A Comparative Study on Antioxidant and Antibacterial Activities of Four Senecio Species From Turkey

• Main Authors: Sevil ALBAYRAK, Ahmet AKSOY, Lutfiye YURTSEVEN, Abit YAŞAR
• Format: Article
• Language: English
• Published: International Journal of Secondary Metabolite 2015-07-01
• Series: International Journal of Secondary Metabolite
• Subjects: Senecio; phenolic; antioxidant activity; antimicrobial activity
• Online Access: http://ijate.net/index.php/ijsm/article/view/83

<p>The present study was conducted to investigate total phenolic content, antioxidant and antibacterial activity of four <em>Senecio</em> L. (Asteraceae). The <em>in vitro</em> antioxidant activities of extracts were evaluated with different antioxidant testing systems. Their antioxidant activities were assessed by phosphomolybdenum reduction, DPPH and β-carotene bleaching assay. The extracts exhibited strong antioxidant activity and high scavenging activities against DPPH free radicals. While the extracts exhibited weak to moderate β-carotene bleaching activity. The antimicrobial activity of <em>Senecio </em>extracts was tested against 15 microorganisms using agar diffusion and broth microdilution assays. The extracts were found to be weak to moderate effective against 8 out of the 15 microorganisms tested with minimal inhibitory concentration (MIC) values ranging from 1.5 to 12.5 mg/ml. In conclusion, it can be concluded that <em>Senecio </em>extracts may be considered as natural sources in many industry such as food and pharmacy.</p>