Gaschromatographische Analyse des Samenfettes der mittelamerikanischen Fevillea Cordifolia (Cucurbitaceae)
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| Autores: | , , , , |
|---|---|
| Formato: | artículo original |
| Fecha de Publicación: | 1992 |
| Descripción: | The fat of the seeds of Fevillea cordifolia was extracted under exclusion of oxygen and light and then characterized by 13C-NMR in regard to the contained unsaturated acid moieties. The total fat was separated by HPLC to yield one major fraction (˜ 45%), one medium fraction (˜ 18%) and some minor fractions. All substantial fractions showed the chromophore of a conjugated triene. According to MS-analysis the major fraction consists of distearyleleostearylglycerol. The total fat was converted by transesterification to a mixture of fatty acids methyl esters, which was analyzed by subsequent HPLC and GC: Main fatty acids were found to be stearic acid (53%) and the triple conjugated α-eleostearic acid (31%). Interestingly, punicic acid, which is isomeric to α-eleostearic acid and contained in various seed fats of Cucurbitaceae plants, could not be detected. |
| País: | Kérwá |
| Institución: | Universidad de Costa Rica |
| Repositorio: | Kérwá |
| OAI Identifier: | oai:kerwa.ucr.ac.cr:10669/89143 |
| Acceso en línea: | https://onlinelibrary.wiley.com/doi/abs/10.1002/lipi.19920940804 https://hdl.handle.net/10669/89143 |
| Palabra clave: | Fevillea Cordifolia Cucurbitaceas analisis por cromatografía de gases composición de la grasa ac. palmítico ac. margarínico ac. araquínico ac. oleico ác. linoleico ác. alfa-eleoesteárico isómeros del ácido octadecatrienoico Fat ACIDS OILS AND FATS INDUSTRY SEED |