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Título: | Role of specific components from commercial inactive dry yeast winemaking preparations on the growth of wine lactic acid bacteria |
Autor: | Andújar-Ortiz, Inmaculada CSIC; Pozo-Bayón, Mª Ángeles CSIC ORCID ; García-Ruiz, Almudena CSIC ORCID; Moreno-Arribas, M. Victoria CSIC ORCID | Fecha de publicación: | 2010 | Editor: | American Chemical Society | Citación: | Journal of Agricultural and Food Chemistry 58: 8392-8399 (2010) | Resumen: | The role of specific components from inactive dry yeast preparations widely used in winemaking on the growth of three representative wine lactic acid bacteria (Oenococcus oeni, Lactobacillus hilgardii and Pediococcus pentosaceus) has been studied. A pressure liquid extraction technique using solvents of different polarity was employed to obtain extracts with different chemical composition from the inactive dry yeast preparations. Each of the extracts was assayed against the three lactic acid bacteria. Important differences in the effect of the extracts on the growth of the bacteria were observed, which depended on the solvent employed during the extraction, on the type of commercial preparations and on the lactic acid bacteria species. The extracts that exhibited the most different activity were chemically characterized in amino acids, free monosaccharides, monosaccharides from polysaccharides, fatty acids and volatile compounds. In general, specific amino acids and monosaccharides were related to a stimulating effect whereas fatty acid composition and likely some volatile compounds seemed to show an inhibitory effect on the growth of the lactic acid bacteria. These results may provide novel and useful information in trying to obtain better and more specific formulations of winemaking inactive dry yeast preparations © 2010 American Chemical Society. | URI: | http://hdl.handle.net/10261/50128 | DOI: | 10.1021/jf101132t | Identificadores: | doi: 10.1021/jf101132t issn: 0021-8561 |
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