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The formation of hydroxyl radicals in beta-glucan solutions treated with ascorbic acid and iron(II) was demonstrated by ESR spin trapping based methods. Two different spin traps were tested, namely DMPO which is commonly used to detect hydroxyl radicals, and POBN often used to detect carbon centered radicals. The experiments performed showed that the presence of iron(II) with DMPO led to low DMPO–OH...
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