Abstract Background Copper is an essential metal for living organisms as a catalytic co-factor for important enzymes. like cytochrome c oxidase the final enzyme in the electron transport chain. Plasmodium falciparum parasites in infected red blood cells are killed by excess copper and development in erythrocytes is inhibited by copper chelators. Cytochrome c oxidase in yeast obtains c... https://megavitamines.shop/product-category/polyphenol/