FlavScents AInsights Entry: Curled Parsley Leaf Oil (CAS: 8000-68-8)
1. Identity & Chemical Information
Curled parsley leaf oil, derived from the leaves of Petroselinum crispum, is a complex natural material. It is not a single chemical compound but a mixture of various constituents. The CAS number for curled parsley leaf oil is 8000-68-8. While it does not have a specific FEMA number, it is recognized in the flavor and fragrance industry for its unique profile. The composition of this essential oil can vary significantly depending on the geographical origin, harvest time, and processing methods.
Citation hooks: FlavScents; PubChem; FEMA
2. Sensory Profile
Curled parsley leaf oil is characterized by a fresh, green, and herbaceous aroma with a slightly spicy undertone. It is often described as having a moderate intensity and a crisp, clean diffusion. The oil is primarily used as an impact note in formulations, providing a natural and authentic herbal character. Specific odor thresholds are not well-documented, but its sensory role is typically as a modifier or enhancer in both flavor and fragrance applications.
Citation hooks: FlavScents; peer-reviewed sensory literature
3. Natural Occurrence & Formation
Curled parsley leaf oil is naturally sourced from the leaves of the parsley plant, Petroselinum crispum, which is widely cultivated in Europe, North America, and parts of Asia. The oil is obtained through steam distillation of the fresh or partially dried leaves. As a natural product, it qualifies for "natural flavor" or "natural fragrance" designations, depending on the extraction and processing methods used.
Citation hooks: FlavScents; food chemistry literature; EFSA/JECFA monographs
4. Use in Flavors
In flavor applications, curled parsley leaf oil is used to impart a fresh, herbal note to a variety of food products, including soups, sauces, and dressings. It serves as a functional component in flavor systems, enhancing the authenticity and complexity of herbal profiles. Typical use levels in finished food products range from 1 to 10 ppm, with variations depending on the desired intensity and the specific application. The oil is relatively stable under normal processing conditions but may degrade under prolonged exposure to heat and light.
Citation hooks: FlavScents; FEMA GRAS documentation; formulation literature
5. Use in Fragrances
Curled parsley leaf oil is utilized in fragrance formulations for its fresh, green, and slightly spicy aroma. It is commonly found in herbal and green fragrance families and is used in personal care products, household cleaners, and air fresheners. The oil acts as a top to middle note, providing a crisp and invigorating scent. Typical concentration ranges in fragrance products are from 0.1% to 1%, depending on the desired effect and product type.
Citation hooks: FlavScents; IFRA; fragrance chemistry texts
5a. Key Constituents (Typical)
The major constituents of curled parsley leaf oil include myristicin, apiol, and phellandrene, among others. 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, curled parsley leaf oil is generally recognized as safe (GRAS) for use in food products. In the European Union, it is regulated under Regulation (EC) No 1334/2008 and is assigned an FL number. The regulatory status in the United Kingdom aligns with the EU post-Brexit. In Asia, the oil is accepted in Japan and China, with specific guidelines for use in food and cosmetics. In Latin America, countries like Brazil recognize its use under MERCOSUR regulations. However, formulators should verify specific country requirements due to potential variability.
Citation hooks: FEMA; EFSA; national authority publications
7. Toxicology, Safety & Exposure Considerations
For oral exposure, curled parsley leaf oil is considered safe at typical flavor use levels, with no specific ADI or MSDI established. Dermal exposure in fragrance applications should consider potential sensitization, although it is generally regarded as non-irritating at typical use levels. Inhalation exposure is minimal due to its low volatility. Overall, the risk profiles for food and fragrance applications are similar, with no significant safety concerns reported.
Citation hooks: EFSA; FEMA; PubChem; toxicology literature
8. Practical Insights for Formulators
Curled parsley leaf oil is valued for its ability to impart a fresh, herbal note that enhances the authenticity of both flavors and fragrances. It synergizes well with other green and herbal notes, such as basil and mint. Formulators should be cautious of overuse, which can lead to an overpowering or medicinal character. It is often underutilized in complex blends where its subtlety can add depth and realism.
Citation hooks: FlavScents; industry practice
9. Confidence & Data Quality Notes
The data on curled parsley leaf oil is well-established, with consistent sensory and compositional profiles documented across multiple sources. However, industry practices regarding specific use levels and regulatory interpretations may vary. Known data gaps include precise odor thresholds and comprehensive toxicological evaluations.
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 2026-04-14 12:58:24 GMT (p2)
