Marine Collagen: From Fish Waste to Versatile Healthcare Resource | Research

The takeaway

Marine collagen from fish processing waste has emerged as a sustainable resource for tissue engineering, wound healing, dietary supplements, and cosmetics, with growing preclinical and clinical evidence for bioactive properties.

Fish waste to healthcare
Marine collagen converts low-cost fish processing byproducts into high-value healthcare products

What the researchers found

Marine collagen and its derivatives (gelatin, peptides) show versatile bioactive properties including potential for tissue engineering, wound healing, dietary supplementation for weight management and glycemic control, with growing preclinical and clinical evidence.

Why it matters

Marine collagen converts polluting fish waste into high-value healthcare products while avoiding the disease transmission and religious/cultural concerns associated with mammalian (bovine/porcine) collagen.

The numbers in context

Sources: fish skin and scales; applications in tissue engineering, supplements, cosmetics; bioactive: antioxidant, glycemic control, weight management

How the study worked

Comprehensive literature review covering marine collagen extraction, physicochemical properties, healthcare applications (food, medicine, pharmaceutics, cosmetics), preclinical and clinical evidence, and market analysis.

Who was studied

Not applicable (narrative review)

What this study cannot tell us

Review format — no new data. Marine collagen has lower denaturation temperature than mammalian collagen, limiting some applications. Many bioactive claims remain at preclinical stages. Product standardization challenges exist.

How to read the evidence

Moderate — comprehensive review covering preclinical and clinical studies, but many specific applications remain at early evidence stages.

When this study was published

Published in 2020; the marine collagen market has continued to grow significantly since publication.

The bigger picture

Marine collagen represents a convergence of sustainability, waste reduction, and healthcare innovation — transforming a pollution problem into a growing industry while addressing increasing consumer demand for non-mammalian collagen sources.

Questions still open

How does marine collagen peptide bioactivity compare head-to-head with bovine or porcine collagen peptides?
Can marine collagen fully replace mammalian collagen in medical-grade applications?
What processing methods best preserve bioactive properties of marine collagen peptides?

Common questions

Is marine collagen as effective as bovine collagen?

Marine collagen peptides show similar bioactive properties to mammalian collagen in many applications. However, marine collagen has a lower melting point and different amino acid profile, which may matter for some medical-grade uses but not for dietary supplements.

What parts of fish are used for collagen?

Fish skin, scales, fins, and bones — all typically discarded as waste during fish processing — are rich sources of type I collagen. Using these byproducts reduces environmental pollution while creating valuable healthcare products.

Read the original research

Marine collagen and its derivatives: Versatile and sustainable bio-resources for healthcare.

Materials science & engineering. C, Materials for biological applications, 113, 110963

View on PubMed ↗Publisher’s paper ↗

Citation

Salvatore, Luca; Gallo, Nunzia; Natali, Maria Lucia; Campa, Lorena; Lunetti, Paola; Madaghiele, Marta; Blasi, Federica Stella; Corallo, Angelo; Capobianco, Loredana; Sannino, Alessandro. (2020). Marine collagen and its derivatives: Versatile and sustainable bio-resources for healthcare.. Materials science & engineering. C, Materials for biological applications, 113, 110963. https://doi.org/10.1016/j.msec.2020.110963