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<p>The growing demand for biodegradable polymers as sustainable alternatives to conventional plastics underscores the need for effective tools to monitor their environmental dispersion. Detecting bioplastics through remote sensing techniques poses a challenge because, unlike conventional plastics, bioplastics can undergo environmental degradation, potentially altering their spectral signatures and limiting their detectability. A laboratory experiment was conducted to assess the applicability of spectroradiometric techniques for identifying and distinguishing these materials under natural conditions. Two commercial polylactic acid (PLA)-based materials were subjected to pseudo-marine degradation conditions, and their spectral signatures were recorded throughout the degradation period. Infrared (IR) characterisation highlighted differences in the polymeric structure of the two materials. These peculiarities were detected through spectroradiometric analyses that successfully distinguished and characterised the two commercial products after 6 months of exposure to degradation conditions. This study demonstrates that spectroradiometry provides a reliable, cost-effective method for monitoring and distinguishing between various plastic and bioplastic types, supporting waste management and environmental monitoring efforts.</p>

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Degradation of bioplastic in marine water by microorganisms: chemical and spectroradiometric analyses to assess a future protocol

  • 期刊论文

  • 发表日期：

    2026年1月30日

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  • Laura Corbari,
  • Marcella Barbera,
  • Laura Scirè Calabrisotto,
  • Valentina Catania,
  • Giuseppe Ciraolo,
  • Filippo Saiano,
  • Daniela Piazzese

摘要

The growing demand for biodegradable polymers as sustainable alternatives to conventional plastics underscores the need for effective tools to monitor their environmental dispersion. Detecting bioplastics through remote sensing techniques poses a challenge because, unlike conventional plastics, bioplastics can undergo environmental degradation, potentially altering their spectral signatures and limiting their detectability. A laboratory experiment was conducted to assess the applicability of spectroradiometric techniques for identifying and distinguishing these materials under natural conditions. Two commercial polylactic acid (PLA)-based materials were subjected to pseudo-marine degradation conditions, and their spectral signatures were recorded throughout the degradation period. Infrared (IR) characterisation highlighted differences in the polymeric structure of the two materials. These peculiarities were detected through spectroradiometric analyses that successfully distinguished and characterised the two commercial products after 6 months of exposure to degradation conditions. This study demonstrates that spectroradiometry provides a reliable, cost-effective method for monitoring and distinguishing between various plastic and bioplastic types, supporting waste management and environmental monitoring efforts.