Institutt for bioteknologi og matvitenskap
Recent Submissions
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Utilization of egg-laying hens (Gallus Gallus domesticus) for production of ingredients for human consumption and animal feed
(Journal article; Peer reviewed, 2020)Background In Norway, 3 million discarded egg-laying hens are destructed annually, which equals 1500 tons pure hen meat. Due to the slaughter methods used, this raw material is handled as a high-risk waste, while in reality ... -
Growth and spoilage metabolites production of a mesophilic Aeromonas salmonicida strain in Atlantic salmon (Salmo salar L.) during cold storage in modified atmosphere
(Journal article; Peer reviewed, 2020)Aims The aim of the study was to quantify the growth kinetic parameters and spoilage‐associated metabolites of an inoculated strain of Aeromonas salmonicida in pre‐rigor filleted Atlantic salmon (Salmo salar L.) stored ... -
Production of lumpfish (Cyclopterus lumpus L.) in RAS with distinct water treatments: Effects on fish survival, growth, gill health and microbial communities in rearing water and biofilm
(Peer reviewed; Journal article, 2020)Lumpfish (Cyclopterus lumpus L.) in Norway is currently produced in traditional flow-through systems (FTS). Hatcheries frequently show signs of bacterial infections, unstable microbial communities in the rearing water and ... -
Composition analysis and minimal treatments to solubilize 6 polysaccharides from the brown seaweed Laminaria digitata 7 for microbial growth of thermophiles
(Peer reviewed; Journal article, 2020)Brown macroalgae (Phaeophyta) hold high potential as feedstock for biorefineries due to high biomass productivity and carbohydrate content. They are, however, a challenging, unconventional feedstock for microbial refining ... -
Effects of reduced organic matter loading through membrane filtration on the microbial community dynamics in recirculating aquaculture systems (RAS) with Atlantic salmon parr (Salmo salar)
(Peer reviewed; Journal article, 2020)A key challenge in recirculating aquaculture systems (RAS) is the accumulation of particulate organic matter, especially the fine and colloidal fraction due to low removal efficiency of today's technology. The supply of ... -
Biodegradation of weathered crude oil in seawater with frazil ice
(Peer reviewed; Journal article, 2020)As ice extent in the Arctic is declining, oil and gas activities will increase, with higher risk of oil spills to the marine environment. To determine biotransformation of dispersed weathered oil in newly formed ice, oil ... -
Monitoring Parallel Robotic Cultivations with Online Multivariate Analysis
(Peer reviewed; Journal article, 2020)In conditional microbial screening, a limited number of candidate strains are tested at different conditions searching for the optimal operation strategy in production (e.g., temperature and pH shifts, media composition ... -
Transaldolase in Bacillus methanolicus: biochemical characterization and biological role in ribulose monophosphate cycle
(Peer reviewed; Journal article, 2020)Background The Gram-positive facultative methylotrophic bacterium Bacillus methanolicus uses the sedoheptulose-1,7-bisphosphatase (SBPase) variant of the ribulose monophosphate (RuMP) cycle for growth on the C1 carbon ... -
Translational regulation of periplasmic folding assistants and proteases as a valuable strategy to improve production of translocated recombinant proteins in Escherichia coli
(Peer reviewed; Journal article, 2020)Background Advantages of translocation of recombinant proteins to the periplasm in Escherichia coli include simplified downstream processing, and improved folding and in vivo activity of the target protein. There are, ... -
Production of Value-Added Chemicals by Bacillus methanolicus Strains Cultivated on Mannitol and Extracts of Seaweed Saccharina latissima at 50C
(Peer reviewed; Journal article, 2020)The facultative methylotroph Bacillus methanolicus MGA3 has previously been genetically engineered to overproduce the amino acids L-lysine and L-glutamate and their derivatives cadaverine and γ-aminobutyric acid (GABA) ... -
Sous-vide behandling av Atlantisk sild med tilsetning av naturlige antioksidanter ekstrahert fra urter fra middelhavsområdet
(Master thesis, 2020)Oregano-ekstrakt var den eneste antioksidant ekstraktet som viste potensiale til å forsinke lipidoksidasjonen i fisk under lagring. Oregano-ekstrakt hadde effektivitet til å forsinke lipidoksidasjon i fisk, mens ... -
Gut Microbiota of Migrating Wild Rabbit Fish (Siganus guttatus) Larvae Have Low Spatial and Temporal Variability
(Peer reviewed; Journal article, 2019)We investigated the gut microbiota of rabbit fish larvae at three locations in Vietnam (ThuanAn—northern, QuangNam—intermediate, BinhDinh—southern sampling site) over a three-year period. In the wild, the first food for ... -
Nitrifying biofilms deprived of organic carbon show higher functional resilience to increases in carbon supply
(Peer reviewed; Journal article, 2020)In nitrifying biofilms, the organic carbon to ammonia nitrogen (C/N) supply ratio can influence resource competition between heterotrophic and nitrifying bacteria for oxygen and space. We investigated the impact of acute ... -
Strategies for structuring interdisciplinary education in Systems Biology: an European perspective
(Peer reviewed; Journal article, 2016)Systems Biology is an approach to biology and medicine that has the potential to lead to a better understanding of how biological properties emerge from the interaction of genes, proteins, molecules, cells and organisms. ... -
Reproducibility of fluorescent expression from engineered biological constructs in E. coli.
(Peer reviewed; Journal article, 2016)We present results of the first large-scale interlaboratory study carried out in synthetic biology, as part of the 2014 and 2015 International Genetically Engineered Machine (iGEM) competitions. Participants at 88 institutions ... -
Activation of chloramphenicol biosynthesis in Streptomyces venezuelae ATCC 10712 by ethanol shock: Insights from the promoter fusion studies
(Peer reviewed; Journal article, 2016)Background Streptomyces venezuelae ATCC 10712 produces antibiotics chloramphenicol (Cml) and jadomycin (Jad) in response to nutrient limitation and ethanol shock (ES), respectively. Biosynthesis of Cml and Jad was shown ... -
Use of Spectroscopic Techniques for a Rapid and Non-Destructive Monitoring of Thermal Treatments and Storage Time of Sous-Vide Cooked Cod Fillets
(Peer reviewed; Journal article, 2020)In this work, the potential of spectroscopic techniques was studied to investigate heat-induced changes occurring during the application of thermal treatments on cod (Gadus morhua L.) fillets. Vacuum-packed samples were ... -
Conformation and cooperative order-disorder transition in aqueous solutions of β-1,3-D-glucan with different degree of branching varied by the Smith degradation
(Peer reviewed; Journal article, 2019)β‐1,3‐d‐glucan with different degrees of branching were obtained by selectively and gradually removing side chains from schizophyllan, a water‐soluble triple helical polysaccharide, using the Smith degradation. Size exclusion ... -
Quantitative metabolomics of the thermophilic methylotroph Bacillus methanolicus
(Peer reviewed; Journal article, 2016)Background The gram-positive bacterium Bacillus methanolicus MGA3 is a promising candidate for methanol-based biotechnologies. Accurate determination of intracellular metabolites is crucial for engineering this bacteria ... -
Genome-based genetic tool development for Bacillus methanolicus: Theta-and rolling circle-replicating plasmids for inducible gene expression and application to methanol-based cadaverine production
(Peer reviewed; Journal article, 2016)Bacillus methanolicus is a thermophilic methylotroph able to overproduce amino acids from methanol, a substrate not used for human or animal nutrition. Based on our previous RNA-seq analysis a mannitol inducible promoter ...
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