Royal jelly (RJ) is generally regarded as the major reason of the significant morphological and functional differences between queen and worker bees. The unique and chemically most interesting feature of RJ is its fatty acids. RJ fatty acids are short-chained, 8-10 carbon free acids that are usually either hydroxy fatty acids or dicarboxylic acids. The major fatty acid in RJ is 10-hydroxy-2-dec...

With the development of tuberculosis infection in mice, free cholesterol in the lungs was converted into ester with fatty acids. The esterification occurred in parallel with the increase in amounts of phospholipids and of free fatty acids in the lungs and appeared to be associated with the bacillary growth in the tissue. The fatty acids to be incorporated into the ester were mainly palmitic, li...

The purpose of this study was to determine whether lipoprotein-bound free fatty acid could be utilized by isolated mammalian cells. Ehrlich ascites tumor cells were incubated in vitro with radioactive free fatty acids that were bound to human plasma lipoproteins. Under these conditions, lipoprotein-bound free fatty acids were readily taken up by the cells. After 2 min of incubation with free fa...

Royal jelly (RJ) is generally regarded as the major reason of the significant morphological and functional differences between queen and worker bees. The unique and chemically most interesting feature of RJ is its fatty acids. RJ fatty acids are short-chained, 8-10 carbon free acids that are usually either hydroxy fatty acids or dicarboxylic acids. The major fatty acid in RJ is 10-hydroxy-2-dec...

The uptake of free fatty acids has previously been shown to affect the capping of lymphocytes, and there is evidence that different types of fatty acids may partition into separate lipid domains in cell surface membranes. In studies of gel-filtered human platelets, we found that cis-unsaturated fatty acids (1-35 microM) inhibited platelet shape change, aggregation, and secretion of 5-hydroxytry...

When glycerol-requiring auxotrophs of Bacillus subtilis are deprived of glycerol, the synthesis of fatty acids continues at an apparent rate of 20 to 50% that of supplemented cultures. The newly synthesized fatty acids are not incorporated into phospholipid and accumulate as free fatty acids. These molecules undergo a much more rapid turnover than phospholipid fatty acids, and the rate of turno...

Walnut (Juglans regia L.) were evaluated for some physical properties and chemical composition. Ripe fruits were determined for moisture (2.71 %), crude protein (14.6 %) crude fibre (1.8%) ash (1.57%), crude energy (576Cal) ether soluble extract (24.71%), nut (10.5g) and kernel (5.09g) veights. Relative density, refractive index...

Are the different fatty acids mobilized into plasma in proportion to their concentrations in adipose tissue triglyceride? To answer this question, we fed weaning rabbits a special diet to label the fat stores with a variety of dietary fatty acids. The release of adipose tissue fatty acids into the plasma was then induced by ACTH-stimulated lipolysis. The compositions of the resulting plasma fre...

approved ^ x ;^ ■«= 1 «B (Mtj^or professor) The free fatty acids of Cheddar cheese are important components in the over-all flavor and aroma of the cheese. Although the more volatile fatty acids probably contribute most, there is reason to believe that the higher fatty acids may contribute, to some extent, in imparting typical flavor characteristics. Before the advent of gas-liquid chromatograp...

changes in the fatty acid content, during frozen storage at -24°c of caspian kutum (rutilus frisii kutum), golden grey mullet (liza aurata), common carp (caprinus carpio), pike perch (sander lucioperca) and common kilka (clupeonella cultiventris caspia), caught from south caspian sea were studied in the present work. changes in saturated fatty acids (sfas), monounsaturated fatty acids (mufas), ...