The role of the copper-binding enzyme - laccase - in the biodegradation of polyethylene by the actinomycete Rhodococcus ruber

► Polyethylene-degrading strain of the actinomycete Rhodococcus ruber showed laccase activity. ► This strain was found capable of reducing the molecular weight of polyethylene. ► Copper affected the activity and induction of laccase, leading to increase the biodegradation. ► Biodegradation of polyethylene further demonstrated by the oxidation of the polymer.