The last two batches (8th and 9th), consisting only of an aqueous solution of the dye (150 mg/L, final concentration in the flasks), were also decolourised to a significant extent. Thus, a decolouration percentage around 50 and 40% was attained for the 8th and 9th batches, respectively, in 96 h. As for K1 cultures of T. pubescens ( Fig. 3B) the dye was not adsorbed onto the support (i.e. K1 carriers), so the decolouration was only due to fungal action. Decolouration percentages higher than 40% were attained except for the 2nd and 6th batches. Surprisingly, contrary to the SS cultures, the batches containing only dye (8th and 9th) were not

decolourised or hardly decolourised by K1 cultures. The dye Bezaktiv Blue showed less resistance to degradation by T. pubescens cultures than the dye Bemaplex LY294002 research buy Navy. Thus, as shown in Fig. 4A total dye decolouration was achieved in the 7th batch by SS cultures of T. pubescens. As in Bemaplex decolouration, in the first four batches the decolouration was due to two phenomena: adsorption onto the support selleck antibody (i.e. SS) and fungal action and from the 5th batch onwards decolouration was only due to fungal action. The last two batches (8th and 9th), which consisted only of an aqueous solution of the dye (150 mg/L,

final concentration in the flasks), also showed significant decolouration. Thus, a decolouration percentage around 59 and 37% was attained in the 8th and 9th batches, respectively, in 96 h ( Fig. 4A). As for the K1 cultures, high decolouration percentages were attained in all the batches (between 74 and 90%) except for the last one (Fig. 4B). Surprisingly, these decolouration percentages are higher than that obtained by SS cultures. This is likely due to differences in the isoenzymatic complex secreted by T. pubescens when grown under different conditions. This shows that dye affinity is different for different isoenzymatic complexes, underlining the influence of the support on the efficiency of each particular process. Meloxicam Recently, Kumar et al. [8] studied

the laccase production and textile effluent decolouration by the white-rot fungus Coriolus versicolor immobilised on different supports under SSF conditions and found that the characteristics of the supporting material played an important role in both decolouration and laccase activity. Amongst the different supports tested, they found that the K carriers led to the highest laccase production (2600 U/L on the 14th cultivation day) and effluent decolouration (73% on the 12th cultivation day.) Dye adsorption onto the mycelium of heat-killed controls was observed with the naked eye. However, in living cultures the dyes were adsorbed onto the fungal mycelium (biosorption) and subsequently the dyed mycelium was bleached along cultivation. This was likely due to both extracellular enzymes (i.e.