Production of high-value β-1,3-glucooligosaccharides by microwave-assisted hydrothermal hydrolysis of curdlan

Damao Wang, Do Hyoung Kim, Jeong Jun Yoon, Kyoung Heon Kim

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

We report the first hydrothermal hydrolysis of curdlan, a water insoluble β-1,3-glucan, to produce β-1,3-glucooligosaccharides, which are high-value materials with health-benefiting activities. In this study, hydrothermal hydrolysis was tested for the liquefaction and saccharification of curdlan. The optimal hydrothermal hydrolysis conditions were 180 °C and 60 min, respectively, resulting in a high degree of liquefaction (98.4%) and low byproduct formation. Under the optimal conditions, 17.47 g/L of β-1,3-glucooligosaccharides was produced from 20 g/L of curdlan, representing a conversion yield of 87.4% (w/w). Using this process, β-1,3-glucooligosaccharides were conveniently produced in a one-step reaction without any chemicals or enzymes. This hydrothermal hydrolysis for curdlan exhibited the best performance among various hydrolysis processes reported to date. This method can be applied to large-scale production of β-1,3-glucooligosaccharides for the functional food and biopharmaceutical industries.

Original languageEnglish
Pages (from-to)233-237
Number of pages5
JournalProcess Biochemistry
Volume52
DOIs
Publication statusPublished - 2017 Jan 1

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Keywords

  • Curdlan
  • Hydrothermal hydrolysis
  • β-1,3-Glucan
  • β-1,3-Glucooligosaccharides

ASJC Scopus subject areas

  • Bioengineering
  • Biochemistry
  • Applied Microbiology and Biotechnology

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