Abstract
In this work a fat/water-based emulsion pasty system, margarine, is studied from the point of view of its photothermal response at temperatures of the sample near and across the temperature region at which the emulsion breaks apart. The emulsion decay has also been observed at a fixed sample temperature through the temporal behavior of its photothermal response. For these studies, two different frequency-dependent photothermal experimental techniques have been used: photo-pyroelectric detection schemes, as well as infrared radiometry. Whereas the photo-pyroelectric technique has been applied to extract integral thermal information, the photothermal infrared radiometry has been used to explore aspects concerning the sample's thermal depth profile.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
K. J. Lissant, Emulsion and Emulsion Technology, Part I (Marcel Dekker, New York, 1996).
H. G. Schwartzberg and W. Hartel, Phys. Chem. Foods (Marcel Dekker, New York, 1997).
E. Dickinson and G. Stainsby, Advances in Food Emulsions and Foams (Elsevier, Amsterdam, 1988).
J. B. Rossell and J. L. R. Pritchard, Analysis of Seeds, Fats and Fatty Foods (Elsevier, Amsterdam, 1991).
H. Vargas and L. C. M. Miranda, Phys. Rep. 161:45(1988).
P. Hess and J. Pelzl, eds., Photoacoustic and Photothermal Phenomena, Springer Series in Optical Sciences, A. L. Schawlow, ed. (Springer-Verlag, Berlin, Heidelberg, 1988).
J. de R. Pereira, E. C. da Silva, A. M. Mansanares, and L. C. M. Miranda, Anal. Sci. 17:172(2001).
A. Mandelis and M. M. Zver, J. Appl. Phys. 57:9(1985).
D. Dadarlat, M. Chirtoc, C. Nematu, R. M. Cândea, and D. Bicanic, Phys. Stat. Sol. (a) 121:K231(1990).
J. Bolte, M. Chirtoc, B. K. Bein, and J. Pelzl, Prog. in Nat. Sci. A6:S-705(1996).
J. Bolte, J. H. Gu, and B. K. Bein, High Temp.-High Press. 29:567(1997).
B. K. Bein and J. Pelzl, Analysis of surfaces exposed to plasmas by nondestructive photoacoustic and photothermal techniques, in Plasma Diagnostics—Surface Analysis and Interactions, Vol. 2, O. Auciello and D. L. Flamm, eds. (Academic Press, New York, 1988), pp. 211-326.
J. Gibkes, D. Bicanic, J. Cozijnsen, R. Frankhuizen, R. Koehorst, O. Dóka, and H. Jalink, Photoacoustic and Photothermal Phenomena, AIP Conference Proceedings, Vol. 463, F. Scudieri and M. Bertolotti, eds. (American Institute of Physics Press, Woodburry, New York, 1999), pp. 670-672.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Delgadillo-Holtfort, I., de R. Pereira, J., Guimarães, A.O. et al. Photothermal Investigations of De-Emulsification of Fat/Water-Based Pasty Materials: Margarine. International Journal of Thermophysics 25, 587–602 (2004). https://doi.org/10.1023/B:IJOT.0000028492.71162.e4
Issue Date:
DOI: https://doi.org/10.1023/B:IJOT.0000028492.71162.e4