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Identification of Saccharomyces cerevisiae strains for alcoholic fermentation by discriminant factorial analysis on electronic nose signals Electron. J. Biotechnol.
Calderon-Santoyo,Montserrat; Chalier,Pascale; Chevalier-Lucia,Dominique; Ghommidh,Charles; Ragazzo-Sanchez,Juan Arturo.
An electronic nose (E-nose) coupled to gas chromatography was tested to monitor alcoholic fermentation by Saccharomyces cerevisiae ICV-K1 and Saccharomyces cerevisiae T306, two strains well-known for their use in oenology. The biomass and ethanol concentrations and conductance changes were measured during cultivations and allowed to observe the standard growth phases for both yeast strains. The two strains were characterized by a very similar tendency in biomass or ethanol production during the fermentation. E-nose was able to establish a kinetic of the production of aroma compounds production and which was then easy to associate with the fermentation phases. Principal Component Analysis (PCA) showed that the data collected by E-nose during the...
Tipo: Journal article Palavras-chave: Alcoholic fermentation; Discrimination; Electronic nose; Gas sensor; Yeasts.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000400008
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