Abstract
Canola sediment was obtained from an industrial filter cake by solvent extraction. When heated in the differential scanning calorimeter (DSC) (5–100°C), the sediment exhibited a single narrow melting peak at around 74.8°C. No solid-state polymorphic transformation of the material could be detected over this temperature range. The X-ray powder diffraction pattern of canola sediment resembled waxes from other sources with an orthorhombic unit cell. The phase transition behavior of canola sediment in oil was studied by both DSC and polarizing microscopy. With increasing ratio of oil/sediment, a reduction in both melting temperature and transition enthalpy was observed. The shape of the supercooling curve resembled that of the melting curve. The induction time was determined by spectrophotometry and was used to calculate the interfacial free energyσ between sediment and oil; σ=4.71 erg/cm2. The effect of temperature and sediment concentration on the clouding time of canola oil was studied; the clouding time was the shortest at 5°C.
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References
Biliaderis, C.G., and N.A.M. Eskin,Encyclopedia of Food Science and Technology, John Wiley & Sons, New York, 1991, pp. 264–277.
McDonald, B.E., inCanola Oil, Properties and Performance, edited by M. Vaisey-Genser, and N.A.M. Eskin, The Canola Council of Canada, Winnipeg, 1987, pp. 41–45.
Vaisey-Genser, M., and D.F.G. Harris,Ibid.in, pp. 5–9.
Daun, J.K., and L.E. Jeffery, inCanola, 9th Project Report, The Canola Council of Canada, Winnipeg, 1991, pp. 436–440.
Rivarola, G., M.C. Anon and A. Calvelo,J. Am. Oil Chem. Soc. 62:1508 (1985).
Chulu, C.L., P. Barlow and M. Hole,Trop. Sci. 29:33 (1989).
Turkulov, J., E. Dimic, Dj. Karlovic and V. Vuksa,J. Am. Oil Chem. Soc. 63:1360 (1986).
Sato, K., inCrystallization and Polymorphism of Fats and Fatty Acids, edited by N. Garti, and K. Sato, Marcel Dekker, New York, 1988, pp. 227–263.
Basson, I., and E.C. Reynhardt,J. Phys. D. Appl. Phys. 21:1421 (1988).
Basson, I., and E.C. Reynhardt, Ibid.1429 (1988).
Basson, I., and E.C. Reynhardt, Ibid.1434 (1988).
Powder Diffraction File: Organic, sets 1–5, Joint Committee on Powder Diffraction Standards, Swarthmore, 1960, p. 127.
Hildebrand, J.H., and R.L. Scott,The Solubility of Nonelectrolytes, Dover Publishers, New York, 1964.
Khamskii, E.V.,Crystallization from Solutions, Consultants Bureau, New York, 1969.
Biliaderis, C.G., C.M. Page, L. Slade and R.R. Sirett,Carbohydr. Polym. 5:367 (1985).
Official Methods and Recommended Practices of American Oil Chemists’ Society, 4th edn., Vol. 1, American Oil Chemists’ Society, Champaign, 1990, Method Cc 11–53.
Kleiman, R., F.R. Earle and I.A. Wolff,J. Am. Oil Chem. Soc. 46:505 (1969).
Iyengar, B.T.R., and H. Schlenk,Lipids 4:28 (1969).
Norton, I.T., C.D. Lee-Tuffnell, S. Ablett and S.M. Bociek,J. Am. Oil Chem. Soc. 62:1237 (1985).
Hale, J.E., and F. Schroeder,Lipids 16:805 (1981).
Timms, R.E.,Australian J. Dairy Sci. 12:130 (1978).
Hannewijk, J., A.J. Haighton and P.W. Hendrikse, inAnalysis and Characterization of Oils, Fats and Fat Products, Vol. 1, edited by H.A. Boekenoogen, Interscience Publishers, London, 1964, pp. 119–182.
Mullin, J.W.,Crystallization, Butterworth & Co. Ltd., London, 1972, p. 142.
Brice, J.C.,The Growth of Crystals from Liquids, North-Holland Publishing Co., Amsterdam, 1973, p. 93.
Phipps, L.W.,Trans. Faraday Soc. 60:1873 (1964).
Ng, W.L.,J. Am. Oil Chem. Soc. 66:1103 (1989).
Lourens, J.A.J., and E.C. Reynhardt,J. Phys. D. Appl. Phys. 12:1963 (1979).
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Liu, H., Biliaderis, C.G., Przybylski, R. et al. Phase transitions of canola oil sediment. J Am Oil Chem Soc 70, 441–448 (1993). https://doi.org/10.1007/BF02542573
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DOI: https://doi.org/10.1007/BF02542573