Three cellulase compositions were investigated for the bio-polishing of a cellulosic fabric. An acid cellulase complex, an endo-enriched cellulase, and a mono-component endoglucanase were compared based on their selectivity and sensitivity to process conditions. All cellulases have similar application pH and temperature ranges; however, their sensitivity to liquor ratio and to mechanical agitation differ significantly. The significance of their difference is addressed. For optimal bio-polishing performance, an enzyme product should be selected based on cellulase selectivity, existing equipment, and fiber type.
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