<b>Influence of solvents on the extraction efficiency and biological activity of marbled eel mucus</b>

1. The chemical composition of marble eel mucus was analyzed, including protein content (13.74 %), lipid (9.14 %), crude ash (6.83%), and moisture (76.29 %).2. Were 20 compounds shown in the extract of <i>A. marmorata</i> mucus by High-Performance Liquid Chromatography analysis.3. Antioxidant activity was determined by the DPPH method (2,2—Diphenyl—1—picrylhydrazyl), which showed that the extract's highest antioxidant activity is 97.899 %, with an IC50 of 46.984 ± 0.004 (mg/mL).4. The mucus extracts have high inhibition to both types of bacteria, with a higher zone of inhibition for <i>B. subtilis</i> (Gram-positive) bacteria (12.33 mm), and a lower level was observed for <i>E. coli</i> (Gram-negative) bacteria (8.76 mm).5. The ability to inhibit cancer cell lines of varying degrees with IC50 values &gt;500 µg/mL on 10 kinds of cancer cell lines.