Antioxidant properties of mono- and dihydroxyphenolic acids and their alkyl esters were examined, with emphasis on the relationship between their molecular structure and antioxidant activity. Test media with different tocopherol level were used for determining the oxidative stability: original refined sunflower oil (total tocopherols 149.0 mg/kg), partially tocopherol-stripped sunflower oil (to...

Background & Aim: Ocimum basilicum L. is belong to the Lamiaceae family which is cultivated as a culinary, industrial and medicinal plants in some countries from thousands years ago. The seed of this plant is rich in poly un-saturated fatty acids (PUFA) and produced a large amount of mucilage. Experimental: The oil of seed was extracted separately and converted to fatty acids...

the rapid expansion in world production of palm oil over the last three decades has attracted the attention of the oils and fats industry. oil palm gives the highest yield of oil per unit of any crop. palm oil is the major oil produced, with annual world production in excess of 50 million tonnes. throughout the world, 90% of palm oil is used for edible purposes (e.g., margarine, deep fat frying...

The lipid patterns of plasma, red blood cells, and leucocytes from normal controls and from patients with multiple sclerosis and motor neurone disease have been studied by thin-layer chromatography. The fatty acid composition of cholesterol esters and lecithin in plasma from normal subjects and from patients with multiple sclerosis are reported. The fatty acid composition of lecithin of cerebra...

Multi-competitive enzymatic reactions were performed to determine the selectivity properties of enzymes immobilised in polyacrylamide-alginate (pAAm-Alg) microcapsules. The transesterification of fatty acid ethyl esters of different chain lengths (C2–C14) with various alcohols catalysed by the enzyme lipase Mucor Miehei was chosen as a test system. While the free enzyme exhibited higher selecti...

The authors analyzed the long-chain fatty acids derived from the wax and sterol ester fractions of meibomian secretions from patients with chronic blepharitis and normal individuals. Meibomian secretions were partitioned into separate lipid classes by thin-layer chromatography (TLC). Wax and sterol esters were eluted and transesterified. The liberated fatty acid methyl esters (FAME) were analyz...

Lipogenesis was measured with gluc0se-2-'~C and acetate-lJ4C in the everted aortas of normal and atherosclerotic rabbits. More glucose-2-14C than acetate-l-14C was incorporated into lipids in both the normal and the atherosclerotic aorta. Radiocarbon from glucose-2J4C appeared mainly in triglycerides and phospholipids with a small amount in cholesteryl esters. Incorporation increased almost thr...

Suberin and waxes embedded in the suberin polymer are key compounds in the control of transpiration in the tuber periderm of potato (Solanum tuberosum). Suberin is a cell-wall biopolymer with aliphatic and aromatic domains. The aliphatic suberin consists of a fatty acid polyester with esterified ferulic acid, which is thought to play an important role in cross-linking to the aromatic domain. In...

Membrane fatty acid composition of CaCo-2 cells was modified by incubating the cells for 8 days in medium containing 100 microM eicosapentaenoic acid or palmitic acid. The effect of membrane fatty acid changes on cholesterol metabolism was then studied. Cells incubated with eicosapentaenoic acid had significant changes in membrane fatty acid composition with an accumulation of 20:5 and 22:5 and...