Journal of Radiation Industry (방사선산업학회지)

Korean Society of Radiation Industry (한국방사선산업학회)
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Molecular Weight Control of Chitosan Using Gamma Ray and Electron Beam Irradiation

  • Kim, Hyun Bin (Radiation Research Division for Industry & Environment, Korea Atomic Energy Research Institute) ;
  • Lee, Young Joo (Radiation Research Division for Industry & Environment, Korea Atomic Energy Research Institute) ;
  • Oh, Seung Hwan (Radiation Research Division for Industry & Environment, Korea Atomic Energy Research Institute) ;
  • Kang, Phil Hyun (Radiation Research Division for Industry & Environment, Korea Atomic Energy Research Institute) ;
  • Jeun, Joon Pyo (Radiation Research Division for Industry & Environment, Korea Atomic Energy Research Institute)
  • Received : 2013.06.03
  • Accepted : 2013.08.01
  • Published : 2013.03.31

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Abstract

Chitosan is a useful natural polymer material in many application fields such as biomaterials, water-treatment, agriculture, medication, and food science. However, the poor solubility limits its application. In this study, the effects of radiation on chitosan were investigated using gamma ray and electron beam irradiation. The chemical structure and molecular weight analysis show similar degradation effects of chitosan powder in both gamma ray and electron beam irradiation. However, the radiation irradiated chitosan in $H_2O$ has a lower molecular weight, since the hydroxyl radicals attack the glycosidic bonds. This effect is more clearly shown in the electron beam irradiation results.

Keywords

Acknowledgement

Supported by : Korea Atomic Energy Research Institute