The separation of pinolenic acid from distilled tall oil fatty acid by the iodolactonization method was studied. The significance of prefractionation of tall oils and details of the iodolactonization procedure for the pinolenic acid purity achieved is discussed.
Hase, A., Ala-Peijari, M., Kaltia, S., & Matikainen, J. (1992). Separation and purification of pinolenic acid by the iodolactonization method. Journal of the American Oil Chemists' Society, 69(8), 832-834. https://doi.org/10.1007/BF02635927