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Polysaccharide characterization of commercial dry yeast preparations and their effect on white and red wine composition

AuthorsDel Barrio-Galán, R.; Pérez-Magariño, S.; Ortega-Heras, M.; Guadalupe, Zenaida ; Ayestarán, Belén
Issue Date2012
PublisherAcademic Press
CitationFood Science and Technology 48: 215- 223 (2012)
AbstractThe aim was to characterize several commercial dry yeast derivative preparations and to study their effect on different quality parameters of white and red wines. The monosaccharide and polysaccharide contents of these preparations were also evaluated. The purity and composition of the commercial preparations studied were very heterogeneous, as were the effects that they can produce in wines. All the yeast derivative preparations studied increased the content of neutral polysaccharides, although those with greater mannose content reduced the absorbance values at 420 nm and acidity in white wines. In red wines, yeast derivatives reduced green tannins increasing the softness on the palate, and managed to stabilize the color, especially those yeast derivatives that release higher neutral polysaccharides. © 2012 Elsevier Ltd.
Identifiersdoi: 10.1016/j.lwt.2012.03.016
issn: 0023-6438
Appears in Collections:(ICVV) Artículos
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