Probiotic and milk technological properties of Lactobacillus brevis

Elina Rönkä, Erja Malinen, Maria Saarela, Merja Rinta-Koski, Johannes Aarnikunnas, Airi Palva (Corresponding Author)

    Research output: Contribution to journalArticleScientificpeer-review

    110 Citations (Scopus)

    Abstract

    Two Lactobacillus brevis strains ATCC 8287 and ATCC 14869T, were evaluated for their applicability as putative probiotics in dairy products. The strains expressed good in vitro adherence to human Caco-2 and Intestine 407 cells and tolerated well low pH, bile acids and pancreatic fluid under in vitro conditions. In antimicrobial activity assays, strain ATCC 8287 showed inhibitory properties toward selected potential harmful microorganisms, particularly against Bacillus cereus. Both L. brevis strains were resistant to vancomycin, which is typical for the genus Lactobacillus. The L. brevis strains were not able to acidify milk to yoghurt but were suitable as supplement strains in yoghurts. This was shown by producing a set of yoghurt products and analysing their rheological and sensory properties during a cold storage period of 28 days. Survival of the strains through human intestine was examined in 1-week feeding trials. Despite its human origin, L. brevis ATCC 14869T could not survive through the gastrointestinal (GI) tract, whereas L. brevis ATCC 8287 was detected in the faecal samples taken during and immediately after ingestion of the strain. In conclusion, L. brevis ATCC 8287 is a promising candidate as a probiotic supplement in dairy products.
    Original languageEnglish
    Pages (from-to)63-74
    Number of pages12
    JournalInternational Journal of Food Microbiology
    Volume83
    Issue number1
    DOIs
    Publication statusPublished - 2003
    MoE publication typeA1 Journal article-refereed

    Keywords

    • Milk
    • Probiotic supplement
    • Lactobacillus brevis

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