The effects of eicosapentaenoic acid and oleic acid on lipid synthesis and secretion by HepG2 cells were examined to identify fatty acid specific changes in lipid metabolism that might indicate a basis for the hypolipidemic effect attributed to eicosapentaenoic acid and related n-3 fatty acids. Cellular glycerolipid synthesis, as determined by [3H]glycerol incorporation, increased in a concentr...

Safflower oil with high oleic acid content has a great value for both food and non-food uses. The trait is mainly controlled by recessive alleles at the Ol locus, although the influence of modifying genes has been suggested. The objective of the present research was to study the inheritance of very high oleic acid content (>85%) and its relationship with other traits such as nuclear male steril...

The effects of different rumen protected forms, oleamide, Ca oleate, of dietary oleic acid on the carcass quality and fatty acid composition in intramuscular and subcutaneous fat tissues of Hanwoo steer were examined. Sixty, 25 month old Hanwoo steers divided into three groups were fed no supplement (Control), 2% of oleamide (Oleamide) or Ca-oleate (Ca-Oleate) in their diet for 45 or 90 days. D...

Apoprotein (apo) A-1 binding to large triolein-rich emulsion particles saturated with cholesterol has been examined as a function of the oleic acid content. Six emulsion systems were formed containing 0.3-1.0% (by weight) oleic acid, 82.9-86.3% triolein, 10.6-7.2% egg yolk phosphatidylcholine, and 6.7-5.5% cholesterol. The average emulsion particle diameters calculated from these lipid composit...

Bound biotin-saturated cells were incubated in the presence of biotin and glucose (37 C, pH 7.5) with or without oleic acid, Tween 20, 40, 60, and 80, Aerosol OT, sodium dodecyl sulfate (SDS), cetyltrimethylammonium bromide, Triton X-100, Non-Ion-Ox, and Haemo-Sol. With low concentrations (up to 5 mug/ml) and short reaction times (up to 10 min), oleic acid stimulated free biotin accumulation. I...

new edible composite films formed from salep (orchis mascula) and 10%, 20%, and 30% (w/w) oleic acid were prepared by emulsification with the aim of improving the water vapor barrier and mechanical properties of the film. as oleic acid concentration increased up to 30% (w/w), oxygen permeability (27%), elongation at break (86%) and thickness (2%) of salep films increased significantly and the t...

mercury is one of the most toxic heavy metals present in aquatic systems, exhibiting a complex behaviour in the environment, where it may persist for decades after the source of pollution is stopped. hence, it is important develop new techniques for its removal from the aquatic systems. in this context, a particularly promising line of research is the use of new materials capable of up taking m...

Zinc oxide nano-particles with the average diameter of about 25 nm were modified with different mole ratios of trimetoxyvinyl silane (TMVS) and oleic acid, as coupling agents, in order to modify their surface properties and render them more hydrophobic. Then, dispersibility of the surface modified nano-particles was examined in some monomers with different levels of hydrophobicity, including me...

Free fatty acids, such as oleic acid, are able to act as uncouplers of oxidative phosphorylation in mitochondria [l]. They can also transport cations across membranes and may have a physiological role in iron transport in the gut [2]. We have previously shown that oleic acid can act as a K+/H+ ion exchange carrier in liposomes [3]. It was proposed that oleic acid is able to transport H+ and K+ ...

In an earlier study (Miwa, M., Hill, C., Kumar, R., Sugatani, J., Olson, M. S., and Hanahan, D. J. (1987) J. Biol. Chem. 262, 527-530) it was shown that an inhibitor of platelet-activating factor (PAF), a powerful endogenous mediator of platelet aggregation, was present in freeze-clamped perfused livers. Subsequently, we determined that this substance was a mixture of unsaturated free fatty aci...