The present work aims to contribute to the microbiological knowledge of Súr hvalur, focusing on the isolation and characterization of the yeasts present, with the aim of understanding their diversity and potential functions in the context of traditional fermentation. To this end, 27 eumycetic cultures were isolated, purified and identified from 8 samples of Súr hvalur. All microbial cultures were subjected to metabolic characterization for the determination of the capacity to produce extracellular enzymes, including urease, amylase, pectinase, β-glucosidase, esterase and lipase. In addition, all microbial isolates were evaluated for their tolerance to unfavorable environmental conditions, such as high salt concentrations, osmotic stress and pH variations.
Il presente lavoro si propone di contribuire alla conoscenza microbiologica di Súr hvalur, concentrandosi sull’isolamento e la caratterizzazione dei lieviti presenti, con l’obiettivo di comprenderne la diversità e le potenziali funzioni nel contesto della fermentazione tradizionale. A tale scopo, 27 colture eumicetiche sono state isolate, purificate e identificate da 8 campioni di Súr hvalur. Tutte le colture microbiche sono state sottoposte a caratterizzazione metabolica per la determinazione della capacità di produzione di enzimi extracellulari, tra cui ureasi, amilasi, pectinasi, β-glucosidasi, esterasi e lipasi. Inoltre, tutti gli isolati microbici sono stati valutati per definire la tolleranza a condizioni ambientali sfavorevoli, quali elevate concentrazioni saline, stress osmotico e variazioni di pH.
CARATTERIZZAZIONE DI LIEVITI ISOLATI DA SÚR HVALUR
SIMONETTI, GRETA
2024/2025
Abstract
The present work aims to contribute to the microbiological knowledge of Súr hvalur, focusing on the isolation and characterization of the yeasts present, with the aim of understanding their diversity and potential functions in the context of traditional fermentation. To this end, 27 eumycetic cultures were isolated, purified and identified from 8 samples of Súr hvalur. All microbial cultures were subjected to metabolic characterization for the determination of the capacity to produce extracellular enzymes, including urease, amylase, pectinase, β-glucosidase, esterase and lipase. In addition, all microbial isolates were evaluated for their tolerance to unfavorable environmental conditions, such as high salt concentrations, osmotic stress and pH variations.File | Dimensione | Formato | |
---|---|---|---|
tesi_Simonetti_definitiva.pdf
embargo fino al 15/07/2028
Dimensione
932.76 kB
Formato
Adobe PDF
|
932.76 kB | Adobe PDF |
I documenti in UNITESI sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
https://hdl.handle.net/20.500.12075/22262