Evaluation of toxicity and degradation of a chlorophenol mixture by the laccase produced by Trametes pubescens

Physiological Characterization of Fungal Inoculum for Biotechnological Remediation of Soils

“…RBBR de-coloration's kinetics employed to identify the ligninolytic system's total action in the de-coloration of the anthrachinonic colorant showed positive results. The similarity of laccase and RBBR de-coloration enzymatic profile proved the hypothesis that laccase was the main oxidase involved in pentachlorophenol degradation, rendering it an important biotechnological tool, which was also observed by other authors, including in degradation studies (Jeon et al 2008;Moreira Neto et al 2009;Cañas e Camarero 2010;Majeau et al 2010;Niebisch et al 2010;Gaitan et al 2011;Ding et al 2012;Eichlerová et al 2012;Moldes et al 2012;Pardo et al 2012;Ueda et al 2012;Janusz et al 2013;Manavalan et al 2013). Laccase production, with concomitant Mndependent peroxidase production showed that such enzymatic activities might be involved in the in vivo pentachlorophenol degradation under the assessed conditions, since the highest enzymatic activities in the PCP-soil were observed in the treatments with the highest degradation rates.…”

Stimulation of laccases from Trametes pubescens: Use in dye decolorization and cotton bleaching

“…The maximal enzymatic production occurred during the second week of culturing, and corresponded to the rising of pH to neutral values (from 3.8 to 7.6) and to complete depletion of glucose from the culture medium (only 1% left of the initial concentration at 13 th day). This culture evolution has been already observed by other authors (3,(16)(17), introducing the energy-saving response as one of the possible explanation to this phenomenon. It has been suggested (21) that only in starvation condition, the sustenance of the culture passes by alternative carbon sources and the expression of some proteins (i.e.…”

“…The activity half-life (t 1/2 ) at 50 °C was 14 h, being much better than most of the data in literature, which range from few minutes to several hours: 40 min in P. sajor-caju (28), 4.5 h in Panus tigrinus (31) and more than 8 h in T. versicolor and T. pubescens (3,30). Only few studies reported more stable enzymes at 50 °C: for example, the t 1/2 of purified laccases of Trametes ochracea, Trametes hirsuta, Cerrena maxima and Coriolopsis fulvocinerea was closed to 50 h (32).…”

“…(1). Trametes species are generally good laccase producers, able to transform several xenobiotics (2)(3)(4).…”

Enzyme Initiated Radical Polymerizations

“…Likewise halophenols [178][179][180][181][182] bisphenol A, [183][184][185] various hormones and so-called endocrine disrupting compounds [186][187][188] or even TNT [189,190] have been reported. Non-phenolic compounds may be ‗inactivated' using the LMS or PMS strategy [36,[191][192][193][194][195][196][197][198].…”