Table 4.

Antioxidant activities demonstrated by Streptomyces sp. NMF6 extract expressed as ascorbic acid equivalents

Sample mass (μg)	*Ascorbic acid equivalent (μg)
	DPPH assay	Phosphomolybdenum assay	Ferric-reducing power assay
25	3.37 ± 0.28	2.36 ± 0.19	1.91 ± 0.14
50	5.84 ± 0.29	4.10 ± 0.04	2.79 ± 0.23
75	7.96 ± 0.10	5.28 ± 0.30	3.98 ± 0.22
100	9.63 ± 0.08	6.22 ± 0.02	5.13 ± 0.12
125	10.78 ± 0.05	7.32 ± 0.07	6.53 ± 0.12
150	11.83 ± 0.14	7.70 ± 0.03	7.67 ± 0.15

*Data are expressed as mean ± standard deviation (n = 3)