The potential of copper-resistant bacteria Acinetobacter sp. strain CN5 in decolorizing dyes

Abstract. Irawati W, Pinontoan R, Mouretta B, Yuwono T. 2021. The potential of copper-resistant bacteria Acinetobacter sp. strain CN5 in decolorizing dyes. Biodiversitas 23: 680-686. Bacteria with multi-resistance to copper and dyes may be employed bioremediation dye waste more effectively than physical or chemical remediation. This study aims at determining the effect addition various textile on growth its ability decolorize resistance test was carried out by inoculating bacterial isolates into Luria Bertani media containing 50, 100, 150, 200, 250, 300, 350, 400, 450, 500 ppm twelve used were methylene blue, malachite green, congo red, mordant orange, reactive black, direct yellow, basic fuchsine, dispersion remazol wantex red. decolorization activity analyzed spectrophotometry a 300-900 nm wavelength. results demonstrated that thrived 50 all dyes, except green dye. found resistant up red 450 ppm. also able 57.64%, 53.17%, 91.37%, 67.50%, respectively. 5 mM CuSO4 medium increased from 57.64% 82.58%.