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Circular animal protein hydrolysates: a comparative approach of functional properties

2025-07-01Research article Open access
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dc.contributor.authorMonteiro, Marta
dc.contributor.authorRodrigues-dos-Santos, Luciano
dc.contributor.authorFilipa-Silva, Andreia
dc.contributor.authorMarques, Diana A.
dc.contributor.authorPintado, Manuela
dc.contributor.authorAlmeida, André
dc.contributor.authorValente, Luisa M. P.
dc.date.accessioned2025-08-13T08:32:30Z
dc.date.available2025-08-13T08:32:30Z
dc.date.issued2025-07-01
dc.description.abstractThe growing demand for nutraceuticals has driven interest in upcycling low-value proteins from processed animal by-products and insect larvae into functional protein hydrolysates. This study evaluated five such hydrolysates in comparison to a high-value commercial reference (CPSP90), assessing the proximate composition, amino acid profile, molecular weight distribution, antioxidant activity, and bacterial growth dynamics. Results revealed a wide variability in the composition and bioactivity, driven by the raw material and processing conditions. All hydrolysates displayed a medium to high crude protein content (55.1–89.5% DM), with SHARK being the most protein-rich. SHARK and SWINE hydrolysates were particularly rich in collagenic amino acids, while FISH and CPSP90 contained higher levels of essential amino acids. FISH and INSECT demonstrated the strongest antioxidant activity, with INSECT also showing the highest protein solubility. INSECT and SWINE further displayed mild, selective antibacterial effects, indicating a potential for disease mitigation. Conversely, SHARK and FISH supported opportunistic bacteria growth, suggesting a potential use as nitrogen sources in microbial media. These findings highlight the nutritional and functional versatility of animal-derived protein hydrolysates and support their integration into sustainable feed strategies within a circular bioeconomy.eng
dc.identifier.doi10.3390/antiox14070782
dc.identifier.eid105011700768
dc.identifier.issn2076-3921
dc.identifier.other6de0f55e-b159-433e-886e-f30375aa1c2b
dc.identifier.pmcPMC12291862
dc.identifier.pmid40722886
dc.identifier.urihttp://hdl.handle.net/10400.14/54487
dc.identifier.wos001539598300001
dc.language.isoeng
dc.peerreviewedyes
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectAnimal nutrition
dc.subjectBioactive peptides
dc.subjectCircular bioeconomy
dc.subjectFunctional ingredients
dc.subjectProtein hydrolysis
dc.titleCircular animal protein hydrolysates: a comparative approach of functional propertieseng
dc.typeresearch article
dspace.entity.typePublication
oaire.citation.issue7
oaire.citation.titleAntioxidants
oaire.citation.volume14
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85

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