A comparison of the degradation products formed in aerated, aqueous α-d-glucose solutions by ultrasound and gamma rays

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Abstract

The degradation products formed in aerated aqueous α-d-glucose solutions by cleavage of the carbon skeleton by ultrasound and gamma irradiation are compared. Common products present for both types of irradiation are:d-glyceraldehyde, d-glyceric acid, hydroxy-malondialdehyde, 2,3-dihydroxy-4-oxo-butanoic acid, tetrodialdose, d-arabinoic acid and d-Xylose. 2,3,4-Trihydroxy-5-oxo-pentoic acid and d-arabinose could be detected only by radiolysis and evidence for the formation of 2-hydroxy-3-oxo-pentoic acid was only obtained in sonolysis. These fragmentation products are supposed to be formed by reactions of the glucose-peroxyl radicals with HO2-radicals. Based on the reactions of peroxyl radicals given in the literature, a mechanism is proposed which leads to the observed products.

Original languageEnglish
Pages (from-to)447-456
Number of pages10
JournalZeitschrift fur Lebensmittel -Untersuchung und -Forschung
Volume185
Issue number6
DOIs
StatePublished - Dec 1987

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