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

Food and Chemical Toxicology : an International Journal Published for the British Industrial Biological Research Association
D SamecJ Piljac-Zegarac

Abstract

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 Jure, 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. Our results point to significantly (p<0.05) different TP content between leaf and flower infusions, as well as across localities. Leaf infusions of T. arduini from Susanj exhibited marked antibacterial activity against Staphylococcus aureus, while none of the tested infusions e...Continue Reading

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Citations

Dec 19, 2014·Natural Product Research·Fatih KarahanIbrahim Halil Doganturk
May 29, 2013·Food and Chemical Toxicology : an International Journal Published for the British Industrial Biological Research Association·Osman SagdicBerna Senturk
Oct 24, 2017·Natural Product Research·Claudio FrezzaMauro Serafini
May 10, 2011·Journal of Medicinal Food·Kevser KaramanCihat Ozdemir
Aug 6, 2020·Drug and Chemical Toxicology·Aleksandra MarkovićOlivera Milošević-Djordjević
Jan 29, 2019·International Journal of Preventive Medicine·Narges Amel ZabihiSaeed Niazmand
Jun 6, 2018·Biomedicine & Pharmacotherapy = Biomédecine & Pharmacothérapie·Sakineh KhodadadiSeyed Abdolrahim Rezaee

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