Fermentative capabilities and volatile compounds produced by Kloeckera/Hanseniaspora and Saccharomyces yeast strains in pure and mixed cultures during Agave tequilana juice fermentation
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ID: 117543
2015
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Abstract
The fermentative and aromatic capabilities of Kloeckera africana/Hanseniaspora vineae K1, K. apiculata/H. uvarum K2, and Saccharomyces cerevisiae S1 and S2 were studied in pure and mixed culture fermentations using Agave tequila juice as the culture medium. In pure and mixed cultures, Kloeckera/Hanseniaspora strains showed limited growth and sugar consumption, as well as low ethanol yield and productivity, compared to S. cerevisiae, which yielded more biomass, ethanol and viable cell concentrations. In pure and mixed cultures, S. cerevisiae presented a similar behaviour reaching high biomass production, completely consuming the sugar, leading to high ethanol production. Furthermore, the presence of S. cerevisiae strains in the mixed cultures promoted the production of higher alcohols, acetaldehyde and ethyl esters, whereas Kloeckera/Hanseniaspora strains stimulated the production of ethyl acetate and 2-phenyl ethyl acetate compounds.
| Reference Key |
gonzález-robles2015antoniefermentative
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| Authors | Ivonne Wendolyne González-Robles;Mirna Estarrón-Espinosa;Dulce María Díaz-Montaño;Ivonne Wendolyne González-Robles;Mirna Estarrón-Espinosa;Dulce María Díaz-Montaño; |
| Journal | antonie van leeuwenhoek |
| Year | 2015 |
| DOI |
doi:10.1007/s10482-015-0506-3
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