Total phenolic content of crude extracts from ray florets (A) and disc florets(B) as effected by different solvents (mg GAE/100 g dw) (n = 3). Polarity (P) of the solvents was as follows: ethyl acetate (P= 4.30), 90% (v/v) aqueous ethanol (4.89),90% (v/v) aqueous methanol (6.69), 50% (v/v) aqueous ethanol (7.25), 50% (v/v) aqueous methanol (8.40), and distilled water (10.20). Data bearing different lowercaseletters are significantly different (p < 0.05).