Impact of extraction processes on prebiotic potential of the brown seaweed Ecklonia radiata by in vitro human gut bacteria fermentation

Suvimol Charoensiddhi, Michael Conlon, Michelle Vuaran, Christopher Franco, Wei Zhang

    Research output: Contribution to journalArticle

    37 Citations (Scopus)

    Abstract

    The prebiotic potential of the extracts of a South Australian brown seaweed Ecklonia radiata obtained using different processes was investigated. Six extracts of this seaweed were prepared by enzymatic, acidic, and water extraction processes. The extracts were added to an in vitro anaerobic fermentation system containing human faecal inocula to assess their ability to generate short chain fatty acids (SCFAs) and to promote the growth of selected bacterial genera (as assessed by quantitative PCR). Following 24 h fermentation, all seaweed extracts significantly increased (P < 0.05) total SCFA production (50.7-72.7 μmol/mL) and the total number of bacteria (log10 10.2-10.4 cells/mL) when compared to controls (blank and cellulose). The extracts prepared using Celluclast-assisted extraction showed the greatest potential for improving gut health as these induced significantly higher production of butyrate (9.2 μmol/mL), and the growth of bacteria regarded as beneficial, including Bifidobacterium (log10 6.6 cells/mL) and Lactobacillus (log10 5.3 cells/mL).

    Original languageEnglish
    Pages (from-to)221-230
    Number of pages10
    JournalJournal of Functional Foods
    Volume24
    DOIs
    Publication statusPublished - 2016

    Fingerprint Dive into the research topics of 'Impact of extraction processes on prebiotic potential of the brown seaweed Ecklonia radiata by in vitro human gut bacteria fermentation'. Together they form a unique fingerprint.

    Cite this