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Characteristics and antioxidant activities of pepsin-soluble collagen(PSC) from yellow goosefish( Lophius litulon) skins were investigated. PSC was characterized as a type I collagen, and its imino acid content was 193 residues/1 000 residues. PSC’s denaturation temperature was ~17.56°C and Fourier transform infrared spectra confirmed the presence of triple helices. Solubility analysis showed good solubility at acidic pH(1–6) or low Na Cl concentrations(≤2%). PSC showed scavenging activity against hydroxyl radicals and superoxide anions in a concentration-dependent manner. Furthermore, PSC could protect D-galactose-induced skin aging by significantly controlling malondialdehyde formation and improving the activity of superoxide dismutase, glutathione peroxidase, catalase, glutathione, and hydroxyproline. PSC may be a promising antioxidant in appropriate applications.
Characteristics and antioxidant activities of pepsin-soluble collagen (PSC) from yellow goosefish (Lophius litulon) skins were investigated. PSC was characterized as a type of I collagen, and its imino acid content was 193 residues / 1,000 residues. PSC’s denaturation temperature was ~ 17.56 ° C and Fourier transform infrared spectra confirmed the presence of triple helices. Solubility analysis showed good solubility at acidic pH (1-6) or low Na Cl concentrations (≤2%). PSC showed scavenging activity against hydroxyl radicals and superoxide anions in a concentration-dependent manner. PSC could protect D-galactose-induced skin aging by significantly controlling malondialdehyde formation and improving the activity of superoxide dismutase, glutathione peroxidase, catalase, glutathione, and hydroxyproline. PSC may be a promising antioxidant in appropriate applications .