Abstract
The contents of natural antioxidants and the oxidative stability of rice bran oils at different refining steps were determined. Tocopherols and oryzanols were constant in crude and degummed oils but decreased in alkali-refined, bleached and deodorized oils. The process of degumming, alkali-refining, bleaching and deodorization removed 34% of the tocopherols and 51% of the oryzanols. During storage of deodorized oil for 7 wk, 34% of the tocopherols and 19% of the oryzanols were lost. The maximum weight gain, peroxide value and anisidine value were obtained from alkali-refined oil during storage. The order of oxidation stability was crude ≥ degummed > bleached = deodorized > alkali-refined oil.
References
Handbook on Rice Bran, Processing & Utilisation of Products, edited by B.M. Sheth, and B.V. Mehta, The Solvents Extractors' Association of India, Bombay, 1987, p. 528.
Sleeter, R.T.,J. Am. Oil Chem. Soc. 58:239 (1981).
Prabhakar, J.V., and K.V.L. Venkatesh, —Ibid., 63:644 (1986).
Okada, T., and N. Yamaguchi,Yukagaku 32:305 (1983).
Going, L.H.,J. Am. Oil Chem. Soc. 45:632 (1968).
Kwon, T.W., H.E. Snyder and H.G. Brown, —Ibid., 61:1843 (1984).
Jung, M.Y., S.H. Yoon and D.B. Min, —Ibid., 66:118 (1989).
Kim, S.K., C.J. Kim, H.S. Cheigh and S.H. Yoon, —Ibid., 62:1492 (1985).
Official Methods and Recommended Practices of the American Oil Chemists' Society, American Oil Chemists' Society, 4th edn., Champaign, 1989.
Standard Methods for the Analysis of Oils, Fats and Derivatives, IUPAC, edited by C. Paquot, and A. Hautfenne, 7th edn., Blackwell Scientific Publications Ltd., Oxford, 1987.
Carpenter, Jr., A.P.,J. Am. Oil Chem. Soc. 56:668 (1979).
Kim, I.H., and C.J. Kim,Korean J. Food Sci. Technol. 23:76 (1991).
Olcott, H.S., and E. Einset,J. Am. Oil Chem. Soc. 35:161 (1958).
SAS Institute, Inc.,SAS Users Guide, Cary, 1982.
Cho, S.Y., and S.H. Yoon,Foods and Biotechnol. 1:31 (1992).
Yoon, S.H., and D.B. Min,Korean J. Food Sci. Technol. 19:23 (1987).
Dziedzic, S.Z., and B.J.F. Hudson,J. Am. Oil Chem. Soc. 61:1042 (1984).
Mistry, B.S., and D.B. Min,J. Food Sci. 62:610 (1987).
Mistry, B.S., and D.B. Min, —Ibid., 52:786 (1987).
Flavor Chemistry of Fats and Oils, edited by D.B. Min, and T.H. Smouse, American Oil Chemists' Society, Champaign, 1985, p. 133.
Yuki, E., and Y. Ishikawa,J. Am. Oil Chem. Soc. 53:673 (1976).
Tanaka, A., A. Kato and T. Tsukiya, —Ibid., 48:95 (1971).
Bailey's Industrial Oil and Fat Products, Vol. 1, 4th edn., edited by D. Swern, John Wiley & Sons, New York, 1982, p. 407.
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Yoon, S.H., Kim, S.K. Oxidative stability of high-fatty acid rice bran oil at different stages of refining. J Am Oil Chem Soc 71, 227–229 (1994). https://doi.org/10.1007/BF02541562
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DOI: https://doi.org/10.1007/BF02541562