Journal Article

PreJuSER-59359

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png A rapid benchtop NMR method for determination of droplet size distributions in food emulsions

van Duynhoven, J. P. M. ; Maillet, B. ; Schell, J. ; Tronquet, M. ; Goudappel, G. -J. W. ; Trezza, E. ; Bulbarello, A. ; Dusschoten van, D.FZJ*

2007
Wiley-VCH Weinheim

This record in other databases:  

Please use a persistent id in citations: doi:10.1002/ejlt.200700019

Abstract: The determination of water and oil droplet size distributions in food emulsions by low-field NMR has the advantage of a simple and non-perturbing sample preparation. Furthermore, NMR performs very well with respect to precision. The current implementation on most benchtop NMR spectrometers deploys a variation of gradient duration and requires continuous corrections for gradient imbalances, thus making the whole procedure a time-consuming one. By using variation of gradient strength and further stretching the capability of commercial benchtop NMR spectrometers, both water and oil droplet sizes can be measured in a more rapid manner, typically two to three times faster. The measured droplet size distributions are equivalent to those assessed by the current (slow) method, for both O/W and W/O emulsions. Furthermore, the rapid method shows a good performance with respect to precision. In addition, the method is able to determine droplet sizes in samples with much smaller amounts of dispersed phase.

Keyword(s): J ; NMR (auto) ; droplet size distributions (auto) ; benchtop (auto) ; food emulsions (auto)

Note: Record converted from VDB: 12.11.2012

---

Research Program(s):

1. Terrestrische Umwelt (P24)

Appears in the scientific report 2007

---