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KMID : 0380020110260060565
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Korean Journal of Biotechnology and Bioengineering
2011 Volume.26 No. 6 p.565 ~ p.568
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Antioxidant Activity of Low Molecular Weight Laminarin Prepared with Gamma Irradiation
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Choi Jong-Il
Kim Hyun-Joo
Lee Ju-Woon
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Abstract
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In this study, it was investigated the antioxidant activity of laminarin degraded by gamma irradiation. Because the activities of antioxidants have been attributed to various mechanisms, different assay methods have been conducted and compared. 1,1-diphenyl-2-picryl-hydrazyl (DPPH) radical scavenging activity, ferric reducing antioxidant power, and lipid peroxidation inhibitory activity of degraded laminarin were measured and compared with non-degraded. All of these results showed that the antioxidant activity of laminarin degraded by irradiation was increased depending on the absorbed dose. Therefore, gamma irradiation could be an alternative method for the preparation of degraded laminarin with higher antioxidant activity.
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KEYWORD
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laminarin, gamma irradiation, degradation, antioxidant
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