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...

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Published inApplied radiation and isotopes Vol. 67; no. 7; pp. 1277 - 1281
Main Authors 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
Format Journal Article
LanguageEnglish
Published England Elsevier Ltd 01.07.2009
Subjects
Antioxidants
Antioxidative activity
Free Radical Scavengers
Fucoidan
Gamma irradiation
Gamma Rays
Glucans
Laminarin
Molecular Weight
Oxidation-Reduction
Polysaccharides
Polysaccharides - radiation effects
Seaweed - chemistry
Seaweeds
Laminarin
Polysaccharides
Gamma irradiation
Antioxidative activity
Fucoidan
Seaweeds
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Summary: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.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0969-8043
1872-9800
DOI:10.1016/j.apradiso.2009.02.027