Supercritical CO2 Extraction vs Solvent Extraction: Which Method is Superior?

Introduction

Supercritical CO2 extraction and solvent extraction are two commonly used methods for extracting bioactive compounds. This article compares their purity, efficiency, and eco-friendliness to determine which is best.

1. Understanding Supercritical CO2 Extraction and Solvent Extraction

• Supercritical CO2 Extraction: Uses high-pressure CO2 for solvent-free extraction.

• Solvent Extraction: Uses ethanol, butane, or hexane to dissolve compounds.

2. Performance Metrics

• Supercritical CO2 Extraction: 99% purity, solvent-free, high terpene retention.

• Solvent Extraction: 85-95% purity, possible solvent residues, lower terpene retention.

3. Real-World Applications

• CBD Production

• Essential Oil Extraction

• Coffee Decaffeination

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