Antioxidant activities of fucoidan degraded by gamma irradiation and acidic hydrolysis
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- Antioxidant activities of fucoidan degraded by gamma irradiation and acidic hydrolysis
- Lim, Sangyong
- Chemistry; Nuclear Science & Technology; Physics
- Fucoidan; Gamma irradiation; Antioxidant; Acid hydrolysis
- Issue Date
- Lim, Sangyong, Jong-il Choi, and Hyun Park., et al. 2015. Antioxidant activities of fucoidan degraded by gamma irradiation and acidic hydrolysis. Radiation Physics and Chemistry. 109: 23？26.
- Low molecular weight fucoidan, prepared by radical degradation using gamma ray was investigated for its antioxidant activities with different assay methods. As the molecular weight of fucoidan decreased with a higher absorbed dose, ferric-reducing antioxidant power values increased, but β-carotene bleaching inhibition did not change significantly. The antioxidant activity of acid-degraded fucoidan was also examined to investigate the effect of different degradation methods. At the same molecular weight, fucoidan degraded by gamma irradiation showed higher 1,1-diphenyl-2-picrylhydrazyl radical scavenging activity than that observed with the acidic method. This result reveals that in addition to molecular weight, the degradation method affects the antioxidant activity of fucoidan.
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