Comparative study on biodegradability of polyethylene wax by bacteria and fungi

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

doi:10.1016/j.polymdegradstab.2004.03.015

Comparative study on biodegradability of polyethylene wax by bacteria and fungi

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

Research output: Contribution to journal › Article › peer-review

83 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 language	English
Pages (from-to)	105-114
Number of pages	10
Journal	Polymer Degradation and Stability
Volume	86
Issue number	1
DOIs	https://doi.org/10.1016/j.polymdegradstab.2004.03.015
Publication status	Published - Oct 2004

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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10.1016/j.polymdegradstab.2004.03.015

Cite this

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AU - Kawai, Fusako

AU - Watanabe, Masaji

AU - Shibata, Masaru

AU - Yokoyama, Shigeo

AU - Sudate, Yasuhiro

AU - Hayashi, Shizue

PY - 2004/10

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AB - 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.

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Comparative study on biodegradability of polyethylene wax by bacteria and fungi

Abstract

Keywords

ASJC Scopus subject areas

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