Phytochemical analysis, antioxidant, and antihyperlipidemic activities of Teucrium takoumitense

Abstract

Objective: The main purpose of the present work was to determine the chemical composition, safety, and antioxidant and antihyperlipidemic activities of an aqueous extract of Teucrium takoumitense. Methods: Phytochemical analysis (total phenolic, total flavonoid, and total hydroxycinnamic acid contents), antioxidant activity (ferric-reducing antioxidant power, 2,2ʹ-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid, 2,2-diphenyl-1-picrylhydrazil, and total antioxidant capacity tests), acute toxicity, and antihyperlipidemic activity were evaluated according to established models. In addition, the phytochemical profile was determined by methylation followed by gas chromatography-mass spectrometry (GC/MS). Results: The aqueous extract of T. takoumitense had a high content of total polyphenols (87.01 0.31 mg gallic acid equivalent (GAE)/g extract) and hydroxycinnamic acid (2.28 0.1 g/100 g PowderedMaterial) and a lowcontent of total flavonoids (2.99 0.16 mg GAE/g extract). In addition, the extract demonstrated remarkable antioxidant activity (DPPH IC50 ¼ 76.67 0.56 mg/mL, ABTS IC50¼89.65 0.27mg/mL,FRAPEC50¼296.32 0.86mg/ mL, TAC value ¼ 43 0.27 mg EAA/g extract). The main compounds were identified as benzene, (hexyloxy)- (19.32%), 2,6a-methano-6aH-indeno[4,5-b]oxirene, octahedro-( 1a.alpha., 2.beta., 3a.alpha., 6a.beta., 6b.alpha.)- (32.42%), D-fucose (5.47%), 5-hydroxymethylfurfural (5.47%) and guaiacol (3.19%). The LD50 was estimated to be between 500 and 2000 mg/kg. Furthermore, at 500 and 250mg/kg, the aqueous extract of T. takoumitense exhibited good antihyperlipidemic activity in vivo. Conclusion: T. takoumitense extract has significant pharmacological potential and a varied chemical composition.