Articolo in rivista, 2022, ENG, 10.25345/C5D21RP0C

Simultaneous extraction of calcium phosphates and proteins from fish bones. Innovative valorisation of food by-products.

Alessio Adamiano, Stefania Scialla, Francesca Carella, Marialuisa Casella, Serena Camerini, Alessandra Quarta, Alexandra Muntiu, Francesca Ferrari, Alberto Vitali, Michele Iafisco, Clara Piccirillo

Institute of Science, Technology and Sustainability for Ceramics (ISSMC, former ISTEC), CNR NANOTEC, Institute of Nanotechnology, CNR SCITEC, Institute of Chemical Sciences and Technologies "Giulio Natta", Department of Engineering for Innovation, University of Salento, Campus Ecoteckne, Core Facilities, Istituto Superiore di Sanità,

By products of the fish industry can be a source of valuable molecules, with different technological applications. Fish bones, in particular, contain both organic and inorganic phases (collagen, other proteins and calcium phosphate respectively), with uses in cosmetics and biomedicine. Using the most common extraction protocols, only of the two phases can be extracted, while the other one is degraded. Investigation of the organic phase composition by proteomic related procedures followed by LC MS MS analysis, showed that the main extracted proteins were collagen in its different forms (especially alpha 1); some differences were observed between salmon and sea bream and between the methods of extraction. Biocompatibility tests performed on both organic and inorganic extracts (with fibroblast and osteoblast like cellular lines) showed their non toxicity and, hence, their suitability for cosmetic or biomedical applications.

Journal of cleaner production

Keywords

Waste valorisationCircular economyCalcium phosphatesCollagenFood by-products

CNR authors

Vitali Alberto, Quarta Alessandra, Iafisco Michele, Adamiano Alessio, Piccirillo Clara

CNR institutes

NANOTEC – Istituto di Nanotecnologia, ISSMC – Istituto di Scienza, Tecnologia e Sostenibilità per lo Sviluppo dei Materiali Ceramici, SCITEC – Istituto di Scienze e Tecnologie Chimiche "Giulio Natta"