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Enrichment of the glycoalkaloids α‐solanine and α‐chaconine from potato juice by Adsorptive Bubble Separation using a pH gradient
Author(s) -
Backleh Marlène,
Ekici Perihan,
Leupold Günther,
Coelhan Mehmet,
Parlar Harun
Publication year - 2004
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.200301685
Subject(s) - chemistry , chromatography , bubble , aqueous solution , fraction (chemistry) , organic chemistry , parallel computing , computer science
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.