Biodegradation of pesticide triclosan by A. versicolor in simulated wastewater and semi-synthetic media

Tastan B., DÖNMEZ G.

PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY, cilt.118, ss.33-37, 2015 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 118
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1016/j.pestbp.2014.11.002
  • Dergi Adı: PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.33-37
  • Anahtar Kelimeler: Fungus, Triclosan, 2,4-dichlorophenol, Biodegradation, Wastewater treatment, DEGRADATION, TOXICITY, BIOREMOVAL, METALS, DYE
  • Gazi Üniversitesi Adresli: Evet

Özet

Triclosan is known as an antimicrobial agent, a powerful bacteriostat and an important pesticide. In this paper biodegradation of triclosan by Aspergillus versicolor was investigated. Effects of simulated wastewater and semi-synthetic media on fungal triclosan degradation process were detected. HPLC analysis showed that fungal triclosan biodegradation yield was 71.91% at about 7.5 mg/L concentration in semisynthetic medium and was 37.47% in simulated wastewater. Fungus could be able to tolerate the highest triclosan concentration (15.69 mg/L). The biodegradation yield was 29.81% and was 2.22 mg/g at this concentration. Some of the parameters, such as pH, culture media, increasing triclosan and biomass concentrations were optimized in order to achieve the effective triclosan biodegradation process. The highest triclosan biodegradation yields of all microorganisms were achieved by A. versicolor. (C) 2014 Elsevier Inc. All rights reserved.