Skip to Main content Skip to Navigation
Journal articles

Distribution and mobility of phosphates and sodium ions in cheese by solid-state 31P and double-quantum filtered 23Na NMR spectroscopy

Abstract : The feasibility of solid-state magic angle spinning (MAS) 31P nuclear magnetic resonance (NMR) spectroscopy and 23Na NMR spectroscopy to investigate both phosphates and Na+ ions distribution in semi-hard cheeses in a non-destructive way was studied. Two semi-hard cheeses of known composition were made with two different salt contents. 31P Single-pulse excitation and cross-polarization MAS experiments allowed, for the first time, the identification and quantification of soluble and insoluble phosphates in the cheeses. The presence of a relatively mobile fraction of colloidal phosphates was evidenced. The detection by 23Na single-quantum NMR experiments of all the sodium ions in the cheeses was validated. The presence of a fraction of bound sodium ions was evidenced by 23Na double-quantum filtered NMR experiments. We demonstrated that NMR is a suitable tool to investigate both phosphates and Na+ ions distributions in cheeses. The impact of the sodium content on the various phosphorus forms distribution was discussed and results demonstrated that NMR would be an important tool for the cheese industry for the processes controls.
Document type :
Journal articles
Complete list of metadata

https://hal.inrae.fr/hal-02667795
Contributor : Migration Prodinra <>
Submitted on : Sunday, May 31, 2020 - 11:27:21 AM
Last modification on : Thursday, August 5, 2021 - 4:30:01 PM

Links full text

Identifiers

Collections

Citation

Mallory Gobet, Corinne Rondeau-Mouro, S Buchin, Jean-Luc Le Quéré, Elisabeth Guichard, et al.. Distribution and mobility of phosphates and sodium ions in cheese by solid-state 31P and double-quantum filtered 23Na NMR spectroscopy. Magnetic Resonance in Chemistry, Wiley, 2010, 48 (4), pp.297 - 303. ⟨10.1002/mrc.2576⟩. ⟨hal-02667795⟩

Share

Metrics

Record views

45