| Issue |
E3S Web Conf.
Volume 22, 2017
International Conference on Advances in Energy Systems and Environmental Engineering (ASEE17)
|
|
|---|---|---|
| Article Number | 00103 | |
| Number of page(s) | 8 | |
| DOI | https://doi.org/10.1051/e3sconf/20172200103 | |
| Published online | 07 November 2017 | |
The effectiveness of the biodegradation of raw and processed polystyrene by mealworms
Wrocław University of Science and Technology, Department of Environmental Protection, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
* Corresponding author: beata.hanus-lorenz@pwr.edu.pl
In our studies biodegradation of four variants of polystyrene was performed. We tested: raw material (PS), processed polystyrene (PSr), building insulation material (EPS) and food packaging boxes (PSp). Materials were characterized by means melt flow ratio (MFR), shore hardness and gloss. The biochemical assessment of macromolecules (proteins, lipids and sugars) in the mealworms organisms fed with tested forms of polystyrene allowed us to set how efficient and beneficial the biodegradation of types of polystyrene is. We also evaluated the variability of bacterial community in larval guts by the use of denaturing gradient gel electrophoresis (DGGE) on the bacterial DNA of 16S rRNA genes amplified in polymerase chain reaction (PCR). The results suggest that EPS and PSp polystyrene are the most digestible for T. molitor larvae. The metabolic degradation of polystyrene is probably strictly connected with the changes in biodiversity of gut bacteria.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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