The present paper shows a systematic dynamic and kinetic study on l-ascorbic acid and its degradation at high temperature. The neutron scattering study allows, through the behavior of quasi-elastic neutron scattering (QENS) spectra, to characterize the diffusive dynamics of l-ascorbic acid in water mixtures. Ascorbic acid undergoes degradation process at high temperature, but the presence of trehalose in solution markedly avoids ascorbic acid loss enhancing its t1/2 (half life time), as determined by high performance liquid chromatography (HPLC).
Neutron scattering and HPLC study on L-ascorbic acid and its degradation
BELLOCCO, Ersilia Santa;BARRECA, Davide;LAGANA', Giuseppina;LEUZZI, Ugo;MIGLIARDO, Federica;GALLI, Giovanni;GALTIERI, Antonio;MINUTOLI, Letteria;SQUADRITO, Francesco
2008-01-01
Abstract
The present paper shows a systematic dynamic and kinetic study on l-ascorbic acid and its degradation at high temperature. The neutron scattering study allows, through the behavior of quasi-elastic neutron scattering (QENS) spectra, to characterize the diffusive dynamics of l-ascorbic acid in water mixtures. Ascorbic acid undergoes degradation process at high temperature, but the presence of trehalose in solution markedly avoids ascorbic acid loss enhancing its t1/2 (half life time), as determined by high performance liquid chromatography (HPLC).File in questo prodotto:
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