Chromium (III) Biosorption of Deinococcus radiodurans and Its Vitreoscilla Haemoglobin (vgb) Gene-Transferred Recombinants

Ozbey E., Asma D.

Journal Of Pharmacy And Pharmacology, cilt.9, ss.140-148, 2021 (SCI-Expanded)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 9
  • Basım Tarihi: 2021
  • Doi Numarası: 10.17265/2328-2150/2021.04.003
  • Dergi Adı: Journal Of Pharmacy And Pharmacology
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, Biotechnology Research Abstracts, CAB Abstracts, Chemical Abstracts Core, EMBASE, International Pharmaceutical Abstracts, MEDLINE, Veterinary Science Database
  • Sayfa Sayıları: ss.140-148
  • İnönü Üniversitesi Adresli: Evet

Özet

This study used Deinococcus radiodurans, which is extremely resistant to oxidative damage, genotoxic

chemicals, high levels of ionising and ultraviolet radiation and drying, and its Vitreoscilla haemoglobin (vgb) gene-cloned

recombinant with the vgb− recombinant strain as a control. In addition to the conditions wherein bacteria have an optimum Cr (III)

biosorption capacity, the contribution of the vgb gene to the biosorption ability of the bacteria has been investigated by providing the

organism with a more oxygenic environment. Methods: Bacteria were produced and metal stock solution was prepared. To

determine the Cr (III) removal capacities of wild and recombinant D. radiodurans strains, the residual metal concentration in aqueous

media at the beginning and after biosorption was determined in Atomic Absorption Spectrophotometer. Some optimal conditions

were created for the biosorption conditions to occur. Conclusions: The optimisation tests showed that Cr (III) reached the highest

biosorption capacity within 15 minutes at a metal concentration of 2,000 ppm, 30 °C, pH 5.0 and 150 rpm stirring speed in all the

three bacteria. The vgb gene had no significant contribution to the biosorption capacity.