期刊
APPLIED RADIATION AND ISOTOPES
卷 67, 期 7-8, 页码 1277-1281出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.apradiso.2009.02.027
关键词
Polysaccharides; Seaweeds; Gamma irradiation; Fucoidan; Laminarin; Antioxidative activity
Polysaccharides from seaweeds, fucoidan and laminarin, were irradiated with gamma rays, and their structural changes and anti-oxidative activities were investigated. The gamma irradiation decreased the average molecular weights of polysaccharides, and UV spectra of irradiated polysaccharides showed increases in the numbers of carboxyl and carbonyl groups and double bonds. DPPH radical scavenging ability and reducing power of the gamma irradiated polysaccharides were significantly higher than those non-irradiated. (C) 2009 Elsevier Ltd. All rights reserved.
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