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Título

Effect of pure and mixed cultures of the main wine yeast species on grape must fermentations

AutorAndorrà, Imma; Berradre, María; Rozès, Nicolás; Guillamón, José Manuel ; Esteve Zarzoso, Braulio
Palabras claveSaccharomyces
Candida
Hanseniaspora
Wine fermentation
Volatile compounds
Amino acids
Fecha de publicación11-abr-2010
EditorSpringer
CitaciónEuropean Food Research and Technology 231 (2): 215-224 (2010)
ResumenMixed inoculation of non-Saccharomyces yeasts and S. cerevisiae is of interest for the wine industry for technological and sensory reasons. We have analysed how mixed inocula of the main non-Saccharomyces yeasts and S. cerevisiae affect fermentation performance, nitrogen consumption and volatile compound production in a natural Macabeo grape must. Sterile must was fermented in triplicates and under the following six conditions: three pure cultures of S. cerevisiae, Hanseniaspora uvarum and Candida zemplinina and the mixtures of H. uvarum:S. cerevisiae (90:10), C. zemplinina:S. cerevisiae (90:10) and H. uvarum:C. zemplinina:S. cerevisiae (45:45:10). The presence of non-Saccharomyces yeasts slowed down the fermentations and produced higher levels of glycerol and acetic acid. Only the pure H. uvarum fermentations were unable to finish. Mixed fermentations consumed more of the available amino acids and were more complex and thus better able to synthesise volatile compounds. However, the amount of acetic acid was well above the admissible levels and compromises the immediate application of mixed cultures.
Descripción10 pages, 2 figures, 3 tables.-- Printed version published June 2010.-- The original publication is available at www.springerlink.com
Versión del editorhttp://dx.doi.org/10.1007/s00217-010-1272-0
URIhttp://hdl.handle.net/10261/24351
DOI10.1007/s00217-010-1272-0
ISSN1438-2377
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