Actas de congresos
Photothermal Investigations Of De-emulsification Of Fat/water-based Pasty Materials: Margarine
Registro en:
International Journal Of Thermophysics. , v. 25, n. 2, p. 587 - 602, 2004.
0195928X
10.1023/B:IJOT.0000028492.71162.e4
2-s2.0-3543099832
Autor
Delgadillo-Holtfort I.
Pereira J.D.R.
Guimaraes A.O.
Da Silva E.C.
Institución
Resumen
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. 25 2 587 602 Lissant, K.J., (1996) Emulsion and Emulsion Technology, Part I, , Marcel Dekker, New York Schwartzberg, H.G., Hartel, W., (1997) Phys. Chem. Foods, , Marcel Dekker, New York Dickinson, E., Stainsby, G., (1988) Advances in Food Emulsions and Foams, , Elsevier, Amsterdam Rossell, J.B., Pritchard, J.L.R., (1991) Analysis of Seeds, Fats and Fatty Foods, , Elsevier, Amsterdam Vargas, H., Miranda, L.C.M., (1988) Phys. Rep., 161, p. 45 Hess, P., Pelzl, J., (1988) Photoacoustic and Photothermal Phenomena, Springer Series in Optical Sciences, , A. L. Schawlow, ed. (Springer-Verlag, Berlin, Heidelberg) Pereira, J.D.R., Da Suva, E.C., Mansanares, A.M., Miranda, L.C.M., (2001) Anal. Sci., 17, p. 172 Mandelis, A., Zver, M.M., (1985) J. Appl. Phys., 57, p. 9 Dadarlat, D., Chirtoc, M., Nematu, C., Cândea, R.M., Bicanic, D., (1990) Phys. Stat. Sol. (A), 121, pp. K231 Bolte, J., Chirtoc, M., Bein, B.K., Pelzl, J., (1996) Prog. in Nat. Sci., A6, pp. S-705 Bolte, J., Gu, J.H., Bein, B.K., (1997) High Temp.-high Press, 29, p. 567 Bein, B.K., Pelzl, J., Analysis of surfaces exposed to plasmas by nondestructive photoacoustic and photothermal techniques (1988) Plasma Diagnostics - Surface Analysis and Interactions, 2, pp. 211-326. , O. Auciello and D. L. Flamm, eds. (Academic Press, New York) Gibkes, J., Bicanic, D., Cozijnsen, J., Frankhuizen, R., Koehorst, R., Dóka, O., Jalink, H., Photoacoustic and photothermal phenomena (1999) AIP Conference Proceedings, 463, pp. 670-672. , F. Scudieri and M. Bertolotti, eds. (American Institute of Physics Press, Woodburry, New York)