1. Sonntag N.O.V., inBailey’s Industrial Oil and Fat Products, Vol. I, 4th edn., edited by D. Swern, John Wiley and Sons, New York, 1981, p.49.
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4. Davies M.G., I.M. Zawad and G.S.D. Weir,Scientific and Technological Surveys. No. 112, Leatherhead Food Res. Assoc, Leatherhead, Surrey, U.K., 1979.
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