**5.5 Removal of excess dye**

The dye removal process from over dyed fabric is called as "back stripping" or "destructive stripping". Bio-enzymes used for decolorization is lignin peroxidase, manganese peroxidase and laccase. Previous studies have been investigated for color stripping from dyed textile fabric by microbial strains and their non-specific enzymatic system. The catalase enzymes from *G. lucidum* showed the ability for color stripping from the reactive black B dyed cotton fabric (**Table 13**) [120, 121].

The enzymes used for textile ETP are laccase, manganese peroxidase, lignin peroxidase and tyrosinase. These enzymes can catalyze the chlorinated phenolic compounds and halogenated organic compounds [122].


**Table 12.**

*Bleach clean-up process on cotton fabric and dyeing effect.*

**Table 13.** *Bio-stripping process on dyed cotton fabric.*

**Table 14.** *Bio-polishing process on cotton fabric.*
