Restricted-Range Boraginaceae Species Constitute Potential Sources of Valuable Fatty Acids |
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Authors: | José Luis Guil-Guerrero Francisco Gómez-Mercado Rebeca Pilar Ramos-Bueno Miguel Ángel Rincón-Cervera Elena Venegas-Venegas |
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Affiliation: | 1. Tecnología de Alimentos, Universidad de Almería, 04120, Almería, Spain 2. Botánica, Universidad de Almería, 04120, Almería, Spain
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Abstract: | The aim of this work was to establish the richness in γ-linolenic acid (GLA, 18:3n-6) and stearidonic acid (SDA, 18:4n-3) of the seed oil of several restricted-range Boraginaceae species, in a search for new valuable oils as advantageous alternatives to the commercially available sources of both polyunsaturated fatty acids. To this end, seeds of selected Boraginaceae species were collected and analyzed. The highest GLA contents (% total fatty acids) were found in the seed oils of Symphytum caucasicum M.Bieb. (22.9 %), Anchusa undulata subsp. undulata (Ten.) Cout. (22.0 %), Anchusa puechii Valdés (20.0 %), Glandora nitida Thomas (19.2 %), Echium pininana Webb & Berth. (17.1 %) and Pentaglottis sempervirens (L.) L. H. Bailey (17.0 %). With regard to SDA, the highest percentage was found in the seed oil of Echium cantabricum (M. Laínz) Fdez. Casas & M. Laínz (14.7 %), followed by Lappula patula (Lehm.) Asch ex Gürke (13.6 %). It is noticeable that several GLA-enriched species stand under a great threat of extinction, thus revealing the importance of the preservation of the natural ecosystems for endangered species. |
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Keywords: | PUFA Stearidonic acid γ‐Linolenic acid Endemic Boraginaceae Symphytum caucasicum Anchusa puechii Glandora nitida Echium cantabricum Lappula patula |
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