Table 4.

DPPH radical scavenging activity (EC₅₀ value, mg extract mL⁻¹ methanol) in extracts of G. gracilis sampled in four different seasons (n = 3).

	Extracts
Date	HE	EA	ME	WT	CTR (BHT)
11 July	1.1 ± 0.06 a	0.82 ± 0.04 a	2.94 ± 0.15 a	10 ± 0.50 *	0.67 ± 0.03
11 October	3.43 ± 0.17 b	2.55 ± 0.13 b	5.73 ± 0.29 b	30.4 ± 1.52 *
12 January	3.32 ± 0.17 b	3.47 ± 0.17 c	9.72 ± 0.49 c	33.17 ± 1.66 a
12 April	4.29 ± 0.21 c	7.03 ± 0.35 d	8.72 ± 0.44 c	35.03 ± 1.75 a

All the values are mean ± SD; SD: standard deviation; HE: n-Hexan; EA: Ethyl Acetate; ME: methanol; WT: Water (80 °C); CTR: Control (gallic acid). ^a–d Column wise values with different superscripts of this type indicate significant difference (p <0.05). * EC₄₀ value (mg extract mL⁻¹ methanol).