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Malt sprout extract medium for cultivation of Lactobacillus plantarum protective cultures

  • Arja Laitila*
  • , Maria Saarela
  • , Liza Kirk
  • , Matti Siika-aho
  • , Auli Haikara
  • , Tiina Mattila-Sandholm
  • , Ilkka Virkajärvi
  • *Corresponding author for this work
    • VTT (former employee or external)

    Research output: Contribution to journalArticleScientificpeer-review

    Abstract

    Aims: The aim was to develop a cheap cereal-based alternative medium for the large-scale production of biopreservative Lactobacillus plantarum VTT E-79098. We examined the effect of growth medium and pH control on the cell yield of Lact. plantarum E-79098 and the antimicrobial activity of the cell‐free extracts.

    Methods: Fermentations using a novel Malt Sprout Extract Medium (MSE) were performed with different pH regimes. The antimicrobial activity of the cell-free extracts against Pantoea agglomerans VTT E-90396 and Fusarium avenaceum VTT D-80147 was assessed with automated turbidometry.

    Significance and Impact of the Study: When compared with MRS, the MSE medium cultures produced equal growth yields of Lact. plantarum VTT E-79098 and enhanced antimicrobial potential against the Gram-negative bacterium P. agglomerans and a Fusarium fungus. The MSE medium can be used as a low‐cost alternative to MRS for producing high cell yields and good antimicrobial activity of Lact. plantarum.

    Original languageEnglish
    Pages (from-to)336-340
    JournalLetters in Applied Microbiology
    Volume39
    Issue number4
    DOIs
    Publication statusPublished - 2004
    MoE publication typeA1 Journal article-refereed

    Keywords

    • antimicrobial
    • biocontrol
    • cultivation
    • growth medium
    • malt sprouts

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