constantpolyunsaturated/monounsaturated/saturatedfatty acids snd p-6!n-3 ratios ef dietary fats in rats. Dietary fat centaining linoleic a id as the sole polyunsaturated fatty acid (PUFA) vvas alse given as a contrel. The cencentration of serum triglyceride and phosphelipid in the three n-3 PUFA groups was lower than in the linoleic acid groilp. The hepatic higlyceride concentration was lower a...

Human and rat have an innate preference for fat which may lead to obesity. This preference may be driven by the taste component linoleic acid, the principle free fatty acid found in corn oil. It has been shown that rats are capable of detecting linoleic acid within a solution. It is speculated that rats also perceive an increase in intensity when linoleic acid is added to the solution. This exp...

Linoleic acid, a polyunsaturated C18 fatty acid, is one of the major fatty acids in the coronary arterial wall. Although diets rich in linoleic acid reduce blood pressure and prevent coronary artery disease in both humans and animals, very little is known about its mechanism of action. We believed that its beneficial effects might be mediated by changes in vascular tone. We investigated whether...

Lipid peroxidation (LPO), an oxidative chain reaction often occurring in the human body and food, is harmful to health. Due its convenience low cost, this guideline highlights benefits drawbacks of LPO models by spectrophotometer vitro vivo. The preparation process mechanism lipid substrates, oxidation triggers detection methods are discussed paper better screen antioxidants. substrates mostly ...

Propolis is a resinous substance collected by bees from plants with a complex and variable chemical composition. Propolis and its fractions possess multiple biological activities. This study focused on a chemical and statistical comparison between four Tunisian Propolis Essential Oils (PEO) and its antioxidant activities. Volatile oils were extracted by hydrodistillation a...

A gustatory transduction mechanism for free fatty acids (FFAs) has been described in isolated rat taste receptor cells; however, the ability of behaving rats to detect FFAs has not been characterized. Through conditioned taste aversion (CTA) methodology, this study defines the ability of rats to detect and avoid the two principal FFA components of corn oil, linoleic and oleic acid. Following ta...

Japanese horse chestnut (Aesculus turbinata) seed extract inhibits the activity of cyclooxygenase (COX), but its active constituents have not been identified. In the present study, COX inhibitors were isolated from the hexane extract of this seed by means of 4 steps of liquid chromatography and were identified by gas chromatography/mass spectrometry and nuclear magnetic resonance. The COX inhib...

The process called biohydrogenation occurs mainly in ruminant animals and during it, unsaturated fatty acids, and particularly poly-unsaturated ones (linoleic and linolenic) coverts to a saturated form of stearic acid. For many years, the beneficial effects of biohydrogenation intermediate fatty acids like cis-9 trans-11 linoleic acid, the main natural isomer of conjugated linoleic acids (CLA),...

While oat (Avena sativa) has long been known to produce epoxy fatty acids in seeds, synthesized by a peroxygenase pathway, the gene encoding the peroxygenase remains to be determined. Here we report identification of a peroxygenase cDNA AsPXG1 from developing seeds of oat. AsPXG1 is a small protein with 249 amino acids in length and contains conserved heme-binding residues and a calcium-binding...

An uncoupling protein was recently discovered in plant mitochondria and demonstrated to function similarly to the uncoupling protein of brown adipose tissue. In this work, green tomato fruit mitochondria were purified on a self-generating Percoll gradient in the presence of 0.5% bovine serum albumin to deplete mitochondria of endogenous free fatty acids. The uncoupling protein activity was indu...