Cited by 170biodegradable polymer synthesis and propertiesMicroplastics and Plastic PollutionMicrobial bioremediation and biosurfactants

Deterioration of bioplastic carrier bags in the environment and assessment of a new recycling alternative

Accinelli, Cesare, Saccà, Maria Ludovica, Mencarelli, Mariangela, Vicari, Alberto·2012·Chemosphere

Abstract

Increasing environmental concerns and the introduction of technologies based on renewable resources have stimulated the replacement of persistent petroleum-derived plastics with biodegradable plastics from biopolymers. As a consequence, a variety of products are currently manufactured from bioplastic, including carrier bags. This series of studies investigated the deterioration of carrier bags made with Mater-Bi (MB), a starch-based bioplastic, in soil, compost and two aquatic ecosystems, a littoral marsh and seawater. Results from the laboratory study indicated that bioplastic carrier bags were rapidly deteriorated in soil and compost. After three months of incubation, weight loss of specimens was of 37% and 43% in soil and compost, respectively. Conversely, little deterioration was observed in specimens buried in soil under field conditions or exposed to water of a littoral marsh and of the Adriatic Sea. These findings were consistent with the greater number of bacteria and especially fungi capable of degrading MB that were recovered from soil and compost with respect to the two aquatic ecosystems. Considering that a variety of microbial isolates are capable of using MB as a source of carbon, a new alternative to recycle these MB-based carrier bags was explored. More specifically, starchy residues from bags were fermented by the fungus Rhizopus oryzae to produce up to 35 mg of lactic acid per g of bag residues.

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Crossref · 10.1016/j.chemosphere.2012.05.028

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  • Weight loss of almost 40% has been observed in plastics buried in soil.

    “Weight loss of almost 40% has been observed in plastics buried in soil (Accinelli et al., 2012), while Müller et al. (2012) estimated degradation rates between 3 and 9% for biodegradable bags in simulated sea turtle gastrointestinal conditions.”

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Authors
Accinelli, C., Saccà, M. L., Mencarelli, M., & Vicari, A.
Affiliations
University of Bologna (IT)
Corresponding author
Accinelli, Cesare
Venue
Chemosphere
Publisher
Elsevier BV
Published
2012-09
Volume
89
Issue
2
Pages
136-143
ISSN
0045-6535 (ISSN-L)
OpenAlex
W1997508253
Cited by
170
References
37
Citations by year
2026: 5 · 2025: 14 · 2024: 20 · 2023: 19 · 2022: 19 · 2021: 27 · 2020: 23 · 2019: 14 · 2018: 6 · 2017: 10 · 2016: 5 · 2015: 3 · 2014: 2 · 2013: 3
FWCI
1.04
Type
journal article
Language
en
Open access
closed
Locations
  • Chemosphere (publishedVersion)
  • PubMed (publishedVersion)
  • Archivio istituzionale della ricerca (Alma Mater Studiorum Università di Bologna) (submittedVersion)
Topics
  • Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
  • Physical Sciences › Environmental Science › Pollution › Microplastics and Plastic Pollution
  • Physical Sciences › Environmental Science › Pollution › Microbial bioremediation and biosurfactants
Keywords
Mater-Bi, starch-based bioplastics, biodegradation, composting, soil degradation, marine degradation, seawater, microbial degradation, fungi, bacteria, bioplastic recycling, Rhizopus oryzae, lactic acid production, fermentation
MeSH terms
Bacteria, Biodegradation, Environmental, Environment, Environmental Pollution, Fungi, Oceans and Seas, Plastics, Soil, Starch, Lactic Acid, Wetlands, Recycling

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