Application of gamma irradiation for the enhanced physiological properties of polysaccharides from seaweeds.
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.
Choi
Jong-Il
JI
Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 580185, Republic of Korea.
Kim
Hyun-Joo
HJ
Kim
Jae-Hun
JH
Byun
Myung-Woo
MW
Soo Chun
Byeong
B
Hyun Ahn
Dong
D
Hwang
Young-Jeong
YJ
Kim
Duk-Jin
DJ
Kim
Gwang Hoon
GH
Lee
Ju-Woon
JW
D000975:Antioxidants; D016166:Free Radical Scavengers; D005720:Gamma Rays; D005936:Glucans; D008970:Molecular Weight; D010084:Oxidation-Reduction; D011134:Polysaccharides / Q000528:radiation effects*; D012624:Seaweed / Q000737:chemistry*
D000975:Antioxidants; D016166:Free Radical Scavengers; D005936:Glucans; D011134:Polysaccharides; C008247:laminaran; C007789:fucoidan