Abstract
The fatty acid composition of the edible seeds from Pinus cembroides edulis (a nut pine), that might have been a commercial source of Δ5-olefinic acids in the United States, has been established. The dehulled seeds are rich in oil (64% by weight) and are characterized by high levels of both oleic and linoleic acids (ca. 47 and 41%, respectively), with only 10% of saturated acids. Δ5-Olefinic acids, which were not reported previously in this species, are exceptionally low as compared to most other conifer species: 5,9-18:2 acid, 0.1%; 5,9,12-18:3 acid, 0.4%; 5, 11, 14-20:3 acid, 0.3%. In this respect, P. cembroides edulis seed oil closely resembles that of P. pinea (a circum-Mediterranean species), which emphasizes the morphological and taxonomic relationship between the sections to which the two species belong (Parryana and Pinea, respectively).
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Wolff, R.L., Marpeau, A.M. Δ5-olefinic acids in the edible seeds of nut pines (Pinus cembroides edulis) from the United States. J Amer Oil Chem Soc 74, 613–614 (1997). https://doi.org/10.1007/s11746-997-0191-0
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DOI: https://doi.org/10.1007/s11746-997-0191-0