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DPPH free radical scavenging activity of M. radiotolerans MAMP 4754 crude extract (n = 3). Ascorbic acid (vitamin C) was used as a positive control. IC50 values were 6.69 μg/mL and 5.65 μg/mL for the ascorbic acid and the crude extract, respectively. Statistical analysis was performed using ANOVA and the differences were considered significant at p < 0.05.
