The essentiality of the unsaturated fatty acids, linoleic and linolenic, was described by Burr and Burr in a series of papers from the late 1920’s to the early 1930’s (Burr et al., 1932). They are incorporated into membranes as such, and are precursors for other unsaturated fatty acids that are key for metabolic regulation and cell membrane function and are essential to life for all mammals. Pr...

dietary notifications have been introduced recently for alzheimer disease (ad). in iranian old medical manuscripts, there are some nutritional recommendations related to nesyan (ad equivalent). the aim of this article was to compare dietary recommendations of iranian traditional medicine (itm) with novel medical outcomes.1) searching for dietary recommendations and abstinences described in itm ...

Fatty acids, which are the essential nutrients for humans, are an important source of energy and an essential component of cell membranes. They also function as signal transduction molecules in a range of biological phenomena. Recently, an increasing number of physiologic and pharmacologic reports on fatty acids have improved our understanding of the association of fatty acids with certain dise...

the lowest lipid levels of capoeta erhani observed in winter and vice versa in summer. the fatty acid composition of the fillets was significantly different among seasons ( p <0.05), while the variations among sexes were not at the same degrees ( p >0.05). the ratios of the unsaturated fatty acids (ufas) were higher than half of the total fatty acids among all seasons. the level of pufa was hig...

As has been shown in previous researches the fatty acids in human blood exist, as glycerides, cholesterol esters, soaps, or as free acids; they are also represented as a radical of lecithin and the phosphatide groups. Their content varies in continued starvation, fat absorption, anesthesia, certain pathological conditions, et’c., as recently reported and confirmed in a series of papers by B1oor...

When hydroformylation of unsaturated fatty materials is done with rhodiu~-tripheny:lphosphine (or phosphite) catalysts, a number of advantages become apparent compared to cobalt carbonyl-catalyzed reactions. With rhodium, the reaction can be carried out (a) at pressures as low as 200 psi, (b) at each double bond location in a polyunsaturated fatty acid, and (c) in high yield and conversion. Sol...

Reports from this laboratory have described the existence of two different pathways for the biosynthesis of long chain monounsaturated fatty acids by microorganisms. In yeast, oleic and palmitoleic acids are formed oxidatively from the corresponding saturated acids by processes requiring molecular oxygen and TPNH (1). The same conversions have been demonstrated in AWycobacterium phlei (2), in t...

1. The fatty acid composition of the ole-i and ole-i petite mutants of Saccharomyces cerevisiae was manipulated by growing the organism in the presence of defined supplements ofTween 80 or by allowing cells that had first been grown in the presence ofTween 80 to deplete their unsaturated fatty acids by subsequent growth in the absence of Tween 80. 2. The transition temperature ofArrhenius plots...