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A highly sensitive and accurate reference method for determination of docosenoic acid (mainly erucic acid, 22:1n-9) in different rapeseed oils is described. A fixed amount of [1-14C] erucic acid methyl ester (about 1 microgram) is added to a fixed amount of oil. After treatment with sodium
Rats were fed rapeseed oil rich in eicosenoic (20:1) and docosenoic (22:1) acids for 7 days, and the fatty acid composition of the lipid classes of serum and serum lipoproteins was determined. Concentrations of 20:1 and 22:1 acids in the lipid classes were variable, especially among lipoproteins,
132 male Sprague-Dawley rats were given diets for 30 weeks including rapeseed oil with 41.4% erucic acid, partially hydrogenated fish oil with 15.1% docosenoic acids, or peanut oil with no docosenoic acids. Four diets were isocaloric and contained respectively 21% rapeseed oil (8.7% w/w erucic
Two partially hydrogenated herring oils, containing 15% or 30% of C 22: 1, supplemented or not with linoleic (maize oil), have been fed for 16 weeks to growing rats (15% by weight in the diet), and their effects have been compared to those of peanut oil (controls), and to those of 2 mixtures of
The natural docosenoic acid in the human diet can be predominantly 22:1 omega 9 if of plant (generally rapeseed oil) origin, or predominantly 22:1 omega 11 if of marine origin. The fatty fatty acids of dietary fats (meals) and plasma lipids of some Greenland eskimos were examined by open-tubular
Rapeseed oil has a growth retarding effect in animals. Some investigators claim that the high content of erucic acid in rapeseed oil alone causes this effect, while others consider the low ratio saturated/monounsaturated fatty acids in rapeseed oil to be a contributory factor. Normally erucic acid
Cynomolgi (Macaca fascicularis) were fed diets containing 25% rapeseed oil (RSO), partially hydrogenated herring oil (PHHO), or a 3:1 mixture of lard and corn oil as control for 4 months. The RSO contained approximately 25% of the fatty acids as erucic acid; the PHHO contained a similar
A series of 4 experiments with piglets and one experiment with rats has been conducted to establish the cardiac lipid status of weanling (3 weeks old) male animals fed fats with different contents of docosenoic fatty acids. Experimental fats were rapeseed oil (RSO) (48.0% 22:1), refined fish oil
Male Sprague-Dawley rats, 4 weeks old, were subjected to an ambient temperature of 4 C for periods up to 24 days and fed a synthetic diet containing one of the following oils: peanut oil (PO), rapeseed oil (RO), low erucic acid rapeseed oil (LO), and partially hydrogenated marine oil (HO), each at
Cynomolgus monkeys (Macaca fascicularis) were fed diets containing 25% rapeseed oil (RSO), partially-hydrogenated herring oil (PHHO) or a 3:1 mixture of lard/corn oil as control (CON) for 4 months. The RSO contained approximately 25% of the fatty acids as erucic acid (cis-docos-13-enoic, 22:1w9)
The influence of dietary partially hydrogenated marine oils on distribution of phospholipid fatty acids in rat liver microsomes was studied with particular reference to the metabolism of linoleic acid. Five groups of weanling rats were fed diets containing 20% (w/w) peanut oil (PO), partially
Cardiac lipids (triglycerides and phospholipids) of weanling rats fed diets containing 15% by weight of rapeseed oil (RSO), hydrogenated rapeseed oil (HRSO), trierucin (TE) or tribassidin (TB) were analyzed after 3 and 7 days of feeding. The amount of C22:1 was made equal in the 4 diets.
The influence of dietary partially hydrogenated marine oils containing docosenoic acid on rat heart mitochondrial membrane phospholipid fatty acid composition was studied with particular reference to cardiolipin and oxidative phosphorylation. Five groups of male weanling rats were fed diets
The aim of the present study was to investigate the influence of partially hydrogenated vegetable and marine oils on membrane composition and function of liver microsomes and platelets with particular reference to the metabolism of linoleic acid and the production of arachidonic acid metabolites.