Table 3.

The in vitro antioxidant activities of the positive control (vitamin C (VC)) and CO2-SFE of black coral extract (BCE) by DPPH radical scavenging.

Sample	Mean ± SD
Blank	1.247 ± 0.004
VC, 0.01 mM (1.7 mg/mL)	0.045 ± 0.003 *
BCE, 2.5 μL (875 μg/μL)	0.668 ± 0.016 *
BCE, 5 μL (875 μg/μL)	0.368 ± 0.018 *
BCE, 10 μL (875 μg/μL)	0.171 ± 0.008 *
BCE, 20 μL (875 μg/μL)	0.102 ± 0.007 *
BCE, 40 μL (875 μg/μL)	0.085 ± 0.004 *
BCE, 80 μL (875 μg/μL)	0.074 ± 0.003 *

^*P < 0.05, compared with blank control.