Fatty acid composition of the common octopus, Octopus vulgaris, in relation to rearing temperature and body weight

Biosynthesis of essential fatty acids in Octopus vulgaris (Cuvier, 1797): Molecular cloning, functional characterisation and tissue distribution of a fatty acyl elongase

“…These results emphasise that n-6 FA in general, and especially ARA (20:4n-6), might play particularly important physiological roles in the common octopus. Consistent with this, several studies have reported unexpectedly high levels of ARA in tissues of common octopus that were unlikely to derive purely from dietary origin and, thus, an active biosynthesis of ARA in this species was postulated (Milou et al, 2006;García-Garrido et al, 2010;Monroig et al, 2012a). In the present study, the efficiency shown by the octopus Elovl to elongate certain PUFA substrates indicates that this enzyme could contribute to the endogenous biosynthesis of ARA in this species.…”

Commercial squids: Characterization, assessment of potential health benefits/risks and discrimination based on mineral, lipid and vitamin E concentrations

“…The fatty acid profiles (as relative percentage of total fatty acids) are in accordance to other previous studies concerning L. duvaucelii from Thailand (SFA 41.3%, MUFA 14.1% and PUFA 44.7%; Chedoloh et al, 2011) and Egypt (SFA 44.6%, MUFA 6.7% and PUFA 48.7%; Gabr, 2010), L. vulgaris from the Mediterranean Sea (SFA 32.9%, MUFA 9.4% and PUFA 57.3% (Miliou et al, 2006); SFA 35.7%, MUFA 9.0% and PUFA 51.1% (Navarro and Villanueva, 2000); SFA 31.8-35.3%, MUFA 7.3-8.1% and PUFA 52.8-55.9% (Ozogul et al, 2008); SFA 36.8%, MUFA 7.4% and PUFA 51.1% (Salman et al, 2007)) and L. gahi caught in Falkland Islands (SFA 27.6%, MUFA 8.8% and PUFA 61.1% (Norambuena et al, 2012); SFA 30.9%, MUFA 13.6% and PUFA 55.2% (Phillips et al, 2003)). No complete profile description was found for L. opalescens (Tziouveli et al, 2011) and no data was found for L. reynaudii.…”

“…Seafood polyunsaturated fatty acids (PUFA) are rich in long-chains of x-3 (Chow, 2008;Miliou et al, 2006;Navarro and uum source flame atomic absorption spectrometry (HR-CS-FAAS). The applied ma-trix modifiers for high-resolution continuum source graphite furnace atomic absorption spectrometry (HR-CS-GFAAS) determinations were 1% v/v NH4H2PO4 Villanueva, 2000;Salman et al, 2007), with a recognized imporfor Cd and Pb analyses, 1% v/v Mg(NO3)2 for Cr and Fe, 0.05% v/v Mg(NO3)2 for Ni tance in the prevention of several of the modern health disorders (Russo, 2009).…”

“…To the best of our knowledge, information about fatty acids composition, cholesterol and vitamin E concentrations in commer-cially available squids is scarce and even scarcer for squids other than the L. vulgaris species (Passi et al, 2002;Villanueva et al, 2009;Miliou et al, 2006;Navarro and Villanueva, 2000;Ozogul et al, 2008;Salman et al, 2007). Cholesterol concentration was previously described for L. gahi (García-Garrido et al, 2011;Valver-de et al, 2012) and L. duvaucelii (Mathew et al, 1999;Uddin et al, 2001), while vitamin E data were only found for L. vulgaris (Passi et al, 2002;Villanueva et al, 2009).…”

Timing of digestion, absorption and assimilation in octopus species from tropical (Octopus maya) and subtropical-temperate (O. mimus) ecosystems

“…cies to use lipids in a different way than tropical octopuses. An increase in the demand for eicosapentanoic acid (EPA) and docosohexanoic acid (DHA) occurs in O. vulgaris maintained at low temperature (15°C), indi cating that these fatty acids (FA) are used for biomembrane synthesis during growth (Miliou et al 2006). In contrast, the use of FA by O. vulgaris maintained at higher temperatures (i.e.…”