In Vitro Properties of Potential Probiotic Indigenous Yeasts Originating from Fermented Food and Beverages in Taiwan

Ruo Ting Hsiung, Wei Ta Fang, Ben A. LePage, Shih An Hsu, Chia Hsuan Hsu, Jui Yu Chou*

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    19 Citations (Scopus)

    Abstract

    Probiotics are live microorganisms that may be able to help prevent and treat some illnesses. Most probiotics on the market are bacterial, primarily Lactobacillus. Yeast are an inevitable part of the microbiota of various fermented foods and beverages and have several beneficial properties that bacteria do not have. In this study, yeast strains were isolated from fermented food and beverages. Various physiological features of the candidate probiotic isolates were preliminarily investigated, including bile salt and acid tolerance, cell surface hydrophobicity, autoaggregation, antioxidant activity, and β-galactosidase activity. Several yeast strains with probiotic potential were selected. Overall, Kluyveromyces marxianus JYC2614 adapted well to the bile salt and acid tolerance test; it also had favorable autoaggregation and good cell-surface hydrophobicity. Klu. marxianus JYC2610 grew well according to the bile salt and acid tolerance test and performed well regarding cell surface hydrophobicity and β-galactosidase activity. Selected yeast species can survive in a gastrointestinal environment and should be further evaluated in vivo as probiotics in the future. Our findings should encourage further studies on the application of the strains in this study as food and feed supplements.

    Original languageEnglish
    Pages (from-to)113-124
    Number of pages12
    JournalProbiotics and Antimicrobial Proteins
    Volume13
    Issue number1
    DOIs
    Publication statusPublished - 2021 Feb

    Keywords

    • Fermented food and beverages
    • Probiotic
    • Sustainable development
    • Yeast

    ASJC Scopus subject areas

    • Microbiology
    • Molecular Medicine
    • Molecular Biology

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