Choi Jong-Il, Kim Hyun-Joo, Kim Jae-Hun, Byun Myung-Woo, Soo Chun Byeong, Hyun Ahn Dong, Hwang Young-Jeong, Kim Duk-Jin, Kim Gwang Hoon, Lee Ju-Woon
Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 580185, Republic of Korea.
Appl Radiat Isot. 2009 Jul-Aug;67(7-8):1277-81. doi: 10.1016/j.apradiso.2009.02.027. Epub 2009 Feb 20.
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.
用γ射线辐照海藻多糖、岩藻聚糖和海带多糖，并对其结构变化和抗氧化活性进行了研究。γ射线辐照降低了多糖的平均分子量，辐照多糖的紫外光谱显示羧基、羰基和双键的数量增加。γ射线辐照多糖的DPPH自由基清除能力和还原能力显著高于未辐照的多糖。
