Enzyme based cleavage strategy of Bacillus lentus BI377 in response to metabolism of azoic recalcitrant

► Elucidation on enzyme dependant color removal strategy by Bacillus lentus BI377. ► Decolorization of diazo Reactive Red 141 was foremost than monoazo Reactive Red 2. ► Azoreductase cleaves azo bond in diazo RR141 whereas peroxidase mediated in RR2. ► Intermediate metabolites of RR2 and RR141 lead to mineralization via TCA cycle.