Effect of juice concentration on storage stability, betacyanin degradation kinetics, and sensory acceptance of red-fleshed dragon fruit (Hylocereus polyrhizus) juice

Lee Fong Siow, Yen Ming Wong

Research output: Contribution to journalArticleResearchpeer-review

18 Citations (Scopus)

Abstract

The aim of this study was to evaluate the effect of red-fleshed dragon fruit (Hylocereus polyrhizus) juice concentration on betacyanin degradation kinetics and sensory acceptance. The samples stored at 4°C were comparatively stable compared to 25°C in terms of betacyanin retention, and yeast and mold growth. The loss of betacyanin in red-fleshed dragon fruit juice and concentrate at 25, 37, and 45°C were of first-order reaction. The drink reconstituted from red-fleshed dragon fruit concentrate showed better acceptability in terms of sweetness, flavor, and overall acceptability. The current study demonstrated improved betacyanin retention and sensory acceptance of red-fleshed dragon fruit juice via juice concentration.

Original languageEnglish
Pages (from-to)623-632
Number of pages10
JournalInternational Journal of Food Properties
Volume20
Issue number3
DOIs
Publication statusPublished - 2017

Keywords

  • Concentrate
  • Kinetics
  • Pitaya
  • Sensory
  • Storage, Betacyanin

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