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島根大学生物資源科学部研究報告 13 巻
2008-09-30 発行
3-デオキシグルコソンによるメイラード反応由来ラジカルの検出と性質
Detection and Characterization of Radicals Derived from 3-Deoxyglucosone in Maillard Reaction
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内容記述
3-Deoxygluconsne（3-DG）, an α, β-dicarbonyl compounds in phosphate buffer, pH7.4 with amino acids, produced different ESR spectra depending on the added amino acids, by the use of 3,5-dibromo-4-nitrosobenzenesulfonic acid（DBNBS）which is suitable for spin trapping of carbon centered radicals. 3-DG is known to polymerize protein, but added Lys promoted the dimerization of lysozyme by the involvement of radical generation. As the formation and accumulation of α, β-dicarbonyl compounds is known as carbonyl stress, we proposed that these radicals derived from amino acid via Maillard reaction may contribute oxidative stress, main part of carbonyl stress.
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