Polymorphism and growth behavior of low-trans fat blends formulated with and without emulsifiers

  • Marina Cerdeira
  • Silvana Martini
  • Roberto J. Candal
  • María L. Herrera
Article

Abstract

Polymorphism and growth behavior of blends of a high-melting fraction of milk fat (HMF) and sunflower oil (SFO) formulated with and without the addition of sucrose esters (SE) P-170, P-1670, and S-170 were studied by pulsed 1H NMR spectroscopy, X-ray diffraction, and polarized light microscopy. The effect of SE on the solid content maximum (Smax) or crystallization rate was observed only at low supercooling (values of ΔT below 15°C). The Avrami kn decreased as n values increased, indicating that SE inhibited growth and impeded nucleation. Addition of SFO modified the polymorphic behavior of milk fat, most likely owing to the increase in the C54 fraction (mostly 18∶1 cis) in crystals composition. P-170 and S-170 modified the polymorphic behavior of HMF when it crystallized in the α-form or in blends with up to 40% SFO at all crystallization temperatures (Tc) selected. Addition of P-170 and S-170 favored crystallization in the β′-form, and the appearance of the β-form was delayed. P-1670 had no effect on polymorphism. When HMF and the blends were crystallized under dynamic conditions, addition of P-170 and S-170 markedly decreased crystal sizes. P-1670, however, showed no effect on microstructure.

Key words

Avrami model high-melting fraction of milk fat isothermal growth polymorphism sucrose esters sunflower oil trans fat blends 

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References

  1. 1.
    Reddy, S.Y., and T. Jeyarani, Trans-Free Bakery Shortenings from Mango Kernel and Mahua Fats by Fractionation and Blending, J. Am. Oil Chem. Soc. 78:635–640 (2001).CrossRefGoogle Scholar
  2. 2.
    Cerdeira, M., S. Martini, R.W. Hartel, and M.L. Herrera, Effect of Sucrose Ester Addition on Nucleation and Growth Behavior of Milk Fat-Sunflower Oil Blends, J. Agric. Food Chem. 51:6550–6557 (2003).CrossRefGoogle Scholar
  3. 3.
    Campbell, S.D., H.D. Goff, and D. Rousseau, Modeling the Nucleation and Crystallization Kinetics of a Palm Stearin/Canola Oil Blend and Lard in Bulk and Emulsified Form, J. Am. Oil Chem. Soc. 81:213–219 (2004).CrossRefGoogle Scholar
  4. 4.
    Sato, K., S. Ueno, and J. Yano, Molecular Interactions and Kinetic Properties of Fats, Prog. Lipid Res. 38:91–116 (1999).CrossRefGoogle Scholar
  5. 5.
    Weyland, M., Emulsifiers in Confectionery, in Food Emulsifiers and Their Applications, edited by G.L. Hasenhuettl and R.W. Hartel, Chapman & Hall, New York, 1997, pp. 235–254.Google Scholar
  6. 6.
    Yuki, A., K. Matsuda, and A. Nishimura, Effect of Sucrose Polyesters on Crystallization Behavior of Vegetable Shortening and Margarine Fat, J. Jpn. Oil Chem. Soc. 39:236–244 (1990).Google Scholar
  7. 7.
    Herrera, M.L., and F.J. Marquez Rocha, Effects of Sucrose Ester on the Kinetics of Polymorphic Transition in Hydrogenated Sunflower Oil, J. Am. Oil Chem. Soc. 73:321–326 (1996).CrossRefGoogle Scholar
  8. 8.
    Nasir, M.I., Effect of Sucrose Polyesters and Sucrose Polyester-Lecithins on Crystallization Rate of Vegetable Ghee, in Crystallization and Solidification Properties of Lipids, edited by N. Widlak, R.W. Hartel, and S. Narine, AOCS Press, Champaign, 2001, pp. 87–95.Google Scholar
  9. 9.
    Avrami, M., Kinetics of Phase Change. II. Transformation-Time Relations for Random Distribution of Nuclei, J. Chem. Phys. 8:212–224 (1940).CrossRefGoogle Scholar
  10. 10.
    Box, G.E.P., W.G. Hunter, and J.S. Hunter, Randomized Blocks and Two-Way Factorial Designs, in Statistics for Experimenters, John Wiley & Sons, New York, 1978, pp. 208–244.Google Scholar
  11. 11.
    Graydon, J.W., S.J. Thorpe, and D.W. Kirk, Determination of the Avrami Exponent for Solid State Transformations from Non-Isothermal Differential Scanning Calorimetry, J. Non-Cryst. Solids 175:31–43 (1994).CrossRefGoogle Scholar
  12. 12.
    Christian, J.W., The Theory of Transformations in Metals and Alloys, Pergamon Press, London, 1975, pp. 26–52.Google Scholar
  13. 13.
    Sakamoto, M., A. Ohba, J. Kuriyama, K. Maruo, S. Ueno, and K. Sato, Influences of Fatty Acid Moiety and Esterification of Polyglycerol Fatty Acid Esters on the Crystallization of Palm Mid-Fraction in Oil-in-Water Emulsion, Colloids Surf. B: Biointerfaces 37:27–33 (2004).CrossRefGoogle Scholar
  14. 14.
    ten Groetenhuis, E., G.A. van Aken, K.F. van Malssen, and H. Schenk, Polymorphism of Milk Fat Studied by Differential Scanning Calorimetry and Real-Time X-Ray Powder Diffraction, J. Am. Oil Chem. Soc. 76:1031–1039 (1999).Google Scholar
  15. 15.
    Garti, N., Effects of Surfactants on Crystallization and Polymorphic Transformation of Fats and Fatty Acids, in Crystallization and Polymorphism of Fats and Fatty Acids, edited by N. Garti and K. Sato, Marcel Dekker, New York, 1988, pp. 267–303.Google Scholar
  16. 16.
    Katsuragi, T., N. Kaneko, and K. Sato, Effects of Addition of Hydrophobic Sucrose Fatty Acid Oligoesters on Crystallization Rates of n-Hexadecane in Oil-in-Water Emulsions, Colloids Surf. B: Biointerfaces 20:229–237 (2001).CrossRefGoogle Scholar

Copyright information

© AOCS Press 2006

Authors and Affiliations

  • Marina Cerdeira
    • 1
  • Silvana Martini
    • 1
  • Roberto J. Candal
    • 2
  • María L. Herrera
    • 1
  1. 1.Departamento de IndustriasUniversity of Buenos AiresBuenos AiresArgentina
  2. 2.Instituto de Química Física de Materiales, Ambiente y EnergíaUniversity of Buenos AiresBuenos AiresArgentina

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