This work analyzes collagen extracted from poultry and livestock bones, with the aim of assessing its potential as a functional and sustainable resource. These by-products, often considered waste in the supply chain, actually represent an abundant and renewable source of collagen, whose valorization fits within the principles of the circular economy. After describing the structural and functional characteristics of collagen and its derivatives (gelatin and hydrolysates), the study focused on the main extraction methods, including both conventional techniques and innovative approaches such as ultrasound, microwave, supercritical fluids, hydrothermal treatment and high pressure. In the absence of numerous studies specifically addressing poultry and bovine sources, research conducted on other animal by-products, particularly fish, was also considered in order to highlight transferable principles and technologies. The application section illustrated how collagen can be employed in different fields, from biomedical to food industries. Particular attention was given to collagen peptides, which, thanks to their bioactive peptides, are suitable for the formulation of functional foods and nutraceuticals. The case of the peptide-calcium chelate is particularly significant, as it combines nutritional benefits with the sustainable valorization of animal by-products. Overall, the work confirms that collagen derived from poultry and livestock bones represents a promising ingredient, capable of integrating innovation, sustainability, and human health.
Il presente lavoro analizza il collagene estratto da ossa di pollame e bestiame, con l’obiettivo di valutarne le potenzialità come risorsa funzionale e sostenibile. Tali sottoprodotti, spesso considerati scarti di filiera, rappresentano invece una fonte abbondante e rinnovabile di collagene, la cui valorizzazione si inserisce nei principi dell’economia circolare. Dopo una descrizione delle caratteristiche strutturali e funzionali del collagene e dei suoi derivati (gelatina e idrolizzati), la trattazione si è focalizzata sui principali metodi di estrazione, includendo sia tecniche convenzionali sia approcci innovativi come ultrasuoni, microonde, fluidi supercritici, idrotermolisi e alta pressione. In assenza di numerosi studi su pollame e bovino, sono stati presi in considerazione anche lavori condotti su altre fonti animali, in particolare pesce, per mettere in evidenza principi e tecnologie trasferibili. La parte applicativa ha mostrato come il collagene possa essere impiegato in ambiti diversi, dal settore biomedico a quello alimentare. Particolare attenzione è stata dedicata ai peptidi di collagene, che grazie alle loro proprietà bioattive si prestano alla formulazione di alimenti funzionali e nutraceutici. L’esempio del chelato peptide-calcio rappresenta un caso emblematico, capace di coniugare benefici nutrizionali e valorizzazione di sottoprodotti animali. Il lavoro conferma che il collagene da ossa di pollame e bestiame costituisce un ingrediente di grande potenziale, capace di integrare innovazione, sostenibilità e salute.
Collagene derivato da ossa di pollame e bestiame: caratteristiche, estrazione e impieghi
SCUDELLARO, LUCA
2024/2025
Abstract
This work analyzes collagen extracted from poultry and livestock bones, with the aim of assessing its potential as a functional and sustainable resource. These by-products, often considered waste in the supply chain, actually represent an abundant and renewable source of collagen, whose valorization fits within the principles of the circular economy. After describing the structural and functional characteristics of collagen and its derivatives (gelatin and hydrolysates), the study focused on the main extraction methods, including both conventional techniques and innovative approaches such as ultrasound, microwave, supercritical fluids, hydrothermal treatment and high pressure. In the absence of numerous studies specifically addressing poultry and bovine sources, research conducted on other animal by-products, particularly fish, was also considered in order to highlight transferable principles and technologies. The application section illustrated how collagen can be employed in different fields, from biomedical to food industries. Particular attention was given to collagen peptides, which, thanks to their bioactive peptides, are suitable for the formulation of functional foods and nutraceuticals. The case of the peptide-calcium chelate is particularly significant, as it combines nutritional benefits with the sustainable valorization of animal by-products. Overall, the work confirms that collagen derived from poultry and livestock bones represents a promising ingredient, capable of integrating innovation, sustainability, and human health.| File | Dimensione | Formato | |
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https://hdl.handle.net/20.500.12608/93964