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DIGITAL.CSIC
Article . 2007 . Peer-reviewed
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Características del crecimiento de levaduras de aceitunas de mesa a bajas temperaturas

Authors: Durán Quintana, M. Carmen; García García, Pedro; Garrido Fernández, A.;

Características del crecimiento de levaduras de aceitunas de mesa a bajas temperaturas

Abstract

Se ha estudiado el comportamiento de Picchia anomala, Picchia membranaefaciens, Pichia minuta, Saccharomyces cerevisiae, Candida diddensii, Candida famata y Debaryomyces Hansenii a bajas temperaturas. La respuesta, crecimiento relativo determinado a diferentes intervalos de tiempo, se ha estudiado mediante el modelo lineal general (GLM) con medidas repetidas, prestándose especial atención a las interacciones. Las levaduras más resistentes en medio YMGP fueron P. anomala, C. diddensii, y Deb. hansenii que crecieron a 7ºC incluso al 8% de sal. En salmueras, además de los efectos principales, fueron también significativas las interacciones, concentración de sal-especie de levadura, tiempo-pH, tiempo-especie de levadura, tiempo-sal-pH y tiempo-sal-especie de levadura. P. membranaefaciens mostró mayor tolerancia a la sal en la salmuera que en YMGP. S. cerevisiae, P. membranaefaciens y C. famata se inhibieron a 7ºC tanto a pH 3,5 como 4, con independencia de los niveles de sal. Combinaciones adecuadas de pH y sal pueden inhibir el crecimiento a 7ºC.

The behaviour of Picchia anomala, Picchia membranaefaciens, Pichia minuta, Saccharomyces cerevisiae, Candida diddensii, Candida famata y Debaryomyces hansenii, isolated form olive fermentations at low temperature was studied. The response, growth rate, at increasing time intervals, was studied by means of a General Linear Model (GLM) repeated measures, paying special attention to interactions. The most vigorous yeasts in YMGP were P. anomala, C. diddensii, y Deb. hansenii, who were able to grow at 7ºC and 8% salt. In brine, in addition to the main effects, the interactions salt-yeast, time-pH, time-yeast-species were also significant. P. membranaefaciens showed greater salt tolerance in brine than in YMPG. S. cerevisiae, P. minuta and C. famata were inhibited of both pH 3,5 and pH 4 at 7ºC. A sinergistic effect of salt and pH can inhibit yeast growth at 7ºC.

Los autores desean expresar su gratitud a la CICYT (AGL2000-1539-CO2-01) y a la Unión Europea (FAIR-97-9526) por la financiación parcial de esta investigación.

Peer reviewed

Country
Spain
Related Organizations
Keywords

Low temperature-pH, Yeasts, Salt, Table olives

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green