Marine collagen
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Marine Collagen Extraction Techniques and Sustainability
Marine collagen is primarily sourced from fish and other marine organisms, especially from by-products like skin, scales, and bones, which make up a significant portion of fish processing waste Laasri2023Coppola2020Salvatore2020+1 MORE. Extraction methods such as acidic, enzymatic, pepsin-soluble, and ultrasound-assisted techniques are commonly used, with enzymatic and ultrasound-assisted extractions often providing higher yields and better quality collagen Laasri2023Barzkar2023Shaik2024. These methods are considered more environmentally friendly and align with zero-waste strategies, as they utilize materials that would otherwise be discarded, reducing environmental impact and supporting sustainability goals Laasri2023Coppola2020Salvatore2020.
Physicochemical and Bioactive Properties of Marine Collagen
Marine collagen is valued for its excellent biocompatibility, low antigenicity, and high bioactivity, making it suitable for a wide range of applications Laasri2023Barzkar2023Salvatore2020+2 MORE. It is water-soluble, metabolically compatible, and possesses unique structural properties depending on the marine source and extraction method Barzkar2023Silva2014Fassini2021. Collagen-derived peptides from marine sources have demonstrated antioxidant, antihypertensive, and antimicrobial activities, as well as the ability to promote cell adhesion and tissue regeneration Laasri2023Barzkar2023Salvatore2020+2 MORE.
Applications in Healthcare, Cosmetics, and Food Industries
Marine collagen is widely used in pharmaceuticals, cosmetics, food, nutraceuticals, and biomedical devices due to its safety and functional properties Barzkar2023Coppola2020Salvatore2020+3 MORE. In healthcare, it is utilized for wound healing, tissue engineering, and bone regeneration, showing effectiveness in promoting skin repair, delaying aging, and supporting bone health Barzkar2023Salvatore2020Geahchan2022+1 MORE. In the food and supplement industries, marine collagen and its hydrolysates are used for their nutritional and functional benefits, including dietary supplements aimed at weight management and glycemic control Salvatore2020Islam2025. The cosmetic industry leverages marine collagen for its skin-rejuvenating and anti-aging effects Laasri2023Barzkar2023Salvatore2020+1 MORE.
Advantages Over Terrestrial Collagen Sources
Marine collagen offers several advantages over traditional bovine and porcine sources. It avoids issues related to transmissible diseases, religious restrictions, and allergenicity that are sometimes associated with land animal collagen Coppola2020Silva2014Xu2021+1 MORE. Additionally, marine collagen is more sustainable due to the abundance of raw materials from seafood industry by-products and the lower environmental impact of its extraction Laasri2023Coppola2020Salvatore2020+1 MORE.
Challenges and Future Directions
Despite its benefits, marine collagen faces challenges such as unpleasant odor, flavor, color, inconsistent quality, and limited supply . Future research is focused on improving extraction yields, enhancing sensory properties, and developing advanced delivery systems to increase bioavailability and functionality Islam2025Silva2014. Integrated processing technologies and quality control measures are also needed to ensure consistent and high-quality marine collagen products Barzkar2023Islam2025.
Conclusion
Marine collagen is a versatile, sustainable, and highly functional biomaterial with broad applications in healthcare, cosmetics, and food industries. Its extraction from marine by-products supports environmental sustainability, while its unique properties offer significant advantages over terrestrial sources. Ongoing research aims to address current challenges and expand the potential of marine collagen in various sectors Laasri2023Barzkar2023Coppola2020+7 MORE.
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