The PhD research project, funded by the PNRR project “ON-Foods” (PE0000003), focused on the study of alternative protein sources and the development of spectroscopic methods for the quantification of potentially toxic compounds. The protein composition and quality of three Novel Food insects (Acheta domesticus, Tenebrio molitor, and Locusta migratoria), as well as an olive seed protein hydrolysate, were evaluated using chromatographic methods and static and dynamic digestion models (INFOGEST 2.0 and Gastromachine). All insects showed a complete amino acid profile, with protein digestibility ranging from 60 to 80% and DIAAS values in the range of 50–70%. Approximately 34% of the olive seed hydrolysate’s peptides were found to be stable, bioaccessible, and partially bioavailable. The development and validation (by comparison with a chromatographic method) of a MicroNIR spectroscopy-based method for the qualitative and quantitative analysis of caffeine in energy products enabled the rapid identification of the presence of the analyte in the matrices, but did not allow accurate quantification due to matrix effects of the analyzed samples.
Il progetto di ricerca di dottorato, finanziato dal progetto PNRR “ON-Foods” (PE0000003) ha riguardato sia lo studio di fonti proteiche alternative che lo sviluppo di metodi spettroscopici per la quantificazione di sostanze potenzialmente tossiche. Sono state valutate composizione e qualità proteica di tre insetti Novel Food (Acheta domesticus, Tenebrio molitor e Locusta migratoria) e di un idrolizzato da semi di oliva mediante metodi cromatografici e modelli di digestione statica e dinamica (INFOGEST 2.0 e Gastromachine). Tutti gli insetti hanno mostrato un profilo amminoacidico completo, con digeribilità proteica tra 60 e l’80% e valori di DIAAS nel range di 50–70%. Il 34% circa di peptidi di idrolizzato di semi di oliva sono risultati stabili, bioaccessibili ed in parte biodisponibili. Lo sviluppo e validazione (per confronto con metodo cromatografico) di un metodo bassato sulla spettroscopia MicroNIR per analisi quali-quantitative di caffeina in prodotti energetici, ha permesso di identificare rapidamente la presenta dell’analiti nelle matrici, ma non di dosarlo in modo accurato a causa degli effetti matrice dei campioni analizzati.
SET-UP AND VALIDATION OF DIFFERENT APPROACHES TO INVESTIGATE NOVEL PROTEINS AND ENERGY PRODUCTS FOOD SECURITY
BARBERIS, MARTA
2026-05-13
Abstract
The PhD research project, funded by the PNRR project “ON-Foods” (PE0000003), focused on the study of alternative protein sources and the development of spectroscopic methods for the quantification of potentially toxic compounds. The protein composition and quality of three Novel Food insects (Acheta domesticus, Tenebrio molitor, and Locusta migratoria), as well as an olive seed protein hydrolysate, were evaluated using chromatographic methods and static and dynamic digestion models (INFOGEST 2.0 and Gastromachine). All insects showed a complete amino acid profile, with protein digestibility ranging from 60 to 80% and DIAAS values in the range of 50–70%. Approximately 34% of the olive seed hydrolysate’s peptides were found to be stable, bioaccessible, and partially bioavailable. The development and validation (by comparison with a chromatographic method) of a MicroNIR spectroscopy-based method for the qualitative and quantitative analysis of caffeine in energy products enabled the rapid identification of the presence of the analyte in the matrices, but did not allow accurate quantification due to matrix effects of the analyzed samples.| File | Dimensione | Formato | |
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TESI PhD_BARBERIS MARTA_UFFICIALE A4.pdf
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Descrizione: Tesi Dottorato Barberis Marta
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