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AMBIENTUM BIOETHICA BIOLOGIA CHEMIA DIGITALIA DRAMATICA EDUCATIO ARTIS GYMNAST. ENGINEERING EPHEMERIDES EUROPAEA GEOGRAPHIA GEOLOGIA HISTORIA HISTORIA ARTIUM INFORMATICA IURISPRUDENTIA MATHEMATICA MUSICA NEGOTIA OECONOMICA PHILOLOGIA PHILOSOPHIA PHYSICA POLITICA PSYCHOLOGIA-PAEDAGOGIA SOCIOLOGIA THEOLOGIA CATHOLICA THEOLOGIA CATHOLICA LATIN THEOLOGIA GR.-CATH. VARAD THEOLOGIA ORTHODOXA THEOLOGIA REF. TRANSYLVAN
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STUDIA CHEMIA - Ediţia nr.3 din 2019 | |||||||
Articol: |
THE PHENOLIC COMPOUNDS, ANTIOXIDANT AND ANTICHOLINESTERASE ACTIVITIES OF CYCLOTRICHIUM ORIGANIFOLIUM (LABILL.) MANDEN & SCHENG AND THYMUS SIPYLEUS BOISS TEAS FROM TURKEY. Autori: ZÜLEYHA ÖZER. |
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Rezumat: 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. Keywords: Cyclotrichium origanifolium; Thymus sipyleus; phenolics; anticholinesterase; antioxidant.
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