Ionone (FG & Technical Grades): The Subtle Violet–Floral Powerhouse for Flavors & Fragrances
Updated: Oct 17
Executive Summary
Ionone is a classic aroma ingredient delivering a refined violet–floral character with soft woody and fruity undertones. Despite its delicate smell, it exerts high olfactory impact at very low dosages especially for β‑ionone making it a cost‑efficient workhorse across flavors and fragrances. This whitepaper consolidates practical details for selection, formulation, compliance, and quality control, without referencing any specific brand.
What Is Ionone? (Chemistry & Isomers)
Ionones are norisoprenoid aroma compounds often arising from the oxidative cleavage of carotenoids. Two commercially relevant isomers are α‑ionone and β‑ionone. Both share a violet/powdery signature but differ in nuance and diffusion, with β‑ionone typically perceived as more powerful and transparent, while α‑ionone lends a slightly warmer, woodier floral tone.
Key Identifiers & Compliance Snapshot
Parameter | α‑Ionone | β‑Ionone |
CAS No. | 127-41-3 | 14901-07-6 (mixture) / 79-77-6 (trans) |
FEMA No. | 2594 | 2595 |
EC / EINECS | 204-846-3 | 201-234-8 (common listing; verify on your COA/REACH) |
INCI / Flavor Status | Parfum; Flavouring Substance | Parfum; Flavouring Substance |
Note: Numbers shown are industry‑standard references; always verify against your supplier’s COA/REACH registration and current regulatory lists.
Sensory Profile & Impact (Odor Threshold)
Signature: violet, powdery, petal‑like with soft woody‑fruity facets. Odor thresholds reported in literature are extremely low for β‑ionone (trace to parts‑per‑trillion order in air), which explains its impressive lift and bloom. In practice, start at minimal levels and titrate up based on matrix and target character.
Physico‑Chemical Properties (Formulator Notes)
Appearance: colorless to pale yellow liquid. Solubility: insoluble in water; miscible with common perfumery solvents and edible oils/alcohols. Both isomers are relatively hydrophobic and exhibit good substantivity in lipophilic matrices. Avoid prolonged exposure to air, heat and light to minimize oxidation.
Grades, Quality & Documentation
Confirm the available grade and exact ionone identity with the supplier. For food use, obtain the specification, COA and documentation supporting suitability for the intended application and destination market. Request the current SDS and TDS, relevant IFRA restriction information for fragrance use, and a current allergen declaration. Obtain food-use, GMO/Non-GMO, Vegan, Kosher or Halal documentation where relevant and available.
Applications & Typical Use Levels
Flavors
Beverages, confectionery, bakery, dairy desserts, fruit preparations. Ionone adds natural‑feeling violet/berry nuances and rounds citrus. Typical use levels are very low (ppm‑range), fine‑tuned per category regulation and sensory target. Always validate in the finished matrix.
Fragrances & Consumer Products
Fine fragrances, body care, hair care, air care and home care. Common usage spans from traces up to low single‑digit percentages in accords—higher when used as a key floralizer or to bridge floral hearts with soft woods and musks.
Formulation Strategy & Pairings
• Pairing: excels with rose, jasmine, iris/irones, damascones/damascenones, muguet materials, soft woods, and musks.• Role: bridge note between floral hearts and woody/musk bases; imparts powdery elegance.• For flavors: brightens citrus and berries; can impart a “dewy” petal effect at traces.• Dosing: start low; consider cumulative violet materials to avoid over‑powderiness.• Compatibility: soluble in ethanol, triethyl citrate, TEC, IPM, and most perfumery carriers; check stability in surfactant systems.
Stability, Storage & Packaging
Store in tightly closed containers, in a cool, dry place, protected from light and sources of ignition. Nitrogen blanketing is advisable for long‑term storage. Typical packaging includes lacquered/aluminum bottles and UN‑approved drums. Observe supplier‑stated shelf life and retest periods; rotate stock FIFO.
Regulatory & Safety Overview
• Flavor use: Confirm the exact ionone identity, supplied grade, permitted food use and conditions for the destination market. • Fragrance use: Check the current IFRA Standards and supplier restriction information for the exact isomer or mixture and intended finished-product category. • Labelling: Obtain a current allergen declaration and assess finished-product labelling under the applicable requirements, including EU Regulation 2023/1545 for cosmetics. • Compliance: Verify applicable food or fragrance requirements for the target market. Base handling and exposure assessment on the current SDS and grade-specific supplier information.
Analytical & QC (GC‑MS, Assay)
Identity is commonly confirmed by GC‑MS with retention indices consistent with reference standards. Assay by GC area % is typical. Monitor isomer ratio, residual solvents, and oxidation markers per your internal specification. For FG grade, ensure compliance with food‑contact and purity criteria defined in your procurement specs.
Purchasing Checklist & FAQs
Checklist: □ Supplied grade and exact identity confirmed on the specification and COA □ CAS/FEMA identifiers match the internal specification □ Relevant IFRA restriction information and current allergen declaration on file for fragrance use □ Current SDS/TDS and applicable regulatory information received □ Food-use suitability confirmed for the intended application and market where relevant □ Packaging compatibility and shelf life acceptable □ Sample evaluated in the final matrix or application FAQs: Q: Can Ionone be used in both flavors and fragrances? A: Suitability depends on the exact ionone identity and supplied grade. Confirm food-use suitability and conditions for the intended application and market before using it in food. Q: What if a violet effect becomes too powdery? A: Reduce the ionone level and rebalance with fresher floral or green notes, or add lift with citrus or aldehydes. Q: Are methyl ionones the same? A: No. Methyl ionones are related materials with different profiles and regulatory considerations. Treat them separately.
Sample & Quotation
Looking to trial Ionone in your next formula? Contact us for FG/Technical grade availability, samples, COA/SDS/TDS, and regulatory support. Provide your application, target dosage, and documentation needs to accelerate evaluation.
This article was researched and written by Galbora
The use of this article is permitted by citing the source.
📩 Get in Touch
📧 Email: info@Galbora.com
🌐 Website: www.Galbora.com
Location: İçerenköy,umut Sk.No:10 D:12
34752 Ataşehir / İstanbul
Comments