, a process that preserves its volatile compounds. Grapefruit oil is considered a natural flavor and fragrance material, aligning with consumer preferences for natural products.
Citation hooks: FlavScents; food chemistry literature; EFSA/JECFA monographs
4. Use in Flavors
In flavor applications, grapefruit oil is used to impart a fresh, citrusy note to a variety of products, including beverages, confectionery, and baked goods. It serves as both an impact note and a background modifier, enhancing the overall citrus profile. Typical use levels in finished products range from 10 to 100 ppm, depending on the desired intensity and product type. Grapefruit oil is relatively stable under acidic conditions but can be prone to oxidation, necessitating careful formulation and storage.
Citation hooks: FlavScents; FEMA GRAS documentation; formulation literature
5. Use in Fragrances
Grapefruit oil is a versatile ingredient in the fragrance industry, commonly used in the creation of fresh, citrusy perfumes and personal care products. It is often employed as a top note due to its high volatility and bright, uplifting scent. Typical concentration ranges in fragrance formulations vary, but it is generally used at low levels to provide a natural citrus character. Its role can range from a primary impact note to a subtle modifier, depending on the formulation.
Citation hooks: FlavScents; IFRA; fragrance chemistry texts
5a. Key Constituents (Typical)
The key constituents of grapefruit oil include limonene, which can comprise up to 90% of the oil, along with other compounds such as myrcene, linalool, and alpha-pinene. The exact composition can vary based on factors such as geographic origin and extraction method. These constituents contribute to the oil's characteristic aroma and flavor profile.
Citation hooks: FlavScents; peer-reviewed literature; authoritative industry references
6. Regulatory Status (Regional Overview)
In the United States, grapefruit oil 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 its use is permitted in flavorings. The UK follows similar regulations post-Brexit. In Asia, grapefruit oil is accepted in countries like Japan and China, though specific regulations may vary. In Latin America, countries such as Brazil recognize its use in both flavors and fragrances, aligning with international standards.
Citation hooks: FEMA; EFSA; national authority publications
7. Toxicology, Safety & Exposure Considerations
Grapefruit oil is considered safe for oral exposure when used within recommended levels, with no specific ADI or MSDI established. Dermal exposure in fragrance applications is generally safe, though it may cause irritation or sensitization in sensitive individuals. IFRA provides guidelines to mitigate these risks. Inhalation exposure is typically low risk, but occupational safety measures should be observed during handling. The risk profiles for food and fragrance applications are similar, with primary concerns related to dermal sensitization.
Citation hooks: EFSA; FEMA; PubChem; toxicology literature
8. Practical Insights for Formulators
Grapefruit oil is valued for its ability to impart a fresh, authentic citrus note. It synergizes well with other citrus oils and can enhance the overall brightness of a formulation. Common pitfalls include overuse, which can lead to a bitter or overpowering profile, and oxidation, which can degrade the oil's quality. Formulators should consider antioxidant additives to preserve its freshness.
Citation hooks: FlavScents; industry practice
9. Confidence & Data Quality Notes
The data on grapefruit oil is well-established, with extensive documentation in flavor and fragrance literature. While industry practices are generally consistent, some variability exists due to natural composition differences. Regulatory guidelines are clear, though formulators should remain aware of regional variations.
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
- Includes section 5a for complex natural material
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 2026-08-29 09:44:28 GMT (p2)
