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Biodegradation of Low Density Polythene (LDPE) by Pseudomonas Species

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Abstract

Low density polythene (LDPE) is the most widely used packaging material primarily because of its excellent mechanical properties, barrier properties against water, light weight, low cost and high energy effectiveness. However, due to its ubiquitous nature, and resistance to biodegradability, the disposal strategies are crucial and need attention. Recently, microorganisms have become the focus of interest for environmental friendly disposal of plastic and polymer-based waste. This manuscript aims to investigate the extent of biodegradability of LDPE by four different strains of Pseudomonas bacteria—Pseudomonas aeruginosa PAO1 (ATCC 15729), Pseudomonas aeruginosa (ATCC 15692), Pseudomonas putida (KT2440 ATCC 47054) and Pseudomonas syringae (DC3000 ATCC 10862). Degradation of LDPE was determined by weight loss of the sample, morphological changes, mechanical and spectroscopic variations. The eluted compounds after degradation were analysed by gas chromatography coupled with mass spectroscopy. Our results show that Pseudomonas spp. can degrade LDPE films.

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Abbreviations

LDPE:

Low density polythene

GC–MS:

Gas chromatography coupled with mass spectroscopy

TS:

Tensile strength

EAB:

Extension at break

CI:

Carbonyl index

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Authors and Affiliations

  1. Biomedical Engineering Research Centre, Nanyang Technological University, Singapore, Singapore

    Bhone Myint Kyaw, Ravi Champakalakshmi & Chu Sing Lim

  2. Advanced Design and Modelling Lab, Nanyang Technological University, Singapore, Singapore

    Bhone Myint Kyaw

  3. School of Life and Environmental Science, University of Tsukuba, Tsukuba, Japan

    Meena Kishore Sakharkar

  4. OmicsVista, Singapore, Singapore

    Kishore R. Sakharkar

Authors
  1. Bhone Myint Kyaw
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  2. Ravi Champakalakshmi
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  3. Meena Kishore Sakharkar
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  4. Chu Sing Lim
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  5. Kishore R. Sakharkar
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Corresponding author

Correspondence to Kishore R. Sakharkar.

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Kyaw, B.M., Champakalakshmi, R., Sakharkar, M.K. et al. Biodegradation of Low Density Polythene (LDPE) by Pseudomonas Species. Indian J Microbiol 52, 411–419 (2012). https://doi.org/10.1007/s12088-012-0250-6

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  • DOI: https://doi.org/10.1007/s12088-012-0250-6

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