The application of amino acid ionic liquids as additives in the ultrasound-assisted extraction of plant material.

ABSTRACT: The aim of the present study was to determine the antioxidant activity of the aqueous extracts from Lycopodium clavatum, Cetraria islandica and Dipsacus fullonum obtained using aqueous solutions of ionic liquids by the ultrasound-assisted extraction (IL-UAE) method. Triethanolammonium salts [TEAH]⁺[AA]^- of four amino acids of different hydrophobicity - isoleucine - Ile, methionine - Met, threonine - Thr and arginine - Arg, were chosen as ionic liquids, because they are based on natural, bio-renewable raw materials, such as amino acids and contain a pharmaceutically and cosmetically acceptable counterion of triethanolamine. Triethanolammonium salts were synthesized, identified by spectroscopic methods (NMR and FT-IR) and characterized by thermal me

SUBMITTER: Roman B 

PROVIDER: S-EPMC9039413 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature