RESPIROMETRIC ANALYSIS FOR MONITORING MICROBIAL ACTIVITY DURING TEREPHTHALIC ACID TRANSFORMATION

Plastic pollution is a major challenge, with polyethylene terephthalate (PET) among the most prevalent. Terephthalic acid (TPA), a key monomer from PET depolymerization, can be toxic and persistent, posing environmental risks. However, some microbial species have demonstrated the ability to utilize TPA, opening avenues for bioremediation and recycling. This work investigates microbial consortium and pure microbial strains isolated from polluted soil and sediment to transform TPA. Microbial activity was monitored using a respirometer, and TPA transformation using HPLC. Elucidating pathways for TPA breakdown can enhance bioremediation processes and promote sustainable plastic waste management.