Publications
NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.
2026
Sammendrag
Palmaria palmata is a protein-rich red seaweed containing essential amino acids and bioactive compounds with potential applications in aquaculture nutrition and fish health. In this study, liquid extracts enriched in soluble compounds were obtained through mechanical fractionation of P. palmata. The recovered fractions were characterized for their lipid and amino acid composition and evaluated for cytotoxic and immunomodulatory response in salmon head kidney-derived SHK-1 cell line (Salmo salar) cell lines as a first step towards assessing their suitability as functional ingredients for aquaculture feed applications.
Sammendrag
There is growing interest in simple and resource-efficient recovery strategies that maximize pigment yield while minimizing chemical inputs and processing intensity. Mechanical fractionation using twin-screw press offers a promising approach by releasing soluble intracellular compounds into a liquid fraction while simultaneously generating a solid fraction that can be further valorized. In this study, freshly harvested P. palmata biomass was mechanically fractionated prior to ammonium sulfate precipitation, dialysis, and freeze-drying to produce a phycoerythrin. This approach aims to maximize R-PE recovery through low-input processing while reducing chemical consumption and energy requirements compared with conventional extraction methods. The distribution and recovery of R-PE within the generated process streams were evaluated to assess the potential of mechanical fractionation as a primary recovery step in phycoerythrin extraction.
Sammendrag
Brown seaweeds are rich in sulphated polysaccharides, minerals, proteins, and other bioactive compounds suitable for cascading biorefinery. Ascophyllum nodosum, an abundant North Atlantic species, contains fucoidan, laminarin, and mannitol with potential food and feed applications. Efficient utilisation requires fractionation strategies that recover target compounds while enabling further valorisation of the remaining biomass. Here, a food-compatible process using water and citric acid was applied to recover fucoidan- and alginate-rich fractions and retain residual biomass for further use. Material distribution, concentration efficiency, and recovery were evaluated across the process, which recovered 57.3% of the initial dry biomass as value-added products.
Sammendrag
Mechanical dewatering using a twin-screw press not only reduces biomass moisture content but also facilitates the partitioning of valuable biochemical components between liquid and solid fractions. While mechanical dewatering is commonly applied as a low-energy pre-treatment step, its potential as a fractionation strategy for brown seaweed biorefinery remains largely unexplored. Pressure-driven separation generates a liquid fraction containing soluble compounds and a solid fraction enriched in structural biomass components. In this study, different pre-treatments were combined with twin-screw pressing to evaluate their influence on the distribution of protein-bound amino acids, fucose, and uronic acids in Alaria esculenta. The results demonstrated distinct partitioning patterns, with higher concentrations of all three component groups generally retained in the solid fraction, highlighting the potential of mechanical dewatering as an initial fractionation step in cascading seaweed biorefinery. This approach aims to establish mechanical dewatering as a scalable, low-energy entry point for downstream processing, supporting efficient valorization and zero-waste processing.
Sammendrag
Brown seaweed A.nodosum has been widely used for feed and biostimulant purposes for many years. However, due to its high-water content (ranging >80% MC) it presents challenges like increasing costs of transportation and storage for downstream processing. Therefore, an effective dewatering step is essential to reduce the moisture content, concentrate the biomass and improve handling and processing efficiency. Mechanical dewatering is commonly applied as a pretreatment step in biorefining as it removes readily mobile water and reduces the moisture available for microbial deterioration during handling and storage. However, the efficiency of mechanical dewatering can be limited by the strong water-holding capacity of seaweed tissues and cell-wall components, resulting in substantial residual moisture in the pressed biomass. In this context, this study evaluates calcium chloride (CaCl2 ) and magnesium chloride (MgCl2 ) as pretreatment agents prior to hydraulic pressing of A. nodosum, assessing their effects on dewatering efficiency and the partitioning of protein-bound amino acids between the liquid and solid fractions.
Forfattere
Lampros LamprinakisSammendrag
The valorization of seafood by-products is often framed as a technical opportunity, yet adoption in practice depends on whether small and medium-sized enterprises (SMEs) can embed new systems in their operational, economic, spatial, and regulatory realities. Drawing on survey-based evidence from Greek fisheries and seafood enterprises, the analysis identifies key operational and economic constraints and translates them into a configurational model of adoption credibility for blue SMEs. In the proposed TIDE framework, adoption credibility depends on alignment across four distinct dimensions: Technological Fit, Institutional Enablement, Deployment Fit, and Economic-Organizational Fit. The framework links firm-level conditions with techno-economic performance metrics, including cost–benefit indicators (e.g., CAPEX/OPEX per unit, avoided disposal costs, payback period) and system optimization variables, such as throughput variability and process efficiency. The theoretical insights illustrate that optimal valorization outcomes depend on the alignment between system design and SME-specific constraints, particularly in relation to deployment models (on-site units, shared hubs, and mobile services). The study provides a structured approach for integrating cost–benefit analysis and technical optimization with real-world adoption conditions, offering practical guidance for designing scalable, low-CAPEX/OPEX valorization solutions.
Forfattere
Karen Ane Frøyland SkjennumSammendrag
The widespread use of per- and polyfluorinated substances (PFAS) over the past several decades has resulted in extensive soil contamination. Soil serves as a significant reservoir and a potential long-term source of PFAS. While the high stability and persistence of PFAS facilitates accumulation in soil, some PFAS, such as several perfluoroalkyl acids (PFAAs), exhibit relatively high mobility allowing them to leach into the surrounding environment and possibly travel long distances. Remediation of contaminated sites is necessary to avoid severe environmental and human impacts. Soil stabilization represents a non-destructive soil remediation method which involves incorporation of binding materials (sorbents) into the contaminated soil to reduce contaminant leaching and bioavailability.
Sammendrag
No abstract has been registered
Forfattere
Sailee P. Sakhalkar Nico Blüthgen Laura A. Burkle Paul CaraDonna Bo Dalsgaard Carsten F. Dormann Christopher N. Kaiser-Bunbury Tiffany M. Knight Jeff Ollerton Julian Resasco Matthias Schleuning Diego P. Vázquez Rita N. Afagwu Ruben Alarcón Felipe W. Amorim Marsal D. Amorim Dominik Anýž Blanca Arroyo-Correa Maddi Artamendi Zeynep Atalay Justin A. Bain Katherine C. R. Baldock Gavin Ballantyne Caio S. Ballarin Behnaz Balmaki Michael Bartoš Vasuki Belavadi Paolo Biella Anne D. Bjorkman João Paulo Raimundo Borges Jordi Bosch Camila Bosenbecker Stephane Boyer Karin T. Burghardt Edson Cardona Quebin Bosbely Casiá-Ajché Anthony M. T. Castagna Ferhat Celep Melanie N. Chisté Yann Clough James M. Cook Liam P. Crowther Fabiana D. Reis Luis P. da Silva Wesley Dáttilo Valeska De Cárdenas Joan Díaz-Calafat Lynn V. Dicks Rye Dickson Marion L. Donald Lee A. Dyer Fairo F. Dzekashu Natalia Escobedo Kenefic Tom M. Fayle Laura L. Figueroa Jan Filip Raúl García-Camacho Amy-Marie Gilpin Luis Giménez-Benavides Ingrid N. Gomes Heather Grab Ingo Grass Travis J. Guy Veronica Hederström Carlos Hernández-Castellano Sandra Hervías-Parejo Andrea Holzschuh Sebastian Hopfenmüller José M. Iriondo Štěpán Janeček Jana Jersáková Shalene Jha Aphrodite Kantsa Tamar Keasar Liam Kendall Yannick Klomberg Ishmeal N. Kobe Theresia Krausl Patricia Landaverde Carlos Lara-Romero H. Michael G. Lattorff Felipe Librán-Embid Tial C. Ling Sissi Lozada-Gobilard Francis Ewome Luma Pedro Luna Ludmilla M. S. Aguiar Ana Carolina Pereira Machado Isabel C. Machado Ainhoa Magrach Fabienne Maihoff Gabriel Marcacci Carlos Martínez-Núñez Pietro K. Maruyama Natsuki Matsubara Maggie Mayberry Marco A. R. Mello Ugo Mendes Diniz Marcos Méndez Jan E. J. Mertens Rubén Milla Javier Morente-López Tarcila L. Nadia Georgios Nakas Anders Nielsen Alon Ornai Sergio Osorio-Canadas Wilhelm H. A. Osterman Todd M. Palmer Theodora Petanidou Christian W. W. Pirk Kit S. Prendergast Richard Primack Luis M. Primo Marina Querejeta Zelma Quirino André Rodrigo Rech Sara Reverté Pedro J. Rey Léo C. Rocha-Filho Anselm Rodrigo Domínguez Masoud A. Rostami Avery L. Russell Silvia Santamaría Francisco A. R. Santos Takehiro Sasaki Manu E. Saunders Victor H. D. Silva Michael P. Simanonok Antigoni Sounapoglou Ingolf Steffan-Dewenter Sam Tarrant Rubén Torices Anna Traveset Teja Tscharntke Guillermo Uceda-Gómez Katherine R. Urban-Mead Casper J. van der Kooi Catrin Westphal Abdullahi Yusuf Robert TropekSammendrag
No abstract has been registered
Forfattere
Michael Dondrup Atle Ove Martinussen Lisa Karine Haugland Jonas Brandenburg Oya Inanli Abdelhameed Elameen David Dolan Sushma Nagaraja Grellscheid Snorre B Hagen Hannes Schroeder Tor Myking Hans Geir EikenRedaktører
Tal DaganSammendrag
Abstract The use of Saccharomyces cerevisiae to ferment alcoholic beverages is an ancient tradition, with genetic evidence indicating origins in Neolithic Asia, although the domestication process of the species is not fully understood. Kveik is a group of traditional yeasts used in farmhouse brewing in western Norway preserved through generations of rural brewing practice. While recent studies have highlighted the distinctiveness of kveik, its precise phylogenetic position, genetic diversity, and domestication history remain unclear. We performed whole-genome sequencing on 64 isolates from 25 traditional brewing cultures from Western Norway selected using cultural heritage criteria and generated telomere-to-telomere assemblies for selected strains. Phylogenomic and population genetic analyses reveal that kveik strains form a paraphyletic and early-diverging group with respect to other domesticated S. cerevisiae strains. Most strains exhibit low diversity among isolates from the same brewing culture, strong geographic clustering, and little evidence of gene flow or admixture. Mitochondrial genomes and Ty1 retrotransposon profiles corroborate this distinct lineage history. We further show that previously reported signals of gene flow between kveik and Asian fermentation strains are likely artifacts caused by population structure and selection. Divergence time estimates suggest that the common ancestor of beer, kveik, and other liquid-phase fermenting strains originated from ancestral populations 4,000 to 8,000 years ago. Our genomic resource sheds light on yeast evolution and domestication. Kveik likely comprises some of the oldest domesticated lineages in continuous use until today, connecting intangible cultural heritage to an early genetic origin.