The phenolıc compounds, antıoxıdant and antıcholınesterase actıvıtıes of Cyclotrıchıum Orıganıfolıum (labıll.) Manden & Scheng and Thymus Sıpyleus boıss teas from Turkey

Abstract

In this study, phenolic compounds, antioxidant and anticholinesterase activities of Cyclotrichium origanifolium (Labill.) Manden & Scheng and Thymus sipyleus Boiss teas were investigated. Two methods were used for the preparation of the teas: infusion and decoction. The quantitative amounts of the phenolic contents were determined by LC-MS/MS. Anticholinesterase activity was measured by Ellman method. Also, the antioxidant activity of the tea samples was determined by three methods: 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging, β-carotene linoleic acid and CUPRAC assays. Flavonoids and derivatives were the most abundant components of the C. origanifolium and T. sipyleus teas. The infusion of C. origanifolium and decoction of T. sipyleus were found to be rich in phenolics. The tea samples exhibited beneficial antioxidant and anticholinesterase activities. There is a useful relationship between the antioxidant capacity and polyphenolic composition of the decoction and infusion of C. origanifolium and T. sipyleus. This study supported that C. origanifolium and T. sipyleus used as tea traditionally, are source of natural antioxidant.

Antioxidant activities of aqueous extracts from two Thymus species growing in Turkey Primary tabs

“…chaubardii (IC50 28.85 μg/mL). To bring about as a result, the weak activity estimated in these species is connect to a low amount of phenolics [9,19,22,24,28].…”

“…The β-carotene-linoleic acid method was used analyzed antioxidant activity [9,[22][23][24]. β-carotene (0.5 mg) in 1 mL of chloroform was added to 25 μL of linoleic acid, and 200 mg of Tween 40 emulsifier mixture.…”

“…The free radical scavenging activity of the extracts was determined by the DPPH (1,1-diphenyl-2-picrylhydrazyl) assay [9,[22][23][24][25]. In its radical form, DPPH absorbs at 517 nm, but upon reduction by an antioxidant or a radical species its absorption decreases.…”

“…Thymus species are known as source of phenolic compounds which have strong antioxidant activities [9]. Antioxidant compounds are polyphenolic structure and present as of almost all plants, fruits, vegetables, microorganisms, fungi an animal tissues.…”

Enzyme inhibitors as controllers of neurodegenerative diseases: An update of in vitro effects of medicinal plants

“…According to the reviewed literature, many papers present results obtained for plants collected in Turkey (Bozkurt et al, 2021;Deveci et al, 2018;2019;Emir and Emir, 2021;Karakaya et al, 2020;2019a;2018;2019b;c;Orhan et al, 2019;Ozkan et al, 2018b;a;Saleem et al, 2020c;2019b;2019a;2021;Sarikurkcu and Zengin, 2020;Sut et al, 2019b;a;Uysal et al, 2019a;c;2019b;2021;Yilmaz et al, 2018;Zengin et al, 2018a;2019a;c;c;d;2019d;2018e;2019f;2018f;2019h;2021;2019i;2018g;2019j;2018h;2019k;l;2018i). Turkey has unique geomorphology, topography, climate due to its position at the intersection of three phytogeographical regions (Euro-Siberian, Mediterranean and Irano-Turanian), which makes it a biodiversity hotspot with 12000 plant taxa, among which is 32 % endemic (Zengin et al, 2018b).…”