<abstract xmlns="http://www.w3.org/1999/xhtml"><p> This paper describes a method for the extraction, separation and determination of amino acids, both free and protein-bound, which are present in tobacco. The introduction of the lyophilization process and the ''cold finger'' technique made it possible to obtain a good purification of extracts which, unlike the previous methods, have been preserved for a long time. The combined use of column chromatography and mass spectrometry enabled all amino acids present to be detected. The analyses carried out on different tobacco varieties showed certain quantitative and qualitative differences in the composition of amino acids and only small quantitative variations in the composition of protein-bound amino acids</p></abstract>

This paper describes a method for the extraction, separation and determination of amino acids, both free and protein-bound, which are present in tobacco. The introduction of the lyophilization process and the ''cold finger'' technique made it possible to obtain a good purification of extracts which, unlike the previous methods, have been preserved for a long time. The combined use of column chromatography and mass spectrometry enabled all amino acids present to be detected. The analyses carried out on different tobacco varieties showed certain quantitative and qualitative differences in the composition of amino acids and only small quantitative variations in the composition of protein-bound amino acids

Quantitative Determination of Free and Protein-Bound Amino Acids of Tobacco

Monopoli di Stato, Laboratorio Chimico Centrale, Rome, Italy

Contributions to Tobacco & Nicotine Research

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Quantitative Determination of Free and Protein-Bound Amino Acids of Tobacco"}

This paper describes a method for the extraction, separation and determination of amino acids, both free and protein-bound, which are present in tobacco. The...

Quantitative Determination of Free and Protein-Bound Amino Acids of Tobacco

Publié en ligne: 26 juil. 2014

Pages: 222 - 227

Reçu: 09 juil. 1973

DOI: https://doi.org/10.2478/cttr-2013-0334

© Beiträge zur Tabakforschung International

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.