CO2 Extracted Ginger Oil: A Supercritical Approach

Introduction

Ginger oil, extracted from Zingiber officinale, is widely recognized for its anti-inflammatory, analgesic, and antimicrobial properties. It is commonly used in pharmaceuticals, food additives, cosmetics, and aromatherapy. However, traditional extraction methods such as steam distillation and solvent extraction often result in loss of bioactive compounds, residual solvents, or high-temperature degradation.

CO2 supercritical extraction (CO2 SUPERCRITICAL EXTRACTION MACHINE) provides a solvent-free, high-purity, and selective extraction process, preserving the essential bioactive compounds such as gingerol, shogaol, and zingiberene. This article explores the CO2 extraction process, key parameters, experimental data, and industrial applications of ginger oil.

1. Principles of CO2 Supercritical Extraction of Ginger Oil

CO2 becomes a supercritical fluid when subjected to high pressure (>7.38 MPa) and temperature (>31.1°C). In this state, CO2 behaves like both a gas and a liquid, allowing it to penetrate ginger root and selectively dissolve essential bioactive compounds without causing heat-induced degradation.

The CO2 supercritical extraction process consists of:...

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