Blar i Institutt for bioteknologi og matvitenskap på forfatter "Hakvåg, Sigrid"
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Antibiotic-producing bacteria from the sea surface microlayer in the Trondheim fjord, Norway
Hakvåg, Sigrid (Doktoravhandlinger ved NTNU, 1503-8181; 2009:168, Doctoral thesis, 2009)The marine environment has so far been poorly utilized in the search for (producers of) novel antimicrobial compounds. Marine bioprospecting might therefore be a promising field of research for the pharmaceutical industry ... -
Comparison of two field systems for determination of crude oil biodegradation in cold seawater
Langeloh, Hendrik Hinrich; Greer, Charles W.; Vergeynst, Leendert; Hakvåg, Sigrid; Øverjordet, Ida Beathe; Bakke, Ingrid; Sørensen, Lisbet; Brakstad, Odd Gunnar (Journal article; Peer reviewed, 2024)Marine oil spills have devastating environmental impacts and extrapolation of experimental fate and impact data from the lab to the field remains challenging due to the lack of comparable field data. In this work we compared ... -
Composition analysis and minimal treatments to solubilize 6 polysaccharides from the brown seaweed Laminaria digitata 7 for microbial growth of thermophiles
Allahgoli, Leila; Hakvåg, Sigrid; Aasen, Inga Marie; Brautaset, Trygve; Eva, Nordberg Karlsson (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 ... -
Developing a riboswitch-mediated regulatory system for metabolic flux control in thermophilic bacillus methanolicus
Irla, Marta Katarzyna; Hakvåg, Sigrid; Brautaset, Trygve (Journal article; Peer reviewed, 2021) -
Establishment of a functional system for recombinant production of secreted proteins at 50 °C in the thermophilic Bacillus methanolicus
Irla, Marta Katarzyna; Drejer, Eivind Bøe; Brautaset, Trygve; Hakvåg, Sigrid (Peer reviewed; Journal article, 2020)Background The suitability of bacteria as microbial cell factories is dependent on several factors such as price of feedstock, product range, production yield and ease of downstream processing. The facultative methylotroph ... -
Genetic Tools and Techniques for Recombinant Expression in Thermophilic Bacillaceae
Drejer, Eivind Bøe; Hakvåg, Sigrid; Irla, Marta Katarzyna; Brautaset, Trygve (Journal article; Peer reviewed, 2018)Although Escherichia coli and Bacillus subtilis are the most prominent bacterial hosts for recombinant protein production by far, additional species are being explored as alternatives for production of difficult-to-express ... -
Production of Value-Added Chemicals by Bacillus methanolicus Strains Cultivated on Mannitol and Extracts of Seaweed Saccharina latissima at 50C
Hakvåg, Sigrid; Nærdal, Ingemar; Heggeset, Tonje Marita Bjerkan; Kristiansen, Kåre Andre; Aasen, Inga Marie; Brautaset, Trygve (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) ... -
Studie av forskjellige promotorer i den termotolerante metylotrofe bakterien Bacillus methanolicus
Jelstad, Eirik (Master thesis, 2019)Bacillus methanolicus er en termotolerant, metylotrof, Gram-positiv bakterie som har vist seg å gi høyt utbytte av aminosyrene glutamat og lysin ved overuttrykkelse av gener. Metylotrofi og toleranse mot høy dyrkningstemperatur ...