Search

Complexes of cooper (II) and iron (II) with flavonoid quercetin have been synthesized. The structure of compounds has been confirmed by means of UV-Vis and FTIR spectroscopic techniques. The antioxidant activity of the flavonoid complexes has been evaluated by using the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging method. These complexes of flavonoids are much more effective free radical scavengers than the free flavonoids, an aspect which recommends them for further studies on possible therapeutic applications.

There are numerous phytochemicals (isoflavones, flavonoids, catechins, anthocyanins, carotenoids, polyphenols, phenolic acids), which are largely used in the pharmaceutical industry. This research describes the process through which, one can obtain medicinal extracts from mistletoe (Viscum album L.) and garlic (Allium sativum L.) while giving an exact characterisation of the two extracts. The HPLC/MS analysis was employed in order to identify and evaluate the presence of phenolic acids (gentisic acid, chlorogenic acid, p-coumaric acid, ferulic acid and sinapic acid) and of flavonoids (hyperoside, isoquercitrin, rutin and luteolin). The results suggest that these medicinal extracts could replace the chemical compounds used in various therapies and which unfortunately have side effects on patients.