Nachweis und Bestimmung von 2-Aminoacetophenon in vergorenen Modelllösungen

Authors

  • A. Rapp
  • G. Versini
  • L. Engel

DOI:

https://doi.org/10.5073/vitis.1995.34.193-194

Keywords:

2-aminoacetophenone, fermentation

Abstract

Research Note

Durch zweidimensionale Gaschromatographie und unter Verwendung eines spezifischen Stickstoffdetektors (NPD) kann 2-Aminoacetophenon noch bis zu Gehalten von 20 ng/1 quantitativ bestimmt werden. In Weinen wurden bisher Gehalte von 20 ng/1 bis 2500 ng/1 nachgewiesen. In Gärversuchen mit synthetischen Nährlösungen wurde eine von der N-Quelle und der Zusammensetzung des Gärsubstrates abhängige Bildung von 2-Aminoacetophenon festgestellt; mit Tryptophan als einziger N-Quelle wurden die größten Mengen 2-Aminoacetophenon gebildet.  

Determination of 2-aminoacetophenone in fermented model wine solutions

Using twodimensional GC in combination with a nitrogen-specific detection, 2-aminoaceto-phenone can be determined quantitatively up to 20 ng/l. In wines concentrations between 20 and 2,500 ng/l could be found. In fermentation experiments with synthetic media a significant influence of the medium composition, especially the nitrogen source, is ascertained. In the case of tryptophane as N source the highest amount of 2-aminoacetophenone is synthesized.

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Published

2015-08-14

Issue

Vol. 34 No. 3 (1995): Vitis

Section

Article

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