Deciphering azo dye decolorization characteristics by indigenous Proteus hauseri: Chemical structure

This study selected indigenous Proteus hauseri ZMd44 as a model bacterium to explore how chemical structure affected dye decolorization characteristics in comparison with other biodecolorizers. No matter what naturally-existing decolorizer strain was used (e.g., Pseudomonas luteola, Aeromonas hydrophila and P. hauseri), chemical structures of azo dyes (e.g., molecular isomers or the presence of different functional groups) apparently affected the performance of dye biodecolorization (e.g., biodegradability). That is, complete deciphering on azo dye decolorization characteristics of naturally-existing biodecolorizers disclosed which “biodegradable” dye(s) are environmentally-friendly to be used in industry for sustainable development.