Utilization of electrodialysis for galacturonic acid recovery

Eszter Molnár, Matild Eszterle, Kornélia Kiss, Nándor Nemestóthy, Jeno Fekete, Katalin Bélafi-Bakó

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Recovery of galacturonic acid from sugar beet pulp's pectin hydrolysate by electrodialysis process was studied. An asymmetric electrodialysis cell (consisted of three cation-selective and two anion-selective membranes) was constructed which was firstly tested by model solutions. Then measurements were carried out using pectin hydrolysate obtained by enzymatic hydrolysis of sugar beet pulp pectin using Pectinex 100 L enzyme preparation. As a result 94% of the initial galacturonate concentration was recovered by the electrodialysis cell and 25.4% galacturonate content in the concentrate solution was achieved.

Original languageEnglish
Pages (from-to)81-85
Number of pages5
JournalDesalination
Volume241
Issue number1-3
DOIs
Publication statusPublished - May 31 2009

Keywords

  • Agro-waste
  • Membrane separation
  • Organic acid
  • Sugar-beet pectin

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Science(all)
  • Water Science and Technology
  • Mechanical Engineering

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