Enrichment of the glycoalkaloids α-solanine and α-chaconine from potato juice by Adsorptive Bubble Separation using a pH gradient

Marlène Backleh, Perihan Ekici, Günther Leupold, Mehmet Coelhan, Harun Parlar

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

For the first time, the solanidine alkaloids α-solanine and α-chaconine could be quantitatively enriched from potato juice by Adsorptive Bubble Separation (ABS) with a pH gradient. The enrichment into the foam was influenced by the pH value, bubble size, and gas flow rate. The efficiency was highest on using diluted samples with a concentration between 2 and 6 mg L-1 of the alkaloids at pH 6.0. The experiments with a standard solution of each alkaloid confirmed that these substances can be quantitatively enriched into the 'spumat' without surface active potato proteins. The transfer into the foam fraction under these conditions was similar to that from the aqueous potato extract.

Original languageEnglish
Pages (from-to)1042-1044
Number of pages3
JournalJournal of Separation Science
Volume27
Issue number12
DOIs
StatePublished - Aug 2004

Keywords

  • Adsorptive Bubble Beparation
  • Glycoalkaloids
  • Potato
  • α-chaconine
  • α-solanine

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