Restructuring butterfat through blending and chemical interesterification. 3. Rheology
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Interesterified and noninteresterified butterfat-canola oil blends, ranging from 100% butterfat to 60∶40 butterfat-canola oil (w/w) in 10% increments, were evaluated for hardness index (HI), dropping point, viscosity, and viscoelastic properties at small deformation. Both blending and chemical interesterification diminished HI in a nonlinear fashion. HI changes in interesterified blends were more pronounced than in noninteresterified blends. Dropping points yielded information on the structure of the blends. Butterfat’s dropping point (DP) was 34.4°C, whereas that of interesterified butterfat was 37.0°C, which is indicative of a more structured network for the latter. DP values of blends with 60–90% butterfat (interesterified vs. noninteresterified) were not significantly different (P<0.05). Interesterified blends had a higher crystallization onset temperature than did noninteresterified blends. All blends in the liquid state displayed Newtonian behavior. Oscillatory frequency sweep measurements at small amplitude showed that interesterified blends generally had lower storage moduli (G′) than their noninteresterified counterparts. BothG′ andG″ were frequency-dependent. Replacement of 30% butterfat by canola oil led to notable changes in small deformation measurements, whereas replacement of 20% butterfat led to big changes in large deformation measurements.
- deMan, J.M., and A.M. Beers, Fat Crystal Networks: Structure and Rheological Properties,J. Texture Studies 18:303–318 (1987).
- Walstra, P., and R. Jenness,Dairy Chemistry and Physics, John Wiley and Sons, New York, 1984.
- Drake, M.A., L. Ma, B.G. Swanson, and G.V. Barbosa-Cánovas, Rheological Characteristics of Milkfat and Milkfat-Blend Sucrose Polyesters,Food Res. Int. 27:477–481 (1994). CrossRef
- deMan, J.M. inRheology and Texture in Food Quality, edited by J.M. deMan, P.W. Voisey, V.F. Rasper, and D.W. Stanley, The AVI Publishing Company, Westport, 1976, pp. 355–381.
- Rohm, H., and K.-H. Weidinger, Rheological Behaviour of Butter at Small Deformations,J. Texture Studies 24:157–172 (1993).
- Rohm, H., Rheological Behaviour of Butter at Large Deformation,Ibid. 24:139–155 (1993).
- deMan, J.M., Consistency of Fats: A Review,J. Am. Oil Chem. Soc. 60:6–11 (1983).
- Haighton, A.J., The Measurement of the Hardness of Margarine and Fats with Cone Penetrometers,Ibid. 36:345–348 (1959).
- Shama, F., and P. Sherman, The Influence of Work Softening on the Viscoelastic Properties of Butter and Margarine,J. Texture Studies 1:196–205 (1970).
- Amer, M.A., and A.N. Myhr, Modification of Butter to Improve Low Temperature Spreadability,Can. Inst. Food Sci. Technol. 6:261–265 (1972).
- Taylor, M.W., and R. Norris, The Physical Properties of Dairy Spreads,N.Z.J. Dairy Sci. Technol. 12:166–170 (1977).
- Hayakawa, M., and J.M. deMan, Interpretation of Cone Penetrometer, Consistency Measurements of Fats,J. Texture Studies 13:201–210 (1982).
- Borwankar, R.P., L.A. Frye, A.E. Blaurock, and F.J. Sasevich, Rheological Characterization of Melting of Margarines and Tablespreads.J. Food Eng. 16:55–74 (1992). CrossRef
- Borwankar, R.P., and G.S. Buliga, Emulsion Properties of Margarines and Lowfat Spreads,Am. Inst. Chem. Eng. Symp. Series 86:44–52 (1990).
- Shukla, A., A.R. Bhaskar, S.S.H. Rizvi, and S.J. Mulvaney, Physicochemical and Rheological Properties of Butter Made from Supercritically Fractionated Milk Fat,J. Dairy Sci. 77:45–54 (1994). CrossRef
- Shukla, A., and S.S.H. Rizvi, Viscoelastic Properties of Butter,J. Food Sci. 60:902–905 (1995). CrossRef
- Rousseau, D., K. Forestière, A.R. Hill, and A.G. Marangoni, Restructuring Butterfat Through Blending and Chemical Interesterification. 1. Melting Behavior and Triacylglycerol Modifications.J. Am. Oil Chem. Soc. 73:963–972 (1996).
- SAS Institute, Inc.SAS/STAT Guide for Personal Computers, Statistical Analysis Systems Institute, Cary, 1985, pp. 183–260.
- Lefèbvre, J. Finished Product Formulation,J. Am. Oil Chem. Soc. 60:295–300 (1983).
- Mahklouf, J., J. Arul, A. Boudreau, P. Verret, and M.R. Sahasrabudhe, Fractionnement de la Matière Grasse Laitière par Crystallisation Simple et Son Utilisation dans la Fabrication de Beurres Mous,Can. Inst. Food Sci. Technol. J. 20:236–245 (1987).
- deMan, J.M., L. deMan, and B. Blackman, Melting-Point Determination of Fat Products,J. Am. Oil Chem. Soc. 60:91–94 (1983).
- Timms, R.E., Physical Properties of Oils and Mixtures of Oils,Ibid. 62:241–249 (1985).
- Ferry, J.D.Viscoelastic Properties of Polymers, John Wiley and Sons, Inc., New York, 1970, pp. 1–108.
- Sherman, P. (ed.)Food Texture and Rheology, Academic Press, London, 1979.
- Kokini, J.L., and G.J. Plutchok, Viscoelastic Properties of Semisolid Foods and Their Biopolymeric Component,Food Technol. 40:89–95 (1987).
- Muñoz, J., and P. Sherman, Dynamic Viscoelastic Properties of Some Commercial Salad Dressing,J. Texture Studies 21:411–426 (1990).
- van den Tempel, M., Mechanical Properties of Plastic Disperse Systems at Very Small Deformations,J. Colloid Sci. 16:284–296 (1961). CrossRef
- Chawla, P., J.M. deMan, and A.K. Smith, Crystal Morphology of Shortenings and Margarines,Food Structure 9:329–336 (1990).
- Restructuring butterfat through blending and chemical interesterification. 3. Rheology
Journal of the American Oil Chemists’ Society
Volume 73, Issue 8 , pp 983-989
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- Cone penetrometry
- dropping point
- hardness index
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