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The Korean Society for Biotechnology and Bioengineering (한국생물공학회)
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Antioxidant Activity of Low Molecular Weight Laminarin Prepared with Gamma Irradiation

감마선 조사된 저분자 laminarin의 항산화 활성 연구

  • Choi, Jong-Il (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Kim, Hyun-Joo (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Lee, Ju-Woon (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute)
  • 최종일 (한국원자력연구원 정읍방사선과학연구소) ;
  • 김현주 (한국원자력연구원 정읍방사선과학연구소) ;
  • 이주운 (한국원자력연구원 정읍방사선과학연구소)
  • Received : 2011.07.06
  • Accepted : 2011.11.07
  • Published : 2011.12.31
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Abstract

In this study, it was investigated the antioxidant activity of laminarin degraded by gamma irradiation. Because the activities of antioxidants have been attributed to various mechanisms, different assay methods have been conducted and compared. 1,1-diphenyl-2-picryl-hydrazyl (DPPH) radical scavenging activity, ferric reducing antioxidant power, and lipid peroxidation inhibitory activity of degraded laminarin were measured and compared with non-degraded. All of these results showed that the antioxidant activity of laminarin degraded by irradiation was increased depending on the absorbed dose. Therefore, gamma irradiation could be an alternative method for the preparation of degraded laminarin with higher antioxidant activity.

Keywords

References

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