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Comparison of biocontrol activity of Kluyveromyces lactis with other yeast strains against Penicillium expansum.

Author(s) : TACZMAN-BRÜCKNER A., MOHÁCSI-FARKAS C., BALLA C., et al.

Type of article: Article

Summary

Applying antagonistic yeasts is one of the recent possibilities for controlling postharvest disease caused by blue mould (Penicillium expansum). In this work, antagonistic activity of several Kl. lactis strains was tested against two strains of P. expansum. Three strains of Kl. lactis were compared with three biocontrol yeasts: Metschnikowia pulcherrima, Sporobolomyces roseus and Pichia anomala. The investigations were carried out at 25, 15 and 5 °C, applying different yeast cell densities and culture media. Statistical analysis showed no significant differences among the three Kl. lactis strains. The inhibitory effect of the tested yeasts was different according to the applied mould strain temperature, culture medium and cell density. Application of antagonistic yeasts combined with reduced temperature enhanced the inhibitory effect. Direct relationship was observed between increasing cell density and the biocontrol efficiency of Kl. lactis. According to this work, Kl. lactis is a possible biocontrol agent.

Details

  • Original title: Comparison of biocontrol activity of Kluyveromyces lactis with other yeast strains against Penicillium expansum.
  • Record ID : 2006-0829
  • Languages: English
  • Source: Acta Aliment. - vol. 34 - n. 1
  • Publication date: 2005/03

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