Effect of solute and matric potential on growth rate of fungal species isolated from cheese

Marín, Paloma and Palmero Llamas, Daniel and Jurado García-Posada, Miguel (2014). Effect of solute and matric potential on growth rate of fungal species isolated from cheese. "International Dairy Journal", v. 36 (n. 2); pp. 89-94. ISSN 0958-6946. https://doi.org/10.1016/j.idairyj.2014.01.012.

Description

Title: Effect of solute and matric potential on growth rate of fungal species isolated from cheese
Author/s:
  • Marín, Paloma
  • Palmero Llamas, Daniel
  • Jurado García-Posada, Miguel
Item Type: Article
Título de Revista/Publicación: International Dairy Journal
Date: June 2014
ISSN: 0958-6946
Volume: 36
Subjects:
Faculty: E.U.I.T. Agrícolas (UPM)
Department: Producción Vegetal: Botánica y Protección Vegetal [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The effect of water potential ( J w ) on the growth of 15 fungal species isolated from cheeses was analysed. The species, identified mainly by analysis of DNA sequences, belonged to genera Penicillium , Geotrichum , Mucor , Aspergillus , Microascus and Talaromyces . Particularly, the effect of matric potential ( J m ), and ionic (NaCl) and non-ionic (glycerol) solute potentials ( J s ) on growth rate was studied. The response of strains was highly dependent on the type of J w . For J s , clear profiles for optimal, permissive and marginal conditions for growth were obtained, and differences in growth rate were achieved comparing NaCl and glycerol for most of the species. Conversely, a sustained growth was obtained for J m in all the strains, with the exception of Aspergillus pseudoglaucus , whose growth increased proportionally to the level of water stress. Our results might help to understand the impact of environmental factors on the ecophysiology and dynamics of fungal populations associated to cheeses.

More information

Item ID: 23052
DC Identifier: http://oa.upm.es/23052/
OAI Identifier: oai:oa.upm.es:23052
DOI: 10.1016/j.idairyj.2014.01.012
Deposited by: Memoria Investigacion
Deposited on: 19 Mar 2014 11:55
Last Modified: 10 Apr 2019 13:43
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