Supercritical CO2 vs Ethanol Extraction for Pharmaceutical Applications
来源: | 作者:selina | 发布时间 :2025-02-27 | 36 次浏览: | Share:

 Supercritical CO2 vs Ethanol Extraction for Pharmaceutical Applications

Introduction

Pharmaceutical extraction demands high precision and purity. Both CO2 supercritical extraction and ethanol extraction are widely used, but CO2 is increasingly favored for its safety and efficiency.

CO2 Extraction in Pharmaceuticals

  • Selective Extraction: Targets bioactive compounds with high precision.

  • No Residual Solvents: Ensures pharmaceutical-grade purity.

  • Preserves Bioactivity: Essential for producing effective medicines.

Ethanol Extraction in Pharmaceuticals

  • Broad-Spectrum Extraction: Useful for full-plant extracts.

  • More Processing Steps: Requires additional filtration.

Comparison

FactorCO2 Supercritical ExtractionEthanol Extraction
PurityPharmaceutical-gradeRequires extra purification
BioavailabilityHighCan degrade some compounds
Solvent SafetyNo residueEthanol traces possible

Case Study: Herbal Medicine Production

Pharmaceutical companies use CO2 supercritical extraction machines to produce herbal medicines free of solvent residues.

Conclusion

For pharmaceutical applications, CO2 supercritical extraction is superior in purity, efficiency, and compliance with regulatory standards.


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