Abstract
Polyethylene, as the predominant polymer produced globally, poses significant environmental challenges due to its resistance to natural decomposition. In this study, we introduce an innovative chemicalbiological approach for transforming waste polyethylene into valuable biosurfactants. Our method involves hydrogenolysis using specially designed Ru/CeO2 catalysts, which efficiently convert polyethylene into alkanes while keeping methane selectivity below 5 %. This optimization ensures maximum feed availability for subsequent microbial processes. Notably, the produced chemical intermediates are directly utilized in the biological phase, eliminating the need for intermediate processing. Gordonia sp. JW21, selected for its exceptional alkane degradation capabilities, efficiently metabolizes a wide range of alkane structures, including extended alkyl chains. The microbial process culminates in the generation of high-value biosurfactants. This synergistic strategy not only offers an effective solution for polyethylene waste management but also sets a precedent for the sustainable production of biosurfactants.
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