Optimisation of wort volatile analysis by headspace solid-phase microextraction in combination with gas chromatography and mass spectrometry

J Chromatogr A. 2008 Feb 1;1179(2):75-80. doi: 10.1016/j.chroma.2007.11.103. Epub 2007 Dec 5.

Abstract

The aim of this study was to create a simple, solventless technique without derivatisation in order to analyze a broad range of volatiles in beer wort. A method was developed using headspace solid-phase microextraction coupled with gas chromatography and mass spectrometry. The procedure was optimised by selection of the appropriate fibre and optimisation of extraction temperature, extraction time, and salting-out. The detection limits were well below the actual wort concentrations of the selected volatiles, ranging from 12 ng/l for linalool to 0.53 microg/l for furfural. Moreover, the procedure showed a good linearity and was applied to the analysis of wort samples taken from a wort boiling process in an industrial brewery.

Publication types

  • Evaluation Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aldehydes / analysis
  • Beer / analysis*
  • Flavoring Agents / analysis
  • Gas Chromatography-Mass Spectrometry / methods*
  • Solid Phase Microextraction / instrumentation
  • Solid Phase Microextraction / methods*
  • Temperature
  • Volatilization

Substances

  • Aldehydes
  • Flavoring Agents