A5015049058- biodegradable polymer synthesis and properties
- Seaweed-derived Bioactive Compounds
- Marine and coastal plant biology
- Algal biology and biofuel production
- Food Industry and Aquatic Biology
- Hydrogels: synthesis, properties, applications
- Marine Bivalve and Aquaculture Studies
- Electrospun Nanofibers in Biomedical Applications
- Science, Research, and Medicine
- Chemical Reactions and Isotopes
- Phosphorus and nutrient management
- Genetics, Bioinformatics, and Biomedical Research
- Polysaccharides Composition and Applications
- Protein Hydrolysis and Bioactive Peptides
- Advanced Sensor and Energy Harvesting Materials
KTH Royal Institute of Technology
2016-2022
Abstract Laminarin is a low-molecular-weight polysaccharide found in seaweed (kelp), often equal concentrations to that the commercially important hydrocolloid alginate. However, while alginate can be easily recovered by dissolution followed acid precipitation, for laminarin, there no such straightforward way of recovering it. used as dietary fiber and, if efficiently extracted, it may functional food/feed applications and component plant defense stimulants agriculture. One concentrating...
A fractionation strategy for Saccharina latissima algal biomass was developed utilizing chelating extraction salt solutions to mediate the liberation of components. Alginate, cellulose, laminarin, mannitol, protein, and inorganic salts were quantified in fractions reveal their individual dissolution patterns. Chelation power identified as a key parameter liberating alginate increasing yield extracted The most efficient achieved using aqueous sodium citrate solution, producing an...
Saccharina latissima biomass cultivated along the Swedish west coast was subjected to four different scalable preservation methods after harvest; freezing, sun-drying, oven-drying and ensiling. Freeze-drying freezing at −80 °C were also included provide dry wet references. The effects of on composition (on weight, DW, basis), recovery as well properties high-quality protein, alginate biogas evaluated. Sun-drying significantly reduced fatty acid content seaweeds thereby concentrated ash in...
Abstract Kelps can be included in integrated multitrophic aquaculture (IMTA) where their growth and quality might benefit from the nutrient load released by other species like finfish mussels transforming effluents cultured animals into valuable products. We studied how different concentrations affect growth, photosynthesis, chemical composition pigment content of kelp Saccharina latissima . exposed kelps to natural seawater, water enriched levels ammonium nitrate simulating cage waste...
A study has been conducted to shed light on the effect of cultivation parameters growth and chemical composition Saccharina latissima. Longline took place at two separate locations in Koster archipelago Swedish west coast, centred around three experiments that explored duration pre-deployment hatchery processes (Exp 1), deployment harvest time-frames 2), 2 m vs. 4 depth 3). For all effects these were evaluated terms size/weight specimens, for Exp 3, concentrations moisture, ash,...
A new approach to process Saccharina latissima algal biomass was developed using sodium citrate and a polyvalent cation-specific resin sequentially extract the alginate into several usable fractions. The fractionation performed in cyclic manner, utilizing stepwise removal of native ions present algae isolate fractions with different solubility presence these ions. Sodium used concentrations extraction solution remove cations adjust liberation while AMBERLITE IRC718 added further regenerate...
A series of alginate fractions with significant differences in molecular weight and uronic acid compositions were produced by consecutive fractionation converted to thin strong cross-linked polymer filaments via extrusion into calcium, aluminum, or polyaluminum (PolyAl) polyvalent solutions followed drawing drying. Models elaborated relate the composition tensile performance both wet gel filament dry states. The model was compared theory unidirectional elongation charged polyelectrolyte gels...
Linseed oil was graft modified with maleic anhydride and introduced into alginate by co-extrusion, producing hybrid filaments. A straightforward grafting of onto the backbone produced oil. Additional esterification n-dodecanol also investigated. The structures oils were verified 2D-NMR. mixed extruded CaCl2, forming thin filaments diameters in 130–260 μm range. impact integration assessed, special emphasis on stress-at-break, compared to values predicted an empirical model relating “stress...