BioMed Research International / 2011 / Article / Tab 5

Research Article

Enteromorpha compressa Exhibits Potent Antioxidant Activity

Table 5

Antioxidant activity (%) of algal crude extract, spring-collected ethyl acetate (EA) extract and standard BHT by different antioxidant methods at 100 and 200 μg/mL.

Extract DPPH ABTS Total antioxidant Reducing powerβ-carotene bleaching

100200100200100200100200100200

Crude (ethanolic extract)46 ± 1.655.7 ± 1.930.3 ± 0.9034.5 ± 0.72.7 ± 0.39.0 ± 0.25.15 ± 1.06.18 ± 1.065 ± 1.067 ± 1.88
EA (spring)79.5 ± 4.695.7 ± 7.916.5 ± 0.620.5 ± 1.210.7 ± 0.917.50 ± 0.16.5 ± 0.37.47 ± 0.518 ± 1.220 ± 2.6
BHT83 ± 2.888 ± 6.383.6 ± 4.984.6 ± 5.932.20 ± 1.637.1 ± 4.615.03 ± 2.318.12 ± 2.166 ± 3.768 ± 1.8
LSD0.3380.3380.0410.0414.1304.1300.0240.0240.4130.413

Each value is presented as mean of triplet treatments; LSD: Least significant difference at P ≤ 0.01 according to Duncan’s multiple range test.