Bio-factories converting polyethylene.

This proposal aims at confirming/contradicting recently discovered (Bombelli et al., Current Biology 2017) accelerated biochemical conversion of low density polyethylene (LDPE) by larvae of the greater wax moth Galleria mellonella, and investigate the nature and yield of metabolites. Strong concerns about the validity of these findings were published immediately thereafter (Weber et al., Current Biology 2017). The proposed research will employ an improved analytical setup, using blank and sterile samples, while analyzing composite homogenate/LDPE samples, and additionally will focus on a mechanistic understanding of the conversion process. In case of a positive result, this research will initiate further efforts to establish new biochemical recycling processes for polyolefins, in a time at which mechanical recycling is faced with its limitations. Yet, in case of disproval of state-of-the-art literature, the proposed research allows to join a running scientific discussion, and will generate knowledge and expertise on biochemical polyolefin degradation, or alkane functionalization in a broader perspective.

Keywords:BIOCONVERSION, RECYCLING, POLYETHYLENE

Disciplines:Sustainable chemistry, Biochemistry and metabolism, Aquatic sciences, challenges and pollution, Environmental science and management, Medical biochemistry and metabolism