Extraction and characterization of collagen from red snapper (Lutjanus spp.) scales

Abstract

The increasing demand for sustainable and alternative collagen sources has led to a focus on fish by-products, particularly fish scales, as viable materials for collagen extraction. In this study, collagen was extracted from red snapper (Lutjanus spp.) scales, following an established pepsin-soluble extraction protocol. Approximately 7 grams of collagen powder were obtained from 250 grams of dried scales. Fourier Transform Infrared (FTIR) spectroscopy was used to characterize the extracted collagen and confirmed the presence of Type I collagen, characterized by its distinct amide peaks. The extracted collagen has potential for diverse applications, including skin regeneration, wound healing, and anti-aging cosmetics. The findings highlight the potential of red snapper scale collagen as a sustainable alternative to mammalian sources. This study contributes to waste reduction in fisheries and supports the development of innovative, eco-friendly biomaterials for industrial use.