Table 2. Antioxidant activity determined as free ABTS radicals scavenging capacity and FRAP of Rapana venosa GAG extract, before and after digestion with heparinase III (Hep III) and chondroitinase ABC (Chase ABC).

The results were expressed as mean ± SD (n = 6).

Sample	Free ABTS radical scavenging capacity (mM TE/g d.w.)	FRAP (mM Fe (II)/g d.w.)
R. venosa GAG extract	47.05 ± 3.27	10.25 ± 0.36
GAG extract + Hep III	15.09 ± 1.56	9.66 ± 0.19
GAG extract + Chase ABC	27.03 ± 2.28	6.08 ± 0.27