The present invention pertains to a method for producing high value-added compounds from polyethylene terephthalate. More specifically, the present invention demonstrates that a monomeric terephthalic acid obtained from the chemical hydrolysis of polyethylene terephthalate can be converted to high value-added aromatic compounds and aromatic-derived compounds, and ethylene glycol, which is another monomer of polyethylene terephthalate, can be converted to glycolic acid, which is a cosmetic material. The present invention is characterized by recycling polyethylene terephthalate waste into high value-added compounds.

Methods for deconstructing polyester-cotton blended textile waste and biodegradable polyester packaging waste using microbial cells for the fermentative production of polyhydroxybutyrate (PHB), novel engineered Halomonas strains, and use of these strains in PHB production. An engineered microbial cell and compositions comprising PHB are also described.