Summary
The composition of the fat acids of six samples of American tall oil has been determined. They are all quite similar in fat acid composition. The average values were: linoleic acid 48%; oleic acid 45%; saturated acids 7%. There is present approximately 11% of conjugated linoleic acid, probably formed by the action of alkali and heat during the cooking of the pulp from which the tall oil was formed.
Detailed fractional distillation of a sample of the methyl esters of the fat acids showed that the saturated acids are mostly palmitic, that there may be about 1% of palmitoleic, and that the conjugated linoleic acid present can be separated and concentrated by fractional distillation.
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Paper No. 65, Journal Series, Research Department, General Mills, Inc.
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Anderson, R.H., Wheeler, D.H. The fat acids of American tall oil. Oil Soap 22, 137–141 (1945). https://doi.org/10.1007/BF02637376
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DOI: https://doi.org/10.1007/BF02637376