Browsing NOFIMA vitenarkiv by Author "Ofstad, Ragni"
Now showing items 1-7 of 7
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Characterization of Collagen Structure in Normal, Wooden Breast and Spaghetti Meat Chicken Fillets by FTIR Microspectroscopy and Histology
Sanden, Karen Wahlstrøm; Böcker, Ulrike; Ofstad, Ragni; Pedersen, Mona Elisabeth; Høst, Vibeke; Afseth, Nils Kristian; Rønning, Sissel Beate; Pleshko, Nancy (Peer reviewed; Journal article, 2021)Recently, two chicken breast fillet abnormalities, termed Wooden Breast (WB) and Spaghetti Meat (SM), have become a challenge for the chicken meat industry. The two abnormalities share some overlapping morphological features, ... -
Characterization of vasskveite (water halibut) syndrome for automated detection
Ortega, Samuel; Ofstad, Ragni; Syed, Shaheen; Kranz, Mathias; Heia, Karsten; Anderssen, Kathryn Elizabeth (Peer reviewed; Journal article, 2023)In recent years, cases of vasskveite (water halibut) syndrome in halibut have been increasing. At the moment, there exists no way to screen for the syndrome immediately after capture, which is problematic for both exporters ... -
The effect of adding eggshell membrane to emulsified meat models in terms of structure, water-holding, and texture
Rødbotten, Rune; Böcker, Ulrike; Høst, Vibeke; Dankel, Elin Katinka; Sanden, Karen Wahlstrøm; Pedersen, Mona Elisabeth; Ofstad, Ragni (Journal article, 2022)This study was conducted to evaluate the effect of adding eggshell membrane (ESM), a by-product of the chicken egg processing industry, to emulsified meat models with different NaCl concentrations. The aim was to examine ... -
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 (Research report, 2014)Salt (NaCl) is the world's most established food additive, because of its excellent preservative effects, the sensorial properties and the increased food processability. In the European countries, 75-80% of salt we consume ... -
Monitoring Protein Structural Changes and Hydration in Bovine Meat Tissue Due to Salt Substitutes by Fourier Transform Infrared (FTIR) Microspectroscopy
Perisic, Nebojsa; Afseth, Nils Kristian; Ofstad, Ragni; Kohler, Achim (Peer reviewed; Journal article, 2011) -
Monitoring Secondary Structural Changes in Salted and Smoked Salmon Muscle Myofiber Proteins by FT-IR Microspectroscopy
Carton, Izaskun; Böcker, Ulrike; Ofstad, Ragni; Sørheim, Oddvin; Kohler, Achim (Peer reviewed; Journal article, 2009)Fourier transform infrared (FT-IR) microspectroscopy and light microscopy were used to study changes in the myofibrillar proteins and microstructure in salmon muscle due to dry salting and smoking. Light microscopy showed ... -
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)