A facile biodegradation of polystyrene microplastic by Bacillus subtilis

Abstract: The extensive application of polystyrene (PS) in the industry and the release of polystyrene microplastics (PS-MPs) in the environmental compartments has raised global concerns. The ability of microbes to utilize PS as a carbon source has been currently established. This study utilized Bacillus subtilis (ATCC 11774) to break down environmentally relevant sized PS-MPs (5 µm) with and without abiotic (thermal and UV radiations) pretreatment for a period of 4 weeks. The biodegradation rate was validated using UV–visible (UV–Vis) and Fourier transform infrared (FTIR) spectrophotometry, scanning electron microscopy coupled with EDX analysis. After 4 weeks, all inoculated PS-MP samples with and without pretreatment showed marked changes in the UV–vis spectra in comparison to the pristine PS-MPs. Additionally, FTIR spectra displayed surface modifications of functional groups in all inoculated samples linked to chain scission/oxidation were highlighted by a notable increase in the carbonyl index during biodegradation. SEM micrographs confirmed the marked fragility of the particles, and a probable oxidation degree was evaluated as an atomic O/C ratio that corroborates the biodegradative potential of B. subtilis. The core finding underscores that B. subtilis can grow on, alter, and use PS as a carbon source, either with or without abiotic pretreatment, emphasizing the role of biological pathways as a sustainable strategy for plastic waste management.

Angaben zum Objekt

• Standort: Deutsche Nationalbibliothek Frankfurt am Main
• Umfang: Online-Ressource
• Sprache: Englisch

Verweise und Beziehungen

• Erschienen in: A facile biodegradation of polystyrene microplastic by Bacillus subtilis ; volume:14 ; number:1 ; year:2025 ; extent:18 ; Green processing & synthesis ; 14, Heft 1 (2025) (gesamt 18)

Beteiligte, Orts- und Zeitangaben

• Urheber: Al-Otaibi, Norah Raqi ; Virk, Promy ; Elsayim, Rasha ; Amin, Mohammed Elbagir ; Alshammari, Asma Mudhahi ; Al Sudairi, Alanoud Tariq ; Almohawis, Nada Ali ; Fouad, Dalia ; Awad, Manal A. ; Al-Odayni, Abdel-Basit ; Albasher, Gadah

Weitere Informationen

• DOI: 10.1515/gps-2024-0153
• URN: urn:nbn:de:101:1-2502120451145.570348328280
• Rechteinformation: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Letzte Aktualisierung: 15.08.2025, 07:25 MESZ