Extraction and antioxidant activity: The results of antioxidant activity from extracted liquid fermentation medium which was inoculated with Fennellia nivea NRRL 5504 can be seen in Table 2. The yields are weight of each fraction from 2 L of fermentation medium.
From Table 2, it showed that the highest weight after extraction was resulted in residue. Meanwhile the most active extract was ethyl acetate with IC50 of 0.83 mg mL-1. This result showed that among others the bioactive constituent dominantly found in this extract. And although the residue yielded the highest result, but the antioxidant activity of this extract was lower than ethyl acetate extract. According to it we expected that the polarity of bioactive constituent was higher than ethyl acetate but lower than water.