Antioxidant capacity and fatty acid profile of <i>Centaurea kotschyi</i> (Boiss. & Heldr.) Hayek var. <i>persica</i> (Boiss.) Wagenitz from Turkey

Abstract

RESUMEN Capacidad antioxidante y perfil de ácidos grasos deLa capacidad antioxidante de extractos metanólicos y composición de ácidos grasos de C. kotschyi var. pérsica fueron investigados. Seis métodos químicos diferentes fueron realizados para la determinación de la capacidad antioxidante. La composición de ácidos grasos fue analizada por cromatografía de gases. Los valores de IC 50 de los extractos fueron 37.09 µg/ml (en el ensayo con DPPH). En el sistema β-carotene/ácido linoleico, el extracto mostró un 65.22% de inhibición frente a la oxidación del ácido linoleico. La cantidad total de contenido fenólico y capacidad antioxidante total fueron 36.52 mg equivalentes de ácido gallico (GAE)/g y 74.93 mg equivalentes de ácido ascórbico (AE)/g, respectivamente. El principal ácidos graso encontrado, por análisis de CG, en C. kotschyi var. pérsica fue el C 18:3 ω3 (ácido α-linolenico). Los resultados presentados aquí indican que C. kotschyi var. pérsica posee unas fuertes propiedades antioxidantes. Además, las especies pueden ser usadas como aditivos naturales en los alimentos, en cosmética y en industria farmacéutica. The antioxidant capacity of the methanolic extract and the fatty acid composition of C. kotschyi var. persica were investigated. Six different chemical methods were used to determine the antioxidant capacity. The fatty acid composition was analyzed using gas chromatography. The IC 50 value of the extract was determined as 37.09 µg/ml (in the DPPH assay). In the β-carotene/linoleic acid system, the extract exhibited 65.22% inhibition against linoleic acid oxidation. The amount of total phenolic content and total antioxidant capacity were detected as 36.52 mg gallic acid equivalent (GAE)/g and 74.93 mg ascorbic acid equivalent (AE)/g, respectively. The major fatty acid in the composition of C. kotschyi var. persica was found to be C 18:3 ω3 (α-linolenic acid) by GC analysis. properties. Therefore, the species can be used as a natural additive in food, cosmetic and pharmaceutical industries. PALABRAS CLAVE: Capacidad antioxidante total -KEy-woRdS: β-carotene/Linoleic acid system -Centaurea kotschyi -Fatty acid composition -Reducing power -Total antioxidant capacity -Total phenolic content.

Essential Oil and Fatty Acid Composition of Centaurea solstitialis ssp. solstitialis

“…Oleic acid; monounsaturated fatty acid (MUFA) is the major compound of our research and this result can show that C. solstitialis ssp. solstitialis can be beneficial for decreasing LDL [7,9]. According to the literature an essential oil research about C. solstitialis from Iran showed different profile than our research about C. solstitialis ssp.…”

“…Oleic acid; monounsaturated fatty acid (MUFA) is the major compound of our research and this result can show that C. solstitialis ssp. solstitialis can be beneficial for decreasing LDL [7,9].…”

Chemical composition of oils from wild almond (<i>Prunus scoparia</i>) and wild pistachio (<i>Pistacia atlantica</i>)

“…Powdered wild almond (200 g) was CHEMICAL COMPOSITION OF OILS FROM WILD ALMOND (PRUNUS SCOPARIA) AND WILD PISTACHIO (PISTACIA ATLANTICA) the solution was allowed to stand for 2 h at ambient temperature (about 22 o C). The total phenol content was determined colorimetrically at 750 nm, and expressed as gallic acid equivalents (Zengin et al, 2011).…”

Determination of Phenolic Contents by HPLC, and Antioxidant, Antimicrobial, Antityrosinase, and Anticholinesterase Activities of Psephellus huber-morathii

“…Centaurea huber-morathii. It has been reported that the determination of total phenolic contents, free radical scavenging activity, cupric ion reducing power and ferric reducing antioxidant power was carried on some different Centaurea species [17,18,[35][36][37][38][39]. Besides, there have been noticeable research into the antimicrobial activities of different Psephellus species.…”

“…Some Centaurea species are employed as herbal therapies for fever, diabetes, hemorrhoid, and peptic ulcer in traditional Anatolian folk medicine [14,15]. Pharmacological and phytochemical studies of various different Centaurea species have identified antioxidant, antimicrobial and antipyretic properties [16][17][18][19].…”