The diets of laboratory rats were isotopically and nutritionally manipulated using purified C3 and/or C4 macronutrients to investigate the routing of dietary carbon to bone collagen biosynthesis. Diets were formulated with purified proteins, carbohydrates and lipids of defined composition and natural abundance stable isotope ratios. Bulk protein and constituent amino acid delta(13)C values dete...

Amino acids are organic compounds included in the protein structure. They contain functional groups of an amine  and a carboxyl group. Approximately 500 naturally occurring amino known, although only 20 found human genetic code. play essential role body. participate formation all kinds tissues, production hormones, enzymes, antibodies, proper functioning nervous system, restoration cells, ...

1. Free amino acids were determined in the plasma and in the muscle tissue of 14 patients with chronic uraemia; eight were not on dialysis and six were having regular peritoneal dialysis. The concentration of each amino acid in muscle water was calculated with the chloride method. 2. In both groups of patients there were low intracellular concentrations of threonine, valine, tyrosine and carnos...

abstract        background and objective: measurement of amino acids is an important tool for metabolic studies and evaluation of patients’ clinical condition. the aim of this study was to analyze the plasma amino acids using reverse phase high performance liquid chromatography techniques (rp-hplc) with pre-column derivatization by o-phthalaldehyde (opa) in combination with 3- mercaptopropionic...

There has been an evolution in the appreciation of the functional roles that amino acids play in neonatal nutrition over the last 30 years. Up to the early 1960s primary interest was in the identification of those amino acids that had to be supplied in the diet in order to maintain growth and positive nitrogen balance (Table 1). Most of the experiments that were performed to identify these amin...

The protein intake during the Palaeolithic period has been estimated to be two and a half fold greater than current recommendations. Hydrogen, nitrogen, oxygen and carbon atoms are important components of essential and nonessential amino acids which are components of proteins. These simple molecules play an important role in the human body. The 22 known amino acids, essential and nonessential, ...

In this study, solid state fermentation (SSF) was carried out to produce single cell protein (SCP) from sugarcane bagasse using Saccharomyces cerevisiae. The SSF experiment were performed in a tray bioreactor. The influence of several parameters including extraction buffer, initial moisture content of substrate, fermentation time, relative humidity in bioreactor, the bioreactor temperature and ...