Characterization and Potential Use of Cuttlefish Skin Gelatin Hydrolysates Prepared by Different Microbial Proteases

Figure 2

Antioxidant activity using (a) DPPH scavenging, (b) reducing power assay of CSGHs at different concentrations and (c) gel electrophoresis pattern of the plasmid pCRII TOPO incubated with Fenton’s reagent in the presence and absence of CSGHs.

(a)

(b)

(c) Lane 1: untreated control, native pCRII TOPO DNA (0.5 μg); lane 2: DNA sample incubated with Fenton’s reagent; lanes 3, 4, 5, and 6: Fenton’s reagent + DNA + 2 mg CSGHs, alcalase-CSGH, NH1-CSGH, A21-CSGH, and A26-CSGH, respectively.