Identification of proton type in concentrated sweet solutions by pulsed NMR analysis

Gordon G. Birch*, John Grigor, William Derbyshire

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)


The spin-spin proton relaxation times T2 of concentrated sucrose, maltose, D-glucose and L-proline solutions were determined using a Bruker Minispec NMR Spectrometer. Log spin echo amplitude decay curves were also determined and their non-linear nature allowed the proportions of different proton types to be calculated. These were in agreement with the theoretical proportions of ring (non-exchangeable protons), solute hydroxyl protons and water protons in the simple sugar molecules. A deuteration experiment confirmed that only non-exchangeable ring protons remained.

Original languageEnglish
Pages (from-to)795-801
Number of pages7
JournalJournal of Solution Chemistry
Issue number8
Publication statusPublished - Aug 1989
Externally publishedYes


  • NMR
  • Pulse relaxation sugars
  • Sweetness
  • Hydration
  • Protons


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