Transgenic animals and preparations thereof for bioremediation

There is provided a transgenic insect comprising a heterologous nucleic acid encoding a fungal laccase wherein the heterologous nucleic acid is integrated in the insect genome, wherein the heterologous nucleic acid is operably linked to a promoter, and expression of the laccase allows for production of an active fungal laccase in the insect. The insect or laccase preparations comprising meal or powder made from the insect are used to reduce or remove phenolic contaminants (such as BPA) or aromatic components (such as indigo dyes) from waste.