Biodegradation of plastic bottles made from ‘Biopol’ in an aquatic ecosystem under in situ conditions
@article{Brandl2004BiodegradationOP, title={Biodegradation of plastic bottles made from ‘Biopol’ in an aquatic ecosystem under in situ conditions}, author={Helmut Brandl and Petra P{\"u}chner}, journal={Biodegradation}, year={2004}, volume={2}, pages={237-243} }
Experiments have been carried out in Lake Lugano, Switzerland, in order to study the biodegradation of poly(3-hydroxyalkanoates) (PHA) in an aquatic ecosystem under natural conditions. Commercially available plastic articles made from PHA, such as bottles and films, were incubated for 254 days in a water depth of 85 m. Shampoo bottles were positioned precisely on the sediment surface by the use of a small manned submarine. A set of bottles was attached to a buoy in order to incubate plastic…
44 Citations
Field and mesocosm methods to test biodegradable plastic film under marine conditions
- Environmental SciencebioRxiv
- 2020
Together with the existing laboratory standard test methods, the field and mesocosm test systems presented in this work provide a 3-tier testing scheme for the reliable assessment of the biodegradation of (biodegradable) plastic in the marine environment.
Field and mesocosm methods to test biodegradable plastic film under marine conditions
- Environmental SciencePloS one
- 2020
Together with the existing laboratory standard test methods, the field and mesocosm test systems presented in this work provide a 3-tier testing scheme for the reliable assessment of the biodegradation of (biodegradable) plastic in the marine environment.
The rate of biodegradation of PHA bioplastics in the marine environment: A meta-study.
- Biology, Environmental ScienceMarine pollution bulletin
- 2019
Field and mesocosm test methods to assess the performance of biodegradable plastic under marine conditions
- Environmental Science
- 2020
Abstract The pollution of the natural environment, especially the world’s oceans, with conventional plastic is of major concern. Biodegradable plastics are an emerging market bringing along potential…
Biodegradation of Polyhydroxyalkanoates in Natural Water Environments
- Environmental Science, Engineering
- 2015
The review reports studies of PHA biodegradation behavior in natural freshwater and marine environments. The factors determining polymer degradation rates in water basin include the temperature and…
Biodegradability standards for carrier bags and plastic films in aquatic environments: a critical review
- Environmental ScienceRoyal Society Open Science
- 2018
It is argued that current standards and test methods are insufficient in their ability to realistically predict the biodegradability of carrier bags in aquatic environments, due to several shortcomings in experimental procedures and a paucity of information in the scientific literature.
Anaerobic biodegradation of polyhydroxybutyrate in municipal sewage sludge.
- Engineering, Biology
- 2010
Thermal properties, molecular bonding, and molecular weight measured by differential scanning calorimetry, Fourier transform infrared, and size exclusion chromatography, respectively, were only slightly affected by biodegradation, indicating that recycling PHB will not affect its performance.
Degradation of microbial polyester poly(3-hydroxybutyrate) in environmental samples and in culture
- EngineeringBiodegradation
- 2004
Poly(3-hydroxybutyrate) test-pieces prepared from the polymer produced by Azotobacter chroococcum were degraded in natural environments like soil, water, compost and sewage sludge incubated under laboratory conditions and showed different degrees of degradation in polymer overlayer method.
Microplastic-Associated Biofilms: A Comparison of Freshwater and Marine Environments
- Environmental Science
- 2018
Microplastics (<5 mm particles) occur within both engineered and natural freshwater ecosystems, including wastewater treatment plants, lakes, rivers, and estuaries. While a significant proportion of…
Aerobic Biodegradation of Polyhydroxybutyrate in Compost
- Engineering, Materials Science
- 2011
Abstract Aerobic biodegradation of polyhydroxybutyrate (PHB) was investigated. Mass loss experiments were performed to determine degradation kinetics. Tributyl citrate was blended with some test…
References
SHOWING 1-10 OF 26 REFERENCES
Evaluation and application of dialysis porewater samplers for microbiological studies at sediment-water interfaces
- Environmental ScienceAquatic Sciences
- 2004
The equilibrium diffusion technique has become a valuable tool for ecological and biogeochemical studies in aquatic environments. In sediment ecosystems, changes in concentration of microbial…
Plastics from bacteria and for bacteria: poly(beta-hydroxyalkanoates) as natural, biocompatible, and biodegradable polyesters.
- Materials ScienceAdvances in biochemical engineering/biotechnology
- 1990
Hence, PHB belongs to the family of poly(beta-hydroxyalkanoates), PHA, all of which are usually formed as intracellular inclusions under unbalanced growth conditions. Recently, it became of…
On the biodegradation of poly-β-hydroxybutyrate (PHB) homopolymer and poly-β-hydroxybutyrate-hydroxyvalerate copolymers
- Materials Science, Engineering
- 1987
Decomposition of Poly-β-Hydroxybutyrate by Pseudomonads
- Biology
- 1965
Pseudomonas lemoignei Delafield constitutively produces extracellular digestive enzymes that hydrolyze the polymer to a mixture of d-β-hydroxybutyrate and the dimeric ester of this acid, as well as an intracellular “dimer hydrolase” which hydrolyzes the dimer ester.
Acid-tolerant poly(3-hydroxybutyrate) hydrolases from moulds
- Biology
- 1988
An improved assay method using a pH stat has been developed, and used to determine the dependence of reaction rate on enzyme and polymer concentrations, and the implications of these kinetic properties of the PHB hydrolase for its mode of action are discussed.
Purification and properties of extracellular poly(3-hydroxybutyrate) depolymerases from Pseudomonas lemoignei.
- BiologyBiochimica et biophysica acta
- 1985
Applications of PHB - a microbially produced biodegradable thermoplastic
- Engineering
- 1985
ICI has recently made available a new range of environmentally degradable thermoplastics made by bacteria from renewable substrates. Potentially the next generation of commodity plastics, these are…
Polymers for biodegradable medical devices. II. Hydroxybutyrate-hydroxyvalerate copolymers: hydrolytic degradation studies.
- Materials Science, EngineeringBiomaterials
- 1987