PhD
+47 958 40 641
+47 64 97 04 18
nils.kristian.afseth@nofima.no
Publications in Cristin
Ås
Related content
- CV
- Publications
- Projects
Biography Nils Kristian Afseth
My work as a PhD student covers the fields of spectroscopy, chemometrics and chemistry. The PhD research project wears the working title ”Spectroscopy for the rapid analysis of foods”, lies within the Matforsk project ”Effective assessment of food quality by rapid spectroscopic and sensor techniques”, and is performed under the strict supervision of Vegard Segtnan, Jens Petter Wold and Tomas Isaksson. The PhD research project serves several aims. I mainly work with spectroscopic techniques like Near-Infrared, Infrared and Raman spectroscopy and compare these techniques used as rapid and non-destructive methods for analysing interesting components of various kinds of food systems. In addition I try to combine various chemometric techniqueswith basic knowledge about the spectroscopic methods and the chemistry of the specific food systems to assure robust and quantitative descriptions of the components of interest. So far I have used quite a bit of time working with Raman spectroscopy. The theory of Raman scattering has been known for about 80 years, but not until recent years the Raman instruments have grown to be robust, less expensive and thus more available for both research and industry. The technique is rapid, the need for sample preparation is minimal, and molecular vibrations due to water do not dominate in Raman spectra like they often do in Near-Infrared and Infrared spectra. However, issues related to sensitivity and interfering physical features often provide cha
Nils Kristian Afseth has 70 publications at Nofima:
Kristoffersen, Kenneth Aase; van Amerongen, Aart; Böcker, Ulrike; Lindberg, Diana; Wubshet, Sileshi Gizachew; de Vogel-van den Bosch, Heleen; Horn, Svein Jarle; Afseth, Nils Kristian
2020
Kristoffersen, Kenneth Aase; Afseth, Nils Kristian; Böcker, Ulrike; Lindberg, Diana; de Vogel-van den Bosch, Heleen; Ruud, Mari Linnea; Wubshet, Sileshi Gizachew
2020
Sanden, Karen Wahlstrøm; Kohler, Achim; Afseth, Nils Kristian; Böcker, Ulrike; Rønning, Sissel Beate; Liland, Kristian Hovde; Pedersen, Mona Elisabeth
2019
FTIR-based hierarchical modeling for prediction of average molecular weights of protein hydrolysates
Kristoffersen, Kenneth Aase; Liland, Kristian Hovde; Böcker, Ulrike; Wubshet, Sileshi Gizachew; Lindberg, Diana; Horn, Svein Jarle; Afseth, Nils Kristian
2019
Chapter 8 - Bioanalytical Aspects in Enzymatic Protein Hydrolysis of By-Products
Wubshet, Sileshi Gizachew; Lindberg, Diana; Veiseth-Kent, Eva; Kristoffersen, Kenneth Aase; Böcker, Ulrike; Washburn, Kathryn E.; Afseth, Nils Kristian
2019
Lemos Lima, Rita de Cássia; Berg, Ragnhild Stenberg; Rønning, Sissel Beate; Afseth, Nils Kristian; Knutsen, Svein Halvor; Staerk, Dan; Wubshet, Sileshi Gizachew
2019
Eskildsen, Carl Emil Aae; Næs, Tormod; Wold, Jens Petter; Afseth, Nils Kristian; Engelsen, Søren Balling
2019
Kirkhus, Bente; Afseth, Nils Kristian; Borge, Grethe Iren Andersen; Grimsby, Gard Sveinung; Steppeler, Christina; Krona, Annika; Langton, Maud
2019
Monago-Maraña, Olga; Eskildsen, Carl Emil Aae; Afseth, Nils Kristian; Galeano-Díaz, Teresa; de la Pena, Arsenio Muñoz; Wold, Jens Petter
2019
Wubshet, Sileshi Gizachew; Wold, Jens Petter; Böcker, Ulrike; Sanden, Karen Wahlstrøm; Afseth, Nils Kristian
2019
Nirea, Kahsay Gebremariam; Perez de Nanclares Fernandez, Marta; Skugor, Adrijana; Afseth, Nils Kristian; Meuwissen, Theo; Hansen, Jon Øvrum; Mydland, Liv Torunn; Øverland, Margareth
2018
Wubshet, Sileshi Gizachew; Wold, Jens Petter; Afseth, Nils Kristian; Böcker, Ulrike; Lindberg, Diana; Ihunegbo, Felicia Nkem; Måge, Ingrid
2018
Palafox, Mauricio Alcolea; Kattan, Danny; Afseth, Nils Kristian
2018
Pretreatment of different food rest materials for bioconversion into fungal lipid-rich biomass
Tzimorotas, Dimitrios; Afseth, Nils Kristian; Lindberg, Diana; Kjørlaug, Oda Marie; Axelsson, Lars; Shapaval, Volha
2018
Kòsa, Gergely; Vuoristo, Kiira; Horn, Svein Jarle; Zimmermann, Boris; Afseth, Nils Kristian; Kohler, Achim; Shapaval, Volha
2018
High-throughput screening of Mucoromycota fungi for production of low- and high-value lipids
Kosa, Gergely; Zimmermann, Boris; Kohler, Achim; Ekeberg, Dag; Afseth, Nils Kristian; Mounier, Jerome; Shapaval, Volha
2018
Ultrasensitive detection of phenolic antioxidants by surface enhanced Raman spectroscopy
Ornelas-Soto, Nancy; Aguilar-Hernández, Iris; Afseth, Nils Kristian; López-Luke, Tzarara; Contreras-Torres, Flavio F.; Wold, Jens Petter
2017
Molteberg, Eldrid Lein; Johansen, Tor Jacob; Eikemo, Håvard; Afseth, Nils Kristian; Ballance, Simon
2017
Peptide recovery and commercialization by enzymatic hydrolysis of marine biomass
Vang, Birthe; Altintzoglou, Themistoklis; Måge, Ingrid; Wubshet, Sileshi Gizachew; Afseth, Nils Kristian; Whitaker, Ragnhild
2017
Valorization of Proteins from Co- and By-Products from the Fish and Meat Industry
Aspevik, Tone; Oterhals, Åge; Rønning, Sissel Beate; Altintzoglou, Themistoklis; Wubshet, Sileshi Gizachew; Gildberg, Asbjørn; Afseth, Nils Kristian; Whitaker, Ragnhild; Lindberg, Diana
2017
Böcker, Ulrike; Wubshet, Sileshi Gizachew; Lindberg, Diana; Afseth, Nils Kristian
2017
Wubshet, Sileshi Gizachew; Måge, Ingrid; Böcker, Ulrike; Lindberg, Diana; Knutsen, Svein Halvor; Rieder, Anne; Airado-Rodriguez, Diego; Afseth, Nils Kristian
2017
Smarte sensorer gir best utnyttelse av maten vår
Wold, Jens Petter; Afseth, Nils Kristian
2017
Smarte sensorer gir best utnyttelse av maten
Wold, Jens Petter; Afseth, Nils Kristian
2017
Aguilar-Hernández, Iris; Afseth, Nils Kristian; López-Luke, Tzarara; Contreras-Torres, Flavio F.; Wold, Jens Petter; Ornelas-Soto, Nancy
2017
Kòsa, Gergely; Kohler, Achim; Tafintseva, Valeria; Zimmermann, Boris; Forfang, Kristin; Afseth, Nils Kristian; Tzimorotas, Dimitrios; Vuoristo, Kiira; Horn, Svein Jarle; Jerome, Mounier; Shapaval, Volha
2017
Afseth, Nils Kristian; Moren, Mari; Whitaker, Ragnhild
2016
Forskerne finner de beste proteinene i restråstoff
Afseth, Nils Kristian; Lindberg, Diana
2016
Model-based pre-processing in Raman spectroscopy of biological samples
Liland, Kristian Hovde; Kohler, Achim; Afseth, Nils Kristian
2016
Evaluation of Hand-Held Instruments for Representative Determination of Glucose in Potatoes
Helgerud, Trygve; Knutsen, Svein Halvor; Afseth, Nils Kristian; Stene, Kim Frode; Rukke, Elling-Olav; Ballance, Simon
2016
Mixing properties and rheological characteristics of dough used to make potato-cereal soft wraps
Helgerud, Trygve; Schüller, Reidar Barfod; Dessev, Tzvetelin; Rukke, Elling-Olav; Knutsen, Svein Halvor; Afseth, Nils Kristian; Ballance, Simon
2016
Kumar, Rajesh; Grønhaug, Kirsten Marie; Afseth, Nils Kristian; Isaksen, vidar; Davies, Catharina de Lange; Drogset, Jon Olav; Lilledahl, Magnus Borstad
2015
Martin, Adam Dunstan; Afseth, Nils Kristian; Kohler, Achim; Randby, Åshild Taksdal; Eknæs, Margrete; Waldmann, Andres; Dørum, Guro; Måge, Ingrid; Reksen, Olav
2015
Noninvasive analysis of thin turbid layers using microscale spatially offset Raman spectroscopy
Conti, Claudia; Realini, Marco; Colombo, Chiara; Sowoidnich, Kay; Afseth, Nils Kristian; Bertasa, Moira; Botteon, Alessandra; Matousek, Pavel
2015
Helgerud, Trygve; Wold, Jens Petter; Pedersen, Morten Bøhler; Liland, Kristian Hovde; Ballance, Simon; Knutsen, Svein Halvor; Rukke, Elling-Olav; Afseth, Nils Kristian
2015
Single Cell Confocal Raman Spectroscopy of Human Osteoarthritic Chondrocytes: A Preliminary Study
Kumar, Rajesh; Singh, Gajendra Pratap; Grønhaug, Kirsten Marie; Afseth, Nils Kristian; Davies, Catharina De Lange; Drogset, Jon Olav; Lilledahl, Magnus Borstad
2015
Low salt products Final report
Aursand, Ida Grong; Greiff, Kirsti; Erikson, Ulf Gøran; Gallart-Jornet, Lorena; Perisic, Nebojsa; Kohler, Achim; Afseth, Nils Kristian; Ofstad, Ragni; Storrø, Ivar; Josefsen, Kjell Domaas
2014
Afseth, Nils Kristian; Shapaval, Volha
2014
Urban, Jan; Afseth, Nils Kristian; Štys, Dalibor
2014
Shapaval, Volha; Afseth, Nils Kristian; Vogt, Kjell Gjermund; Kohler, Achim
2014
Emerging sampling approaches for Raman analysis of foods
Afseth, Nils Kristian; Bloomfield, Matthew; Wold, Jens Petter; Matousek, Pavel
2014
Afseth, Nils Kristian; Bloomfield, Matthew; Wold, Jens Petter; Matousek, Pavel
2014
Application note: Raman characterization of fat composition
Afseth, Nils Kristian; Larat, V
2013
Perisic, Nebojsa; Afseth, Nils Kristian; Ofstad, Ragni; Narum, Bjørg; Kohler, Achim
2013
Monavar, H. Mohamadi; Afseth, Nils Kristian; Lozano, J; Alimardani, R.; Omid, M.; Wold, Jens petter
2013
Næs, Tormod; Tomic, Oliver; Afseth, Nils Kristian; Segtnan, Vegard; Måge, Ingrid
2013
Perisic, Nebojsa; Afseth, Nils Kristian; Ofstad, Ragni; Scheel, Jan; Kohler, Achim
2013
Perisic, Nebojsa; Afseth, Nils Kristian; Ofstad, Ragni; Hassani, Sahar; Kohler, Achim
2013
Najbjerg, Heidi; Young, Jette F.; Bertram, Hanne C.; Afseth, Nils Kristian; Høst, Vibeke; Kohler, Achim
2013
Extended multiplicative signal correction in vibrational spectroscopy, a tutorial
Afseth, Nils Kristian; Kohler, Achim
2012
Helgerud, Trygve; Segtnan, Vegard; Wold, Jens petter; Ballance, Simon; Knutsen, Svein Halvor; Rukke, Elling-Olav; Afseth, Nils Kristian
2012
Perisic, Nebojsa; Afseth, Nils Kristian; Ofstad, Ragni; Kohler, Achim
2011
Najbjerg, Heidi; Afseth, Nils Kristian; Young, Jette F.; Bertram, Hanne; Pedersen, Mona Elisabeth; Grimmer, Stine J Staavi; Vogt, Kjell gjermund; Kohler, Achim
2011
Chemometrics in biospectroscopy
Kohler, Achim; Afseth, Nils Kristian; Martens, Harald
2010
Quality analysis of milk by vibrational spectroscopy
Kohler, Achim; Afseth, Nils Kristian; Jørgensen, Kjetil; Randby, Åshild Taksdal; Martens, Harald
2010
Raman and Infrared Imaging of Foods
Afseth, Nils Kristian; Böcker, Ulrike
2010
Perez-Juan, Maria; Afseth, Nils Kristian; Gonzalez, Joel; Diaz, Isabel; Gispert, Marina; Furnols, Maria; Oliver, M. Angels; Realini, Carolina E.
2010
Berget, Ingunn; Martens, Harald; Kohler, Achim; Sjurseth, Siri Kulberg; Afseth, Nils Kristian; Narum, Bjørg; Ådnøy, Tormod; Lien, Sigbjørn
2010
Afseth, Nils Kristian; Martens, Harald; Randby, Åshild T.; Gidskehaug, Lars Halvor; Narum, Bjørg; Jørgensen, Kjetil; Lien, Sigbjørn; Kohler, Achim
2010
Status på instrumentering for objektiv kvalitetsdifferensiering av lakseprodukter
Heia, Karsten; Wold, Jens Petter; Afseth, Nils Kristian
2009
Lind, Vibeke; Berg, Jan; Eik, Lars Olav; Eilertsen, Svein; Mølmann, Jørgen; Hersleth, Margrethe; Afseth, Nils Kristian; Haugland, Espen
2009
Westad, Frank; Afseth, Nils Kristian; Bro, Rasmus
2007
Mørkved, Eva Henmo; Afseth, Nils Kristian; Zimcik, Petr
2007
A chromatographic approach for fluorescence reduction in liquid Raman analysis
Afseth, Nils Kristian; Segtnan, Vegard; Wold, Jens-Petter; Marquardt, B.
2007
High-throughput Measurements for Functional Genomics of Milk
Martens, Harald; Kohler, Achim; Afseth, Nils Kristian; Wold, Jens-Petter; Hersleth, Margrethe; Berget, Ingunn; Ådnøy, Tormod; Skaugen, Morten; Isaksson, Tomas; Vegarud, Gerd; Criscione, Andrea; Mevik, Bjørn-Helge; Frøst, M.B.; Randby, Åshild T.; Prestløkken, Egil; Berg, Paul Ragnar; Kent, Matthew Peter; Lien, Sigbjørn; Omholt, Stig W.
2007
Raman spectra of biological samples: A study of preprocessing methods
Afseth, Nils Kristian; Segtnan, Vegard; Marquardt, BJ; Wold, Jens-Petter
2006
The potential of Raman spectroscopy for characterisation of the fatty acid unsaturation of salmon
Afseth, Nils Kristian; Wold, Jens Petter; Segtnan, Vegard
2006
Afseth, Nils Kristian; Segtnan, Vegard; Marquardt, BJ; Wold, Jens-Petter
2005
1. November 2020 – 31. October 2028
Digital Food Quality (short named DigiFoods) is a centre for research-based innovation (SFI) with the purpose of developing smart sensor solutions for food quality assessment directly in the processing lines, throughout the food value chains. The obtained food quality information will be used for optimization of both processes and value chains and make the food industry more efficient and sustainable.
1. June 2018 – 31. May 2018
In Notably we will develop a new technological solution where processing of cod and chicken residual raw materials takes place in several different stages, so that the extracted components will be more valuable than they are today.
1. January 2016 – 31. December 2022
With the use of modern, research-based process technology and expertise, unused or under utilized biomass of marine or terrestrial origin can be used for new, marketable products. We coordinate, develop and increase Nofima’s total expertise related to the future of sustainable protein production. Peptek is a strategic research initiative focused on sustainability, total utilization, food safety and future food security.