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Introduction of environmentally degradable parameters to evaluate the biodegradability of biodegradable polymers
- Source :
- PLoS ONE, PLoS ONE, Vol 7, Iss 5, p e38341 (2012)
- Publication Year :
- 2012
-
Abstract
- Environmentally Degradable Parameter ((Ed)K) is of importance in the describing of biodegradability of environmentally biodegradable polymers (BDPs). In this study, a concept (Ed)K was introduced. A test procedure of using the ISO 14852 method and detecting the evolved carbon dioxide as an analytical parameter was developed, and the calculated (Ed)K was used as an indicator for the ultimate biodegradability of materials. Starch and polyethylene used as reference materials were defined as the (Ed)K values of 100 and 0, respectively. Natural soil samples were inoculated into bioreactors, followed by determining the rates of biodegradation of the reference materials and 15 commercial BDPs over a 2-week test period. Finally, a formula was deduced to calculate the value of (Ed)K for each material. The (Ed)K values of the tested materials have a positive correlation to their biodegradation rates in the simulated soil environment, and they indicated the relative biodegradation rate of each material among all the tested materials. Therefore, the (Ed)K was shown to be a reliable indicator for quantitatively evaluating the potential biodegradability of BDPs in the natural environment.
- Subjects :
- Soil test
Polymers
Applied Microbiology
Materials Science
lcsh:Medicine
Positive correlation
Microbiology
Biomaterials
chemistry.chemical_compound
Soil
Bioreactors
Environmental Biotechnology
Bioreactor
Materials Chemistry
lcsh:Science
Biology
chemistry.chemical_classification
Multidisciplinary
Chemistry
Test procedures
lcsh:R
Starch
Polymer
Polyethylene
Biodegradation
Carbon Dioxide
Pulp and paper industry
Biodegradable polymer
Biodegradation, Environmental
lcsh:Q
Materials Characterization
Algorithms
Research Article
Biotechnology
Subjects
Details
- ISSN :
- 19326203
- Volume :
- 7
- Issue :
- 5
- Database :
- OpenAIRE
- Journal :
- PloS one
- Accession number :
- edsair.doi.dedup.....ce5519771b02292909af0e629781dcfe