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Effect of gamma irradiation on the structure of fucoidan

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Title
Effect of gamma irradiation on the structure of fucoidan
Other Titles
푸코이단의 구조에 대한 감마선 조사의 영향
Authors
Choi Jong-il
Lee Pyung Cheon
Cho Minho
Han, Se Jong
Lee, Sung Gu
Keywords
Fucoidan; Molecular structure; Radiation
Issue Date
2014
Citation
Choi Jong-il, et al. 2014. "Effect of gamma irradiation on the structure of fucoidan". RADIATION PHYSICS AND CHEMISTRY, 100(1): 54-58.
Abstract
The change of molecular structure of fucoidan by gamma irradiation was analyzed by spectral and chemical methods. Fucoidan samples with different molecular weights of 85, 30, 15, and 7 kDa were prepared by radiation degradation of 217 kDa fucoidan. In the molecular weight analysis, the polydispersity decreased by gamma radiation because of further degradation of higher weight molecules. Ultraviolet absorption and Fourier-transform infrared spectroscopy analyses were carried out to de?ne the changes of the functional groups in fucoidan by gamma irradiation. Carboxyl groups and carbon double bonds increased by gamma irradiation;however, sulfate content remained unchanged. The granular ?ssures were observed from scanning electron microscopy in gamma- irradiated fucoidan.
URI
http://repository.kopri.re.kr/handle/201206/7261
DOI
http://dx.doi.org/10.1016/j.radphyschem.2014.03.018
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