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<p>Microplastic pollution is one of the most widely researched environmental challenges and an ecological niche that is not yet fully understood. Plastics encompass a wide range of polymers, yet most studies have concentrated on the most commonly available types. In this study, we examine the plastic-degrading component of the microplastic plastisphere and assess their potential to degrade Nylon 6,9 monofilament using a CO<sub>2</sub> evolution test. 33 bacterial isolates were characterised consisting of 9 distinct potentially plastic degrading bacteria. Three species namely <i>Bacillus tropicus</i>, <i>Oceanisphaera sediminis</i>, and <i>Vreelandella venusta</i> were evaluated for their ability to degrade nylon 6,9 over a 30-day period, showing degradation rates of 0.76%, 0.61%, and 0.14%, respectively. These results depict the occurrence of multiple different species of plastic degrading bacteria within the plastisphere.</p>

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An Evaluation of Nylon 6,9 Biodegradation by Bacteria Isolated from Marine Plastisphere Communities

  • 期刊论文

  • 发表日期：

    2026年6月23日

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  • Yazad R. Patel,
  • Soumyadeep Mani,
  • Raju Mohanraju

摘要

Microplastic pollution is one of the most widely researched environmental challenges and an ecological niche that is not yet fully understood. Plastics encompass a wide range of polymers, yet most studies have concentrated on the most commonly available types. In this study, we examine the plastic-degrading component of the microplastic plastisphere and assess their potential to degrade Nylon 6,9 monofilament using a CO2 evolution test. 33 bacterial isolates were characterised consisting of 9 distinct potentially plastic degrading bacteria. Three species namely Bacillus tropicus, Oceanisphaera sediminis, and Vreelandella venusta were evaluated for their ability to degrade nylon 6,9 over a 30-day period, showing degradation rates of 0.76%, 0.61%, and 0.14%, respectively. These results depict the occurrence of multiple different species of plastic degrading bacteria within the plastisphere.