As mentioned above, apart from the experiments under MF three control experiments (CE) were performed under identical conditions but without the application of MF. The results of CE were used to compare them to those of the exposed cultures in order to draw conclusions concerning the effects of the MF applied. For these CE, biomass concentration, GSH yield and specific GSH yield were 13.57 g/L, 244.7 mg/L and 18.0 mgGSH/gbiomass, for 72 h of incubation, respectively.At 48 h, the results of GSH yield and biomass concentrations were 116.1 mg/L and 10.13 g/L, respectively