Taurine is converted to isethionic acid by van Slyke method.
#Determination of taurine in food free#
Food preparation methods that minimized water loss, such as baking or frying, had higher rates of taurine retention. An electrophoretic method (on-line coupled capillary isotachophoresis and capillary zone electrophoresis) with conductometric detection for the determination of free taurine in selected food and feed is described. When an ingredient was constantly surrounded by water during the cooking process, such as in boiling or basting, more taurine was lost. First-order reaction kinetics were observed for taurine losses in milk and buffered solution.
The degradation of taurine in taurine-fortified milk and in a buffered taurine and lactose solution (pH 6.7) was determined by heating at 80, 100, and 120☌. The amount of taurine that remained in a feed ingredient after cooking depended upon the method of food preparation. Taurine in milk ranged from 2.4 to 12.0 mg/L. Plant products contained either low or undetectable amounts of taurine. Taurine & CaffeineTaurine or 2-amino ethane sulfonic acid is a metabolic filtered and degassed in sonicator before use in HPLCproduct of sulphur containing amino acid mainly (McConn, 2012).biosynthesized from cysteine in liver and found up to 0.1of total human body weight. Animal muscle tissue, particularly marine, contained high taurine concentrations. Foods were selected based on their use in commercial and home-prepared diets.
This study reports the taurine content of both common and alternative feed ingredients, and compares taurine loss as a result of different methods of food preparation. Methods: The sample was dissolved in 0.01 mol/L hydrochloric acid solution and precipitated with 106 g/l potassium ferrocyanide solution and 219 g/l zinc acetate. PMID: 10684129 Abstract Taurine in food was separated by HPLC as its phthalaldehyde-ethanethiol derivative on mu-Bondapak C18 reverse column and measured at 330 nm. There is very little information on the taurine content of ingredients used in home-prepared diets for dogs and cats, and foods fed to wild animals in captivity. Objective: To establish an method using amino acid analyzer for the determination of taurine in infant milk powder. The aim of this study was to determine the taurine content in a variety of animal feeds.
0 kommentar(er)
