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  1. Employees

Språkvelger

Norsk

Olav Andreas Aarstad

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Olav Andreas Aarstad

Head Engineer
Department of Biotechnology and Food Science
Faculty of Natural Sciences

olav.a.aarstad@ntnu.no
+4773412243 +4741452642 Sem Sælandsvei 6
About Publications Outreach

About

Areas of speciality/Fields of responsibility

 

Analysis of block structure in native and in vitro epimerized alginates.

Production of well defined alginate oligomers with varying composition.

Structure-function relationship in alginate gels.

Biopolymers in brown seaweed

 

Publications

  • Chronological
  • By category
  • All publications registered in NVA

2026

  • Dussan, Karla; Sandberg Birgersson, Paulina Anna Teresia; Luzzi, Stefania; Aarstad, Olav Andreas; Cobussen-Pool, Esther; Koster, Tim; Wray, Heather E.; Aachmann, Finn Lillelund. (2026) Harnessing Sargassum inundation biomass: Biobased products versus energy valorisation. Algal Research
    Academic article
  • Patwardhan, Chinmay Anirudha; Sørmo, Christopher; Aarstad, Olav Andreas; Li, Yiwen; Kopplin, Georg; Engelen, Aschwin; Aachmann, Finn Lillelund; Bar, Nadav. (2026) Quantitative methods for transforming macroalgal polysaccharides into fermentable sugars: Composition and insights for industrial algal bioprocessing. Algal Research
    Academic article

2025

  • Naknikham, Usuma; Simoni, Gustav; Aarstad, Olav Andreas; Aachmann, Finn Lillelund; Yamini, Aryan; Christensen, Morten Lykkegaard. (2025) High-efficiency lake sediment treatment: integrating biobased polymers with pipe flow mixing. Journal of Water Process Engineering
    Academic article

2024

  • 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. (2024) Changes in food quality attributes of Saccharina latissima following pre-treatments, frozen storage and subsequent thawing. Algal Research
    Academic article
  • 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. (2024) Variations in the chemical composition of Norwegian cultivated brown algae Saccharina latissima and Alaria esculenta based on deployment and harvest times. Algal Research
    Academic article
  • Gravdahl, Mina; Aarstad, Olav Andreas; Petersen, Agnes Beenfeldt; Karlsen, Stina Grønbeck; Donati, Ivan; Czjzek, Mirjam; Åstrand, Ove Alexander Høgmoen; Rye, Philip D.; Tøndervik, Anne; Sletta, Håvard. (2024) A chemo-enzymatic method for preparation of saturated oligosaccharides from alginate and other uronic acid-containing polysaccharides. Carbohydrate Polymers
    Academic article

2023

  • Pritchard, Manon F.; Powell, Lydia C.; Adams, Jennifer Y. M.; Menzies, Georgina; Khan, Saira; Tøndervik, Anne; Sletta, Håvard; Aarstad, Olav Andreas; Skjåk-Bræk, Gudmund; McKenna, Stephen. (2023) Structure–Activity Relationships of Low Molecular Weight Alginate Oligosaccharide Therapy against Pseudomonas aeruginosa. Biomolecules
    Academic article
  • Sandberg Birgersson, Paulina Anna Teresia; Oftebro, Maren; Strand, Wenche Iren; Aarstad, Olav Andreas; Sætrom, Gerd Inger; Sletta, Håvard; Arlov, Øystein; Aachmann, Finn Lillelund. (2023) Sequential extraction and fractionation of four polysaccharides from cultivated brown algae Saccharina latissima and Alaria esculenta. Algal Research
    Academic article
  • Baydin, Tuna; Dille, Morten Johnsen; Aarstad, Olav Andreas; Hattrem, Magnus Nergård; Draget, Kurt Ingar. (2023) The impact of sugar alcohols and sucrose on the physical properties, long-term storage stability, and processability of fish gelatin gels. Journal of Food Engineering
    Academic article
  • Scognamiglio, Francesca; Cok, Michela; Piazza, Francesco; Marsich, Eleonora; Pacor, Sabrina; Aarstad, Olav Andreas; Aachmann, Finn Lillelund; Donati, Ivan. (2023) Hydrogels based on methylated-alginates as a platform to investigate the effect of material properties on cell activity. The role of material compliance. Carbohydrate Polymers
    Academic article

2022

  • Baydin, Tuna; Aarstad, Olav Andreas; Dille, Morten Johnsen; Hattrem, Magnus Nergård; Draget, Kurt Ingar. (2022) Long-term storage stability of type A and type B gelatin gels: The effect of Bloom strength and co-solutes. Food Hydrocolloids
    Academic article

2021

  • Arntzen, Magnus Øverlie; Pedersen, Bjørn; Klau, Leesa Jane; Stokke, Runar; Oftebro, Maren; Antonsen, Simen Gjelseth; Fredriksen, Lasse; Sletta, Håvard; Aarstad, Olav Andreas; Aachmann, Finn Lillelund. (2021) Alginate Degradation: Insights Obtained through Characterization of a Thermophilic Exolytic Alginate Lyase. Applied and Environmental Microbiology
    Academic article

2020

  • Tøndervik, Anne; Aarstad, Olav Andreas; Aune, Randi; Maleki, Susan; Rye, Philip D; Dessen, Arne; Skjåk-Bræk, Gudmund; Sletta, Håvard. (2020) Exploiting mannuronan C-5 epimerases in commercial alginate production. Marine Drugs
    Academic article
  • Stokniene, Joana; Powell, Lydia C.; Aarstad, Olav Andreas; Aachmann, Finn Lillelund; Rye, Philip D; Hill, Katja E.; Thomas, David W.; Ferguson, Elaine L.. (2020) Bi-functional alginate oligosaccharide–polymyxin conjugates for improved treatment of multidrug-resistant gram-negative bacterial infections. Pharmaceutics
    Academic article
  • Gawin, Agnieszka Maria; Tietze, Lisa; Aarstad, Olav Andreas; Aachmann, Finn Lillelund; Brautaset, Trygve; Ertesvåg, Helga. (2020) Functional characterization of three Azotobacter chroococcum alginate-modifying enzymes related to the Azotobacter vinelandii AlgE mannuronan C-5-epimerase family. Scientific Reports
    Academic article

2019

  • Frigols, Belen; Marti, Miguel; Salesa, Beatriz; Hernandez-Oliver, Carolina; Aarstad, Olav Andreas; Ulset, Ann-Sissel Teialeret; Sætrom, Gerd Inger; Aachmann, Finn Lillelund; Serrano-Aroca, Angel. (2019) Graphene oxide in zinc alginate films: Antibacterial activity, cytotoxicity, zinc release, water sorption/diffusion, wettability and opacity. PLOS ONE
    Academic article
  • Varache, Mathieu; Powell, Lydia C.; Aarstad, Olav Andreas; Williams, Thomas L; Wenzel, Margot N; Thomas, David W.; Ferguson, Elaine L.. (2019) Polymer Masked-Unmasked Protein Therapy: Identification of the Active Species after Amylase Activation of Dextrin-Colistin Conjugates. Molecular Pharmaceutics
    Academic article
  • Aarstad, Olav Andreas; Stanisci, Annalucia; Sætrom, Gerd Inger; Tøndervik, Anne; Sletta, Håvard; Aachmann, Finn Lillelund; Skjåk-Bræk, Gudmund. (2019) Biosynthesis and Function of Long Guluronic Acid-Blocks in Alginate Produced by Azotobacter vinelandii. Biomacromolecules
    Academic article
  • Vuoristo, Kiira; Fredriksen, Lasse; Oftebro, Maren; Arntzen, Magnus Øverlie; Aarstad, Olav Andreas; Stokke, Runar; Steen, Ida Helene; Hansen, Line Degn; Schüller, Reidar Barfod; Aachmann, Finn Lillelund. (2019) Production, characterization, and application of an alginate lyase, AMOR_PL7A, from hot vents in the Arctic mid-ocean ridge. Journal of Agricultural and Food Chemistry
    Academic article

2018

  • Stanisci, Annalucia; Aarstad, Olav Andreas; Tøndervik, Anne; Sletta, Håvard; Dypås, Lene Brattsti; Skjåk-Bræk, Gudmund; Aachmann, Finn Lillelund. (2018) Overall size of mannuronan C5-Epimerases influences their ability to epimerize modified alginates and alginate gels. Carbohydrate Polymers
    Academic article
  • Wang, Damao; Aarstad, Olav Andreas; Li, Jing; McKee, Lauren S.; Sætrom, Gerd Inger; Vyas, Anisha; Srivastava, Vaibhav; Aachmann, Finn Lillelund; Bulone, Vincent; Hsieh, Yves S. Y.. (2018) Preparation of 4-deoxy-L-erythro-5-hexoseulose uronic acid (DEH) and guluronic acid-rich alginate using a unique exo-alginate lyase from Thalassotalea crassostreae. Journal of Agricultural and Food Chemistry
    Academic article

2017

  • Aarstad, Olav Andreas; Heggset, Ellinor Bævre; Pedersen, Ina S.; Bjørnøy, Sindre Hove; Syverud, Kristin; Strand, Berit Løkensgard. (2017) Mechanical Properties of Composite Hydrogels of Alginate and Cellulose Nanofibrils. Polymers
    Academic article
  • Dunlop, Alex; Bowman, Kate; Aarstad, Olav Andreas; Skjåk-Bræk, Gudmund; Stokke, Bjørn Torger; Round, Andrew N. (2017) Polymer sequencing by molecular machines: a framework for predicting the resolving power of a sliding contact force spectroscopy sequencing method. Nanoscale
    Academic article
  • Lewin, Anna; Zhou, Jinglie; Pham, Vu Thuy Trang; Haugen, Tone; Zeiny, Mohamed El; Aarstad, Olav Andreas; Liebl, Wolfgang; Wentzel, Alexander; Liles, Mark R.. (2017) Novel archaeal thermostable cellulases from an oil reservoir metagenome. AMB Express
    Academic article

2016

  • Felz, Simon; Al-Zuhairy, Salah; Aarstad, Olav Andreas; Loosdrecht, Mark C.M. van; Lin, Yue Mei. (2016) Extraction of structural extracellular polymeric substances from aerobic granular sludge. Journal of Visualized Experiments
    Academic article
  • Bowman, Kate A.; Aarstad, Olav Andreas; Nakamura, Marcela; Stokke, Bjørn Torger; Skjåk-Bræk, Gudmund; Round, Andrew N.. (2016) Single molecule investigation of the onset and minimum size of the calcium-mediated junction zone in alginate. Carbohydrate Polymers
    Academic article
  • Aarstad, Olav Andreas. (2016) Extraction of Structural Extracellular Polymeric Substances from Aerobic Granular Sludge. Journal of Visualized Experiments
    Academic article
  • Bowman, Kate; Aarstad, Olav Andreas; Stokke, Bjørn Torger; Skjåk-Bræk, Ola Gudmund; Round, Andrew N. (2016) Sliding Contact Dynamic Force Spectroscopy Method for Interrogating Slow Forming Polymer Cross-Links. Langmuir
    Academic article

2014

  • Buchinger, Edith; Knudsen, Daniel H.; Behrens, Manja A.; Pedersen, Jan Skov; Aarstad, Olav Andreas; Tøndervik, Anne; Valla, Svein; Skjåk-Bræk, Gudmund; Wimmer, Reinhard; Aachmann, Finn Lillelund. (2014) Structural and functional characterization of the R-modules in alginate C-5 epimerases AlgE4 and AlgE6 from Azotobacter vinelandii. Journal of Biological Chemistry
    Academic article
  • Formo, Kjetil Ødegård; Aarstad, Olav Andreas; Skjåk-Bræk, Gudmund; Strand, Berit Løkensgard. (2014) Lyase-catalyzed degradation of alginate in the gelled state: Effect ofgelling ions and lyase specificity. Carbohydrate Polymers
    Academic article

2013

  • Aarstad, Olav Andreas; Strand, Berit Løkensgard; Klepp-Andersen, Lise Mari; Skjåk-Bræk, Gudmund. (2013) Analysis of G-Block Distributions and Their Impact on Gel Properties of in Vitro Epimerized Mannuronan. Biomacromolecules
    Academic article
  • Aarstad, Olav Andreas. (2013) Alginate sequencing: Block distribution in alginates and its impact on macroscopic properties. Norges teknisk-naturvitenskapelige universitet
    Doctoral thesis
  • Khong, Thang Trung; Aarstad, Olav Andreas; Skjåk-Bræk, Gudmund; Draget, Kurt Ingar; Vårum, Kjell Morten. (2013) Gelling Concept Combining Chitosan and Alginate - Proof of Principle. Biomacromolecules
    Academic article

2012

  • Aarstad, Olav Andreas; Tøndervik, Anne; Sletta, Håvard; Skjåk-Bræk, Gudmund. (2012) Alginate sequencing: An analysis of block distribution in alginates using specific alginate degrading enzymes. Biomacromolecules
    Academic article

2010

  • Tøndervik, Anne; Klinkenberg, Geir; Aarstad, Olav Andreas; Drabløs, Finn; Ertesvåg, Helga; Ellingsen, Trond Erling; Skjåk-Bræk, Gudmund; Valla, Svein; Sletta, Håvard. (2010) Isolation of Mutant Alginate Lyases with Cleavage Specificity for Di-guluronic Acid Linkages. Journal of Biological Chemistry
    Academic article

2009

  • Ballance, Simon; Aarstad, Olav Andreas; Aachmann, Finn Lillelund; Skjåk-Bræk, Gudmund; Christensen, Bjørn Erik. (2009) Preparation of high purity monodisperse oligosaccharides derived from mannuronan by size-exclusion chromatography followed by semi-preparative high-performance anion-exchange chromatography with pulsed amperometric detection. Carbohydrate Research
    Academic article
  • Gimmestad, Martin; Ertesvåg, Helga; Heggeset, Tonje Marita; Aarstad, Olav Andreas; Svanem, Britt Iren Glærum; Valla, Svein. (2009) Characterization of Three New Azotobacter vinelandii Alginate Lyases, One of Which Is Involved in Cyst Germination. Journal of Bacteriology
    Academic article

2005

  • Ballance, Simon; Holtan, Synnøve; Aarstad, Olav Andreas; Sikorski, Pawel T.; Skjåk-Bræk, Gudmund; Christensen, Bjørn Erik. (2005) Application of high-performance anion-exchange chromatography with pulsed amperometric detection and statistical analysis to study oligosaccharide distributions - a complementary method to investigate the structure and some properties of alginates. Journal of Chromatography A
    Academic article

Journal publications

  • Dussan, Karla; Sandberg Birgersson, Paulina Anna Teresia; Luzzi, Stefania; Aarstad, Olav Andreas; Cobussen-Pool, Esther; Koster, Tim; Wray, Heather E.; Aachmann, Finn Lillelund. (2026) Harnessing Sargassum inundation biomass: Biobased products versus energy valorisation. Algal Research
    Academic article
  • Patwardhan, Chinmay Anirudha; Sørmo, Christopher; Aarstad, Olav Andreas; Li, Yiwen; Kopplin, Georg; Engelen, Aschwin; Aachmann, Finn Lillelund; Bar, Nadav. (2026) Quantitative methods for transforming macroalgal polysaccharides into fermentable sugars: Composition and insights for industrial algal bioprocessing. Algal Research
    Academic article
  • Naknikham, Usuma; Simoni, Gustav; Aarstad, Olav Andreas; Aachmann, Finn Lillelund; Yamini, Aryan; Christensen, Morten Lykkegaard. (2025) High-efficiency lake sediment treatment: integrating biobased polymers with pipe flow mixing. Journal of Water Process Engineering
    Academic article
  • 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. (2024) Changes in food quality attributes of Saccharina latissima following pre-treatments, frozen storage and subsequent thawing. Algal Research
    Academic article
  • Aarstad, Olav Andreas; Tøndervik, Anne; Sletta, Håvard; Skjåk-Bræk, Gudmund. (2012) Alginate sequencing: An analysis of block distribution in alginates using specific alginate degrading enzymes. Biomacromolecules
    Academic article
  • Pritchard, Manon F.; Powell, Lydia C.; Adams, Jennifer Y. M.; Menzies, Georgina; Khan, Saira; Tøndervik, Anne; Sletta, Håvard; Aarstad, Olav Andreas; Skjåk-Bræk, Gudmund; McKenna, Stephen. (2023) Structure–Activity Relationships of Low Molecular Weight Alginate Oligosaccharide Therapy against Pseudomonas aeruginosa. Biomolecules
    Academic article
  • Sandberg Birgersson, Paulina Anna Teresia; Oftebro, Maren; Strand, Wenche Iren; Aarstad, Olav Andreas; Sætrom, Gerd Inger; Sletta, Håvard; Arlov, Øystein; Aachmann, Finn Lillelund. (2023) Sequential extraction and fractionation of four polysaccharides from cultivated brown algae Saccharina latissima and Alaria esculenta. Algal Research
    Academic article
  • Felz, Simon; Al-Zuhairy, Salah; Aarstad, Olav Andreas; Loosdrecht, Mark C.M. van; Lin, Yue Mei. (2016) Extraction of structural extracellular polymeric substances from aerobic granular sludge. Journal of Visualized Experiments
    Academic article
  • Ballance, Simon; Aarstad, Olav Andreas; Aachmann, Finn Lillelund; Skjåk-Bræk, Gudmund; Christensen, Bjørn Erik. (2009) Preparation of high purity monodisperse oligosaccharides derived from mannuronan by size-exclusion chromatography followed by semi-preparative high-performance anion-exchange chromatography with pulsed amperometric detection. Carbohydrate Research
    Academic article
  • Frigols, Belen; Marti, Miguel; Salesa, Beatriz; Hernandez-Oliver, Carolina; Aarstad, Olav Andreas; Ulset, Ann-Sissel Teialeret; Sætrom, Gerd Inger; Aachmann, Finn Lillelund; Serrano-Aroca, Angel. (2019) Graphene oxide in zinc alginate films: Antibacterial activity, cytotoxicity, zinc release, water sorption/diffusion, wettability and opacity. PLOS ONE
    Academic article
  • Tøndervik, Anne; Aarstad, Olav Andreas; Aune, Randi; Maleki, Susan; Rye, Philip D; Dessen, Arne; Skjåk-Bræk, Gudmund; Sletta, Håvard. (2020) Exploiting mannuronan C-5 epimerases in commercial alginate production. Marine Drugs
    Academic article
  • Aarstad, Olav Andreas; Heggset, Ellinor Bævre; Pedersen, Ina S.; Bjørnøy, Sindre Hove; Syverud, Kristin; Strand, Berit Løkensgard. (2017) Mechanical Properties of Composite Hydrogels of Alginate and Cellulose Nanofibrils. Polymers
    Academic article
  • Arntzen, Magnus Øverlie; Pedersen, Bjørn; Klau, Leesa Jane; Stokke, Runar; Oftebro, Maren; Antonsen, Simen Gjelseth; Fredriksen, Lasse; Sletta, Håvard; Aarstad, Olav Andreas; Aachmann, Finn Lillelund. (2021) Alginate Degradation: Insights Obtained through Characterization of a Thermophilic Exolytic Alginate Lyase. Applied and Environmental Microbiology
    Academic article
  • Buchinger, Edith; Knudsen, Daniel H.; Behrens, Manja A.; Pedersen, Jan Skov; Aarstad, Olav Andreas; Tøndervik, Anne; Valla, Svein; Skjåk-Bræk, Gudmund; Wimmer, Reinhard; Aachmann, Finn Lillelund. (2014) Structural and functional characterization of the R-modules in alginate C-5 epimerases AlgE4 and AlgE6 from Azotobacter vinelandii. Journal of Biological Chemistry
    Academic article
  • Aarstad, Olav Andreas; Strand, Berit Løkensgard; Klepp-Andersen, Lise Mari; Skjåk-Bræk, Gudmund. (2013) Analysis of G-Block Distributions and Their Impact on Gel Properties of in Vitro Epimerized Mannuronan. Biomacromolecules
    Academic article
  • Bowman, Kate A.; Aarstad, Olav Andreas; Nakamura, Marcela; Stokke, Bjørn Torger; Skjåk-Bræk, Gudmund; Round, Andrew N.. (2016) Single molecule investigation of the onset and minimum size of the calcium-mediated junction zone in alginate. Carbohydrate Polymers
    Academic article
  • Stokniene, Joana; Powell, Lydia C.; Aarstad, Olav Andreas; Aachmann, Finn Lillelund; Rye, Philip D; Hill, Katja E.; Thomas, David W.; Ferguson, Elaine L.. (2020) Bi-functional alginate oligosaccharide–polymyxin conjugates for improved treatment of multidrug-resistant gram-negative bacterial infections. Pharmaceutics
    Academic article
  • Gawin, Agnieszka Maria; Tietze, Lisa; Aarstad, Olav Andreas; Aachmann, Finn Lillelund; Brautaset, Trygve; Ertesvåg, Helga. (2020) Functional characterization of three Azotobacter chroococcum alginate-modifying enzymes related to the Azotobacter vinelandii AlgE mannuronan C-5-epimerase family. Scientific Reports
    Academic article
  • 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. (2024) Variations in the chemical composition of Norwegian cultivated brown algae Saccharina latissima and Alaria esculenta based on deployment and harvest times. Algal Research
    Academic article
  • Aarstad, Olav Andreas. (2016) Extraction of Structural Extracellular Polymeric Substances from Aerobic Granular Sludge. Journal of Visualized Experiments
    Academic article
  • Varache, Mathieu; Powell, Lydia C.; Aarstad, Olav Andreas; Williams, Thomas L; Wenzel, Margot N; Thomas, David W.; Ferguson, Elaine L.. (2019) Polymer Masked-Unmasked Protein Therapy: Identification of the Active Species after Amylase Activation of Dextrin-Colistin Conjugates. Molecular Pharmaceutics
    Academic article
  • Formo, Kjetil Ødegård; Aarstad, Olav Andreas; Skjåk-Bræk, Gudmund; Strand, Berit Løkensgard. (2014) Lyase-catalyzed degradation of alginate in the gelled state: Effect ofgelling ions and lyase specificity. Carbohydrate Polymers
    Academic article
  • Stanisci, Annalucia; Aarstad, Olav Andreas; Tøndervik, Anne; Sletta, Håvard; Dypås, Lene Brattsti; Skjåk-Bræk, Gudmund; Aachmann, Finn Lillelund. (2018) Overall size of mannuronan C5-Epimerases influences their ability to epimerize modified alginates and alginate gels. Carbohydrate Polymers
    Academic article
  • Bowman, Kate; Aarstad, Olav Andreas; Stokke, Bjørn Torger; Skjåk-Bræk, Ola Gudmund; Round, Andrew N. (2016) Sliding Contact Dynamic Force Spectroscopy Method for Interrogating Slow Forming Polymer Cross-Links. Langmuir
    Academic article
  • Gravdahl, Mina; Aarstad, Olav Andreas; Petersen, Agnes Beenfeldt; Karlsen, Stina Grønbeck; Donati, Ivan; Czjzek, Mirjam; Åstrand, Ove Alexander Høgmoen; Rye, Philip D.; Tøndervik, Anne; Sletta, Håvard. (2024) A chemo-enzymatic method for preparation of saturated oligosaccharides from alginate and other uronic acid-containing polysaccharides. Carbohydrate Polymers
    Academic article
  • Wang, Damao; Aarstad, Olav Andreas; Li, Jing; McKee, Lauren S.; Sætrom, Gerd Inger; Vyas, Anisha; Srivastava, Vaibhav; Aachmann, Finn Lillelund; Bulone, Vincent; Hsieh, Yves S. Y.. (2018) Preparation of 4-deoxy-L-erythro-5-hexoseulose uronic acid (DEH) and guluronic acid-rich alginate using a unique exo-alginate lyase from Thalassotalea crassostreae. Journal of Agricultural and Food Chemistry
    Academic article
  • Baydin, Tuna; Aarstad, Olav Andreas; Dille, Morten Johnsen; Hattrem, Magnus Nergård; Draget, Kurt Ingar. (2022) Long-term storage stability of type A and type B gelatin gels: The effect of Bloom strength and co-solutes. Food Hydrocolloids
    Academic article
  • Baydin, Tuna; Dille, Morten Johnsen; Aarstad, Olav Andreas; Hattrem, Magnus Nergård; Draget, Kurt Ingar. (2023) The impact of sugar alcohols and sucrose on the physical properties, long-term storage stability, and processability of fish gelatin gels. Journal of Food Engineering
    Academic article
  • Tøndervik, Anne; Klinkenberg, Geir; Aarstad, Olav Andreas; Drabløs, Finn; Ertesvåg, Helga; Ellingsen, Trond Erling; Skjåk-Bræk, Gudmund; Valla, Svein; Sletta, Håvard. (2010) Isolation of Mutant Alginate Lyases with Cleavage Specificity for Di-guluronic Acid Linkages. Journal of Biological Chemistry
    Academic article
  • Aarstad, Olav Andreas; Stanisci, Annalucia; Sætrom, Gerd Inger; Tøndervik, Anne; Sletta, Håvard; Aachmann, Finn Lillelund; Skjåk-Bræk, Gudmund. (2019) Biosynthesis and Function of Long Guluronic Acid-Blocks in Alginate Produced by Azotobacter vinelandii. Biomacromolecules
    Academic article
  • Ballance, Simon; Holtan, Synnøve; Aarstad, Olav Andreas; Sikorski, Pawel T.; Skjåk-Bræk, Gudmund; Christensen, Bjørn Erik. (2005) Application of high-performance anion-exchange chromatography with pulsed amperometric detection and statistical analysis to study oligosaccharide distributions - a complementary method to investigate the structure and some properties of alginates. Journal of Chromatography A
    Academic article
  • Dunlop, Alex; Bowman, Kate; Aarstad, Olav Andreas; Skjåk-Bræk, Gudmund; Stokke, Bjørn Torger; Round, Andrew N. (2017) Polymer sequencing by molecular machines: a framework for predicting the resolving power of a sliding contact force spectroscopy sequencing method. Nanoscale
    Academic article
  • Vuoristo, Kiira; Fredriksen, Lasse; Oftebro, Maren; Arntzen, Magnus Øverlie; Aarstad, Olav Andreas; Stokke, Runar; Steen, Ida Helene; Hansen, Line Degn; Schüller, Reidar Barfod; Aachmann, Finn Lillelund. (2019) Production, characterization, and application of an alginate lyase, AMOR_PL7A, from hot vents in the Arctic mid-ocean ridge. Journal of Agricultural and Food Chemistry
    Academic article
  • Scognamiglio, Francesca; Cok, Michela; Piazza, Francesco; Marsich, Eleonora; Pacor, Sabrina; Aarstad, Olav Andreas; Aachmann, Finn Lillelund; Donati, Ivan. (2023) Hydrogels based on methylated-alginates as a platform to investigate the effect of material properties on cell activity. The role of material compliance. Carbohydrate Polymers
    Academic article
  • Lewin, Anna; Zhou, Jinglie; Pham, Vu Thuy Trang; Haugen, Tone; Zeiny, Mohamed El; Aarstad, Olav Andreas; Liebl, Wolfgang; Wentzel, Alexander; Liles, Mark R.. (2017) Novel archaeal thermostable cellulases from an oil reservoir metagenome. AMB Express
    Academic article
  • Khong, Thang Trung; Aarstad, Olav Andreas; Skjåk-Bræk, Gudmund; Draget, Kurt Ingar; Vårum, Kjell Morten. (2013) Gelling Concept Combining Chitosan and Alginate - Proof of Principle. Biomacromolecules
    Academic article
  • Gimmestad, Martin; Ertesvåg, Helga; Heggeset, Tonje Marita; Aarstad, Olav Andreas; Svanem, Britt Iren Glærum; Valla, Svein. (2009) Characterization of Three New Azotobacter vinelandii Alginate Lyases, One of Which Is Involved in Cyst Germination. Journal of Bacteriology
    Academic article

Student thesis or dissertation

  • Aarstad, Olav Andreas. (2013) Alginate sequencing: Block distribution in alginates and its impact on macroscopic properties. Norges teknisk-naturvitenskapelige universitet
    Doctoral thesis

Outreach

2023

  • Conference lecture
    Montero, Ruth; Blihovde, Veronica Fitzpatrick; Klau, Leesa Jane; Hooft, Jamie Marie; Morales-Lange, Byron; Aarstad, Olav Andreas; Aachmann, Finn Lillelund; Tøndervik, Anne; Sletta, Håvard; Mydland, Liv Torunn. (2023) IMMUNOMODULATORY EFFECTS OF LAMINARIN FROM Laminaria hyperborea ON ATLANTIC SALMON LEUKOCYTES– FIRST STEPS TOWARDS NOVEL FUNCTIONAL FEED APPLICATION FOR SALMON. Aquaculture Europe 2023
  • Conference poster
    Montero, Ruth; Blihovde, Veronica Fitzpatrick; Klau, Leesa Jane; Hooft, Jamie Marie; Morales-Lange, Byron; Aarstad, Olav Andreas; Aachmann, Finn Lillelund; Tøndervik, Anne; Sletta, Håvard; Mydland, Liv Torunn. (2023) First insights into the immunomodulatory effects of the b-glucan Laminarin on Atlantic salmon leukocytes. 15th Congress of the International Society for Developmental and Comparative Immunology (ISDCI)

2022

  • Conference poster
    Montero, Ruth; Blihovde, Veronica Fitzpatrick; Fu, Lele; Klau, Leesa Jane; Aarstad, Olav Andreas; Aachmann, Finn Lillelund; Tøndervik, Anne; Sletta, Håvard; Mydland, Liv Torunn; Øverland, Margareth. (2022) Laminaria hyperborea-derived laminarin – immunomodulatory effects in Atlantic salmon cells. 4th Congress of Fish and Shellfish Immunology

2021

  • Conference poster
    Kjesbu, Joachim Sebastian; Aarstad, Olav Andreas; Strand, Wenche Iren; Skjåk-Bræk, Gudmund; Aachmann, Finn Lillelund; Strand, Berit Løkensgard. (2021) Acetylation of alginate in the gel state. ScSB 2021

2019

  • Conference poster
    Tøndervik, Anne; Arlov, Øystein; Aachmann, Finn Lillelund; Aarstad, Olav Andreas; Tuvikene, Rando; Ostafe, Vasile; Bouriotis, Vassilis; Tomatsidou, Anastasia; Hjelland, Finn; Rye, Phillip. (2019) Biotechnological Tools implementation for New wound healing Applications of byproducts from the crustacean Seafood Processing industry. Bioprosp 2019

2017

  • Lecture
    Sætrom, Gerd Inger; Gaardløs, Margrethe; Courtade, Gaston; Aarstad, Olav Andreas. (2017) Proteindesign. Forskningstorget

2015

  • Conference poster
    Aarstad, Olav Andreas; Sætrom, Gerd Inger; Strand, Berit Løkensgard; Strand, Wenche Iren; Skjåk-Bræk, Gudmund. (2015) Alginate analysis and structure-function relationships in alginate gels. ESBP2015 - 8th European Symposium on Biopolymers
  • Conference lecture
    Skjåk-Bræk, Gudmund; Aarstad, Olav Andreas; Strand, Berit Løkensgard; Tøndervik, Anne. (2015) Alginate Sequencing- Guluronic acid block distribution in native abd enzymatic tailored alginates and thir impact on the macroscopic properties of alginate as biomaterils-. 8th European Symposium on Biopolymers ESBP 2015

2013

  • Conference lecture
    Tøndervik, Anne; Aachmann, Finn Lillelund; Svanem, Britt Iren Glærum; Klinkenberg, Geir; Ellingsen, Trond Erling; Aarstad, Olav Andreas; Ertesvåg, Helga; Valla, Svein; Skjåk-Bræk, Gudmund; Sletta, Håvard. (2013) Directed evolution, high throughput sceening and production of alginate-modifying enzymes with new and targeted properties. 3rd EPNOE International Polysaccharide Conference

2012

  • Conference poster
    Bowman, K.; Aarstad, Olav Andreas; Stokke, Bjørn Torger; Gunning, P.; Mayes, A; Skjåk-Bræk, Gudmund; Round, A.. (2012) Single molecule toolkit for probing polysaccharide interactions. Advances in Single-molecule research for biology&nanoscience. 14th Annual Linz Winter Workshop

2009

  • Conference lecture
    Tøndervik, Anne; Aarstad, Olav Andreas; Sletta, Håvard; Skjåk-Bræk, Gudmund. (2009) Use of high throughput screening technology for development of alginate-modifying enzymes with novel properties. Polysaccharides as a source for advanced materials EPNOE 2009

2008

  • Conference poster
    Aarstad, Olav Andreas; Ntagenda, Denis; Skjåk-Bræk, Gudmund. (2008) Analysis of mannuronic and guluronic acid distribution in natural and in vitro epimerised alginates using novel alginate lyases with high specificity. 24th International carbohydrate symposium

2007

  • Conference poster
    Aarstad, Olav Andreas; Ballance, Simon; Christensen, Bjørn Erik; Skjåk-Bræk, Gudmund. (2007) Application of HPAEC-PAD to derermine the distribution of oligosaccharides in acid hydrolysed alginate with varying composition. 14th European Carbohydrate Symposium

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