Investigation of selective arabinose release from corn fibre by acid hydrolysis under mild conditions

Csaba Fehér, Zita Gazsó, Patomwat Tatijarern, Máté Molnár, Zsolt Barta, K. Réczey

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The high cost of pure arabinose has resulted in a growing demand to develop new cost-effective methods of arabinose production from lignocellulosic and pectin-rich materials. Corn fibre is an inexpensive by-product of the corn wet-milling process, and is a promising raw material for producing arabinose and other value-added products. In this study fast dilute sulphuric acid hydrolysis of corn fibre was investigated for selective arabinose solubilization. Acid concentration and reaction time of hydrolysis of destarched ground corn fibre and raw corn fibre were 0.25-5 w/w% at 5-15 min and 0.25-1.25 w/w% at 25-75 min, respectively. Results were evaluated statistically and model equations were developed to predict the yields of sugars. RESULTS: In the case of raw corn fibre the most favourable conditions were 1.1 w/w% sulphuric acid concentration and 51 min reaction time at 90°C, where a total arabinose yield of 75.9% was achieved with satisfactory selectivity. In the case of destarched ground corn fibre at a sulphuric acid concentration of 4.6 w/w%, a reaction time of 5 min and a temperature of 90°C, a total arabinose yield of 80.5% could be achieved with satisfactory selectivity, according to the model equations. CONCLUSION: Arabinose-rich liquid fractions were produced by mild sulphuric acid treatments of corn fibre. Based on the models developed the mono- and oligosaccharide contents of the hydrolysates can be controlled under the conditions investigated.

Original languageEnglish
Pages (from-to)896-906
Number of pages11
JournalJournal of Chemical Technology and Biotechnology
Volume90
Issue number5
DOIs
Publication statusPublished - May 1 2015

Fingerprint

Arabinose
Zea mays
hydrolysis
Hydrolysis
maize
Acids
Fibers
acid
sulfuric acid
Reaction Time
Oligosaccharides
Monosaccharides
Costs and Cost Analysis
monosaccharide
fibre
Sugars
solubilization
Byproducts
Costs
cost

Keywords

  • Arabinose production
  • Biomass pre-treatment
  • Biorefinery
  • Hemicellulose hydrolysis
  • Lignocellulose fractionation

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Biotechnology
  • Fuel Technology
  • Renewable Energy, Sustainability and the Environment
  • Pollution
  • Waste Management and Disposal
  • Inorganic Chemistry
  • Organic Chemistry

Cite this

Investigation of selective arabinose release from corn fibre by acid hydrolysis under mild conditions. / Fehér, Csaba; Gazsó, Zita; Tatijarern, Patomwat; Molnár, Máté; Barta, Zsolt; Réczey, K.

In: Journal of Chemical Technology and Biotechnology, Vol. 90, No. 5, 01.05.2015, p. 896-906.

Research output: Contribution to journalArticle

Fehér, Csaba ; Gazsó, Zita ; Tatijarern, Patomwat ; Molnár, Máté ; Barta, Zsolt ; Réczey, K. / Investigation of selective arabinose release from corn fibre by acid hydrolysis under mild conditions. In: Journal of Chemical Technology and Biotechnology. 2015 ; Vol. 90, No. 5. pp. 896-906.
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