Isolation of solanidine from haulm and tuber sprouts of potato (Solanum tuberosum L.) |
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Authors: | M Z Stankovi? Nada C Nikoli? R Pali? M D Caki? V B Veljkovi? |
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Institution: | (1) Faculty of Technology, University of Niš, Durmitorska 19, 16000 Leskovac, Yugoslavia;(2) Faculty of Phylosophy, Department of Chemistry, University of Niš, 18000 Niš, Yugoslavia |
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Abstract: | Summary The kinetics of enzymatic transformation of total glycoalkaloids (TGA) in haulm and tuber sprouts of potato to solanidine
and the kinetics of solanidine isolation from plant material were studied. The optimum reaction conditions for the enzymatic
TGA transformation were found for haulm to be: plant material to liquid phase 1:4 w/v, temperature 35°C, pH 5.4; and for tuber
sprouts: plant material to liquid phase 1:3 w/v, temperature 37°C, pH 5.4. The. maximum degree of enzymatic transformation
of TGA in haulm and tuber sprouts of 65 and 75%, respectively, was achieved after 50h. Carbon tetrachloride was the best solvent
for solanidine extraction from the plant materials. The optimum ratio of plant material to carbon tetrachloride for the isolation
of solanidine was 1:8 w/v for both extraction cycles, ensuring a yield of solanidine of approximately 55 and 65% from haulm
and tuber sprouts, respectively, after 30 min. |
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Keywords: | total glycoalkaloids α -solanine α -chaconine extraction |
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