Evaluation of the major congeners produced by various Lallemand distilling yeast

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Lallemand Inc. is a Canadian company, founded at the end of the 19th century, in Montréal. Lallemand biofuels and distilled spirits (LBDS) provides yeast and bacteria worldwide for diverse applications. Their expertise is in ethanol production using various strains of yeast, whether it be for biofuels or for spirits. The proposed project consists in obtaining better understanding of the influence of fermentation parameters on congener profiles and in determining variability in congener profiles for various yeasts. Congeners are molecules that are produced by yeast during fermentation and which can contribute to the flavor profile of the final spirit. LBDS would like to gather this data in order to compare with organoleptic properties and eventually to better recommend their products to clients in the distilled spirits industry.