Methode d'analyse quantitative par spectrometrie Raman-laser associee aux fibres optiques pour le suivi d'une fermentation alcooliqueA quantitative laser Raman spectrometric method with fibre optics for monitoring an alcoholic fermentation |
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| Authors: | Catherine Gomy Michel Jouan Nguyen Quy Dao |
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| Affiliation: | Laboratoire de Chimie et Physicochimie Minérales, UA 441 du CNRS, Ecole Centrale des Arts et Manufactures de Paris, Grande Voie des Vignes, 92295 Chatenay Malabry Cedex France |
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| Abstract: | Laser Raman spectrometry with a fibre-optic system is used to monitor the concentrations of ethanol, glucose and fructose at various stages of an alcoholic fermentation process. For evaluation of the data, cross-correlation and multivariate least-squares procedures are compared; the latter gives the best results. Ethanol, glucose and fructose can be determined remotely with a precision of ca. 10 g l?1 (10–15%). |
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