Abstract
Copper and nickel hydrogenations give a wide distribution of double bonds in the monoene fraction from both reduced soybean and linseed oils. With copper catalysts, high pressure hydrogenation reduces the extent of this double bond distribution when compared with low pressure hydrogenation. With nickel catalysts, some Δ17-octadecenoate is formed but less than with a copper catalyst. In room odor evaluations, copper-hydrogenated soybean (CuHSB) oil gave higher scores and lower fishy responses than nickel-hydrogenated soybean oil after both had been exposed to fluorescent light. A mixture of CuHSB oil (33%) and peanut oil received room odor scores equal to or better than peanut oil alone, whether light exposed or not. Although hydrogenated products with remarkable stability to oxidation were obtained by copper hydrogenation of linseed oil, these oils have lower organoleptic stability when compared to nickel-hydrogenated, winterized soybean oil.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Koritala, S., and H.J. Dutton JAOCS 43:556 (1966).
Koritala, S., and H.J. Dutton, Ibid. 46:245 (1969).
Moulton, K.J., D.J. Moore and R.E. Beal, Ibid. 46:662 (1969).
Vigneron, P.Y., S. Koritala, R.O. Butterfield and H.J. Dutton, Ibid. 49:371 (1972).
Cowan, J.C., C.D. Evans, H.A. Moser, G.R. List, S. Koritala, K.J. Moulton and H.J. Dutton, Ibid. 47:470 (1970).
Cowan, J.C., Proc. Flax Institute of the U.S., Nov. 12–13, 1970, p. 28.
Schwab, A.W., and H.J. Dutton, JAOCS 25:57 (1948).
Dutton, H.J., A.W. Schwab, H.A. Moser and J.C. Cowan, Ibid. 25:385 (1948).
“AOCS Official and Tentative Methods of the American Oil Chemists' Society,” Champaign, Ill., Vol. I, Third edition, AOCS, 1964(revised to 1971), Method CD 12-57.
Moser, H.A., H.J. Dutton, C.D. Evans and J.C. Cowan, Food Technol. 4:105 (1950).
Evans, C.D., H.A. Moser, G.R. List, H.J. Dutton and J.C. Cowan, JAOCS 48:711 (1971).
Moser, H.A., C.D. Evans, J.C. Cowan and W.F. Kwolek, Ibid. 42:30 (1965).
Hirsch, J., Colloq. Int. Centre Nat. Rech. Sci. 99:11 (1961).
Emken, E.A., C.R. Scholfield and H.J. Dutton, JAOCS 41:388 (1964).
Johnston, A.E., and H.J. Dutton, Ibid. 49:98 (1972).
Scholfield, C.R., V.L. Davison and H.J. Dutton, Ibid. 44:648 (1967).
Author information
Authors and Affiliations
Additional information
ARS, USDA.
About this article
Cite this article
Cowan, J.C., Koritala, S., Warner, K. et al. Copper-hydrogenated soybean and linseed oils: Composition, organoleptic quality and oxidative stability. J Am Oil Chem Soc 50, 132–136 (1973). https://doi.org/10.1007/BF02640465
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02640465