Faculty of Chemistry, Biotechnology and Food Science (KBM): Recent submissions
Now showing items 661-680 of 1051
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Natural genetic transformation: development of a new genetic tool for Streptococcus thermophilus
(PhD Thesis;2010:16, Doctoral thesis, 2010)Lactic acid bacteria (LAB) have been used in fermentation of foods for hundreds or even thousands of years. During the last decade the genome sequences of a number of commercially important LAB species and strains have ... -
Molecular mechanisms of pneumococcal fratricide
(PhD Thesis;2010:13, Doctoral thesis, 2010)The bacterium Streptococcus pneumoniae is endowed with the ability to take up naked DNA from the surroundings and recombine this DNA into the chromosome. This property, termed competence for natural genetic transformation, ... -
An explorative study of Enterococcus faecalis transcriptional responses to infection-relevant growth environments
(PhD Thesis;2010:10, Doctoral thesis, 2010)Enterococcus faecalis is commonly found in the gastrointestinal tract of humans. It is also an opportunistic pathogen and one of the leading causes of nosocomial infections worldwide. The treatment of E. faecalis infections ... -
Studies of proteins involved in environmental responses of Enterococcus faecalis V583
(PhD Thesis;2011:58, Doctoral thesis, 2011)Enterococcus faecalis has traditionally been considered a harmless inhabitant of the gastrointestinal tract of mammals. However, in the past decade E. faecalis has become a major cause of infections in hospitalized patients. ... -
Consumer perception and acceptance of calorie-reduced dairy products
(PhD Thesis;2010:03, Doctoral thesis, 2010)This thesis is a part of the research project ‘‘Low energy products and consumer preferences”, financed by the Research Council of Norway (NFR) through Grant 167928/I10. The thesis is based on three experiments. Consumers’ ... -
Dissecting molecular properties of honey bee vitellogenin : a protein acting at the intersection between social behavior and aging
(PhD Thesis;2011:59, Doctoral thesis, 2011)Vitellogenin is a central honey bee (Apis mellifera) life-history regulator. This thesis represents an initiative to study this protein, which affects aging and task-division of the bees, at the molecular level. I have ... -
Application of Bayesian calibration for propagation of uncertainty in dynamic models
(PhD Thesis;2010:8, Doctoral thesis, 2010)The thesis is about quantification of uncertainties in complex models. Models are built to describe, explain or predict a real world outcome. It is well known that models are related with uncertainty, and that uncertainties ... -
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 ... -
Natural transformation in Streptococcus thermophilus : Regulation autolysis and ComS*-controlled gene expression.
(PhD Thesis;2011:67, Doctoral thesis, 2011)Natural genetic transformation has been extensively studied in Streptococcus pneumoniae for generations, and much has been learned about this important phenomenon since its discovery by Frederick Griffith in 1928. In ... -
Control of cheese quality – strategies and methods for delivery of consistent sensory product quality at the point of consumption
(PhD Thesis;2011:68, Doctoral thesis, 2011)An effective approach to quality control is an important issue for a food producer, as consumers expect consistent delivery of products. Two important strategies for control of food product end quality was discussed in ... -
Evaluating nuclear magnetic resonance (NMR) as a robust absolute reference method for water holding capacity (WHC) of pork meat
(PhD Thesis;2016:64, Doctoral thesis, 2017-01-05)Water holding capacity (WHC) is among the most important quality traits of meat. However, the mechanism behind WHC continues to be poorly understood and online measurement has yet to be achieved in the meat industry. The ... -
Natural and lactic acid bacteria fermentations of pastes of soybeans and soybean-maize blends : effect on nutritional quality, microbial diversity, food safety and consumer acceptance
(PhD Thesis;2014:84, Doctoral thesis, 2014)Traditional Malawian diets are predominantly maize-based and have been associated with widespread inadequate intakes of several nutrients. In addition to maize, legumes are an important source of protein and other nutrients ... -
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 ... -
Principal components of buffalo and cow milk from Bangladesh : proteolysis and lipolysis of buffalo, cow and omega-3 enriched milk by ex vivo digestion
(PhD Thesis;2014:52, Doctoral thesis, 2014)The aim of the study was to characterize and compare the Bangladeshi buffalo, Holstein cross, Indigenous cattle and Red Chittagong Cattle milk based on milk’s principal components, and further to investigate the proteolysis ... -
Discovery and characterization of cellulose-active lytic polysaccharide monooxygenases
(PhD Thesis;2014:62, Doctoral thesis, 2014)The efficient depolymerization of lignocellulosic biomass to fermentable sugars by enzymatic hydrolysis is a key step in the transition towards a more environmentally friendly and sustainable bio-economy. However, the ... -
Utilization of dried roselle calyces extract in fruit juice processing
(PhD Thesis;2014:31, Doctoral thesis, 2014)There has been an increased consumption of fruit juice as consumers have become aware of the nutritional and health benefits of fruit juices. This increased consumption goes together with the growth of varieties of fruit ... -
Cordia africana (Lam.) fruit and its uses
(PhD Thesis;2014:2, Doctoral thesis, 2016-11-24)There are several underutilised and neglected species used as food in the world. These food sources are under threat of disappearing and their knowledge base being forgotten. One such plant is the Cordia africana. Though ... -
Genome-wide transcriptional profiling of Clostridium species during sporulation
(Master thesis, 2016-11-22)Dormancy strategies utilized by bacteria contribute to their survival under adverse conditions, as well as persistence and transmission between hosts. The formation of endospores produces some of the most resilient forms ... -
En QuEChERS metode for analyse av utvalgte legemidler i avløpsvann
(Master thesis, 2016-11-22)Legemiddelrester og produkter til personlig pleie, PPCP, samt deres metabolitter, har de senere årene gitt grunn til bekymring. Dette fordi disse stoffene er identifisert i blant annet avløpsvann, overflatevann og sedimenter, ... -
Calorie and protein restriction in mammals : a review and comparison on respect to aging
(Master thesis, 2016-11-21)Calorie restriction (CR), a 10-50% (typically 30%) reduction in calorie intake with adequate nutrients, is the most widely accepted intervention to delay aging and increase lifespan in many model organisms. Recently, there ...