Synchrotron radiation macrobeam and microbeam X-ray diffraction studies of interfacial crystallization of fats in water-in-oil emulsions

Langmuir : the ACS Journal of Surfaces and Colloids
Paul WassellSatoru Ueno

Abstract

Using macrobeam and microbeam techniques, we performed synchrotron radiation X-ray diffraction (SR-XRD) analyses of fat crystallization in water-in-oil (W/O) emulsion, in combination with DSC and polarized optical microscopic observation. Particular focus was on the crystallization of the fats around water droplets in the W/O emulsion systems using food emulsifiers of polyglycerol polyricinoleate (PGPR) alone (PGPR emulsion), and PGPR and monobehenoylglycerol (MB) (PGPR+MB emulsion). We obtained the following results: (1) macrobeam SR-XRD confirmed that adding MB promoted fat crystallization during cooling, (2) microbeam SR-XRD indicated that the lamellar planes of fat crystals near the water and oil interfaces are arranged almost parallel to the interface planes in both PGPR emulsion and PGPR+MB emulsion, and (3) adding MB resulted in the formation of tiny fat crystals because it promoted crystallization, which occurred both in the bulk oil phase and at the W/O interfaces. The present study is the first to apply microbeam SR-XRD to observe the microscopic features of fat crystallization in W/O emulsion, following fat crystallization in the oil droplets in the oil-in-water (O/W) emulsion (Arima, S.; Ueno, S.; Ogawa, A.; Sato, K...Continue Reading

References

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Citations

Nov 19, 2013·Advances in Colloid and Interface Science·M DouaireI T Norton
Mar 8, 2013·Annual Review of Food Science and Technology·Richard W Hartel
Mar 7, 2014·Journal of Oleo Science·Shinichi YoshikawaKiyotaka Sato
Jun 2, 2015·Langmuir : the ACS Journal of Surfaces and Colloids·Sonja JosephHeike Bunjes
Oct 11, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Jorge Macridachis-GonzálezAnd Teresa Calvet
Sep 1, 2013·Comprehensive Reviews in Food Science and Food Safety·Stine RønholtJes C Knudsen
Mar 25, 2021·Journal of Colloid and Interface Science·Yu Liu, Bernard P Binks
Jul 20, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Brendan DyettXuehua Zhang
Oct 24, 2018·The Journal of Physical Chemistry. B·Amin SadeghpourMichael Rappolt

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