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Table 1 Characteristics of dyes tested in this work

From: Kinetic study of a β-mannanase from the Bacillus licheniformis HDYM-04 and its decolorization ability of twenty-two structurally different dyes

Dyes Type λmax (nm) Chemical formular
Orange G6 Azo 469 C16H10N2Na2O7S2
Orange I Azo 467 C16H12N2O4S·Na
Methyl orange Azo 461 C14H15N3NaO3S
Ponceau S Azo 501 C13H9N3NaO5
Alizarin yellow R Azo 373 C22H14N6Na2O9S2
Solvent red 24 Azo 232 C24H20N4O
Amaranth Azo 508 C34H32ClN3NaO6S2
Chromotrope 2R Azo 504 C16H10N2Na2O8S2
Alizarin Anthraquinone 417 C14H7NaO7S
Methylene blue Anthraquinone 682 C16H18N3ClS
Fast green3 Triaromatic methane 618 C37H34N2O10S3Na2
Aniline blue Triaromatic methane 582 C32H25N3Na2O9S3
Coomassie brilliant blue Triaromatic methane 595 C45H44N3O7S2Na
Brilliant green Triaromatic methane 623 C27H34N2O4S
Eosin  Triaromatic methane 522 C20H6Br4Na2O5
Water-soluble melanin Cyanine 533 C24H19N4
Eosin Y Three aryl methyl 523 C36H27N3O5Br4S
Bromothmol blue Three aryl methyl 420 C27H28Br2O5S
Bromophenol blue Three aryl methyl 422 C19H10Br4O5S
5,5′-Dibromo-o-cresolsulfonphthalein Three aryl methyl 648 C21H16Br2O5S
Safranine T Heterocyclic 530 C20H19N4Cl
Neutral red Heterocyclic 440 C15H17ClN4