Anewmethod for simultaneous determination of underivatized biogenic amines based on the separation by cation-exchange chromatography
and suppressed conductivity coupled with mass spectrometry detection has been developed. The method has been applied to the analysis of
cadaverine, putrescine, histamine, agmatine, phenethylamine and spermidine in processed meat products. The amines were extracted from
muscle tissue with methanesulfonic acid without any additional derivative step or sample clean-up. Biogenic amines were separated by the
IonPac CS17 column, a cation-exchange column used with gradient elution, and detection was done by suppressed conductivity and mass
spectrometry. Tyramine was simultaneously analysed by using a spectrophotometer (275 nm) before the suppressed conductivity detection.
Linearity of response was obtained in the range 0.25–25 gmL−1. The detection limits ranged from 23 gL−1 for putrescine to 155 gL−1
for spermidine (suppressed conductivity) and from 9 gL−1 for agmatine to 34 gL−1 for spermidine (MS). Average recoveries from meat
samples ranged from 85 to 97% and coefficients of variation ranged from 4.5 to 9.7%. The analysis of biogenic amines in fresh and processed
meats (dry-cured, cooked and fermented products) can be used as a quality marker of raw material and for studying the relationship between
their changes and the fermentation process involved in dry sausage ripening.
© 2005 Elsevier B.V. All rights reserved.