Blar i NOFIMA vitenarkiv på forfatter "Kristoffersen, Kenneth Aase"
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Average molecular weight, degree of hydrolysis and dry-film FTIR fingerprint of milk protein hydrolysates: Intercorrelation and application in process monitoring.
Kristoffersen, Kenneth Aase; Afseth, Nils Kristian; Böcker, Ulrike; Lindberg, Diana; Wubshet, Sileshi Gizachhew; de Vogel-vanden Bosch, Heleen; Ruud, Mari Linnea (Peer reviewed; Journal article, 2020)Fourier-transform infrared (FTIR) spectroscopy was applied to predict the degree of hydrolysis (DH%) and weight-average molecular weight (Mw) in milk protein hydrolysates. Both DH% and Mw are important quality parameters ... -
Effects of poultry raw material variation and choice of protease on protein hydrolysate quality
Lindberg, Diana; Kristoffersen, Kenneth Aase; de Vogel-van den Bosch, Heleen; Wubshet, Sileshi Gizachew; Böcker, Ulrike; Rieder, Anne; Fricke, Enno; Afseth, Nils Kristian (Peer reviewed; Journal article, 2021)The aim of this study was to investigate the role of compositional variations in side-streams from the chicken and turkey industry on product characteristics after enzymatic protein hydrolysis (EPH). Variation was obtained ... -
Exploring Effects of Protease Choice and Protease Combinations in Enzymatic Protein Hydrolysis of Poultry By-Products
Lindberg, Diana; Kristoffersen, Kenneth Aase; Wubshet, Sileshi Gizachew; Hunnes, Linn Maria; Dalsnes, Marte Ryen; Dankel, Elin Katinka; Høst, Vibeke; Afseth, Nils Kristian (Peer reviewed; Journal article, 2021)A study of the effects of single and combined protease hydrolysis on myofibrillar versus collagenous proteins of poultry by-products has been conducted. The aim was to contribute with knowledge for increased value creation ... -
Fourier-transform infrared spectroscopy for monitoring proteolytic reactions using dry-films treated with trifluoroacetic acid
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 (Peer reviewed; Journal article, 2020)In this study we explore the potential of using Fourier-transform infrared (FTIR) spectra of trifluoroacetate-protein and peptide complexes for monitoring proteolytic reactions. The idea of treating dry-films of protein ... -
FTIR-based hierarchical modeling for prediction of average molecular weights of protein hydrolysates
Kristoffersen, Kenneth Aase; Liland, Kristian Hovde; Böcker, Ulrike; Wubshet, Sileshi Gizachhew; Lindberg, Diana; Horn, Svein Jarle; Afseth, Nils Kristian (Peer reviewed; Journal article, 2019)In the presented study, Fourier-transform infrared (FTIR) spectroscopy is used to predict the average molecular weight of protein hydrolysates produced from protein-rich by-products from food industry using commercial ... -
FTIR-based prediction of collagen content in hydrolyzed protein samples
Kristoffersen, Kenneth Aase; Måge, Ingrid; Wubshet, Sileshi Gizachew; Böcker, Ulrike; Riiser Dankel, Katinka; Lislelid, Andreas; Rønningen, Mats Aksnes; Afseth, Nils Kristian (Peer reviewed; Journal article, 2023) -
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) -
Production of food-grade microcarriers based on by-products from the food industry to facilitate the expansion of bovine skeletal muscle satellite cells for cultured meat production
Andreassen, R. Christel; Rønning, Sissel Beate; Solberg, Nina Therese; Grønlien, Krister Gjestvang; Kristoffersen, Kenneth Aase; Aase, Kenneth; Høst, Vibeke; Kolset, Svein Olav; Pedersen, Mona Elisabeth (Journal article; Peer reviewed, 2022) -
Quantitative at-line monitoring of enzymatic hydrolysis using benchtop diffusion nuclear magnetic resonance spectroscopy
McCarney, Evan R.; Kristoffersen, Kenneth Aase; Anderssen, Kathryn Elizabeth (Peer reviewed; Journal article, 2024) -
Screening of by-products from the food industry as growth promoting agents in serum-free media for skeletal muscle cell culture.
Andreassen, R. Christel; Pedersen, Mona Elisabeth; Kristoffersen, Kenneth Aase; Rønning, Sissel Beate (Peer reviewed; Journal article, 2020)The most significant cost driver for efficient bio-production of edible animal proteins is the cell culture media, where growth factors account for up to 96% of the total cost. The culture media must be serum-free, affordable, ... -
Trifluoroacetylation of electron-rich thiophenes
Kristoffersen, Kenneth Aase; Benneche, Tore (Peer reviewed; Journal article, 2015)Electron-rich thiophenes were trifluoroacetylated by trifluoroacetic anhydride with different nitrogen bases in dichloromethane at room temperature in good yields. Trifluoroacetylation without a base gave significantly ...