Abstract
Several pilot-scale trials reported in this paper, using palm stearin-rice bran oil (PS-RBO) blends, obviously did not contain trans FA (TFA), whereas the commercial products were found to contain 18–27% TFA. The effects of processing conditions such as rate of agitation, crystallization temperature, and composition of the blends on the crystal structure of shortenings were studied. The products were evaluated for their physicochemical characteristics using DSC, X-ray diffraction (XRD), HPLC, and FTIR techniques. The formulation containing 50% PS and 50% RBO showed melting and cooling characteristics similar to those of hydrogenated commercial “vanaspati” samples. Analysis of the FA composition revealed that the formulated shortenings contained 15–19% C18∶2 PUFA. Tocopherol and tocotrienol contents of the experimental shortenings were in the range of 850–1000 ppm with oryzanol content up to 0.6%. XRD studies demonstrated that the crystal form in the shortenings was predominantly the most stable β′ form, and there was less of the undesirable β form.
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References
Mensink, R.P., and M.B. Katan, Effect of Dietary Trans Fatty Acids on High-Density and Low-Density Lipoprotein Cholesterol Levels in Healthy Subjects, N. Engl. J. Med. 323:439–445 (1990).
Hu, H.B., M.J. Stampfer, J.E. Manson, E. Rimm, G.A. Colditz, B.A. Rosner, C.H. hennekens, and W.C. Willet, Dietary Fat Intake and the Risk of Coronary Heart Disease in Women, ——Ibid. 337:1491–1499 (1997).
Medina-Juarez, L.A., N. Gamez-Meza, J. Ortega-Garcia, J.A. Noriega-Rodriguez, and O. Angulo-Guerrero, Trans Fatty Acid Composition and Tocopherol Content in Vegetable Oils Produced in Mexico, J. Am. Oil Chem. Soc. 77:721–724 (2000).
Yoshino, G., T. Kazumi, M. Amano, M. Takeiwa, T. Yamasaki, S. Takashima, M. Iwai, H. Hatanaka, and S. Baba, Effects of γ-Oryzanol on Hyperlipidemic Subjects, Curr. Therapeutic Res. 45:543–552 (1989).
Kang, M.H., Y. Kawai, M. Naito, and T. Osawa, Dietary Defatted Sesame Flour Decreases Susceptibility to Oxidative Stress in Hypercholesterolemic Rabbits, J. Nutr. 129:1885–1890 (1999).
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).
Hauman, B.F., Tools: Hydrogenation, Interesterification, INFORM 5:668–670 (1994).
Lida, H.M.D.N., and A.R.M. Ali, Physicochemical Characteristics of Palm-Based Oil Blends for the Production of Reduced Fat Spreads, J. Am. Oil Chem. Soc. 75:1625–1631 (1998).
Kok, L.L., W.R. Fehr, E.G. Hammond, and P.J. White, Trans Free Margarine from Highly Saturated Soybean Oil, ——Ibid. 76:1175–1181 (1999).
Nor Aini, I., C.H. Che Maimon, H. Hanirah, S. Zawiah, and Y.B. Che Man, Trans-Free Vanaspati Containing Ternary Blends of Palm Oil-Palm Stearin-Palm Olein and Palm Oil-Palm Stearin-Palm Kernel Olein, ——Ibid. 76:643–648 (1999).
Toro-Vazquez, J.F., M. Briceño-Montelongo, E. Dibildox-Alvarado, M. Charó-Alonso, and J. Reyes-Hernández, Crystallization Kinetics of Palm Stearin in Blends with Sesame Seed Oil, ——Ibid. 77:297–310 (2000).
Lambelet, P., and A. Raemy, Iso-solid Diagrams of Fat Blends from Thermal Analysis Data, ——Ibid. 60:845–847 (1983).
International Union of Pure and Applied Chemistry (IUPAC) Standard Methods for the Analysis of Oils and Fats and Derivatives, 7th edn., edited by C. Paquot and A. Hautfenne, Blackwell Scientific, London, 1987.
Renuka Devi, R., K.P. Suja, A. Jayalekshmy, and C. Arumughan, Tocopherol and Tocotrienol Profiles of Some Vegetable Oils by HPLC, J. Oil Technol. Assoc. India 32:176–182 (2000).
Renuka Devi, R., A. Jayalekshmy, and C. Arumughan, Effect of Parboiling on the Fatty Acid Composition and antioxidant Constituents of Rice Bran Oil from Some Popular Indian Rice Varieties, presented at the 55th Annual Convention and Seminar on Indian Oil Seeds and Edible Oil Sector, Challenges Ahead, IICT, Hyderabad, India, 2000.
Official Methods and Recommended Practices of the American Oil Chemist's Society, 4th edn., American Oil Chemists' Society, Champaign, 1989, Methods Cd 1-25, Ce 16-60, Cc 3-25.
The Prevention of Food Adulteration Act, 10th edn., edited by R.D. Agrawal, R.B. Sethi, Allahabad, India, 1983, pp. 942–943.
Metzroth, D.J., Shortening: Science and Technology, in Bailey's Industrial Oil and Fat Products, 5th edn., edited by Y.H. Hui, Interscience Publishers, New York, 1996, pp. 119.
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Mayamol, P.N., Samuel, T., Balachandran, C. et al. Zero-trans shortening using palm stearin and rice bran oil. J Amer Oil Chem Soc 81, 407–413 (2004). https://doi.org/10.1007/s11746-004-0914-7
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DOI: https://doi.org/10.1007/s11746-004-0914-7