STUDY ON EFFECTS OF MICROORGANISM IN DEPOLYMERIZATION PROCESS OF XENOBIOTIC POLYMERS BY MODELING AND SIMULATON

Masaji Watanabe, Fusako Kawai

2010

Abstract

Effects of microorganism in biodegradation process of polyethylene glycol are studied by modeling and simulation. Dynamics of population of microorganism is taken into consideration in modeling of depolymerization process of exogenous type, and a mathematical model is described. A molecular factor of degradation rate is obtained by solving an inverse problem, and a time factor of degradation is obtained by analyzing the dynamics of population of microorganism. Once the time factor and the molecular factor of degradation rate are determined, a depolymerization process is simulated by solving an initial value problem.

References

  1. F. Kawai, M. Watanabe, M. S. S. Y. Y. S. (2002). Experimental analysis and numerical simulation for biodegradability of polyethylene. Polymer Degradation and Stability, 76:129-135. doi: 10.1016/S0141- 3910(02)00006-X.
  2. F. Kawai, M. Watanabe, M. S. S. Y. Y. S. S. H. (2004). Comparative study on biodegradability of polyethylene wax by bacteria and fungi. Polymer Degradation and Stability, 86:105-114. doi: 10.1016/j.polymdegradstab.2004.03.015.
  3. Kawai, F. (1993). Biodegradability and chemical structure of polyethers. Kobunshi Ronbunshu, 50(10):775-780. In Japanese.
  4. Kawai, F. (1995). Breakdown of plastics and polymers by microorganisms. Advances in Biochemical Engineering/Biotechnology, 52:151-194.
  5. Kawai, F. (2002a). Microbial degradation of polyethers. Applied Microbiology and Biotechnology, 58:30-38. doi: 10.1007/s00253-001-0850-2.
  6. Kawai, F. (2002b). Xenobiotic polymers. In Imanaka, T., editor, Great Development of Microorganisms, pages 865-870, Tokyo. NTS. Inc. In Japanese.
  7. M. Watanabe, F. Kawai, M. S. S. Y. Y. S. (2003). Computational method for analysis of polyethylene biodegradation. Journal of Computational and Applied Mathematics, 161(1):133-144. doi: 10.1016/S0377- 0427(03)0051-X.
  8. M. Watanabe, F. Kawai, M. S. S. Y. Y. S. S. H. (2004). Analytical and computational techniques for exogenous depolymerization of xenobiotic polymers. Mathematical Biosciences, 192:19-37. doi: 10.1016/j.mbs.2004.06.006.
  9. Watanabe, M. and Kawai, F. (2004). Analysis of biodegradability for polyethylene glycol via numerical simulation. Environmental Research and Control, 26:17-22. In Japanese.
  10. Watanabe, M. and Kawai, F. (2005). Numerical simulation of microbial depolymerization process of exogenous type. ANZIAM J., 46(E):C1188-C1204. Proc.
  11. Watanabe, M. and Kawai, F. (2007a). Mathematical study of the biodegradation of xenobiotic polymers with experimental data introduced into analysis. ANZIAM J., 47:C665-C681. Proceedings of the 7th Biennial Engineering Mathematics and Applications Conference, EMAC-2005, Melbourne, Editors: Andrew Stacey and Bill Blyth and John Shepherd and A. J. Roberts, (http://anziamj.austms.org.au/V47EMAC2005/ Watanabe).
  12. Watanabe, M. and Kawai, F. (2007b). Numerical study of biodegradation of xenobiotic polymers based on exogenous depolymerization model with time dependent degradation rate. Journal of the Faculty of Environmental Science and Technology, Okayama University, 12:1-6.
  13. Watanabe, M. and Kawai, F. (2009a). Mathematical analysis of microbial depolymerization processes of xenobiotic polymers. In Mercer, G. N. and Roberts, A. J., editors, Proceedings of the 14th Biennial Computational Techniques and Application Conference, CTAC2008, volume 50 of ANZIAM J., pages C930- C946. (http://anziamj.austma.org.au/ojs/index.php /ANZIAMJ/article/view/1465).
  14. Watanabe, M. and Kawai, F. (2009b). Modeling and simulation of biodegradation of xenobiotic polymers based on experimental results. In BIOSIGNALS 2009, Second International Conference on Bio-inspired Systems and Signal Processing, Proceedings, Porto - Portugal, 14-17 January, 2009, pages 25-34. INSTICC Press.
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Paper Citation


in Harvard Style

Watanabe M. and Kawai F. (2010). STUDY ON EFFECTS OF MICROORGANISM IN DEPOLYMERIZATION PROCESS OF XENOBIOTIC POLYMERS BY MODELING AND SIMULATON . In Proceedings of the First International Conference on Bioinformatics - Volume 1: BIOINFORMATICS, (BIOSTEC 2010) ISBN 978-989-674-019-1, pages 181-186. DOI: 10.5220/0002757601810186


in Bibtex Style

@conference{bioinformatics10,
author={Masaji Watanabe and Fusako Kawai},
title={STUDY ON EFFECTS OF MICROORGANISM IN DEPOLYMERIZATION PROCESS OF XENOBIOTIC POLYMERS BY MODELING AND SIMULATON},
booktitle={Proceedings of the First International Conference on Bioinformatics - Volume 1: BIOINFORMATICS, (BIOSTEC 2010)},
year={2010},
pages={181-186},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002757601810186},
isbn={978-989-674-019-1},
}


in EndNote Style

TY - CONF
JO - Proceedings of the First International Conference on Bioinformatics - Volume 1: BIOINFORMATICS, (BIOSTEC 2010)
TI - STUDY ON EFFECTS OF MICROORGANISM IN DEPOLYMERIZATION PROCESS OF XENOBIOTIC POLYMERS BY MODELING AND SIMULATON
SN - 978-989-674-019-1
AU - Watanabe M.
AU - Kawai F.
PY - 2010
SP - 181
EP - 186
DO - 10.5220/0002757601810186