ISOLATION, CHARACTERIZATION AND DECOLOURIZATION OF SYNTHETIC TEXTILES DYES BY THERMOPHILIC HALOPHILIC ACTINOMYCETES SPECIES
ABSTRACT
Two hundred and forty isolates were found in cow dung, compost, and soil from burnt animal hides and skin. Three isolates with the letters A1, A7, and A43 showed distinct zones of inhibition typical of actinomycetes. By examining the colony morphology, cover slip culture methods, carbon utilization potentials, gram staining reaction, and amylase activity, the isolates were further characterized. On solid medium supplemented with starch, the -amylase activity was measured. The formation of clear zones around the colonies when they were flooded with iodine was used to detect the isolates’ -amylase activity. The isolates’ capacities for decolorization were also identified. The isolates demonstrated good dye degrading and absorption properties for Congo red and brilliant green. It demonstrated the potential of actinomycetes. They are effective biosorbents and dye decolorizers.