Table 5.

The scavenging activity of DPPH radicals of Galaxaura rugosa and Liagora hawaiiana.

Concentration (µg/ml)	DPPH scavenging (%)
	Galaxaura rugosa	Liagora hawaiiana	Ascorbic acid
000	00.00	00.00	00.00
001	10.87 ± 1.50	4.96 ± 1.32	12.98 ± 1.41
002	12.35 ± 1.11	9.83 ± 1.21	16.38 ± 1.44
004	21.39 ± 1.71	16.61 ± 1.54	62.98 ± 1.62
008	28.09 ± 1.32	22.35 ± 1.33	76.81 ± 1.57
016	34.35 ± 1.91	27.91 ± 1.38	78.72 ± 1.75
032	55.48 ± 1.22	35.65 ± 1.30	78.94 ± 1.51
064	66.00 ± 1.58	53.83 ± 1.27	80.21 ± 1.14
128	80.96 ± 1.30	66.87 ± 1.12	86.36 ± 1.09
IC50	27.8 ± 1.22	57.2 ± 1.35	11.2 ± 1.55

Values are expressed as mean ± SEM of 3 replicates.