Raman hyperspectral imaging and analysis of fat spreads

G. van Dalen, E.J.J. van Velzen, P.C.M. Heussen, M. Sovago, K.F. van Malssen, J.P.M. van Duynhoven

Research output: Contribution to journalArticleAcademicpeer-review

7 Citations (Scopus)

Abstract

The microstructure of fat spreads is of fundamental importance to their sensorial properties such as texture, mouthfeel and spreadability. Fat spreads are water in oil emulsions,with a continuous phase supported by a fat crystal network. Confocal Raman microscopy offers the possibility for the spatialmapping of themicrostructure of fat spreads: It can distinguish the solid and liquid phases of the lipids and the emulsifiers present at the water–oil interface. A constraint multivariate curve resolution with an alternating least squares approach using a fixed set of pure component spectra is a suitable method to extract the spatial distribution information of each individual component present in the fat spread. A new normalization method provides semi-quantitative concentration maps, allowing good microstructural comparison. The technique was able to determine the spatial distribution of sunflower oil, water, emulsifier and solid fat in various investigated spreads. This method can be applied to a wide range of different food emulsions such as butter, margarine, mayonnaise and salad dressings. Copyright © 2017 John Wiley & Sons, Ltd.
Original languageEnglish
Pages (from-to)1075-1084
JournalJournal of Raman spectroscopy
Volume48
Issue number8
DOIs
Publication statusPublished - 2017

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Oils and fats
Fats
Emulsions
Sunflower oil
Water
Lipids
Hyperspectral imaging
Oils
Textures
Crystals
Microstructure

Cite this

van Dalen, G., van Velzen, E. J. J., Heussen, P. C. M., Sovago, M., van Malssen, K. F., & van Duynhoven, J. P. M. (2017). Raman hyperspectral imaging and analysis of fat spreads. Journal of Raman spectroscopy, 48(8), 1075-1084. https://doi.org/10.1002/jrs.5171
van Dalen, G. ; van Velzen, E.J.J. ; Heussen, P.C.M. ; Sovago, M. ; van Malssen, K.F. ; van Duynhoven, J.P.M. / Raman hyperspectral imaging and analysis of fat spreads. In: Journal of Raman spectroscopy. 2017 ; Vol. 48, No. 8. pp. 1075-1084.
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van Dalen, G, van Velzen, EJJ, Heussen, PCM, Sovago, M, van Malssen, KF & van Duynhoven, JPM 2017, 'Raman hyperspectral imaging and analysis of fat spreads', Journal of Raman spectroscopy, vol. 48, no. 8, pp. 1075-1084. https://doi.org/10.1002/jrs.5171

Raman hyperspectral imaging and analysis of fat spreads. / van Dalen, G.; van Velzen, E.J.J.; Heussen, P.C.M.; Sovago, M.; van Malssen, K.F.; van Duynhoven, J.P.M.

In: Journal of Raman spectroscopy, Vol. 48, No. 8, 2017, p. 1075-1084.

Research output: Contribution to journalArticleAcademicpeer-review

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van Dalen G, van Velzen EJJ, Heussen PCM, Sovago M, van Malssen KF, van Duynhoven JPM. Raman hyperspectral imaging and analysis of fat spreads. Journal of Raman spectroscopy. 2017;48(8):1075-1084. https://doi.org/10.1002/jrs.5171