A5014673789- Hydrogels: synthesis, properties, applications
- Proteins in Food Systems
- Polysaccharides Composition and Applications
- Polysaccharides and Plant Cell Walls
- Collagen: Extraction and Characterization
- Seaweed-derived Bioactive Compounds
- Microencapsulation and Drying Processes
- Meat and Animal Product Quality
- Protein Hydrolysis and Bioactive Peptides
- Advanced Drug Delivery Systems
- Surfactants and Colloidal Systems
- Proteoglycans and glycosaminoglycans research
- biodegradable polymer synthesis and properties
- Pancreatic function and diabetes
- Glycosylation and Glycoproteins Research
- Drug Solubulity and Delivery Systems
- 3D Printing in Biomedical Research
- Supramolecular Self-Assembly in Materials
- Carbohydrate Chemistry and Synthesis
- Nanocomposite Films for Food Packaging
- Microfluidic and Bio-sensing Technologies
- Polymer Surface Interaction Studies
- Lipid Membrane Structure and Behavior
- Microbial Metabolites in Food Biotechnology
- Enzyme Production and Characterization
Norwegian University of Science and Technology
2015-2024
Trondheim Kommune
2021
Norwegian Biochemical (Norway)
2011
University of Trieste
2004-2007
Newcastle University
2005
Kyoto Institute of Technology
2000-2003
Chitosan is a unique biopolymer in the respect that it abundant, cationic, low-toxic, non-immunogenic and biodegradable. The relative occurrence of two monomeric building units (N-acetyl-glucosamine d-glucosamine) crucial to whether chitosan predominantly an ampholyte or polyelectrolyte at acidic pH-values. chemical composition not only its surface activity properties, but also why can undergo sol–gel transition. This review gives overview hydrogels their biomedical applications, e.g.,...
Ca−alginate gels were studied by small-angle X-ray scattering and rheology to determine relations between chemical composition concentrations of the alginate elasticity structure gels. The prepared in situ release Ca2+ from either Ca−EGTA or CaCO3 with total concentration range 5−30 mM. Alginates low (39%), intermediate (50%), high (68%) fractions α-l-GulA originating brown algae Ascophyllum nodosum, Laminaria hyperborea leaf, stipe, respectively, employed. Two three different degrees...
Cellulose nanofibrils (CNF) form hydrogels at low concentrations. These are held together by transient interactions such as entanglement of fibrils, non-specific ionic and hydrogen bonds; thus vulnerable for changes in the chemical environment or influence mechanical forces. By a covalent crosslinking stable permanent gels can be formed. In this study we have produced CNF using TEMPO mediated oxidation followed fibrillation. During procedure, carboxyl aldehyde groups introduced on surfaces....
Dehulling of peas and faba beans prior to milling air classification was evaluated, namely its impact on physical properties, chemical composition techno-functional properties the fractions. Dry fractionation protocols for protein enrichment from whole dehulled were optimized large-scale batches produced. Fine fractions with contents 44.0 46.2% dm between 60.0 60.9% obtained, respectively. A maximum recovery 71.3% 49.2% obtained beans, enabled a lighter colour bean improved starch in coarse...
For gelatin-based confectionery, nutraceutical, and pharmaceutical products, storage stability is important for maintaining textural properties during transportation throughout the shelf life of final product. Exposure to elevated temperatures causes degradation gelatin molecule, which results in a reduction average molecular weight, further impacting its mechanical properties. In this study, long-term systems prepared with different gelatins (type B from bovine, type A pig skin, or fish...
Biocompatible hydrogels are very interesting for applications in, e.g., tissue engineering and immobilization of cells, such as calcium-alginate gels where the calcium ions form specific interactions with guluronic acid units. We here report on a new gelling system chitosan alginate containing only mannuronic (poly-M), which prepared using following steps: (i) mixing at pH well above 7 is mainly uncharged; (ii) controlled lowering by adding slowly hydrolyzing d-glucono-δ-lactone (GDL); (iii)...
Alginic acid gels were studied by small-angle X-ray scattering and rheology to elucidate the influence of alginate chemical composition molecular weight on gel elasticity structure. The alginic prepared homogeneous pH reduction throughout sample. Three alginates with different sequence, two three weights each sample examined. samples fractions guluronic residues 0.39 (LoG), 0.50 (InG), 0.68 (HiG), covering range commercially available alginates, employed. excess intensity I was about 1 order...
Mucus rheology is integral to physiological function with the exact secretion resulting from macromolecular components, both mucin and nonmucin, interactions between these macromolecules. Here we present data demonstrating that low-molecular-weight guluronic acid oligomers extracted alginate are able disrupt intermolecular in purified native mucous systems, rheological changes compatible a lower cross-link density thus reduced resistance deformation. Additionally, associated altered...
The effect of guluronate oligomers on the barrier properties mucous matrices was investigated in terms mobility nanoparticles by fluorescence recovery after photobleaching (FRAP), cellular uptake mucus secreting cells (HT29-MTX), and mucin matrix architecture scanning electron microscopy (SEM). Guluronate improved nanoparticle both native highly purified through a layer. Addition to resulted decrease density network cross-links an increase pore size. Based these data, we conclude that are...