Functional food applications of dextran from Weissella cibaria RBA12 from pummelo (Citrus maxima)

Rwivoo Baruah, Ndegwa H. Maina, Kati Katina, Riikka Juvonen, Arun Goyal (Corresponding Author)

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Weissella cibaria RBA12 isolated from pummelo from Northeast India produces a dextran composed of 97% α-(1 → 6) linkages in the main chain and 3% α-(1 → 3) branched linkages. The in vitro prebiotic activity of dextran-RBA12 was explored. Dextran-RBA12 displayed enhanced growth of probiotic Bifidobacterium and Lactobacillus spp., and controlled growth of non-probiotic enteric bacteria. Dextran-RBA12 showed superior resistance to physiological barriers with a maximum hydrolysis of 0.51%, 0.31% and 0.24% by artificial gastric juice, α–amylase and intestinal fluid, respectively, whereas compared to maximum hydrolysis of 25.23%, 19.13% and 6%, respectively after 5 h of incubation shown by commercial prebiotic inulin. The production of dextran from Weissella cibaria RBA12 in sourdough prepared from whole wheat flour, wheat bran and rye bran showed the highest dextran of 3.26 ± 0.12% d.w. in rye bran. The overall study summarized that dextran-RBA12 can be used as a prebiotic and also can be easily produced in sourdough.

Original languageEnglish
Pages (from-to)124-131
Number of pages8
JournalInternational Journal of Food Microbiology
Volume242
DOIs
Publication statusPublished - 2 Feb 2017
MoE publication typeA1 Journal article-refereed

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Keywords

  • Dextran
  • Inulin
  • NMR
  • Prebiotic
  • Sourdough
  • Weissella
  • Dietary Fiber/metabolism
  • Prebiotics/analysis
  • Triticum/microbiology
  • Citrus/microbiology
  • Bifidobacterium/growth & development
  • Flour/analysis
  • Dextrans/analysis
  • India
  • Weissella/chemistry
  • Functional Food/analysis

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