A Bibliometric Analysis of the Supercritical CO₂ Extraction of Essential Oils from Aromatic and Medicinal Plants: Trends and Perspectives

Abstract

This bibliometric analysis investigates the scope and evolution of research on the supercritical CO2 extraction of essential oils from aromatic and medicinal plants. Utilizing the Scopus database, we examine publications from 1995 to 2024, revealing advancements in extraction technologies and collaborative efforts across 42 countries. Key findings include the increasing publication rates signifying the method’s growing acceptance and the pivotal role of countries like China and Italy in influencing the research trajectory. The study employs R Studio for data analysis and VOSviewer for network visualizations, uncovering the centrality of terms like “carbon dioxide”, “essential oils”, and “supercritical extraction” in the research discourse. The results offer insights into the method’s efficiency and highlight potential directions for future research in sustainable extraction practices.

Keywords

• oleoresins
• green extraction techniques
• carbon dioxide extraction
• bibliometric analyses