Organic acids have been for long added into piglet feeds to improve gastric health and post-weaning performance and, more recently, to replace antibiotic growth promoters in these functions. Organic acids lower the buffering capacity of the feed, compensate for the poor gastric acidification and endogenous lactic acid production after weaning, and reduce the numbers of pathogens in the gastro-i...

To check the influence of the conservation procedure in the chemical composition of chanterelle mushroom, phenolic compounds and organic acids of samples preserved under four different conditions (drying, freezing, conservation in olive oil and in vinegar) were determined. Phenolics and organic acids were analyzed by HPLC-DAD and HPLC-UV, respectively. The results showed that chanterelle is cha...

The simple titration method for the determination of organic acids in urine, described by Van Slyke and Palmer (I), has in many circumstances proved satisfactory. A more extended employment of the method to determine organic acids in pathological urines has brought to light limitations and sources of error which need consideration. The organic acids present in urine, both free and as salts, are...

The simple titration method for the determination of organic acids in urine, described by Van Slyke and Palmer (I), has in many circumstances proved satisfactory. A more extended employment of the method to determine organic acids in pathological urines has brought to light limitations and sources of error which need consideration. The organic acids present in urine, both free and as salts, are...

BACKGROUND The objective of this work was to study the vitamins B1, B2, B6 and C stability in a pediatric formulation containing high amounts of calcium in the presence of organic phosphate, amino acids, glucose, sodium chloride, magnesium sulfate, pediatric vitamins and trace elements under different conditions using developed and validated analytical methods. METHODS The study was carried o...

We describe a method for adsorbing organic acids from amniotic fluid and urine specimens onto a column of silica gel before analysis by gas chromatography and by combined gas chromatography/mass spectrometry. Analytical recoveries of individual organic acids by our adsorption method compare favorably with those obtained by a more laborious manual extraction with ethyl acetate. Results for speci...

Acylcarnitines are formed by esterification between fatty acids CoA or organic acids CoA molecules and carnitine. In various fatty acids oxidation defects and organic acidurias, there is increased concentration of corresponding acylcarnitines. Abnormalities in specific acylcarnitines are used in the diagnosis of fatty acids oxidation defects and organic acidurias. Most commonly used method for ...