Browsing NTNU Open by Author "Arlov, Øystein"
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Acid preservation of cultivated brown algae Saccharina latissima and Alaria esculenta and characterization of extracted alginate and cellulose
Nøkling-Eide, Katharina; Tan, Fangchang; Wang, Shennan; Zhou, Qi; Gravdahl, Mina; Langeng, Anne-Mari; Bulone, Vincent; Aachmann, Finn Lillelund; Sletta, Håvard; Arlov, Øystein (Peer reviewed; Journal article, 2023)Cultivated brown algae represent an important potential source of carbohydrate polymers for packaging and other biobased materials. However, their exploitation is currently limited by a short harvest season and a lack of ... -
An assessment of physical and chemical conditions in alginate extraction from two cultivated brown algal species in Norway: Alaria esculenta and Saccharina latissima
Nøkling-Eide, Katharina; Langeng, Anne-Mari; Åslund, Karl Olof Andreas; Aachmann, Finn Lillelund; Sletta, Håvard; Arlov, Øystein (Peer reviewed; Journal article, 2023)Alginates are linear anionic polysaccharides originating from brown algae. Their properties target several application areas in in food-, technical- and pharmaceutical industries, and thus they are highly valued. Norway ... -
Biomimetic sulphated alginate hydrogels suppress IL-1B-induced inflammatory responses in human chondrocytes
Arlov, Øystein; Öztürk, E.; Steinwachs, M.; Skjåk-Bræk, Gudmund; Zenobi-Wong, M. (Journal article; Peer reviewed, 2017)Loss of articular cartilage from ageing, injury or degenerative disease is commonly associated with inflammation, causing pain and accelerating degradation of the cartilage matrix. Sulphated glycosaminoglycans (GAGs) are ... -
Bioprinting of functionalized alginate-nanocellulose scaffolds for 3D cultivation of human dermal fibroblasts
Aarseth, Ingrid Weløy (Master thesis, 2022)Nye systemer for 3D-cellekultivering har blitt forsket på for å forbedre in vitro mikromiljø for celler. Målet til disse systemene er å danne et fysiologisk representativt miljø for cellekulturer slik at man kan undersøke ... -
Changes in food quality attributes of Saccharina latissima following pre-treatments, frozen storage and subsequent thawing
Stevant, Pierrick Francois Denis; Aachmann, Finn Lillelund; Arlov, Øystein; Nordtvedt, Tom Ståle; Sarno, Antonio; Aarstad, Olav Andreas; Klau, Leesa Jane; Rustad, Turid; Sæther, Maren; Rebours, Celine (Journal article; Peer reviewed, 2024)Changes in relevant quality attributes for the food industry were monitored in Saccharina latissima following pre-treatment (PT), freezing and thawing. The evaluation included the monitoring of qualitative indicators (dry ... -
Characterization of Sulfated Alginate Hybrid Gels for Tissue Engineering
Aaen, Ragnhild (Master thesis, 2015)Tissue engineering is a field aiming to replace damaged tissue while reducing the great need of organ donors the world is facing today. Alginates are linear co-polymers consisting of the two monosaccharides β-D-mannuronic ... -
Extraction, Characterization, and Biological Activities of Laminarin and Fucoidan from Laminaria hyperborea
Henriksson, Emilia Linnea (Master thesis, 2019)Fucoidan og laminaran finnes som biprodukter i sidestrømmer som stammer fra alginatproduksjon. Utnyttelse av restråstoff fra tare kan generere produkter av kommersiell verdi, og dermed føre til økonomisk vekst for ... -
Heparin Analogs Created by Sulfation of Alginates Using a Chemoenzymatic Strategy
Arlov, Øystein (Master thesis, 2012)Alginates are a class of natural unbranched linear polysaccharides, and consist of the monomers β-D-mannuronic acid and α-L-guluronic acid. The inherent physical properties, relative ease of modification, wide availability ... -
In-process epimerisation of alginates from Saccharina latissima, Alaria esculenta and Laminaria hyperborea
Nøkling-Eide, Katharina; Aachmann, Finn Lillelund; Tøndervik, Anne; Arlov, Øystein; Sletta, Håvard (Journal article; Peer reviewed, 2024)Alginates are valued in many industries, due to their versatile properties. These polysaccharides originate from brown algae (Phaeophyceae) and some bacteria of the Azotobacter and Pseudomonas genera, consisting of 1 → 4 ... -
Sequential extraction and fractionation of four polysaccharides from cultivated brown algae Saccharina latissima and Alaria esculenta
Sandberg Birgersson, Paulina Anna Teresia; Oftebro, Maren; Strand, Wenche Iren; Aarstad, Olav Andreas; Sætrom, Gerd Inger; Sletta, Håvard; Arlov, Øystein; Aachmann, Finn Lillelund (Journal article; Peer reviewed, 2023)Norway has a well-established seaweed industry based on extraction of alginates from wild harvested brown algae, Laminaria hyperborea (LH). However, further expansion of wild harvest is limited, and cultivated seaweed can ... -
Structural characterization and immunomodulating assessment of ultra-purified water extracted fucoidans from Saccharina latissima, Alaria esculenta and Laminaria hyperborea
Sandberg Birgersson, Paulina Anna Teresia; Chahal, Aman Singh; Klau, Leesa Jane; Holte, Helle Bratsberg; Arlov, Øystein; Aachmann, Finn Lillelund (Journal article; Peer reviewed, 2024)Fucoidans, a group of high molecular weight polysaccharides derived mainly from brown algae, are characterized by their high fucose content, degree of sulfation (DS), and intra- and interspecific structural variation. ... -
Sulfated alginate microspheres associate with factor H and dampen the inflammatorycytokine response
Arlov, Øystein; Skjåk-Bræk, Gudmund; Rokstad, Anne Mari (Journal article; Peer reviewed, 2016)Alginate microspheres show promise for cell-encapsulation therapy but encounter challenges related to biocompatibility. In the present work we designed novel microbeads and microcapsules based on sulfated polyalternating ... -
Sulfated Alginates as Heparin Analogues: A Review of Chemical and Functional Properties
Arlov, Øystein; Skjåk-Bræk, Gudmund (Journal article; Peer reviewed, 2017)Heparin is widely recognized for its potent anticoagulating effects, but has an additional wide range of biological properties due to its high negative charge and heterogeneous molecular structure. This heterogeneity has ... -
SULFATED ALGINATES: Characterization and applications as biomaterials
Arlov, Øystein (Doctoral thesis at NTNU;2016:159, Doctoral thesis, 2016)As natural constituents of the extracellular matrix, sulfated glycosaminoglycans (GAGs) are of great interest in the design of novel biomaterials for cell immobilization and tissue engineering. A substantial challenge ... -
A supply-chain perspective on producing and upscaling bioplastic from cultivated brown seaweed
Ayala, Maddalen; Arlov, Øystein; Nøkling-Eide, Katharina; Sœther, Maren; Dore, Camilla; Vidal, Julio; Zhou, Qi; Wang, Shennan; Michalak, Leszek; Kyvik, Adriana; Jolain, Bettany; Aubel, Lilas; Jacobsen, Synnøve Strand; Pizzol, Massimo (Journal article; Peer reviewed, 2024)Plastic pollution is an environmental emergency and finding sustainable alternatives to traditional plastics has become a pressing need. Seaweed-based bioplastic has emerged as a promising solution, as it is biodegradable ... -
Variations in the chemical composition of Norwegian cultivated brown algae Saccharina latissima and Alaria esculenta based on deployment and harvest times
Arlov, Øystein; Nøkling-Eide, Katharina; Aarstad, Olav Andreas; Jacobsen, Synnøve Strand; Langeng, Anne-Mari; Borrero Santiago, Ana Rocio; Sæther, Maren; Rustad, Turid; Aachmann, Finn Lillelund; Sletta, Håvard (Journal article; Peer reviewed, 2024)Brown algae exhibit large seasonal variation in their composition based on nutrient and sunlight access, as well as other environmental factors. The continued growth of brown algae cultivation in Europe is dependent on ... -
Veikart for industriell dyrking av tare i Trøndelag
Almås, Karl Andreas; Arlov, Øystein; Bergsmyr, Brage; Broch, Ole Jacob; Forbord, Silje; Hosen, Johanne Tryggvason; Hovda, Asle J.; Kleiven, Erin; Lona, Eivind; Neves, Luiza S.; Nilsen, Aurora Tung; Toldnes, Bendik; Skjermo, Jorunn (Research report, 2024)SAMMENDRAG • Med behovet for en mer bærekraftig matproduksjon (mer mat fra havet) og vedtatte klimamål (binding av CO2) er det en ønsket utvikling at den globale produksjonen av dyrket tare skal vokse frem mot 2030. • ...