Evaluation of antioxidant, antiradicalic and antimicrobial activities of kernel date (fructus dactylus)

Celik H., Kucukoglu K., NADAROĞLU H., Senol M.

Journal of Pure and Applied Microbiology, cilt.8, sa.2, ss.993-1002, 2014 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 8 Sayı: 2
  • Basım Tarihi: 2014
  • Dergi Adı: Journal of Pure and Applied Microbiology
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.993-1002
  • Atatürk Üniversitesi Adresli: Evet

Özet

In order to determine the antioxidant and radical scavenging properties of kernel date (Fructus dactylus) the following analysis were conducted: The total antioxidant activity via the ferric thiocyanate method; 2,2'-azinobis-(3-ethylbenzothiazole- 6-sulphonate) (ABTS) radical scavenging activity; superoxide anion radical (O2•-) scavenging activity; the total reduction power through potassium ferricyanide reduction method; Cupric ions (Cu2+) reduction capacity through Cuprac method; hydrogen peroxide scavenging activity and chelating activity of ferrous ions (Fe2+). Additionally, total phenolic and flavonoid contents of the kernel of date (KD) (Fructus dactylus) were determined. Furthermore, α-tocopherol, butylated hydroxyanisole (BHA) and quercetin were used as the reference antioxidant compounds. Both KD-Aquous extract and KD-ethanol extract exhibited the highest phenol (KD-AE:107; KD-EE237 μg GAE mg-1 extract) and flavonoid (KD-AE:210; KD-EE:236 μg QE mg-1 extract) contents and displayed the highest antioxidant activity. KD-AE and KD-EE exhibited high antibacterial activitiy against eleven bacteria with Minimum Inhibitory Concentrations (MIC) values ranging from 12.50 to 250 mu l/ ml.