Now showing items 1-20 of 40
Casas Roqueta, Isabel (Date of defense: 2010-07-08)
L'ús d'esperma criopreservada en la inseminació artificial (IA) d'espècies d'interès productiu permet un major control sanitari i la creació de bancs de germoplasma d'alt valor genètic, entre d'altres avantatges. En el ...
Zamora Rodríguez, Lucero M. (Date of defense: 2003-11-20)
La sangre obtenida en el matadero es un producto altamente contaminado que requiere un procesamiento inmediato si se pretende utilizarla como insumo alimentario en la fabricación de productos destinados al consumo humano. ...
Hereu Soms, Anna (Date of defense: 2014-09-19)
The present doctoral dissertation deals with the study of the effect of food preservation technologies, such as high pressure (HP) treatments and biopreservation with nisin, on the behaviour of Listeria monocytogenes during ...
Briz González, Maria Dolors (Date of defense: 1994-05-17)
El present treball analitza la morfologia espermàtica de l'ejaculat de Sus domesticus, la histologia del conducte epididimari i la qualitat de l'esperma epididimari. El material d'estudi prové de mascles reproductors porcins ...
Mora Pons, Isabel (Date of defense: 2013-12-12)
Bacillus subtilis and related species have strong interest in agriculture because several strains are biocontrol agents of plant diseases, which have been recognized as biosafe. In this work, a selective enrichment procedure ...
Gionchetta, Giulia (Date of defense: 2019-10-25)
Hydrological drought is a process of natural desiccation mainly due to large shortage of rainfall events. Reduced precipitations and prolonged droughts are spreading worldwide and threaten the integrity of aquatic ...
Pascual Camps, Mònica (Date of defense: 2003-05-23)
Una soca de Lactobacillus salivarius resistent a la rifampicina, CTC2197, es va assajar com a probiòtic en pollastres, estudiant la seva capacitat de prevenir la colonització de Salmonella enteritidis C-114 en pollastres. ...
Ferre Malagon, Rafael (Date of defense: 2010-07-23)
Aquesta tesi doctoral està basada en el desenvolupament de nous agents antimicrobians derivats del pèptid híbrid cecropina A-melitina WKLFKKILKVL-NH2 (Pep3) que siguin sostenibles i útils per al control de malalties de ...
Malagón Rodríguez, Marta (Date of defense: 2019-12-13)
This thesis aims to develop a new non-invasive tool based on faecal bacterial markers for the early detection of colorectal cancer, which is capable of detecting precancerous lesions before the onset of clinical signs. ...
Noguerola Solà, Imma (Date of defense: 2016-07-29)
This doctoral thesis studies the abundance, diversity, seasonal dynamics and activity of Epsilonproteobacteria in a meromictic basin of Lake Banyoles during three year cycles. We applied a complementary array of molecular ...
López Siles, Mireia (Date of defense: 2016-01-25)
In this PhD thesis Faecalibacterium prausnitzii populations of patients with gut disease and healthy individuals have been characterized. First, isolates from healthy volunteers have been phenotypically characterised, ...
Sancho Badell, Sílvia (Date of defense: 2002-12-18)
En el presente estudio se analizan los efectos de los fotoperiodos ambientales de otoño e invierno y los fotoperiodos experimentales de 24, 12 y 0 horas de luz artificial sobre la calidad del semen de machos reproductores ...
Kassotaki, Elissavet (Date of defense: 2018-09-07)
Pharmaceutically active compounds (PhACs) and endocrine disrupting compounds (EDCs) can pose a significant risk to the environment and human health, undermining prosperity. Current wastewater treatment plants (WWTPs) cannot ...
Mallorquí Fernández, Noemí (Date of defense: 2003-12-11)
El present treball es centra en l'estudi a diferents nivells dels carotenoides de les espècies marrons de Bacteris Verds del Sofre (GSB, de l'anglès Green Sulfur Bacteria). L'objectiu global ha estat el d'esbrinar quina ...
Àvila Izquierdo, Núria (Date of defense: 2017-05-26)
Autotrophic and heterotrophic microorganisms are two essential functional units in the microbial food web of aquatic ecosystems. They play a key role in nutrient cycling and carbon flow and influence the structure, composition ...
Compte Port, Sergi (Date of defense: 2018-07-03)
Archaea are abundant in extreme environments but they are also a prevalent component of microbial communities in soils, marine or freshwater plankton and sediments. Many studies highlighted the prominent role of marine ...
Austrich i Comas, Anna (Date of defense: 2024-04-03)
This doctoral thesis focuses on the study of the behavior of foodborne pathogens during the production process and/or storage of dry-cured meat products, including chicken-based fermented sausages and pork dry-cured ham. ...
Sànchez Melsió, Alexandre (Date of defense: 2015-06-05)
Nowadays, the combination of the autotrophic nitrification together with heterotrophic denitrification is the most common process for N-removal in the WWTPs. However, when the C:N ratio is low, this two-step process does ...
Borrego i Moré, Carles (Date of defense: 1996-11-15)
Green bacteria possess one of the most complexes antenna systems within the group of the photosynthetic microorganisms. One reason for this complexity is the high diversity of pigments antenna, the bacteriochlorophylls ...
Cáliz Gelador, Joan (Date of defense: 2011-12-13)
Pollution by toxic compounds is one of the most relevant environmental damages to ecosystems produced by human activity and, therefore, it must be considered in environmental protection and restoration of contaminated ...