Oxidative stability of flaxseed lipids during baking

Abstract

This study examined the stability of whole and ground flaxseed, either alone or as an ingredient in a muffin mix, by measuring oxygen consumption and changes in α-linolenic acid under various conditions. When ground flaxseed was heated at 178°C in a sealed tube, headspace oxygen decreased from 21 to 2% within 30 min, while that of whole flaxseed decreased only slightly up to 90 min at 178°C. Under the same conditions, the oxygen consumption of lipids extracted from an equivalent amount of flaxseed was between the whole flaxseed and the ground flaxseed. After heating to 178°C for 1.5 h, α-linolenic acid decreased from 55.1 to 51.3% in ground flaxseed, and to 51.7% in lipid extracts, but it remained unchanged in the whole flaxseed. Ground flaxseed with large (<20 mesh) or small (>35 mesh) particle size absorbed more oxygen than samples with medium particle size when heated at 122°C for 8 h. Long-term storage of whole or ground flaxseed or lipid extracts showed that all three preparations were stable at room temperature for 280 d with 12 h light/dark cycles. A muffin mix, containing 28.5 wt% flaxseed flour, consumed oxygen more rapidly than a control muffin without flaxseed flour at a baking temperature of 178°C for 2 h, but the α-linolenic acid remained unchanged in both muffin mixes. Polymers derived from triglyceride oxidation and newtrans isomers of α-linolenic acid were not detected under the present experimental conditions. Under typical baking conditions, there is minimal loss of α-linolenic acid from flaxseed, although the manner of incorporation of flaxseed in food products should be considered to minimize oxidation of α-linolenic acids.

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References

  1. 1.

    Anon.,INFORM 1:944 (1990).

  2. 2.

    Holman, R.G., S.B. Johnson and T.F. Hatch,Am. J. Clin. Nutr. 35:617 (1982).

    CAS  Google Scholar 

  3. 3.

    Bjerve, K.S., S. Fisher and K. Alme,46:570 (1987).

    CAS  Google Scholar 

  4. 4.

    Bjerve, K.S., I.L. Mostad and L. Thoresen,45:66 (1987).

    CAS  Google Scholar 

  5. 5.

    Aryee-Bohannon, F., and M.L. Gengler, inProceedings of the 54th Flax Institute of the United States, University of North Dakota, 1993, p. 11.

  6. 6.

    Cunnane, S.C., S. Ganguli, C. Menard, A. Liede, M.J. Hamadeh, Z.-Y. Chen, T.M.S. Wolever and D.J.A. Jenkins,Brit. J. Nutr. 69:443 (1993).

    Article  CAS  Google Scholar 

  7. 7.

    Thompson, L.U., M. Serraino and S.C. Cunnane, inProceedings of the 54th Flax Institute of the United States, University of North Dakota, 1992, p. 32.

  8. 8.

    Oomah, B.D., G. Mazza and E. Kenaschuk,Ibid. Proceedings of the 54th Flax Institute of the United States, University of North Dakota, 1992, p. 59.

  9. 9.

    Bunick, F.J., Lipid Autoxidation in Human Red Blood Cell Membrane, Ph.D. Dissertation, University of Massachusetts at Amherst, Massachusetts, 1984.

    Google Scholar 

  10. 10.

    Chen, Z.-Y. and W.W. Nawar,J. Am. Oil Chem. Soc. 68:47 (1991).

    CAS  Google Scholar 

  11. 11.

    Shukla, V.K.S., and E.G. Perkins,Lipids 26:23 (1991).

    CAS  Google Scholar 

  12. 12.

    Privett, O.S., and F.W. Quackenbush,31:225 (1954).

    CAS  Google Scholar 

  13. 13.

    Husain, S., R. Jerao and S. Matsushita inAmino-Carbonyl Reactions in Food and Biological System, edited by M. Fugimaki, M. Namiki and H. Kato, Elsevier Press, New York, 1984, p. 295.

    Google Scholar 

  14. 14.

    Bratkowska, L.,Acta Alim Pol. 4:256 (1978).

    Google Scholar 

  15. 15.

    King, M.F., L.C. Boyd, and B.W. Sheldon,J. Am. Oil Chem. Soc. 69:545 (1992).

    CAS  Google Scholar 

  16. 16.

    Ratnayake, W.M.N., W.A. Behens, P.W.F. Fischer, M.R. L'abbe, R. Mongeau and J.L. Beare-Rogers,J. Nutr. Biochem. 3:232 (1992).

    Article  CAS  Google Scholar 

  17. 17.

    Ackman, R.G., S.N. Hooper and D.L. Hooper,J. Am. Oil Chem. Soc. 51:42 (1974).

    CAS  Google Scholar 

  18. 18.

    Grandgirard, J.L., J.L. Sebedio and J. Fleury,61:1563 (1984).

    CAS  Google Scholar 

  19. 19.

    Wolff, R.L., and J.L. Sebedio,68:719 (1991).

    CAS  Google Scholar 

  20. 20.

    Wolff, R.L.,70:219 (1993).

    CAS  Google Scholar 

  21. 21.

    Grandgirard, A., A. Piconneaux, J.L. Sebedio, S.F. O'Keefe, E. Semon and J.L. Lequere,Lipids 24:799 (1989).

    CAS  Google Scholar 

  22. 22.

    Blond, J.P., C. Henchiri, P. Precigou, A. Grandgirard and J.L. Sebedio,Nutr. Res. 10:69 (1990).

    Article  CAS  Google Scholar 

  23. 23.

    O'Keefe, S.F., M. Lagarde, A. Grandgirard and J.L. Sebedio,J. Lipid Res. 31:1241 (1990).

    Google Scholar 

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Correspondence to Z. Y. Chen.

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Chen, Z.Y., Ratnayake, W.M.N. & Cunnane, S.C. Oxidative stability of flaxseed lipids during baking. J Am Oil Chem Soc 71, 629–632 (1994). https://doi.org/10.1007/BF02540591

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Key Words

  • α-Linolenic acid
  • flaxseed
  • flaxseed muffin
  • oxidation
  • oxygen absorption