Antioxidant and antimicrobial properties of Teucrium arduini L. (Lamiaceae) flower and leaf infusions (Teucrium arduini L. antioxidant capacity)

0347698 - ÚEB 2011 RIV GB eng J - Journal Article
Šamec, D. - Grúz, Jiří - Strnad, Miroslav - Kremer, D. - Kosalec, I. - Grubešić, R. J. - Karlović, K. - Lucic, A. - Piljac-Žegarac, J.
Antioxidant and antimicrobial properties of Teucrium arduini L. (Lamiaceae) flower and leaf infusions (Teucrium arduini L. antioxidant capacity).
Food and Chemical Toxicology. Roč. 48, č. 1 (2010), s. 113-119. ISSN 0278-6915. E-ISSN 1873-6351
R&D Projects: GA AV ČR KAN200380801
Institutional research plan: CEZ:AV0Z50380511
Keywords : Teucrium arduini L * Antioxidant activity * Antimicrobial activity
Subject RIV: EC - Immunology
Impact factor: 2.602, year: 2010

Antioxidant and antimicrobial activities, as well as total phenol (TP, Folin-Ciocalteu method) and phenolic acid (UPLC-MS/MS) contents of leaf and flower infusions of Teucrium arduini L from six different mountainous localities in Croatia (Ucka, Vosac, Sveti jute, Snjeznica, Vaganac, Susanj) were analysed in this study. Antioxidant capacity was evaluated using the ferric reducing/antioxidant power (FRAP) assay, as well as 2,2-diphenyl-1-picrylhydrazyl (DPPH), and 2,2'-azinobis (3-ethylbenzthiazoline-6-sulphonic acid) (ABTS) radical scavenging assays. The antioxidant potency composite index (ACI), giving equal weight to all three methods used to quantify antioxidant capacity, was the highest for the sample from Vosac (96.7) among flower infusions, while maximum ACI (100) was determined for the infusion from Ucka among leaf infusions. Strong positive correlation was found between the total phenols and ACI for leaf (r = 0.953) and flower (r = 0.977) infusions.
Permanent Link: http://hdl.handle.net/11104/0188423