Methyl Red Decolorization Efficiency of a Korea Strain of Aspergillus sp. Immobilized into Different Polymeric Matrices

Abstract

Intensive research studies have revealed that fungal decolorization of dye wastewater is a promising replacement for the current process of dye wastewater decolorization. The authors isolated an Aspergillus sp. from the effluent of a textile industry area in Korea and assessed the effects of a variety of operational parameters on the decolorization of methyl red (MR) by this strain of Aspergillus sp. This Aspergillus sp. was then immobilized by entrapment in several polymeric matrices and the effects of operational conditions on MR decolorization were investigated again. The optimal decolorization activity of this Aspergillus sp. was observed in 1% glucose at a temperature of 37 °C and pH of 6.0. Furthermore, stable decolorization efficiency was observed when fungal biomass was immobilized into alginate gel during repeated batch experiment. These results suggest that the Aspergillus sp. isolated in Korea could be used to treat industrial wastewaters containing MR dye.

Effects of adding isolated Lactobacillus plantarum, Leuconostoc mesenteroides, and their mixtures on the quality indices of pickled Chinese cabbage

“…Nitrate-reducing properties were determined by the survivability of the isolates on nitrate agar slants (Singh et al, 2013). The isolates were also evaluated in terms of physiological and biochemical indexes such as oxidase (Cobos et al, 2017), catalase activity (Singh et al, 2013), methyl red (Kim et al, 2017) and amylohydrolysis (Yarullina et al, 2015).…”