DEVELOPMENT OF AN ONLINE METHOD FOR THE MONITORING OF VICINAL DIKETONES AND THEIR PRECURSORS IN BEER FERMENTATION

Authors
MATHIS C PONS MN ENGASSER JM LENOEL M
Citation
C. Mathis et al., DEVELOPMENT OF AN ONLINE METHOD FOR THE MONITORING OF VICINAL DIKETONES AND THEIR PRECURSORS IN BEER FERMENTATION, Analytica chimica acta, 279(1), 1993, pp. 59-66
Citations number
9
Categorie Soggetti
Chemistry Analytical
Journal title
Analytica chimica acta → ACNP
ISSN journal
00032670
Volume
279
Issue
1
Year of publication
1993
Pages
59 - 66
Database
ISI
SICI code
0003-2670(1993)279:1<59:DOAOMF>2.0.ZU;2-5
Abstract
Methods for on-line monitoring of vicinal diketones and their precurso rs during beer fermentation have been developed. Vicinal diketones can be directly monitored using a gas membrane device connected to a GC-E CD system. Liquid phase heat conversion of their precursors into diket ones, after automatic liquid sampling, proved to be the most satisfact ory technique for the monitoring of alpha-acetolactate and acetohydrox ybutyrate. The methods were successfully tested on beer fermentation.