1. A new generation of aromatic processes
The perfumery and cosmetics sector is entering a new phase in which the challenge lies in reproducing the real aroma of the raw material with the highest possible fidelity.
This new generation of aromas is based on more sustainable, selective and ingredient-friendly technologies, capable of preserving the original sensory identity of the raw material while simultaneously meeting increasingly demanding regulatory and environmental requirements. In this context, ensuring the stability of aromatic compounds throughout processing has become a critical technical objective.
2. Why traditional processes alter stability of aromatic compounds
Many conventional extraction processes have proven effective from an industrial perspective, but they present clear limitations when the goal is to preserve the original aromatic profile intact.
- High temperatures: steam distillation and thermal solvent-based extraction operate at elevated temperatures, moving the result away from the authentic aroma of the raw material.
- Degradation of volatile compounds: the most delicate fractions degrade, causing the aroma to lose freshness and definition.
- Oxidation during processing: the presence of oxygen promotes undesirable reactions that generate altered or off-notes.
- Batch-to-batch variability: makes it difficult to maintain a consistent olfactory signature and compromises the long-term stability of aromatic compounds.
3. Five raw materials shaping the new generation of aromas
Not all raw materials present the same challenges. Below are the main aromatic groups driving the development of more advanced extraction technologies.
Fresh citrus notes
- Raw material: lemon, orange and bergamot peels
- Challenge: highly volatile terpenes sensitive to heat
- Key factors: low-temperature processing, solvent-free technologies and oxidation control
Herbal and aromatic scents
- Raw material: rosemary, lavender, thyme, sage
- Challenge: avoiding heavy or oxidised green notes
- Key factors: selective extraction of light fractions and controlled processing environments
Soft spicy aromas
- Raw material: cardamom, ginger, pepper
- Challenge: preserving warmth without generating burnt or bitter notes
- Key factors: gentle processes and fine-tuned pressure and temperature control
Delicate floral aromas
- Raw material: chamomile, rose, jasmine
- Challenge: extremely volatile aromatic molecules
- Key factors: technologies without high temperatures or organic solvents
Authentic vanilla aroma
- Raw material: Vanilla planifolia pods
- Challenge: preserving natural warmth and sweetness without artificial notes
- Key factors: mild extraction processes and protection against oxidation
4. Extraction technologies: advantages and limitations
Consumers demand natural aromas that are faithful to their origin and obtained through sustainable processes.
However, not all technologies respond equally to this challenge.
| Technology | Solvents | Advantages | Limitations / Risks |
|---|---|---|---|
| Steam distillation | Water / steam | Widely used and robust technology | Loss of fresh notes and possible “cooked” character |
| Organic solvent extraction | Ethanol, hexane, etc. | High extraction capacity | Regulatory impact, solvent residues and possible aroma alteration |
| Cold pressing | No | Simple process and perception of naturalness | Limited yield |
| Supercritical CO₂ extraction | Reusable CO₂ | High selectivity, low oxidation and excellent preservation of fresh notes | Requires precise technical parameterisation |
5. Sustainability, efficiency and aromatic fidelity
Today, sustainability and efficiency go hand in hand. New extraction technologies make it possible to reduce environmental impact while obtaining aromas that are more stable, purer and more faithful to the original raw material. This approach aligns with the standards demanded by contemporary perfumery and defines
the path towards a new generation of authentic and responsible aromas.
