Microencapsulation of a probiotic bacteria with alginategelatin and its properties

  • Xiao Yan Li
  • , Xi Guang Chen
  • , Dong Su Cha
  • , Hyun Jin Park
  • , Cheng Sheng Liu

    Research output: Contribution to journalArticlepeer-review

    96 Citations (Scopus)

    Abstract

    Lactobacillus casei ATCC 393-loaded microcapsules based on alginate and gelatin had been prepared by extrusion method and the product could increase the cell numbers of L. casei ATCC 393 to be 107 CFU g-1 in the dry state of microcapsules. The microparticles homogeneously distributed with size of 1.1 ± 0.2 mm. Four kinds of microcapsules (S1, S2, S3 and S4) exhibited swelling in simulated gastric fluid (SGF) while the beads eroded and disintegrated rapidly in simulated intestinal fluid (SIF). Cells of L. casei ATCC 393 could be continuously released from the microcapsules during simulated gastrointestinal tract (GIT) and the release amounts and speeds in SIF were much higher and faster than that in SGF. Encapsulation in alginategelatin microcapsules successfully improved the survival of L. casei ATCC 393 and this approach might be useful in delivery of probiotic cultures as a functional food.

    Original languageEnglish
    Pages (from-to)315-324
    Number of pages10
    JournalJournal of Microencapsulation
    Volume26
    Issue number4
    DOIs
    Publication statusPublished - 2009 Jun

    Keywords

    • Lactobacillus casei ATCC 393
    • Microcapsule
    • Relative humidity (RH)
    • Release
    • Stability

    ASJC Scopus subject areas

    • Bioengineering
    • Pharmaceutical Science
    • Physical and Theoretical Chemistry
    • Organic Chemistry
    • Colloid and Surface Chemistry

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