Potere antiossidativo in foglie della pianta resurrection Ramonda serbica sottoposta a disidratazione

Ramonda serbica plants were dehydrated up to 11.2% relative water content and then rehydrated. Ascorbate and glutathione contents increased at the end of dehydration and approached to control values at the end of rehydration. During dehydration phenolic acids decreased and returned to control values at the end of rehydration. In Ramonda serbica leaves the most representative phenolic acids were protocatechuic, p-hydroxybenzoic and chlorogenic acids. Most concentrated phenolc acids such as protocatechuic and chlorogenic acids accumulated during the first period of rehydration when reduced form of ascorbate decreased.