addition of potassium cyanide to a mixture of schiff base and lithium perchlorate afforded a-aminonitriles in high yields. addition of potassium cyanide to a methanolic solution of schiff base and phosphoric acid afforded a-aminonitriles. when the reaction mixture was refluxed it gave a-amino acids in high yields.

campylobacter is known to be one of the most common causes of human intestinal disorders. since poultry are known to be the main reservoirs for this pathogen, decreasing this bacterium in intestinal tract could be beneficial in reducing contamination of poultry products. the effects of probiotic (primalac®), medicinal plant (sangrovit®) and organic acid (selko-ph®) as broiler feed additives on ...

world consumption of butter has declined over the last decades partly due to its physical limitations and partly due to its poor nutritionalproperties. in this study, the effect of hazelnut addition on the properties of butter, was evaluated taking into account that hazelnut is a source of unsaturated fatty acids and antioxidants. powdered hazelnut was added to butter at 3 levels (10, 20 and 30...

dog rose (rosa canina l.) is a wild native species in iran, with a significant genetic diversity. the purpose of this research was to study quantitative and qualitative characteristics of saturated and unsaturated fatty acids dog rose ecotypes in five habitats of isfahan province in 2014-2015. oil was extracted from seeds by using soxhlet apparatus; the fatty acid composition of oil was charact...

background: organic acids refer to a family of compounds that are intermediates in a variety of metabolic pathways. many organic acids are present in urine from clinically normal individuals. elevated levels of urine organic acids cause to the organic acidurias, disorders in which some metabolic pathways in organic acid metabolism are blocked. the present work identified major and minor urinary...

background and objectives: probiotic bacteria are able to absorb fatty acids present in the culture medium and convert them into intracellular fatty acids, which may affect the physicochemical properties of probiotics. subsequently, changing the composition of cellular fatty acids of probiotics improves the electron acceptance capacity of these microorganisms, and results in an increased adhesi...

Naphthenic acids and TAN are one of the ever-increasing crucial problems in oil, shale oil and sand oil industry and also environment protection. Furtherer, they increases the corrosion of some parts of a refinery and transport pipelines and also can create nanoemulsions and make complicated the refining process especially in desalters. To prevent these problems it is important to first obtain ...

introduction regular intake of n-3 fatty acids of marine origin have desirable effects on serum lipoproteins and reduce coronary vascular disease (cvd). n-3 fatty acid supplementation decreased serum triglyceride concentrations in studies in which most of the subjects were male. the effects of n-3 fatty acids supplementation in fat women especially postmenopausal fat women have received little ...

two dimensional thin layer chromatography on polyamide sheets is a useful method for identification of pth-amino acids which have very close rf-values. the solvent systems described here are particularly effective and have an edge over other solvent systems used for the separation of pth-amino acids. the solvent systems provide a clear separation of all pth-amono acids except lle / leu in a rel...