publication . Master thesis . 2007

Fytochemický výzkum Helianthus annuus L. II

Niedobová, Soňa;
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  • Published: 01 Jan 2007
  • Country: Czech Republic
OF THE DIPLOMA THESIS My diploma thesis was intended on phytochemical study of polar extract of Helianthus annuus L. leaves and simultaneously biological tests were done (so-called bioassay - guided separation) - acute toxicity, antioxidant activity (DPPH test, FRAP metod) and antifungal activity. The Fraction 29 showed the highest antioxidant activity. The Fraction 22-24/3, obtained by preparative chromatography, was analyzed by gas chromatography. This analysis shows present of the oil-acid, the oily acids with a middle chain, the palmitoic acid and the myristic acid.
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