CO2 Extracted Chamomile Oil: A Supercritical Approach

Introduction

Chamomile oil, extracted from Matricaria chamomilla and Chamaemelum nobile, is well known for its anti-inflammatory, soothing, and antimicrobial properties. It is widely used in aromatherapy, skincare, pharmaceuticals, and herbal medicine.

Traditional extraction methods such as steam distillation and solvent extraction often result in loss of heat-sensitive compounds or residual solvents. However, CO2 supercritical extraction (CO2 SUPERCRITICAL EXTRACTION MACHINE) provides a solvent-free, highly selective, and high-purity method that retains the full spectrum of chamomile’s bioactive compounds, including α-bisabolol and chamazulene.

This article explores the CO2 extraction process, key parameters, experimental data, and industrial applications of chamomile oil.

1. Principles of CO2 Supercritical Extraction of Chamomile Oil

CO2 becomes a supercritical fluid at temperatures above 31.1°C and pressures above 7.38 MPa. In this state, it has both gas-like diffusivity and liquid-like solubility, making it an ideal solvent for selectively extracting chamomile oil’s beneficial compounds.

The CO2 supercritical chamomile extraction process consists of:...

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