Browsing Doctoral theses (KBM) by Title
Now showing items 48-67 of 122
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Garvicin KS, a bacteriocin with wide inhibitory spectrum and potential application
(PhD Thesis;2018:04, Doctoral thesis, 2018)In this study, we screened for bacteriocin producer(s) from a large collection of bacterial isolates (over 1800) obtained from raw milk using a panel of indicator strains of different bacterial species and genera. Fourteen ... -
Gene regulation and the emergence of phenotypes – a network approach
(PhD Thesis;2016:52, Doctoral thesis, 2018-05-03)The emergence of complex traits in living organisms has been of interest to biologists since the early days of biology. Domestication and breeding has resulted in the most remarkable transformations, such as the grass ... -
Health communication with adolescents and young adults to promote healthy eating
(PhD Thesis;2016:30, Doctoral thesis, 2018-05-03)Enhancing health communication with adolescents and young adults for health promotion, including a healthier diet, is essential. Nutrition labeling, applications (apps), and school environment are three channels for health ... -
Identification of androstenone sensitive subjects and their evaluation of different androstenone and skatole tainted meat products
(PhD Thesis;2011:12, Doctoral thesis, 2011)Castration of entire male pigs is widely used in Norway to prevent the unpleasant odour/flavour that may occur in meat from boars. Castration of entire male pigs is expected to be prohibited in Norway (and in Europe) in ... -
Impact of dietary components and reactive oxygen species (ROS) in the colon and its microbiota in a low-grade inflammation mouse model
(PhD Thesis;2022:58, Doctoral thesis, 2022)Background: Various factors, including dietary components, the gut microbiota and host responses, are imperative for gut health. Optimal interactions between diet, gut microbiota and host are suggested to be important to ... -
Impact of milk protein genotypes on milk coagulation properties
(PhD Thesis;2017:74, Doctoral thesis, 2017-08-21)Evaluation of the milk coagulation properties is very important for the dairy industry, because it gives information on the processability of milk for both cheese and yoghurt/cultured milk. Milk that takes a shorter time ... -
Improving food waste anaerobic digestion : effects of digestate recirculation, post-treatment and methane-methane serial digestion
(PhD Thesis;2018:53, Doctoral thesis, 2018)Anaerobic digestion of food waste generates two valuable products: digestate and biogas. Today, most food waste in Norway is incinerated because it is collected as mixed waste. Hence, a shift from incineration to anaerobic ... -
In vitro characterization of commercial and potential probiotic lactic acid bacteria : interactions with human cells
(PhD Thesis;2014:92, Doctoral thesis, 2014)Lactic acid bacteria (LAB), especially bacteria belonging to the genus Lactobacillus, are recognized as common inhabitants of the human gastrointestinal tract and have received considerable attention in the last decades ... -
In vitro digestion of caprine whey proteins by human gastrointestinal juices : Effect of whey hydrolysates and peptides on in vitro cell responses
(PhD Thesis;2011:70, Doctoral thesis, 2011)The objectives of this thesis were to characterise human gastrointestinal juices, to identify peptides produced after in vitro digestion of whey proteins by these juices, and to screen for immunomodulating properties of ... -
Interplay between LPMOs and cellulases during enzymatic degradation of cellulose : effects of time, lignin, light and substrate concentration
(PhD thesis;2024:33, Doctoral thesis, 2024)The recent discovery of lytic polysaccharide monooxygenases (LPMOs) marked a paradigm shift in our understanding of enzymatic saccharification of lignocellulosic biomass. Under aerobic conditions, interactions between ... -
Investigating evolution of gene regulation with crossspecies comparative transcriptomics
(PhD Thesis;2017:101, Doctoral thesis, 2017)An essential ability of all lifeforms is to regulate the activity of its genes. This ability is what allows multicellular organisms to generate hundreds of completely different cells despite having the same genome. It is ... -
An investigation of the interplay between in situ hydrogen peroxide production and catalytic efficiency in lytic polysaccharide monooxygenase reactions
(PhD thesis;2022:27, Doctoral thesis, 2022)Lytic polysaccharide monooxygenases (LPMOs) are mono-copper enzymes that catalyze oxidative depolymerization of recalcitrant carbohydrate substrates, such as chitin and cellulose. LPMOs have received much attention from ... -
Kefir and kefir grains : diversity of chemical properties and microflora
(PhD Thesis;2012:30, Doctoral thesis, 2012)Kefir grains contain bacteria and yeasts embedded in a protein and polysaccharide matrix. They constitute the primary starter culture for kefir, a fermented milk drink with a complex sensory profile containing high amounts ... -
Kinetic investigations of the oxidative cleavage of oligomeric carbohydrates provide novel insights into the catalytic action of fungal lytic polysaccharide monooxygenases
(PhD Thesis;2021:61, Doctoral thesis, 2021)The lytic polysaccharide monooxygenases (LPMOs) are a recently discovered class of redoxactive mono-copper enzymes that catalyze the oxidative cleavage of glycosidic bonds in recalcitrant plant or chitin-based biomass, ... -
Knowledge-based methods handling complex dependency structures : applications to gene expression data
(PhD Thesis;2011:46, Doctoral thesis, 2011)Microarray gene expression data are usually associated with a large number of correlated variables measured on few samples. This type of data typically contain high levels of noise, and the biological signals may be difficult ... -
Lactobacillus sakei metabolism and diversity
(PhD Thesis;2010:21, Doctoral thesis, 2010)Lactic acid bacteria are associated with food fermentation, acidification and preservation. Lactobacillus sakei is an industrially important species mainly due to its ability to ferment and preserve meat. It is used as ... -
Langtransport og avsetning av organiske miljøgifter i nordvestlige Europa
(PhD Thesis;2014:90, Doctoral thesis, 2015-02-16)Persistent organic pollutant (POPs) are toxic compounds which typically consist of one or more groups of hydrocarbons that are aromatic or aliphatic as well as halogenated (chlorine, bromine, fluorine). POPs are normally ... -
Leveraging H2O2-fuelled activity of lytic polysaccharide monooxygenases in cellulase cocktails for improved bioprocessing of lignocellulosic biomass
(PhD Thesis;2022:29, Doctoral thesis, 2022)Rapid action is critical to reduce anthropogenic CO2 emissions in order to reach climate targets. Fossil fuel use in high emission sectors like the energy and chemical industry should therefore be reduced and replaced by ... -
Light-driven lytic polysaccharide monooxygenase (LPMO)-catalyzed solubilization of polysaccharides
(PhD Thesis;2022:38, Doctoral thesis, 2022)Lytic polysaccharide monooxygenases (LPMOs) are a recently discovered family of enzymes that catalyze oxidative cleavage of glycosidic bonds in insoluble polysaccharides at a liquid-solid interface. These enzymes are ... -
Linear multiresponse models : theoretical developments and applications in porcine
(PhD Thesis;2016:34, Doctoral thesis, 2018-05-03)The main topic of this PhD–thesis is how to minimize the prediction error for multi–response linear regression models. Two different applications are analysed, (i) bivariate response with missing data and (ii) image analysis ...