Overview
ISO 24609:2025 is the International Standard that specifies the quality and characteristic parameters for the essential oil of carrot seed (Daucus carota L.), primarily produced in France and India. This standard facilitates consistent assessment and verification of the essential oil’s authenticity and quality through defined physical, chemical, and chromatographic requirements. It serves as a vital reference for producers, quality control laboratories, and users in industries where carrot seed essential oil is employed.
Key Topics
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Scope and Application
ISO 24609:2025 applies to essential oil derived by steam distillation of carrot seeds from the Apiaceae family, with particular focus on French and Indian production types. It specifies essential attributes such as appearance, odor, density, refractive index, optical rotation, and chromatographic profile to standardize quality evaluation.
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Quality Requirements
The standard outlines mandatory characteristics:
- Appearance: Clear liquid at 20 °C, yellow to orange (French type), light yellow to amber (Indian type)
- Odor: Powdery, fruity, and spicy with earthy base notes for French type; earthy, warm, and fruity for Indian type
- Physical Constants: Includes relative density, refractive index, and optical rotation within specified ranges
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Chromatographic Profile
Gas chromatography (GC) analysis is required to identify and quantify key compounds such as α-pinene, sabinene, geraniol, carotol, and daucene. The standard details the minimum and maximum percentages for these components based on the oil's origin (French or Indian type), providing a reliable chemical fingerprint for quality assurance.
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Sampling and Testing Methods
Sampling procedures adhere to ISO 212, ensuring representative samples with a minimum volume of 25 mL for testing. Testing methods for physical and chemical attributes utilize ISO standards 279, 280, 592, and 11024 series, guaranteeing methodological consistency and reproducibility.
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Packaging, Labelling and Storage
Packaging and labelling conform to ISO 210 and ISO 211, ensuring correct conditioning, secure transport, and traceability of the essential oil product.
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Flash Point Information
The standard provides mean flash point values for safety considerations: approximately 58 °C for the French type and 88 °C for the Indian type, obtained using Pensky Martens apparatus, which is essential for transport and handling safety.
Applications
ISO 24609:2025 is essential for several professional fields:
- Aromatherapy and Cosmetics: Ensures purity and consistency of carrot seed essential oil used in high-end skincare, fragrance formulations, and therapeutic products.
- Pharmaceuticals: Assists in quality control of natural products where carrot seed oil's chemical profile impacts efficacy and safety.
- Food and Flavor Industry: Provides standardized criteria for flavoring agents derived from carrot seed essential oil.
- Trade and Regulation: Enables compliance with international trade standards and facilitates dispute resolution on product authenticity and quality claims.
Related Standards
The implementation and testing of ISO 24609:2025 are supported by various complementary ISO standards, including:
- ISO 210: General requirements for essential oil packaging, conditioning and storage
- ISO 211: Labelling and marking of essential oil containers
- ISO 212: Sampling procedures for essential oils
- ISO 279: Determination of relative density at 20 °C
- ISO 280: Determination of refractive index
- ISO 592: Determination of optical rotation
- ISO 11024: Guidance on chromatographic profiles for essential oils
- ISO/TR 11018: Guidance on flash point determination for essential oils
Together, these standards provide a comprehensive framework for controlling and certifying the quality of carrot seed essential oil, promoting safety, consistency, and global recognition in essential oil markets.
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