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Biografi Åge Oterhals

Jeg er ansatt som seniorforsker i Nofima. Mine hovedinteresser er innen områdene marin og industriell bioteknologi, fôrteknologi, prosessoptimalisering og effekt av prosessbetingelser på produktkvalitet. Nåværende forsknings¬aktivitet inkluderer kjemisk/fysisk karakterisering av proteinråvarer relatert til ekstrudering av fiskefôr, enzymatisk hydrolyse av proteiner, prosessutvikling og anvendelse av separasjons¬teknologi. Jeg er utdannet sivilingeniør innen områdene kjemi og industriell bioteknologi og har en PhD-grad innen fysikk og teknologi. Forskningsfaglig har jeg arbeidet med en lang rekke industri og prosessrelaterte prosjekter som omfatter råstoffkvalitet, separasjons- og avvannings¬teknologi, fôrteknologi, fermenterings¬teknologi,raffinering og anvendelse av fiskeolje i næringsmidler, og fjerning av persistente organiske miljøgifter i fiskemel og fiskeolje. Jeg har tidligere industri- og forskningsfaglig erfaring fra utvikling og formulering av produkter innen områdene spesialdietter, kosttilskudd, helsekost, fôringredienser og fôr.

Åge har 25 vitenskapelige publikasjoner i Cristin:

Samuelsen, Tor Andreas; Oterhals, Åge; Kousoulaki, Katerina; 2018: High lipid microalgae (Schizochytrium sp.) inclusion as a sustainable source of n-3 long-chain PUFA in fish feed — Effects on the extrusion process and physical pellet quality

Ahmad, Rafiq; Samuelsen, Tor Andreas; Garvik, Anne B.; Oterhals, Åge; 2018: Effect of amino acid, pH and mineral salts on glass transition and flow behaviour of soy protein concentrate

Drotningsvik, Aslaug; Vikøren, Linn Anja Slåke; Mjøs, Svein Are; Oterhals, Åge; Pampanin, Daniela M.; Flesland, Ola; Gudbrandsen, Oddrun Anita; 2018: Water-soluble fish protein intake led to lower serum and liver cholesterol concentrations in obese zucker fa/fa rats

Vildmyren, Iselin Thowsen; Cao, Huy John Vu; Haug, Lina Bowitz; Valand, Ida Ulrikke; Eng, Øyvin Andre Solberg; Oterhals, Åge; Austgulen, Maren Hoff; Halstensen, Alfred; Mellgren, Gunnar; Gudbrandsen, Oddrun Anita; 2018: Daily intake of protein from cod residual material lowers serum concentrations of nonesterified fatty acids in overweight healthy adults: A randomized double-blind pilot study

Aspevik, Tone; Oterhals, Åge; Rønning, Sissel Beate; Altintzoglou, Themistoklis; Wubshet, Sileshi Gizachhew; Gildberg, Asbjørn; Afseth, Nils Kristian; Whitaker, Ragnhild D.; Lindberg, Diana; 2017: Valorization of Proteins from Co- and By-Products from the Fish and Meat Industry

Jacobsen, Hans Jakup; Kousoulaki, Katerina; Sandberg, Ann-Sofie; Carlsson, Nils- Gunnar; Ahlstrøm, Øystein; Oterhals, Åge; 2017: Enzyme pre-treatment of soybean meal: Effects on non-starch carbohydrates, protein, phytic acid, and saponin biotransformation and digestibility in mink (Neovison vison)

Samuelsen, Tor Andreas; Oterhals, Åge; 2016: Water-soluble protein level in fishmeal affects extrusion behavior, phase transitions and physical quality of feed

Aspevik, Tone; Totland, Christian; Lea, Per; Oterhals, Åge; 2016: Sensory and surface-active properties of protein hydrolysates based on Atlantic salmon (Salmo salar) by-products

Aspevik, Tone; Egede-Nissen, Henning; Oterhals, Åge; 2016: A systematic approach to the comparison of cost efficiency of endopeptidases for the hydrolysis of Atlantic salmon (Salmo salar) by-products

Oterhals, Åge; Samuelsen, Tor Andreas; 2015: Plasticization effect of solubles in fishmeal

Friesen, Erin N.; Skura, Brent J; Ikonomou, Michael G; Oterhals, Åge; Higgs, Dave A.; 2015: Influence of terrestrial lipid and protein sources and activated carbon-treated fish oil on levels of persistent organic pollutants and fatty acids in the flesh of Atlantic salmon

Samuelsen, Tor Andreas; Mjøs, Svein Are; Oterhals, Åge; 2014: Influence of type of raw material on fishmeal physicochemical properties, the extrusion process, starch gelatinization and physical quality of fish feed

Thomsen, Birgitte Raagaard; Haugsgjerd, Bjørn Ole; Griinari, Mikko; Lu, Henna Fu Sieng; Bruheim, Inge; Vogt, Kjell Gjermund; Oterhals, Åge; Jacobsen, Charlotte; 2013: Investigation of oxidative degradation and non‐enzymatic browning reactions in krill and fish oils

Samuelsen, Tor Andreas; Mjøs, Svein Are; Oterhals, Åge; 2013: Impact of variability in fishmeal physicochemical properties on the extrusion process, starch gelatinization and pellet durability and hardness

Oterhals, Åge; Kvamme, Bjørn; 2013: Optimization of an oil leaching process to reduce the level of dioxins and dioxin-like PCBs in fishmeal

Oterhals, Åge; Vogt, Kjell Gjermund; 2013: Impact of extraction, refining and concentration stages on the stability of fish oil

Jensen, Bjørnar; Kvamme, Bjørn; Kuznetsova, Tatiana; Oterhals, Åge; 2012: Modeling trapping mechanism for PCB adsorption on activated carbon

Jensen, Bjørnar; Kuznetsova, Tatiana; Kvamme, Bjørn; Oterhals, Åge; 2011: Molecular dynamics study of selective adsorption of PCB on activated carbon

Oterhals, Åge; 2011: Decontamination of persistent organic pollutants in fishmeal and fish oil. Process optimization and modeling

Oterhals, Åge; 2011: Decontamination of persistent organic pollutants in fishmeal and fish oil – Process optimization and modeling

Oterhals, Åge; Berntssen, Marc; 2010: Effects of Refining and Removal of Persistent Organic Pollutants by Short-Path Distillation on Nutritional Quality and Oxidative Stability of Fish Oil

Oterhals, Åge; Kvamme, Bjørn; Berntssen, Marc; 2010: Modeling of a short-path distillation process to remove persistent organic pollutants in fish oil based on process parameters and quantitative structure properties relationships

Oterhals, Åge; Nygård, Einar; 2008: Reduction of persistent organic pollutants in fishmeal: A feasibility study

Oterhals, Åge; Solvang, Marianne; Nortvedt, Ragnar; Berntssen, Marc; 2007: Optimization of activated carbon-based decontamination of fish oil by response surface methodology

Berntssen, Marc; Oterhals, Åge; Lie, Øyvind; Lundebye, Anne-Katrine; 2006: Tailoring farmed Atlantic salmon with lower levels of persistent organic pollutants