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The Fate of Biodegradable Plastic Items Under Conditions of State-of-the-Art Composting

Titelangaben

Leitner, Lisa-Cathrin ; Steiner, Thomas ; Greiner, Andreas ; Freitag, Ruth:
The Fate of Biodegradable Plastic Items Under Conditions of State-of-the-Art Composting.
In: Microplastics. Bd. 4 (4 September 2025) Heft 3 . - 59.
ISSN 2673-8929
DOI: https://doi.org/10.3390/microplastics4030059

Volltext

Link zum Volltext (externe URL): Volltext

Angaben zu Projekten

Projekttitel:
Offizieller Projekttitel
Projekt-ID
SFB 1357: MIKROPLASTIK – Gesetzmäßigkeiten der Bildung, des Transports, des physikalisch-chemischen Verhaltens sowie der biologischen Effekte: Von Modell- zu komplexen Systemen als Grundlage neuer Lösungsansätze
391977956
BabbA - Biologisch abbaubare Beutel in der Bioabfallverwertung
128690
Open Access Publizieren
Ohne Angabe

Projektfinanzierung: Deutsche Forschungsgemeinschaft
Ministerium für Umwelt, Klima und Energiewirtschaft Baden-Württemberg

Abstract

Biodegradable plastics are increasingly proposed as environmentally friendly alternatives for disposable dishes or glasses in addition to their more conventional uses as foils and in bags. If produced from certified degradable materials, such items are expected to degrade rapidly during state-of-the-art composting. However, conditions prescribed for the testing and certification of materials differ from those typically applied in industrial composting, and operators of the corresponding plants have found that degradation is incomplete. In this study the degradation of commercially available biodegradable bags as well as disposable sparkling wine glasses was studied in a series of pilot-scale composting campaigns closely mimicking state-of-the-art composting conditions. The materials were characterized regarding their chemical composition, structure, and crystallinity, as well as the changes thereof throughout the process. Evidence is given that parameters such as crystallinity change significantly during composting, which may inhibit breakdown during the process and thus have unknown consequences for the subsequent environmental impact.

Weitere Angaben

Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Zusätzliche Informationen: Publisher: Multidisciplinary Digital Publishing Institute
Keywords: biodegradation; compost; crystallinity; PBAT; PLA
Institutionen der Universität: Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Lehrstuhl Makromolekulare Chemie II > Lehrstuhl Makromolekulare Chemie II - Univ.-Prof. Dr. Andreas Greiner
Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Bioprozesstechnik > Lehrstuhl Bioprozesstechnik - Univ.-Prof. Dr. Ruth Freitag
Titel an der UBT entstanden: Ja
Themengebiete aus DDC: 500 Naturwissenschaften und Mathematik > 540 Chemie
600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften
Eingestellt am: 05 Sep 2025 07:34
Letzte Änderung: 05 Sep 2025 08:14
URI: https://eref.uni-bayreuth.de/id/eprint/94595