Total phenolics, total flavonoids and antioxidant activities of
marigold extracts
Different extraction solvents resulted in significant
changes in the total phenolics content, total flavonoids content
and antioxidant activity (Pb0.05, Table 1). The total
phenolics ranged from 8.50 to 62.36 mg GAE/g. The total flavonoids
varied from 19.04 to 97.00 mg RE/g. The content of
total phenolics and flavonoids firstly increased and then decreased
with the elevation of EtOH concentration. The extract
with EtOH/water (7:3, v/v) had the highest content of total
phenolics and flavonoids. This result was consisted to previous
studies