Total Phenolics, Flavonoids and Tannins Contents and in Vitro Antioxidant and Antibacterial Effects of Arenaria Rubra Extracts

Abstract

This research was conducted in order to establish content of total phenolics, flavonoids, flavonols and flavonss, and tanninsof extracts from theflowers of Arenaria rubra. In addition, antioxidant and antimicrobial activities were evaluated. The DPPH radical trapping technique andferric reducing antioxidant power (FRAP) were examined in vitro for antioxidant activity.Theinhibitory effects of the extracts against species of gram-positive and gram-negative bacteria, and speciesof fungi were determined using the disk diffusion method.The highest DPPH radical-scavenging activity was found in the methanol-water extract,the antibacterial activity was expressed only on Escherichia coli, for the antifungal activities the yeast C. albicanswas sensitive to all extracts tested.