CO2 vs Steam Distillation for Heat-Sensitive Compounds

Extracting **heat-sensitive compounds** requires a **gentle, low-temperature process** to maintain **bioactivity and purity**. This article compares **supercritical CO2 extraction** and **steam distillation** in terms of **efficiency, thermal degradation, and compound stability**.

1. Heat Sensitivity and Extraction Conditions

• Supercritical CO2 Extraction: Operates at **low temperatures (31-40°C)**, preventing thermal degradation.
• Steam Distillation: Uses **high heat (~100°C)**, which may break down **delicate compounds**.

2. Preservation of Bioactive Molecules

• CO2 Extraction: Retains **antioxidants, flavonoids, and essential oils** with minimal loss.
• Steam Distillation: Heat exposure can **alter or degrade** bioactive molecules.

3. Suitability for Various Industries

• CO2 Extraction: Used in **pharmaceuticals, high-end cosmetics, and premium essential oils**.
• Steam Distillation: More common for **bulk herbal extractions**, but less effective for heat-sensitive products.

4. Case Study: CO2 Extraction in Herbal Supplements

A nutraceutical company **increased antioxidant retention by 50%** after switching to CO2 extraction.

5. Conclusion

For **heat-sensitive compounds**, **supercritical CO2 extraction** ensures **higher purity and bioactivity preservation**. Companies like **SHANGHAI NORTH BROOKS** provide **CO2 SUPERCRITICAL EXTRACTION MACHINE** solutions for **delicate compound extractions**.

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