Effect of the addition of inert cellulose substrates to grape must on Saccharomyces cerevisiae diversity and the evolution of alcoholic fermentation.

  1. López, R. 1
  2. Epifanio, S. 1
  3. Garijo, P. 1
  4. Santamaría, P. 1
  5. Gutiérrez, A.R. 2
  1. 1 Servicio de Investigación y Desarrollo Tecnológico Agroalimentario de La Rioja
    info

    Servicio de Investigación y Desarrollo Tecnológico Agroalimentario de La Rioja

    Logroño, España

  2. 2 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

Revista:
Letters in Applied Microbiology.

ISSN: 0266-8254

Año de publicación: 2006

Volumen: 42

Número: 5

Páginas: 465-470

Tipo: Artículo

DOI: 10.1111/J.1472-765X.2006.01877.X PMID: 16620204 SCOPUS: 2-s2.0-33645872119 WoS: WOS:000236738500006 GOOGLE SCHOLAR

Otras publicaciones en: Letters in Applied Microbiology.

Resumen

Aims: To study the addition of cellulose-based adjuvant as a resource to offset the negative effects produced by grape juice clarification during alcoholic fermentations. Methods and Results: The effect of the addition of two kinds of inert cellulose substrates in white wine vinification was investigated in two different musts. In one of these musts, stuck fermentations were detected. One of the types of cellulose examined had a fining effect, which caused a decrease in the number of viable yeasts in the medium and altered the distribution and frequency of the clones, which performed the fermentation. The other cellulose substrate made the medium cloudier but did not alter the distribution of yeasts in comparison with the control. Conclusions: The behaviour of the inert cellulose substrates on vinification depends on its physical characteristics and its capacity for making the must cloudy. Significance and Impact of the Study: The addition of inert cellulose substrates in white wine vinification improves the fermentation process and the quality of wines obtained. This effect is more noticeable in difficult fermentations. One variety of cellulose showed an inhibitory effect on Torulaspora delbrueckii yeasts. © 2006 The Society for Applied Microbiology.