Integrated strategies to improve the quality of wheat end-products: optimization of processes and development of functional food. Innovative technologies applied to baked goods for the improvement of processes and the development of functional foods were performed. In particolar, a study was conducted on sanitizing treatments in order to reduce the microbial contamination (spoilage yeasts) on the finished product. The aim was to evaluate the effects of solution of peroxide and colloidal silver treatment, in comparison with the conventional fumigating treatment, on the incidence of chalk defects of the market baked goods. The strains have been isolated and sequenced for species/specification identification. To the reduction of the plastic waste in food industries, another line of research was carried out on the thickness of the food packaging applied to the baked good. In particular, samples of bread are compared with two types of packaging machines and the differences (chemical-physical, sensory and textural attributes) have been monitored up to 100gg of shelf-life. Same topic of process optimization, including almond byproducts, trials were made by blanced water and almond skins dried at different thermal conditions. Industrial byproducts have been characterized to develop semi-finished products for functional food (cookies). In addition, industrial tests were performed for the development of functional foods. A low-salt bread with salt content according to the fixed limits of REG (EU) 1924/2006 on nutrition and health claims was characterized. It was developed an amylase and lipase formulation for staling reduction and the improvement of the shelf life. Chemical-physical, rheological parameters and the microstructure evaluations were carried out to monitor the effects of the enzymes on the finished product. The physico-chemical properties and sensory profile of durum wheat Dittaino PDO (Protected Designation of Origin) bread and quality of re-milled semolina used for its production were studied. The research activities of this PhD program were performed to the food industry of bakery products located in Assoro (EN, Italy) and at the almond processing industry located in Floridia (SR, Italy).
Strategie integrate per il miglioramento qualitativo di prodotti da forno a base di grano: ottimizzazione dei processi produttivi e sviluppo di alimenti funzionali. Sono state sviluppate tecnologie applicate ai prodotti da forno per il miglioramento dei processi produttivi e lo studio di alimenti funzionali. In particolare è stato condotto uno studio su trattamenti sanitizzanti al fine di ridurre le contaminazioni microbiche (soprattutto lieviti) sul prodotto finito. E’ stata proposta una soluzione a base di perossido e argento colloidale in confronto con soluzioni fenoliche OPP. Il monitoraggio, biennale, è stato svolto nelle celle di lievitazione e raffreddamento del prodotto finito (pane di grano duro) ed è stata rilevata l’incidenza microbica percentuale. I ceppi sono stati isolati e sequenziati per l’identificazione specie/specifica. Per la riduzione degli scarti di natura plastica nel settore alimentare sono state eseguite prove sullo spessore del packaging alimentare applicato ai prodotti da forno. In particolare sono stati comparati campioni di pane confezionato con due tipologie di macchine confezionatrici e le differenze (chimico-fisiche, sensoriali e strutturali) sono state monitorate fino a 100gg di shelf-life. Sempre nella tematica miglioramento dei processi produttivi, sono stati caratterizzati gli scarti industriali della mandorlicoltura (cuticole e acque di pelatura) per sviluppare semilavorati per produrre alimenti funzionali, in particolare biscotti. Inoltre sono state svolte prove industriali per la messa a punto di alimenti funzionali. E’ stato sviluppato un pane iposodico con livelli di sale secondo la normativa in vigore (REG 1924/2006) che è stato caratterizzato dal punto di vista morfologico, chimico e sensoriale. E’ stata messa a punto una miscela enzimatica a base di amilasi e lipasi per la riduzione dello staling e il miglioramento della shelf life del pane industriale di grano duro. Valutazioni chimico-fisiche, della texture e della microstruttura sono state condotte per monitorare gli effetti degli enzimi sul prodotto finito. Infine è’ stata eseguita la caratterizzazione chimico fisica e sensoriale della Pagnotta del Dittaino DOP e della semola utilizzata per produrla. Sono stati esaminati campioni di tipo artigianale e industriale. Le attività di ricerca del presente programma di dottorato sono state svolte presso industria alimentare di prodotti da forno sita in provincia di Enna e presso industria lavorazione mandorle sita in provincia di Siracusa
Giannone, V.Integrated Strategies to Improve the Quality of Wheat End-Products: Optimization of Processes and Development of Functional Food.
Integrated Strategies to Improve the Quality of Wheat End-Products: Optimization of Processes and Development of Functional Food
Giannone, Virgilio
Abstract
Integrated strategies to improve the quality of wheat end-products: optimization of processes and development of functional food. Innovative technologies applied to baked goods for the improvement of processes and the development of functional foods were performed. In particolar, a study was conducted on sanitizing treatments in order to reduce the microbial contamination (spoilage yeasts) on the finished product. The aim was to evaluate the effects of solution of peroxide and colloidal silver treatment, in comparison with the conventional fumigating treatment, on the incidence of chalk defects of the market baked goods. The strains have been isolated and sequenced for species/specification identification. To the reduction of the plastic waste in food industries, another line of research was carried out on the thickness of the food packaging applied to the baked good. In particular, samples of bread are compared with two types of packaging machines and the differences (chemical-physical, sensory and textural attributes) have been monitored up to 100gg of shelf-life. Same topic of process optimization, including almond byproducts, trials were made by blanced water and almond skins dried at different thermal conditions. Industrial byproducts have been characterized to develop semi-finished products for functional food (cookies). In addition, industrial tests were performed for the development of functional foods. A low-salt bread with salt content according to the fixed limits of REG (EU) 1924/2006 on nutrition and health claims was characterized. It was developed an amylase and lipase formulation for staling reduction and the improvement of the shelf life. Chemical-physical, rheological parameters and the microstructure evaluations were carried out to monitor the effects of the enzymes on the finished product. The physico-chemical properties and sensory profile of durum wheat Dittaino PDO (Protected Designation of Origin) bread and quality of re-milled semolina used for its production were studied. The research activities of this PhD program were performed to the food industry of bakery products located in Assoro (EN, Italy) and at the almond processing industry located in Floridia (SR, Italy).File | Dimensione | Formato | |
---|---|---|---|
tesi Giannone VIRGILIO_XXX ciclo 07022018.pdf
accesso aperto
Dimensione
2.71 MB
Formato
Adobe PDF
|
2.71 MB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.