Techvina CO2 Extracts: Premium Botanical Extracts for Flavor, Fragrance & Nutraceuticals
As global demand for clean-label, high-performance natural ingredients continues to rise, CO2 extraction has established itself as the gold standard for capturing the full bioactive and aromatic value of botanical raw materials — with none of the thermal damage or chemical residue that compromise conventional methods.
At Techvina Holding JSC — Vietnam’s leading producer of essential oils and natural aroma chemicals — we are proud to introduce our CO2 Extracts portfolio: premium botanical extracts, sustainably sourced from Vietnam’s diverse agricultural regions and produced using advanced Supercritical CO2 Extraction technology.
1. What Is CO2 Extraction?
CO2 extraction — more precisely, Supercritical CO2 Extraction — is an advanced separation technology that uses carbon dioxide in its supercritical state as a clean, selective solvent to isolate bioactive compounds and aromatic molecules from botanical raw materials.
The Supercritical CO2 extraction process operates through a controlled sequence of pressurization, dissolution, and separation:
Step 1 — Pressurization: Liquid CO2 from supply cylinders is pumped into a heating unit and raised above its critical point (>31.1°C, >73.8 bar), converting it into a supercritical fluid.
Step 2 — Extraction: The supercritical CO2 flows through a sealed extraction vessel loaded with prepared botanical raw material (dried and milled to optimize surface area). As it percolates through the biomass, target compounds dissolve into the CO2 fluid — volatile aromatics, essential oils, bioactive compounds, and resins — depending on the pressure and temperature settings applied.
Step 3 — Separation: The CO2-extract mixture exits the extraction vessel and passes into a separator at reduced pressure. As pressure drops, CO2 loses its solvating power and reverts to a gas — releasing the extracted compounds, which precipitate out of solution as a pure, concentrated extract.
Step 4 — CO2 Recovery: The released CO2 gas is condensed, re-pressurized, and recycled back into the system — making the process both economically efficient and environmentally responsible, with near-zero solvent waste.
Key Technical Advantages
- Zero solvent residue — CO2 completely evaporates at ambient conditions, leaving no trace in the final extract
- Low operating temperature (35–60°C) — below the thermal degradation threshold of most heat-sensitive aromatic and bioactive compounds
- Tunable selectivity — pressure and temperature settings can be adjusted to target specific compound classes within the same botanical
- Full-spectrum output — captures volatile aromatics, non-volatile bioactives, oleoresins, and waxes that steam distillation cannot recover
- Sustainable — CO2 is recyclable within the system; no chemical waste generated
2. CO2 Extraction vs. Steam Distillation
The three most widely used extraction and separation methods in the natural ingredients industry each offer a distinct trade-off between temperature, yield, compound profile, and output type. The comparison below provides a technical overview:
| Criteria | CO2 Extraction | Steam Distillation |
| Operating Temp. | 35–60°C (below degradation threshold) | 100–140°C |
| Pressure | 73–300+ bar (tunable) | Atmospheric / slight over-pressure |
| Yield Efficiency | Up to 90%+ volatile recovery | ~60–82% |
| Heat-Sensitive Compounds | ✅ Fully preserved | ⚠️ Partial degradation |
| Solvent Residue | ✅ Zero — CO2 evaporates completely | ✅ None |
| Aroma Accuracy | Closest to raw plant profile | Altered by thermal process |
| Selectivity / Tunability | ✅ High — adjustable by P & T | Low — fixed process |
| Output Type | Full-spectrum extract (oil/resin/wax) | Essential oil (volatile fraction only) |
| Environmental Impact | CO2 recyclable, near-zero waste | High energy, water-intensive |
| Best For | Premium F&F, Nutra, Cosmetics, Pharma | Large-scale essential oil production |
3. Techvina CO2 Extracts — Full Product Catalogue
Our current portfolio features 12 Vietnamese botanical CO2 extracts, covering four core application segments: Flavor & Fragrance, Food & Beverage, Nutraceuticals & Pharmaceuticals, and Cosmetics & Personal Care.
Beyond the products listed above, Techvina’s R&D team continues to develop new additions to our CO2 Extracts portfolio — expanding our botanical range to meet the evolving demands of global flavor, fragrance, nutraceutical, and cosmetic markets. If you are looking for a specific Vietnamese botanical extract not yet listed, we welcome the conversation.
4. Vietnam’s Sourcing Advantage: Diversity, Traceability & Reliable Supply
Vietnam’s diverse climate — spanning tropical lowlands, highland plateaus, and temperate mountainous regions — creates the ideal conditions for cultivating a wide range of high-quality botanical raw materials year-round. This natural advantage allows Techvina to source the full portfolio of 12 CO2 extracts entirely from within Vietnam, ensuring freshness, minimal post-harvest degradation, and consistent raw material quality from harvest to extraction.
Every batch is fully traceable from origin to export, backed by complete sourcing documentation, standardized handling protocols, and verified extraction records — giving our global partners the supply confidence and quality assurance they need.
Request Samples or Technical Documentation
We welcome inquiries from ingredient buyers, formulators, R&D teams, and sourcing professionals worldwide.
- Product samples for evaluation
- Technical Data Sheets (TDS), Certificate of Analysis (COA), Safety Data Sheets (SDS)