National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 

Phytochemical study of Helianthus annuus L. II
Niedobová, Soňa ; Karlíčková, Jana (advisor) ; Opletal, Lubomír (referee)
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.

Interested in being notified about new results for this query?
Subscribe to the RSS feed.