Abstract
Pilot plant-processed samples of soybean and canola (lowerucic acid rapeseed) oil with fatty acid compositions modified by mutation breeding and/or hydrogenation were evaluated for frying stability. Linolenic acid contents were 6.2% for standard soybean oil, 3.7% for low-linolenic soybean oil and 0.4% for the hydrogenated low-linolenic soybean oil. The linolenic acid contents were 10.1% for standard canola oil, 1.7% for canola modified by breeding and 0.8% and 0.6% for oils modified by breeding and hydrogenation. All modified oils had significantly (P<0.05) less room odor intensity after initial heating tests at 190°C than the standard oils, as judged by a sensory panel. Panelists also judged standard oils to have significantly higher intensities for fishy, burnt, rubbery, smoky and acrid odors than the modified oils. Free fatty acids, polar compounds and foam heights during frying were significantly (P<0.05) less in the low-linolenic soy and canola oils than the corresponding unmodified oils after 5 h of frying. The flavor quality of french-fried potatoes was significantly (P<0.05) better for potatoes fried in modified oils than those fried in standard oils. The potatoes fried in standard canola oil were described by the sensory panel as fishy.
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References
Evans, C.D., K. Warner, G.R. List and J.C. Cowan,J. Am. Oil Chem. Soc. 49:578 (1972).
Dobbs, J.E., M. Vaisey-Genser and R. Diamant,J. Inst. Can. Sci. Technol. Ailment. 11:66 (1978).
Stevenson, S.G., M. Vaisey-Genser and N.A.M. Eskin,J. Am. Oil Chem. Soc. 61:1102 (1984).
Frankel, E.N., K. Warner and T.L. Mounts, Ibid.:1354 (1985).
Warner, K., T.L. Mounts and W.F. Kwolek, Ibid.:1483 (1985).
Cowan, J.C., C.D. Evans, H. Moser, G.R. List, S. Koritala, K.J. Moulton and H.J. Dutton, Ibid.:470 (1970).
Cowan, J.C., H. Moser, G.R. List and C.D. Evans, Ibid.:835 (1971).
Cowan, J.C., S. Koritala, K. Warner, G.R. List, K.J. Moulton and C.D. Evans, Ibid.:132 (1973).
Wilson, R.F., J.W. Burton and P. Kwanyuen, inEdible Fats and Oils Processing: Basic Principles and Modern Practices, edited by D. Erickson, American Oil Chemists’ Society, Champaign, 1989, pp. 355–359.
Mounts, T.L., K. Warner, G.R. List, R. Kleiman, E.G. Hammond and J.R. Wilcox,Ibid. 65:624 (1988).
Miller, L.A., and P.J. White,Ibid. 65:1324 (1988).
Liu, H., and P.J. White,Ibid. 69:533 (1992).
Smouse, T., inFlavor Chemistry of Fats and Oils, edited by T. Smouse, and D. Min, American Oil Chemists’ Society, Champaign, 1985, pp. 85–116.
Warner, K., inAnalyses of Fats, Oils, and Lipoproteins, edited by E. Perkins, American Oil Chemists’ Society, Champaign, 1991, pp. 344–386.
The Official Methods and Recommended Practices of the American Oil Chemists’ Society, 4th edn., Champaign, 1989.
Waltking, A.E., and H. Wessels,J. Assoc. Off. Anal. Chem. 64:1329 (1981).
Snedecor, G.W.,Statistical Methods, 5th edn., Ames, 1956.
Dobarganes, M.C., and M.C. Perez-Camino,J. Am. Oil Chem. Soc. 65:101 (1988).
Sebedio, J., A. Bonpunt, A. Grandgirard and J. Prevost,J. Agric. Food Chem. 38:1862 (1990).
Chu, Y.,J. Am. Oil Chem. Soc. 68:379 (1991).
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Warner, K., Mounts, T.L. Frying stability of soybean and canola oils with modified fatty acid compositions. J Am Oil Chem Soc 70, 983–988 (1993). https://doi.org/10.1007/BF02543024
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DOI: https://doi.org/10.1007/BF02543024