Amadori compounds reversibility

The rate of the reversible 1,2-enolization can also be readily measured by NMR monitoring the exchange of methylene hydrogen atoms at C-1 with deuterium atoms from solvent D20. Within a series of D-fiuctose-amino acids, the enolization rates were affected by the stracture of Amadori compounds, flie temperature, and tire presence of phosphate nucleophihc catalyst (Table fV)-... 

D. Schumacher and L. W. Kroh, Studies on the degradation of Maillard reaction products by amylolytic enzymes. Part 1. Reversible inhibition of a- and glucoa-mylase as well as a-glucosidase by oligosaccharide-Amadori-compounds, Z Lebensm.-Unters. -Forsch., 199 (1994) 270-274. 

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