Abstract :
This study focused on optimization of the extraction conditions of phenolic compounds from the aerial and the underground parts of a medicinal plant, endemic in the Algerian Sahara: Salvia chudaei Batt. & Trab. (Lamiaceae). This plant has been subjected to two extraction methods (soxhlet and maceration), with optimization of extraction conditions (solvent, concentration, time and temperature). The best extracts based on the antioxidant capacity using two tests (FRAP and DPPH) were obtained by ethanol 80% as solvent and extraction period of 100 min for the aerial part and 20 min for the underground part by soxhlet method, whereas, 60 min at 30°C for the aerial part and 15°C for the underground part were appropriate for extraction by maceration.
Keyword :
Salvia chudaei, optimization, extraction, phenolic compounds, antioxidant activity