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Characterization of soluble dietary fibers from wax gourd (Benincasa hispida) pulp and peel

  • Sun Pyo Hong
  • , Hyun Il Jun
  • , Geun Seoup Song
  • , Yong Ju Kwon
  • , Young Soo Kim*
  • *Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

Abstract

The physicochemical and in vitro physiological properties of soluble dietary fiber (SDF) from wax gourd (Benincasa hispida) pulp and peel were investigated. The pulp was composed of 11.4% SDF and 24.3% insoluble dietary fiber (IDF), while the peel contained 3.2% SDF and 43.3% IDF. The predominant sugar in the SDF of the wax gourd pulp and peel was uronic acid, followed by galactose and rhamnose. The SDFs from the wax gourd pulp and peel gave similar elution patterns, with 4 main neutral sugar and uronic acid peaks eluted by 0.4, 0.5, 1, and 2 M ammonium acetate buffer. The pulp SDF had a much higher glucose retardation index (GRI) than the peel SDF for all measurement times. The pulp SDF showed strong growth-inhibiting activity against Escherichia coli and Clostridium perfringens, whereas the peel SDF produced strong growth-promoting activity against Bifidobacterium longum, Bifidobacterium infantis, and Lactobacillus brevis when compared to glucose.

Original languageEnglish
Pages (from-to)734-738
Number of pages5
JournalFood Science and Biotechnology
Volume17
Issue number4
StatePublished - 2008

Keywords

  • Glucose retardation effect
  • Growth-inhibiting activity
  • Growth-promoting activity
  • Soluble dietary fiber
  • Wax gourd

Quacquarelli Symonds(QS) Subject Topics

  • Agriculture & Forestry
  • Biological Sciences

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