Blar i NOFIMA vitenarkiv på forfatter "Afseth, Nils Kristian"
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Near infrared light penetration in watermelon related to internal quality evaluation
Vega-Castellote, Miguel; Sanchez, Maria-Teresa; Wold, Jens Petter; Afseth, Nils Kristian; Perez-Marin, Dolores (Peer reviewed; Journal article, 2023)The interaction between near infrared (NIR) light and the sample is a key factor to take into consideration when developing applications using NIR spectroscopy. The aim of this study was to assess the penetration depth of ... -
Non-destructive Raman spectroscopy as a tool for measuring ASTA color values and Sudan I content in paprika powder
Monago-Marana, Olga; Eskildsen, Carl Emil Aae; Afseth, Nils Kristian; Galeano-Diaz, Teresa; Munoz de la Pena, Arsenio; Wold, Jens Petter (Journal article; Peer reviewed, 2019) -
Optical investigation of osteoarthritic human cartilage (ICRS grade) by confocal Raman spectroscopy: a pilot study
Kumar, Rajesh; Grønhaug, Kirsten Marie; Afseth, Nils Kristian; Isaksen, vidar; Davies, Catharina de Lange; Drogset, Jon Olav; Lilledahl, Magnus Borstad (Peer reviewed; Journal article, 2015)Biomolecular changes in the cartilage matrix during the early stage of osteoarthritis may be detected by Raman spectroscopy. The objective of this investigation was to determine vibrational spectral differences among ... -
Peptides from chicken processing by-product inhibit DPP-IV and promote cellular glucose uptake: potential ingredients for T2D management
Lemos Lima, Rita de Cássia; Berg, Ragnhild Stenberg; Rønning, Sissel Beate; Afseth, Nils Kristian; Knutsen, Svein Halvor; Staerk, Dan; Wubshet, Sileshi Gizachhew (Journal article; Peer reviewed, 2019)Inhibition of dipeptidyl peptidase IV (DPP-IV) and stimulation of muscle glucose uptake are two of the key strategies for management of type-2-diabetes (T2D). In the present study, four protein hydrolysates generated by ... -
Post-enzymatic hydrolysis heat treatment as an essential unit operation for collagen solubilization from poultry by-products.
Kristoffersen, Kenneth Aase; Afseth, Nils Kristian; Böcker, Ulrike; Dankel, Elin Katinka; Rønningen, Mats; Lislelid, Andreas; Ofstad, Ragni; Lindberg, Diana; Wubshet, Sileshi Gizachew (Peer reviewed; Journal article, 2022) -
Prediction of chemical and sensory properties in strawberries using Raman spectroscopy
Andersen, Petter Vejle; Afseth, Nils Kristian; Aaby, Kjersti; Øvrum Gaarder, Mari; Remberg, Siv Fagertun; Wold, Jens Petter (Peer reviewed; Journal article, 2023) -
Prediction of water holding capacity and pH in porcine longissimus lumborum using Raman spectroscopy
Andersen, Petter Vejle; Afseth, Nils Kristian; Gjerlaug-Enger, Eli; Wold, Jens Petter (Peer reviewed; Journal article, 2021)The main purpose of this study was to investigate if Raman spectra recorded at the exact same position as drip loss measurements could improve prediction of drip loss in pork. One ventral and one dorsal cylindrical plug, ... -
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 Torsten; Shapaval, Volha (Peer reviewed; Journal article, 2018) -
Quantification of soluble solids and individual sugars in apples by Raman spectroscopy: A feasibility study
Monago-Maraña, Olga; Afseth, Nils Kristian; Knutsen, Svein Halvor; Wubshet, Sileshi Gizachew; Wold, Jens Petter (Journal article; Peer reviewed, 2021)This study reports the feasibility of using Raman spectroscopy for quantification of soluble solids and individual sugars in apples. Six different commercial apple varieties were measured by Raman spectroscopy at three ... -
Raman and near Infrared Spectroscopy for Quantification of Fatty Acids in Muscle Tissue—A Salmon Case Study
Afseth, Nils Kristian; Dankel, Elin Katinka; Andersen, Petter Vejle; Difford, Gareth Frank; Horn, Siri Storteig; Sonesson, Anna Kristina; Hillestad, Borghild; Wold, Jens Petter; Tengstrand, Erik (Peer reviewed; Journal article, 2022)The aim of the present study was to critically evaluate the potential of using NIR and Raman spectroscopy for prediction of fatty acid features and single fatty acids in salmon muscle. The study was based on 618 homogenized ... -
Raman spectroscopy and NIR hyperspectral imaging for in-line estimation of fatty acid features in salmon fillets
Lintvedt, Tiril Aurora; Andersen, Petter Vejle; Afseth, Nils Kristian; Heia, Karsten; Lindberg, Stein-Kato; Wold, Jens Petter (Peer reviewed; Journal article, 2022)Raman spectroscopy was compared with near infrared (NIR) hyperspectral imaging for determination of fat composition (%EPA + DHA) in salmon fillets at short exposure times. Fillets were measured in movement for both methods. ... -
Raman spectroscopy for quantification of residual calcium and total ash in mechanically deboned chicken meat
Wubshet, Sileshi Gizachhew; Wold, Jens Petter; Böcker, Ulrike; Sanden, Karen Wahlstrøm; Afseth, Nils Kristian (Journal article; Peer reviewed, 2018)According to European food safety authorities, one of the major control parameters for mechanically separated meat is calcium content, which is an indicator of residual bone. Residual bone in mechanically separated meat ... -
Raman, near-infrared and fluorescence spectroscopy for determination of collagen content in ground meat and poultry by-products.
Monago-Maraña, Olga; Wold, Jens Petter; Rødbotten, Rune; Dankel, Elin Katinka; Afseth, Nils Kristian (Journal article, 2021)Raman, near-infrared and fluorescence spectroscopy were evaluated for determination of collagen content in ground meat. Two sample sets were used (i.e. ground beef and ground poultry by-products), and collagen concentrations ... -
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 (Journal article, 2015) -
Status på instrumentering for objektiv kvalitetsdifferensiering av lakseprodukter
Heia, Karsten; Wold, Jens Petter; Afseth, Nils Kristian (Nofima rapportserie, Research report, 2009)Noen kvalitetsvariasjoner i lakseråstoff er vanskelig å unngå da de kan skyldes naturlige individvariasjoner. I denne rapporten er muligheten for instrumentell måling av følgende kvalitetsegenskaper diskutert: Blod, melanin, ... -
Surface enhanced Raman spectroscopy of phenolic antioxidants: A systematic evaluation of ferulic acid, p-coumaric acid, caffeic acid and sinapic acid
Aguilar-Hernández, Iris; Afseth, Nils Kristian; López-Luke, Tzarara; Contreras-Torres, Flavio F.; Wold, Jens Petter; Ornelas-Soto, Nancy (Journal article; Peer reviewed, 2017)Surface-Enhanced Raman Spectroscopy (SERS) is a powerful surface-sensitive technique to study the vibrational properties of analytes at very low levels of concentration. In particular, detection of bioactive molecules, ... -
Surface enhanced Raman spectroscopy of phenolic antioxidants: A systematic evaluation of ferulic acid, p-coumaric acid, caffeic acid and sinapic acid
Aguilar-Hernández, Iris; Afseth, Nils Kristian; López-Luke, Tzarara; Contreras-Torres, Flavio F.; Wold, Jens Petter; Ornelas-Soto, Nancy (Journal article; Peer reviewed, 2017)Surface-Enhanced Raman Spectroscopy (SERS) is a powerful surface-sensitive technique to study the vibrational properties of analytes at very low levels of concentration. In particular, detection of bioactive molecules, ... -
The heritable landscape of Near Infrared and Raman spectroscopic measurements to improve lipid content in Atlantic salmon fillets.
Difford, Gareth Frank; Horn, Siri Storteig; Dankel, Elin Katinka; Ruyter, Bente; Dagnachew, Binyam Sime; Hillestad, Borghild; Sonesson, Anna Kristina; Afseth, Nils Kristian (Peer reviewed; Journal article, 2021) -
The relationship between fatty acid profiles in milk identified by Fourier transform infrared spectroscopy and onset of luteal activity in Norwegian dairy cattle
Martin, Adam Dunstan; Afseth, Nils Kristian; Kohler, Achim; Randby, Åshild Taksdal; Eknæs, Margrete; Waldmann, Andres; Dørum, Guro; Måge, Ingrid; Reksen, Olav (Peer reviewed; Journal article, 2015)To investigate the feasibility of milk fatty acids as predictors of onset of luteal activity (OLA), 87 lactations taken from 73 healthy Norwegian Red cattle were surveyed over 2 winter housing seasons. The feasibility of ... -
The role of biospectroscopy and chemometrics as enabling technologies for upcycling of raw materials from the food industry
Måge, Ingrid; Wubshet, Sileshi Gizachew; Wold, Jens Petter; Solberg, Lars Erik; Böcker, Ulrike; Dankel, Elin Katinka; Lintvedt, Tiril Aurora; Kafle, Bijay; Cattaldo, Marco; Matić, Josipa; Sorokina, Liudmila; Afseth, Nils Kristian (Peer reviewed; Journal article, 2023)It is important to utilize the entire animal in meat and fish production to ensure sustainability. Rest raw materials, such as bones, heads, trimmings, and skin, contain essential nutrients that can be transformed into ...