Blar i SINTEF Open på forfatter "Hakvåg, Sigrid"
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Composition analysis and minimal treatments to solubilize 6 polysaccharides from the brown seaweed Laminaria digitata 7 for microbial growth of thermophiles
Allahgoli, Leila; Sardari, Roya; Hakvåg, Sigrid; Ara, Kazi; Kristjansdottir, Thordis Anna; Aasen, Inga Marie; Fridjonsson, Olafur; Brautaset, Trygve; Hreggvidsson, Gudmundur O.; Nordberg Karlsson, Eva (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 ... -
The fate of conventional and potentially degradable gillnets in a seawater-sediment system
Brakstad, Odd Gunnar; Sørensen, Lisbet; Hakvåg, Sigrid; Føre, Heidi Moe; Su, Biao; Aas, Marianne; Ribicic, Deni; Grimaldo, Eduardo (Peer reviewed; Journal article, 2022)Abandoned gillnets in the marine environment represent a global environmental risk due to the ghost fishing caused by the nets. Degradation of conventional nylon gillnets was compared to that of nets made of poly- butylene ... -
Korrosjon av stål i ferskvann
Bengtsson Blucher, Daniel; Knudsen, Ole Øystein; Brakstad, Odd Gunnar; Hakvåg, Sigrid; Johnsen, Roy (SINTEF Rapport;2024:00237, Research report, 2022)Det er i dag en diskusjon gående om korrosjon og korrosjonsmonn på pæler som skal stå i Mjøsa. Mjøsa er ferskvann, og det gjelder pæler på lengder opp mot 100 meter, og ca 50 meter av pælen vil stå i ferskvannet. Det er ... -
Oxidation of methane in seawater - Laboratory experiments and the use of models - OC2022 A-114
Brakstad, Odd Gunnar; Nordam, Tor; Øverjordet, Ida B.; Almås, Inger Kjersti; Rønsberg, Marianne Unaas; Molid, Marianne A.; Aas, Marianne; Hakvåg, Sigrid (SINTEF Ocean rapporter;OC2022 A-114, Research report, 2022-12-16)Oxidation of methane was determined in this project by two methods: Stable isotope analyses (13CH4) and by the use of tritium-labelled methane (3H-CH4). The intentions of the project were to obtain methane oxidation rates ... -
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) ...