ConclusionsOn the basis of the above results, it could be concluded thatextraction with various solvents of varying polarities affect the totalphenolic content, phenolic constitutes and antioxidant activity.Solvents with medium polarity (aqueous methanol and aque-ous ethanol) were more efficient in the extraction of phenolicsfrom sunflower florets than solvents with high (water) or low(ethyl acetate) polarity. Nine and six phenolic compounds weredetected in aqueous alcohols extracts of ray florets and disc flo-rets, respectively. Aqueous methanol (90%, v/v) seems to be themost recommended solvent for extraction of phenolics from bothray florets and disc florets. In addition, significant positive corre-lations have been found between the total phenolic contents andantioxidant activity. The study also indicates that the capitulum ofsunflower (H. annuus L.) could be considered as a good source ofnatural antioxidant phenolics.