From: Improvement of endothelial function by Gunnera tinctoria extract with antioxidant properties
Sample
µmol of Fe2+/g of extract or standard
4 min
60 min
G. tinctoria extract
0.73 ± 0.01a
1.44 ± 0.02a
Quercetin
1.88 ± 0.02b
3.01 ± 0.14b