Processing of Lovage into High‐Value Components Using Supercritical CO₂ and Pressurized Liquid Extraction

Abstract

Lovage roots, leaves, and stems were extracted by supercritical carbon dioxide (SFE-CO 2 ), while the residues of SFE-CO 2 were further extracted by pressurized liquid extraction with acetone and methanol. Optimization of SFE-CO 2 parameters resulted in enhanced extract yields from all lovage parts. The antioxidant potential of solid material and extracts was assessed by Trolox-equivalent antioxidant capacity (TEAC) in two different assays and by the total phenolic content (TPC). TEAC and TPC values of SFE-CO 2 residues were distinctly lower than those of the initial lovage material which indicates that lovage antioxidants are distributed both in lipophilic and fat-insoluble fractions.