caa a22 4500 463186354 CHVBK 20180406164854.0 cr unu---uuuuu 170326e20070901xx s 000 0 eng 10.1007/s00726-006-0449-0 doi (NATIONALLICENCE)springer-10.1007/s00726-006-0449-0 Rapid analysis of taurine in energy drinks using amino acid analyzer and Fourier transform infrared (FTIR) spectroscopy as basis for toxicological evaluation [Elektronische Daten] [S. Triebel, C. Sproll, H. Reusch, R. Godelmann, D. W. Lachenmeier] Summary.: So-called energy drinks with very high amounts of taurine (up to 4000 mg/l are usually granted by certificates of exemption) are increasingly offered on the market. To control the currently valid maximum limits of taurine in energy drinks, a simple and rapid analytical method is required to use it routinely in food monitoring. In this article, we describe a fast and efficient analytical method (FTIR-spectroscopy) that is able to reliably characterize and quantify taurine in energy drinks. The determination of taurine in energy drinks by FTIR was compared with amino acid analyzer (ion chromatography with ninhydrin-postcolumn derivatization). During analysis of 80 energy drinks, a median concentration of 3180 mg/l was found in alcohol-free products, 314 mg/l in energy drinks with spirits, 151 mg/l in beer-containing drinks and 305 mg/l in beverages with wine. Risk analysis of these products is difficult due to the lack of valid toxicological information about taurine and its interferences with other ingredients of energy drinks (for example caffeine and alcohol). So far, the high taurine concentrations of energy drinks in comparison to the rest of the diet are scientifically doubtful, as the advertised physiological effects and the value of supplemented taurine are unproven. Springer-Verlag, 2006 Keywords: Taurine - Amino acid analyzer - FTIR-Spectroscopy - Energy drinks nationallicence Triebel S. Chemisches und Veterinäruntersuchungsamt (CVUA) Karlsruhe, Karlsruhe, Germany aut Sproll C. Chemisches und Veterinäruntersuchungsamt (CVUA) Karlsruhe, Karlsruhe, Germany aut Reusch H. Chemisches und Veterinäruntersuchungsamt (CVUA) Karlsruhe, Karlsruhe, Germany aut Godelmann R. Chemisches und Veterinäruntersuchungsamt (CVUA) Karlsruhe, Karlsruhe, Germany aut Lachenmeier D. W. Chemisches und Veterinäruntersuchungsamt (CVUA) Karlsruhe, Karlsruhe, Germany aut Amino Acids Springer-Verlag 33/3(2007-09-01), 451-457 0939-4451 33:3<451 2007 33 726 https://doi.org/10.1007/s00726-006-0449-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00726-006-0449-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Triebel S. Chemisches und Veterinäruntersuchungsamt (CVUA) Karlsruhe, Karlsruhe, Germany aut NATIONALLICENCE 700 1- Sproll C. Chemisches und Veterinäruntersuchungsamt (CVUA) Karlsruhe, Karlsruhe, Germany aut NATIONALLICENCE 700 1- Reusch H. Chemisches und Veterinäruntersuchungsamt (CVUA) Karlsruhe, Karlsruhe, Germany aut NATIONALLICENCE 700 1- Godelmann R. Chemisches und Veterinäruntersuchungsamt (CVUA) Karlsruhe, Karlsruhe, Germany aut NATIONALLICENCE 700 1- Lachenmeier D. W. Chemisches und Veterinäruntersuchungsamt (CVUA) Karlsruhe, Karlsruhe, Germany aut NATIONALLICENCE 773 0- Amino Acids Springer-Verlag 33/3(2007-09-01), 451-457 0939-4451 33:3<451 2007 33 726 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer