Journal of Microbial & Biochemical Technology

Mirna H R Seleghim

Publications

• Research Article
  Biodegradation of Chlorpyrifos by Whole Cells of Marine-Derived Fungi Aspergillus sydowii and Trichoderma sp
  Author(s): Natália Alvarenga, Willian G Birolli, Marcia Nitschke, Maria Olimpia de O Rezende, Mirna H R Seleghim and André L M PortoNatália Alvarenga, Willian G Birolli, Marcia Nitschke, Maria Olimpia de O Rezende, Mirna H R Seleghim and André L M Porto
  
  This paper describes the screening of the growth of seven marine-derived fungi strains in the presence of chlorpyrifos in solid medium. The strains that showed best growth were A. sydowii CBMAI 935 and Trichoderma sp. CBMAI 932. Biodegradation reactions were performed in 10, 20 and 30 d in liquid medium containing commercial chlorpyrifos and mycelia from the selected strains. In 30 d, A. sydowii CBMAI 935 and Trichoderma sp. CBMAI 932 were able to degrade on average 63% and 72% of chlorpyrifos, respectively, and reduce the concentration of 3,5,6-trichloro-2-pyridinol, the metabolite formed by the enzymatic hydrolysis of chlorpyrifos. In 30 d, A. sydowii CBMAI 935 and Trichoderma sp. CBMAI 932 could use chlorpyrifos as sole source of carbon with low biodegradation percentages, 24% and 5%, respectively. Spontaneous hydrolysis was evaluated in malt medium, wi.. View More»
  DOI: 10.4172/1948-5948.1000194

  Abstract PDF