Comparative study on biodegradability of polyethylene wax by bacteria and fungi

Fusako Kawai, Masaji Watanabe, Masaru Shibata, Shigeo Yokoyama, Yasuhiro Sudate, Shizue Hayashi

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53 Citations (Scopus)

Abstract

Biodegradability of polyethylene wax (PEwax) was studied comparatively between degraders in two different classes: bacteria and fungi. Gel permeation chromatography patterns were obtained before and after cultivation of a bacterial consortium KH-12 and a fungus, Aspergillus sp. AK-3 in culture media containing PEwax as their sole carbon sources for three weeks, and they were introduced into a mathematical model based on two primary factors: the gradual weight loss of large molecules due to β-oxidation processes and the direct consumption of small molecules by cells. The total consumption rates and the β-oxidation rates for both of these degraders were determined numerically, and their degradability was compared.

Original languageEnglish
Pages (from-to)105-114
Number of pages10
JournalPolymer Degradation and Stability
Volume86
Issue number1
DOIs
Publication statusPublished - Oct 1 2004

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Keywords

  • Biodegradation
  • Mathematical model
  • Numerical simulation
  • Polyethylene wax

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Polymers and Plastics
  • Materials Chemistry

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