Comportamiento fermentativo de la levadura Candida stellata en diferentes condiciones de aireación

Waldir D. Estela-Escalante, Gloria A. Cosco-Salguero, Elena L. Quillama-Polo, Mojmír Rychtera

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

Resumen

The influence of aeration on the fermentative activity of Candida stellata RIVE 3-16-1 was studied. The strain was cultured either in Erlenmeyer flasks or a bioreactor containing sterilized and aroma-removed apple juice. Cultures in Erlenmeyer flasks were done under shaken or static condition, whereas in the bioreactor, a constant air flow regime was kept. Chemical compounds produced during fermentation were determined by GC and HPLC. The agitation of Erlenmeyer flasks increased the production of total higher alcohols as compared to static culture and enhanced dramatically the ethyl acetate production. Meanwhile, the production of acetic acid and glycerol were higher under static culture. Bioreactor fermentation at constant air flow was important to visualize the effect of oxygen on the production of compounds and its impact in the quality of alcoholic beverages. It is reported a specific growth rate of 0.13 h-1. Aeration promoted the cell growth affecting the ethanol yield. At the end of culture, malic acid naturally present in apple juice and the ethanol produced were consumed after sugar depletion. Moreover, the acetic acid produced at the end of the fermentation served as carbon source too. The best results in terms of acceptability of the fermented beverages were obtained when cultivated statically.

Título traducido de la contribuciónFermentative behavior of the Candida stellata yeast under different aeration conditions
Idioma originalEspañol
Páginas (desde-hasta)1211-1217
Número de páginas7
PublicaciónBiotecnologia Aplicada
Volumen35
N.º1
EstadoPublicada - 1 ene. 2018
Publicado de forma externa

Nota bibliográfica

Publisher Copyright:
© 2018 Elfos Scientiae. All rights reserved.

Palabras clave

  • Alcoholic fermentation
  • Candida stellata
  • Ethyl acetate
  • Higher alcohols

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