Table 1.

The antioxidant activities demonstrated by Streptomyces MUM292 extract in different antioxidant assays.

Concentration of Streptomyces sp. MUM292 extract (mg/mL)	Antioxidant activities
	DPPH radical scavenging activity (%)	ABTS radical scavenging activity (%)	Superoxide dismutase-like activity (%)	Metal-chelating activity (%)
0.25	2.40 ± 1.26	10.64 ± 1.27∗	43.66 ± 1.86∗	14.75 ± 0.41∗
0.5	9.09 ± 1.40∗	15.89 ± 1.96∗	56.57 ± 1.47∗	15.60 ± 1.28∗
1	21.12 ± 1.55∗	29.76 ± 2.60∗	62.21 ± 0.81∗	16.31 ± 2.33∗
2	29.17 ± 6.21∗	34.62 ± 2.59∗	65.14 ± 1.76∗	17.44 ± 1.29∗
4	35.98 ± 5.39∗	67.96 ± 2.23∗	79.23 ± 0.70∗	22.54 ± 2.37∗

^∗Statistically significant (p < 0.05) when compared to control (without extract).