Browsing Doctoral theses (KBM) by Issue Date
Now showing items 21-40 of 120
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Characterization of fecal lactic acid bacteria isolated from healthy Ethiopian infants : bacteriocin production and antibiotic suscepebility
(PhD Thesis;2011:55, Doctoral thesis, 2011)In this thesis lactic acid bacteria (LAB) were isolated from fecal samples of healthy Ethiopian infants, identified to species level, screened for bacteriocin production and tested for antibiotic susceptibility. Enterococci ... -
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 ... -
Studies on bacteriophages infecting lactic acid bacteria of industrial food fermentations
(PhD Thesis;2012:17, Doctoral thesis, 2012)Industrial food fermentations by lactic acid bacteria (LAB) are of great practical and economic importance. Bacteriophages (phages; bacterial viruses) infecting LAB can negatively affect quality, safety and value of the ... -
Mitochondrial oxygen consumption and myoglobin redox stability in beef
(PhD Thesis;2012:14, Doctoral thesis, 2012)Myoglobin is the main pigment in meat and exists in three predominant states; deoxymyoglobin (DMb), oxymyoglobin (OMb), and metmyoglobin (MMb). The different myoglobin states are dependent on the production of mitochondrial ... -
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 ... -
Multi-block methods for investigating consumer acceptance of food
(PhD Thesis;2013:67, Doctoral thesis, 2013)Today's researchers easily gather large amounts of data of different origin and type. In sensory and consumer studies the objective is the collection of data to better understand consumer behavior in the market. Statistical ... -
An examination of stress resistance and lifespan extension in the honey bee, Apis mellifera
(PhD Thesis;2013:48, Doctoral thesis, 2013)Many societies and health systems will soon face the unprecedented challenge of burgeoning aged populations. This demographic change will place pressure on social and medical systems, and give rise to questions concerning ... -
Full circle : genetics, biosynthesis, mode of action and resistance mechanisms of the bacteriocin garvicin ML
(PhD Thesis;2013:68, Doctoral thesis, 2013)Bacteriocins are ribosomally synthesized antimicrobial peptides, produced by many lactic acid bacteria, which show high promise as antimicrobial agents for use in both food industry and for medical applications. In this ... -
Antifungal activity of chitosan/chitooligosaccharides alone and in combination with chemical fungicides against fungal pathogens
(PhD Thesis;2013:12, Doctoral thesis, 2013)Botrytis cinerea Pers. ex Fr. is an economically important pathogen causing gray mold in over 200 plants species worldwide, including strawberry (Fragaria × ananassa). In Norway, gray mold is economically the most important ... -
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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
Bruk av laktase og standardisert melk til produksjon av Cottage Cheese
(Master thesis, 2015-07-01)Norwegian: Oppgaven omhandler småskalaproduksjon av Cottage Cheese ved bruk av laktase og standardisert melk. Det ble undersøkt effekt av 3 forsøksfaktorer på sammensetning og kvalitet til Cottage Cheese. Målet var å oppnå ... -
Diversity and functional aspects of cheese ripening bacteria
(PhD Thesis;2017:16, Doctoral thesis, 2016)Cheese traits can be seen in the context of metabolic activity of lactic acid bacteria (LAB) and their impact is important to obtain cheeses with specific characteristics. Accurate identification and characterisation of ... -
Prokaryote classification : method development and novel insight in 16S ribosomal RNA-based classification
(PhD Thesis;2016:95, Doctoral thesis, 2016)The main objective of this thesis is the improvement of prokaryotic classification based on the 16S ribosomal RNA. As a result of the shift in sequencing technology, generating enormous amounts of sequencing data and the ... -
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 ... -
Characterization of the infant gut microbiota mobilome
(PhD thesis;2017:37, Doctoral thesis, 2017)The human gut is densely populated with a wide diversity of bacteria. These bacteria can serve as a reservoirs for multiple Antibiotic Resistance (AR) genes that in turn are associated with wide range of Mobile Genetic ...