Matís Staff

Rósa Jónsdóttir

Group Leader

Group: Bioactive Compounds

Phone: +354 4225109 /

Email: rosa.jonsdottir@matis.is

Focus Areas:

Flavorings, Fats, Desire, Antioxidants, Organics, Bioactive substances, Algae, Food Ingredients

Projects:
Peer-reviewed Articles:
  • Pierrick Stévant, Aðalheiður Ólafsdóttir, Paul Déléris, Justine Dumay, Joël Fleurence, Bergrós Ingadóttir, Rósa Jónsdóttir, Émilie Ragueneau, Céline Rebours, Turid Rustad. Ageing gracefully? Semi-dry storage as a maturation process to develop the sensory characteristics of the edible red seaweed dulse (Palmaria palmata). - (2020). Algal Research, Volume 51,

  • Pierrick Stévant, Aðalheiður Ólafsdóttir, Paul Déléris, Justine Dumay, Joël Fleurence, Bergrós Ingadóttir, Rósa Jónsdóttir, Émilie Ragueneau, Céline Rebours, Turid Rustad. Data on the sensory characteristics and chemical composition of the edible red seaweed dulse (Palmaria palmata) after dry and semi-dry storage. - (2020). Data in Brief, Volume 33,

  • Ana Rotter, Michéle Barbier, et.al.. The Essentials of Marine Biotechnology - (2021). Frontiers in Marine Science, March,

  • Jannicke Fugledal Remme, Guro Møen Tveit, Morten Bondø, Rasa Slizyte, Aðalheiður Ólafsdóttir, Rósa Jónsdóttir, Margrét Geirsdóttir and Ana Karina Carvajal. Valorisation of frozen cod (Gadus morhua) heads, captured by trawl and longline by the oceanic fleet, by enzymatic hydrolysis - (2020). Journal of Aquatic Food Product Technology, Volume 33,

  • Corsetto PA, Montorfano G, Zava S, Colombo I, Ingadottir B, Jonsdottir R, Sveinsdottir K, Rizzo AM. Characterization of Antioxidant Potential of Seaweed Extracts for Enrichment of Convenience Food - (2021). Antioxidants , 9, 249

  • Karadağ A., Hermund DB, Sogaard Jensen LH, Andersen U., Jónsdóttir R., Kristinsson HG, Alasalvar C., Jacobsen C .. Oxidative stability and microstructure of 5% fish-oil-enriched granola bars added natural antioxidants derived from brown alga Fucus vesiculosus: Lipid oxidation in foods and antioxidant application - (2017). European Journal of Lipid Science and Technology, 119(4),

  • Jamnik, P., Istenic, K., Kostomaj, T., Wulff, T., Geirsdóttir, M., Almgren, A., Jónsdóttir, R., Kristinsson, HG, Undeland, I .. Bioactivity of cod and chicken protein hydrolysates before and after in vitro gastrointestinal digestion - (2017). Food Technology and Biotechnology, 55(3), 360-367

  • Roleda, MY, Skjermo, J., Marfaing, H., Jónsdóttir, R., Rebours, C., Gietl, A., Stengel, DB, Nitschke, U .. Iodine content in bulk biomass of wild-harvested and cultivated edible seaweeds: Inherent variations determine species-specific daily allowable consumption - (2018). Food Chemistry, 254, 333-339

  • Hermund, DB, Plaza, M., Turner, C., Jónsdóttir, R., Kristinsson, HG, Jacobsen, C., Nielsen, KF. Structure dependent antioxidant capacity of phlorotannins from Icelandic Fucus vesiculosus by UHPLC-DAD-ECD-QTOFMS - (2018). Food Chemistry, 240, 904-909

  • Bjarnadóttir, M., Aðalbjörnsson, BV, Nilsson, A., Slizyte, R., Roleda, MY, Hreggviðsson, GÓ., Friðjónsson, Ó.H., Jónsdóttir, R., R .. Palmaria palmata as an alternative protein source: enzymatic protein extraction, amino acid composition, and nitrogen-to-protein conversion factor - (2018). Journal of Applied Phycology, 30(3), 2061-2070

  • Roleda, MY, Marfaing, H., Desnica, N., Jónsdóttir, R., Skjermo, J., Rebours, C. Nitschke, U .. Variations in polyphenol and heavy metal contents of wild-harvested and cultivated seaweed bulk biomass: Health risk assessment and implication for food applications - (2019). Food Control, 95, 121-134

  • Hermund, D., Jacobsen, C., Chronakis, IS, Pelay, A., Sen Yu, Busolo, M., Jose M. Lagaron, JM, Jónsdóttir, R., Kristinsson, HG, Akoh, CC, García-Moreno , PJ. Stabilization of Fish Oil-Loaded Electrosprayed Capsules with Seaweed and Commercial NaturalAntioxidants: Effect on the Oxidative Stability of Capsule-Enriched Mayonnaise - (2019). European Journal of Lipid Science and Technology, 121(4),

  • Bak, UG, Wirenfeldt Nielsen C., Marinho, GS, Gregersen, Ó., Jónsdóttir, R., Løvstad Holdt, S .. The seasonal variation in nitrogen amino acids protein and nitrogen-to-protein conversion factor of commercially cultivated Faroese Saccharina latissimi - (2019). Algal Research, 42 (September), 101576

  • Poyato C., Raagaard Thomsen B., Hermund DB, Ansorena D., Astiasaran I., Jónsdóttir R., Kristinsson, HG, Jacobsen C .. Antioxidant effect of water and acetone extracts of Fucus vesiculosuson oxidative stability of skin care emulsions: Seaweed extracts in skin care products - (2017). European Journal of Lipid Science and Technology, 119(3),

  • Adalbjornsson BV, Jonsdottir R .. Enzyme-Enhanced Extraction of Antioxidant Ingredients from Algae - (2016). Methods in molecular biology, 1308, 145-150

  • Honold PJ, Jacobsen C., Jónsdóttir R., Kristinsson HG, Hermund DB. Potential seaweed-based food ingredients to inhibit lipid oxidation in fish-oil-enriched mayonnaise - (2016). European Food Research and Technology, 24, 571-584

  • Jonsdottir, R., Geirsdottir, M., Hamaguchi, PY, Jamnik, P., Kristinsson, HG, Undeland, I .. The ability of in vitro antioxidant assays to predict the efficiency of a cod protein hydrolyzate and brown seaweed extract to prevent oxidation in marine food model systems - (2016).  Journal of the Science of Food and Agriculture, 96(6), 2125-2135

  • Honold, PJ, Jacobsen, C., Jónsdóttir, R., Kristinsson, HG, Hermund, DB. Potential seaweed-based food ingredients to inhibit lipid oxidation in fish-oil-enriched mayonnaise - (2016). European Food Research and Technology, 242, 571-584

  • Hermund, DB Karadağ, A, Andersen, U., Jonsdóttir, R., Kristinsson, HG, Alasalvar, C., & Jacobsen, C .. Oxidative Stability of Granola Bars Enriched with Multilayered Fish Oil Emulsion in the Presence of Novel Brown Seaweed Based Antioxidants - (2016). Journal of Agricultural and Food Chemistry, 64(44), 8359-8368

  • Larsson K., Istenic K., Wulff T., Jónsdóttir, R., Kristinsson, HG, Freysdóttir, J., Undeland, I., Jamnik, P .. Effect of in vitro digested cod liver oil of different quality on oxidative, proteomic and inflammatory responses in the yeast Saccharomyces cerevisiae and human monocyte-derived dendritic cells - (2015). Journal of the Science of Food and Agriculture, 95(15), 3096-3106

  • Hermund DB, Yeşiltaş R., Honold P., Jónsdóttir R., Kristinsson HG, Jacobse, C .. Characterization and antioxidant evaluation of Icelandic F. vesiculosus extracts in vitro and in fish-oil-enriched milk and mayonnaise - (2015). Journal of Functional Foods, 19 (Part B), 828-841

  • Dellarosa N., Laghi L., Martinsdottir E., Jonsdottir, R., Sveinsdottir, K .. Enrichment of convenience seafood with omega-3 and seaweed extracts: Effect on lipid oxidation - (2015). LWT-Food Science and Technology, 62(1), 746-752

  • Reynisson, E., Marteinsson, V. Th., Jonsdottir, R., Magnusson, SH, Hreggvidsson, GO. Bacterial succession during curing process of a skate (Dipturus batis) and isolation of novel strains - (2012). Journal of Applied Microbiology, 113(2), 329-338

  • Wang, T., Jonsdottir, R., Haiyan, L., Gu, L., Kristinsson, HG, Raghavan, S., Olafsdottir, G.. Antioxidant Capacities of Phlorotannins Extracted from the brown algae Fucus vesiculosus - (2012). Journal of Agricultural and Food Chemistry, 60(23), 5874-5883

  • Tao Wang, Guðrún Ólafsdóttir, Rósa Jónsdóttir, Hördur G. Kristinsson, Ragnar Jóhannsson. Functional and nutraceutical ingredients from marine macroalgae. In: Handbook of Seafood Quality, Safety and Health Applications - (2011). ,, Chapter 42

  • Rósa Jónsdóttir, Kolbrún Sveinsdóttir, Hannes Magnússon, Sigurjón Arason, Kristin Lauritzsen, Kristín Anna Thórarinsdóttir. Flavor and quality characteristics of salted and desalted cod (Gadus morhua) produced by different salting methods - (2011). Journal of Agricultural and Food Chemistry, 59(8), 3893-3904

  • Tao Wang, Rósa Jónsdóttir, Hördur G. Kristinsson, Gudjon Thorkelsson, Charlotte Jacobsen, Patricia Yuca Hamaguchi, and Gudrun Ólafsdóttir. Inhibition of haemoglobin-mediated lipid oxidation in washed cod muscle and cod protein isolates by Fucus vesiculosus extract and fractions - (2010). Food Chemistry, 123, 321-330

  • Guðrún Ólafsdóttir, Rósa Jónsdóttir. Volatile Aroma Compounds in fish. In: Handbook of Seafood and Seafood Products Analysis - (2009). Boca Raton, CRC Press, , 97-120

  • Tao Wang, Rósa Jónsdóttir, Guðrún Ólafsdóttir. Total phenolic compounds, radical scavenging and metal chelation of extracts from Icelandic seaweeds - (2009). Food Chemistry, 116, 240-248

  • Eyjólfur Reynisson, Hélène Liette Lauzon, Hannes Magnússon, Rósa Jónsdóttir, Guðrún Ólafsdottir, Viggó Marteinsson, Guðmundur Óli Hreggviðsson. Bacterial composition and succession during storage of North-Atlantic cod (Gadus morhua) at superchilled temperatures - (2009). BMC Microbiology, 9(1), 250

  • Rósa Jónsdóttir, Guðrún Ólafsdóttir, Erik Chanie, John-Erik Haugen. Volatile compounds suitable for rapid detection as quality indicators of cold smoked salmon (Salmo salar) - (2008). Food Chemistry, 109, 184-195

  • Rosa Jonsdottir, Gudrun Olafsdottir, Sigurður Hauksson and Jon Magnus Einarsson. Flavorants from Seafood Byproducts. Handbook of Food Products Manufacturing: Health, Meat, Milk, Poultry, Seafood, and Vegetables - (2007). John Wiley & Sons, 2, 931-946

  • Rósa Jónsdóttir, Margrét Bragadóttir, Guðrún Ólafsdóttir. The role of volatile compounds in odor development during hemoglobin-mediated oxidation of cod muscle membrane lipids - (2007). Journal of Aquatic Food Product Technology, 16(4), 67-86

  • Reports:
  • FUNGITIME Notkun sveppapróteins í þróun sjálfbærrar og hollrar matvöru // Application of fungi protein in the development of sustainable and healthy food products

  • Ný náttúruleg andoxunarefni úr hafinu / New natural antioxidants from Icelandic marine sources

  • Future Fish: New and innovative ready to use seafood products by the use of 3D printing

  • Taste and pastures. Progress report

  • Grazing on Angelica archangelica and flavor of lamb meat / Grazing on Angelica archangelica and flavor of lamb meat

  • Other projects

    PROMAC - Energy-efficient processing of macroalgae in blue-green value chains

    MacroValue


    Erindi / Oral presentations:

    2020:

    Rósa Jónsdóttir. Seaweed flavor compounds, 2nd Seaweed for Health 2020 virtual program. 24th - 25th August 2020.  

    2019:

    Rósa Jónsdóttir. Applications of macroalgae. Oral presentation at EIT Food Algal Biotechnology Course, Matís, Iceland 23rd - 24th October 2019.

    Rósa Jónsdóttir. Biorefining of micro- and macroalgae. Circular Bioeconomy Days. Denmark, 25th - 27th June 2019. 

    2018:

    Rósa Jónsdóttir. Biotechnological Utilization of Macroalgae. Oral presentation at EIT Food Algal Biotechnology Course, Matís, Iceland 6th November 2018.

    Rósa Jónsdóttir, Kolbrún Sveinsdóttir, Alfons Ramel. Health benefits of seaweed ingredients in nutraceuticals and skincare products. Galway, Ireland, 24th - 26th June 2018.

    Rósa Jónsdóttir. Seaweed as cosmetic ingredients and nutraceuticals. Oral presentation at the Alget Program seaweed industry workshop “Product development, diversification and market development in algae”, Kiel, Germany, 6th-7th June 2018.

    2017:

    Rósa Jónsdóttir. Status, challenges and potentials in Iceland - Seaweed products, markets and SMEs. Alget Workshop, Galway, Ireland, 6th– 7th September 2017

    Rósa Jónsdóttir. Antioxidant extraction from seaweed: state-of-the-art. The SeaRefinery Project - Seaweed Industry Workshop. National Maritime College of Ireland, Cork, 27th June 2017.

    Rósa Jónsdóttir. Processing and product development from large algae. Beach equipment, 13. -14. March 2017.

    2016:

    Rósa Jónsdóttir, Ásta H Pétursdóttir, Björn V Aðalbjörnsson, Hilma E. Bakken, Jóna Freysdóttir, Karl Gunnarsson. Seasonal variance in polyphenol and polysaccharide content in brown seaweed. 22nd International Seaweed Symposium 2016, 19. 24. June 2016.

    Rósa Jónsdóttir. Alget Workshop, Reykjavík, Iceland, January 2016.

    2015:

    Rósa Jónsdóttir. Novel bioactive ingredients and products derived from marine algae. Presentation at NutraMara Conference, 29. -30. June 2015, Dublin, Ireland.

    2013:

    Rósa Jónsdóttir. Bioactive compounds in macro algae. Presentation at BerryEn. Reykjavík. May 15, 2013.

    Rósa Jónsdóttir. State of art. Nordic Algae Network. Gothenburg, Sweden, 28 February 2013.

    2012:

    Rósa Jónsdóttir. Bioactive compounds from Icelandic seaweeds. Presentation at Chemistry Seminar, 16th November 2012

    2011:

    Rósa Jónsdóttir, Þóra Valsdóttir, Hörður G. Kristinsson. Algae, seaweed and health. Presentation at Matvæladagur MNÍ, 18. October 2011.

    Rósa Jónsdóttir. Bioactive compounds from Icelandic seaweeds. Presentation at SWAFAX (Seaweed derived anti-inflammatory agents and antioxidants) meeting, Coleraine, Northern Ireland, 17. June 2011. 

    Hólmfríður Sveinsdóttir, Jón Óskar Jónsson, Patricia Y. Hamaguchi, Halldór Benediktsson, Hördur G. Kristinsson, Rósa Jónsdóttir. Functional ingredients in brown seaweed, Fucus vesiculosus. Presentation: 41 st WEFTA Meeting, 27-30 September 2011, Gothenburg, Sweden.

    Kolbrún Sveinsdóttir, Rósa Jónsdóttir, Margrét Geirsdóttir, Emilia Martinsdóttir. Innovative consumer-oriented product development of enriched seafood. Presentation: 41 st WEFTA Meeting, 27-30 September 2011, Gothenburg, Sweden.

    Patricia Y. Hamaguchi, Hólmfríður Sveinsdóttir, Rósa Jónsdóttir, Hörður G. Kristinsson. Comparison of in vitro chemical and cellular based antioxidant assays on bioactive marine peptides. Presentation: 41 st WEFTA Meeting, 27-30 September 2011, Gothenburg, Sweden.

    Rósa Jónsdóttir. Healthy, bioactive substances from food algae. Paper presented at a seminar: The Beach's Reservoir, Stykkishólmur 26 February 2011.

    2010:

    Rósa Jónsdóttir. Lamb - taste and pastures. Paper presented at the Agricultural Research Council 2010.

    2009:

    G. Thorkelsson, R. Jonsdottir, OTHilmarsson, A. Olafsdottir and E. Martinsdottir. 2009. The influence of grazing time on Angelica archangelica on volatile compounds and sensory quality of meat from pasture lambs. 55th International Congress of Meat Science and Technology, Meat -Muscle, Manufacturing and Meals, 19th August 2009. Presentation.

    Tao Wang, Rósa Jónsdóttir, Hordur G. Kristinsson, Gudjon Þorkelsson, Charlotte Jacobsen, Guðmundur Óli Hreggviðsson and Guðrún Ólafsdóttir. 2009.  Algal polyphenols as novel natural antioxidantsrway. Paper presented at the 3rd Joint Trans-Atlantic Fisheries Technology Conference, TAFT 2009. Sept. 15 - 18. Copenhagen, Denmark.

    2006:
    Guðrún Ólafsdóttir, Rósa Jónsdóttir, Margrét Bragadóttir. 2006. The role of volatile compounds in odor development during haemoglobin-mediated oxidation of cod muscle membrane lipids. 2nd Joint Trans-Atlantic Fisheries Technology Conference. Oct. 29 - Nov. 1st. Quebec City, Canada.

    2005:
    Rósa Jónsdóttir, Guðrún Ólafsdóttir. 2005. Taste and odorants - Research on IFL. Wednesday lecture at IFL, November 29, 2005.

    Rósa Jónsdóttir, Margrét Bragadóttir, Guðmundur Örn Arnarson. 2005. The use of solid-phase microextraction (SPME) to measure changes in volatile compounds during storage of microencapsulated fish oil. 23rd Nordic Lipid Symposium in Reykjavik, Iceland, June 1st -4th, 2005.

    Guðrún Ólafsdóttir, Chanie E, Westad F, Rósa Jónsdóttir, Bazzo S, Labreche S, Marcq P, Lundby F, Haugen JE. 2005. Rapid Control of Smoked Atlantic Salmon Quality by Electronic Nose: Correlation with Classical Evaluation Methods. 11th International Symposium on Olfaction and Electronic Nose, ISOEN2005, April 14-15, Barcelona, Spain.

    2003:
    Rósa Jónsdóttir, Guðrún Ólafsdóttir, Sigurður Hauksson and Jón Magnús Einarsson, 2003. Volatile flavor compounds in seafood flavorants. Presentation by TAFT, First Joint Trans-Atlantic Fisheries Technology Conference, 10-14 June 2003. Reykjavik, Iceland.

    Eva Falch, Rósa Jónsdóttir, S.Arason, KA Þórarinsdóttir, NB Shaw, JP Kerry, C. Malone, JP Berge, J. Dumay, J. Rainuzzo, M. Sandbakken, M. Aursand, 2003. Variation in lipid composition in different by-product from species of the gadidae family. Paper presented at Joint 33rd WEFTA and 48th AFTC meetings. First Joint Trans-Atlantic Fisheries Technology Conference, 10-14 June 2003. Reykjavik, Iceland.

    2002:
    Rósa Jónsdóttir, Kristín Anna Þórarinsdóttir and Sigurjón Arason, 2002. Variations in fat content and fatty acids composition of liver and viscera from different cod species. Lipidforum seminar on By-products in marine processing industry - a lipid source for fish feed and food? Paper presented at Lipidforum, Trondheim, Norway, May 30-31, 2002.

    Rósa Jónsdóttir, Guðrún Ólafsdóttir, Emilía Martinsdóttir and Guðmundur Stefánsson, 2002. Flavor characterization of ripened cod roe. Paper presented at the 32nd meeting of WEFTA, Galway, Ireland from 12 to 15 May 2002.

    2001:
    Ólafsdóttir, G., Li, X., Lauzon, HL & Jónsdóttir, R. 2001. Precision and application of electronic nose measurements for freshness monitoring of redfish ( Sebastes marinus) stored in ice and modified atmosphere bulk storage. Speech at the 31st WEFTA meeting, 27-31 May 2001, Helsinki, Finland.

    1999:
    Rósa Jónsdóttir, 1999. Analyzes of fatty acids in foods. Paper presented at the Analysis Day, Borregaard Sentrallaboratorium, Sarpsborg, Norway, March 23, 1999.

    1998:
    Rósa Jónsdóttir, 1998. The effect of feed fat on pork, examined with fatty acid analyzes and sensory evaluation. Rala lecture, March 1998.

    Reports:

    2015:

    Rósa Jónsdóttir, Ásta Heiðrún Pétursdóttir, Halldór Benediktsson, Hilma B. Eiðsdóttir, Karl Gunnarsson, Jóna Freysdóttir. Ecological impact on bioactive chemicals in brown seaweeds and their utilization. Matís report 08-15. Closed report. Report summary.

    2014:

    Hörður G Kristinsson and Rósa Jónsdóttir. New bioactive skin care products. Matís Report 25-14. Closed report. Report summary.

    2013:

    Rósa Jónsdóttir, Aðalheiður Ólafsdóttir, Ágúst Ingi Skarphéðinsson, Bergrós Ingadóttir, Hörður G. Kristinsson, Jón Óskar Jónsson, Óli Þór Hilmarsson, Torfi Geir Hilmarsson, Þóra Valsdóttir. Use of seaweed as a flavor enhancer in salty products / TASTE - The Application of Edible Seaweed for Taste Enhancement and Salt Replacement. Matís Report 19-13. Closed report.

    Kolbrún Sveinsdóttir, Kyösti Pennanen, Raija ‐ Liisa Heiniö, Rósa Jónsdóttir, Emilía Martinsdóttir. Consumer's evaluation of enriched seafood product concepts / Consumer survey of enriched seafood dishes. Matís Report 11-13. Closed report. Report summary.

    2012:

    Rósa Jónsdóttir, Hólmfríður Sveinsdóttir, Jón Óskar Jónsson, Jóna Freysdóttir, Patricia Hamaguchi, Halldór Benediktsson, Annabelle Vrac, Hörður G. Kristinsson. Dietary supplements from Icelandic seaweed. Matís report 02-12. Closed report.  Report summary.

    2010:

    Rósa Jónsdóttir, Patricia Hamaguchi, Guðrún Ólafsdóttir, Tao Wang. Gold in the fists of Ægis / Antioxidants from Icelandic marine sources. Matís Report 20-10, 15 s.

    2009:

    Rósa Jónsdóttir, Aðalheiður Ólafsdóttir, Óli Þór Hilmarsson and Guðjón Þorkelsson. Taste and pastures. Matís Report 45-09, 11 p. Closed report. Report summary.

    Guðjón Þorkelsson, Rósa Jónsdóttir, Aðalheiður Ólafsdóttir and Óli Þór Hilmarsson. Grazing on Angelica archangelica and flavor of lamb meat / Grazing on Angelica archangelica and flavor of lamb meat. Matís Report 20-09, 36 p.

    2008:

    Arnljótur B. Bergsson, Margrét Geirsdóttir, Rósa Jónsdóttir, Þóra Valsdóttir, Hörður G. Kristinsson, Guðjón Þorkelsson. 2008. A brief summary of processing fish proteins. Matís report 36-08. Closed report.

    Rósa Jónsdóttir, Margrét Bragadóttir, Guðrún Ólafsdóttir. Oxidation in fish muscle - The role of phospholipids, proteins, antioxidants and the effect of boiling on oxidation in fish muscle. Matís Report 08-08, 78 s.

    2007:
    Margrét Geirsdóttir, Guðmundur Óli Hreggviðsson, Lárus Freyr Þórhallsson, Rósa Jónsdóttir, Patricia Hamaguchi, 2007. Isolation, purification and research into blood pressure lowering peptides from fish proteins. Matís Report 48-07, 46 p.

    Helga Gunnlaugsdóttir, Guðjón Atli Auðunsson, Guðmundur Víðir Helgason, Rósa Jónsdóttir, Ingibjörg Jónsdóttir, Þuríður Ragnarsdóttir, Sasan Rabieh. 2007. Inorganic trace elements in organisms in NW Iceland. Matís Report 44-07, 35 p.

    Rósa Jónsdóttir, Soffía Vala Tryggvadóttir, Margrét Bragadóttir, Haraldur Einarsson, Höskuldur Björnsson, Sveinbjörn Jónsson. 2007. Bait from fishery byproducts. Matís Report, 43-07, 38 pages. The bait is fat ”- Bait from by-products

    2006:
    Margrét Bragadóttir, Judith Reichert, Rósa Jónsdóttir, Guðrún Ólafsdóttir. Characterization and antioxidant properties of aqueous extracts from capelin ( Mallotus villosus). IFL report 37-06, 26 p.

    Guðrún Ólafsdóttir, Rósa Jónsdóttir, Heimir Tryggvason, Margrét Bragadóttir, Birna Guðbjörnsdóttir, Sigurjón Arason. 2006. Money-odor-odor-less production of dried fish products. IFL report 08-06, 81 pages.

    2005:
    Ása Þorkelsdóttir, Kolbrún Sveinsdóttir, Kristín A. Þórarinsdóttir, Soffía Vala Tryggvadóttir, Emilia Martinsdóttir, Rósa Jónsdóttir, Páll Gunnar Pálsson. 2005. Shelf life of chilled radio-frequency and conventionally heated cod and salmon fillets. IFL report 18-05, 59 pages.

    Rósa Jónsdóttir, Soffía Vala Tryggvadóttir, Guðrún Ólafsdóttir, Bergrós Ingadóttir, Magnús Már Kristjánsson, Þrándur Helgason, Sveinbjörn Jónsson 2005. Attractants in bait - Fatal attraction. IFL report 04-05, 65 pages.

    Chaine E, Olafsdottir, G, Jónsdottir, R o.fl. 2005. FishNose - Development of an electronic nose control system for the automated quality control of smoked fish. Final report of the European project Fishnose. IFL report 03-05, 136 pages.

    2003:
    Tryggvadottir, SV, Jonsdottir, R. and Olafsdottir, G. 2003. Artibait. Individual progress report for the European Commission (Artificial Bait alternatives, mainly based on fish waste Q5CR-2000-70427). IFL report 31-03, 41 pages.

    2002:
    Rósa Jónsdóttir, Guðrún Ólafsdóttir, Sigurður Hauksson and Jón Magnús Einarsson, 2002. Flavors from seafood - Volatile fragrance. IFL report 17-02, 51 pages.

    Guðrún Ólafsdóttir, Soffía Vala Tryggvadóttir and Rósa Jónsdóttir, 2002. Multisensor forFish. Storage studies of frozen hake in Madrid 2000 and fresh cod in Hamburg. Electronic nose, Texture and Sensory Analysis. Fair CT - 98-4076. Third individual progress report. December 2000 - November 2001, December 2001 - April 2002 - Extention period. IFL report 10-02, 45, p.

    Tryggvadottir, SV, Jónsson, GP, Jonsdottir, R. and Olafsdottir, G. 2002. Artibait. Individual progress report for the European Commission (Artificial Bait alternatives, mainly based on fish waste Q5CR-2000-70427) Rf report 09-02, 44 p.

    Rósa Jónsdóttir, Guðrún Ólafsdóttir, Emilía Martinsdóttir and Guðmundur Stefánsson, 2001. Characterization of roe ripening - III. Project report to Nordisk Industrifond. IFL report 01-02, 54 p.

    2001:
    Rósa Jónsdóttir, Guðjón Þorkelsson, Birna Mørkøre and Helgi í Brekkunum, 2001. Fatty acid composition of Faroese lamb meat. Project report to NORA. IFL report 36-01, 56 p.

    Rósa Jónsdóttir, Guðrún Ólafsdóttir and Jón Magnus Einarsson, 2001. Database of flavors in seafood: Methods for the analysis of odorants. IFL report 16-01, 50 pages.

    Rósa Jónsdóttir, Guðrún Ólafsdóttir, Áslaug Högnadóttir, Emilía Martinsdóttir and Guðmundur Stefánsson, 2001. Characterization of roe ripening - II. Project report to Nordisk Industrifond. IFL report 04-01, 33 pages.

    2000:
    Guðrún Ólafsdóttir, Jóhann Örlygsson, Sigrún Jónsdóttir, Ágúst Vilhjálmsson, Hélène L. Lauzon and Rósa Jónsdóttir, 2000. Accurate shelf life forecast models for fish - Thermal processes, microbial growth experiments, electron nose measurements, shelf life research. IFL project report 05-00.

    Rósa Jónsdóttir, Guðrún Ólafsdóttir, Áslaug Högnadóttir, Emilía Martinsdóttir and Guðmundur Stefánsson, 2000. Characterization of roe ripening. Project report to Nordisk Industrifond. IFL report 01-00, 86 p.

    1999:
    Guðrún Ólafsdóttir, Rósa Jónsdóttir, Margrét Geirsdóttir and Þyrí Valdimarsdóttir, 1999. Flavors and fragrances from seafood. IFL report 03-99.

    1998:
    Birna Baldursdóttir, Guðjón Þorkelsson, Þyrí Valdimarsdóttir and Rósa Jónsdóttir, 1998. Fat in the feed of farmed pigs. Agricultural Research Institute. Fjölrit Rala nr. 195.

    Rósa Jónsdóttir, Hörður Kristinsson, Einar Sigurðsson and Guðjón Þorkelsson, 1998. The effect of the fatty acid composition of lard on the quality of pepperoni. Agricultural Research Institute. Fjölrit Rala nr. 196.

    1997:
    Rósa Jónsdóttir, 1997. The effect of feed fat on pork, examined by fatty acid analyzes, sensory evaluation and diversity statistics. MS thesis in food science. Agricultural Research Institute. Fjölrit Rala nr. 188.

     
    POSTER / Poster presentations:

    2011:

    R. Jónsdóttir, J. Ó. Jónsson, H. Sveinsdóttir, P. Hamaguchi, H. Benediktsson, HG Kristinsson. Functional Ingredients from Icelandic seaweed. IFT Annual meeting and food expo, New Orleans, 2011. Poster presentation.

    2010:

    Rósa Jónsdóttir, Margrét Geirsdóttir, Patricia Y. Hamaguchi, Hörður G. Kristinsson. Inhibition of hemoglobin-mediated lipid oxidation in washed cod muscle by bioactive compounds from marine source. Poster at the International Marine Ingredients Conference, Oslo, Norway, 20-21 September 2010.

    Rósa Jónsdóttir, Patricia Y. Hamaguchi, Margrét Geirsdóttir, Hörður G. Kristinsson. Bioactive compounds from Icelandic marine source. Poster at the International Marine Ingredients Conference, Oslo, Norway, 20-21 September 2010.

    Margret Geirsdottir, Rosa Jonsdottir, HordurG. Kristinsson, Patricia Yuca Hamaguchi, Annabelle Vrac. Comparison of bioactive properties of cod and chicken protein hydrolysates. Poster at the IFT Annual Meeting, Chicago, July 2010.

    2009:

    Tao Wang, Rósa Jónsdóttir, Hordur G. Kristinsson, Guðmundur Óli Hreggviðsson, Jón Óskar Jónsson, Guðrún Ólafsdóttir. 2009. Evaluation of antioxidant activity of enzymatic extracts from the red algae Palmaria palmata. Poster at the IFT annual meeting. Anaheim, CA, June 2009.

    Patricia Hamaguchi, Rósa Jónsdóttir, Annabelle JC Vrac, Matís, Hordur G. Kristinsson Bioactivity properties of fractionated capelin ( Mallotus villosus) protein. Poster at the IFT annual meeting. Anaheim, CA, June 2009.

    Guðrún Ólafsdóttir, Tao Wang, Rósa Jónsdóttir, Hörður Kristinsson, Guðmundur Óli Hreggviðsson, Guðjón Þorkelsson. Palmaria palmata in food formulations as natural antioxidant and functional ingredient. Poster at the Innovation in the Nordic Marine Sector, Reykjavik, May 12th 2009.

    Rósa Jónsdóttir, Tao Wang, María Jesús Gonzalez, Isabel Medina, Hordur G. Kristinsson, Guðrún Ólafsdóttir. Bioactivity of phlorotannins in brown seaweed, Fucus vesiculosus. Poster at the conference TAFT 2009, Copenhagen 15.-18. September.

    Guðjón Þorkelsson, Rósa Jónsdóttir, Aðalheiður Ólafsdóttir, Óli Þór Hilmarsson, Sigríður Jóhannesdóttir, Halla Steinólfsdóttir, Guðmundur Gíslason. Is there a different taste of lamb meat than lamb meat on a regular pasture ?. Academic Conference 2009.

    2008:

    G. Ólafsdóttir, R. Jónsdóttir, M. Bragadóttir, T. Wang. 2008. Odor development in washed cod muscle system and effect of cooking. OXIFISH in collaboration with PROJECT 4.3 LIPIDTEXT. The 5th SEAFOODplus Conference, 8-10 June 2008, Copenhagen, Denmark

    2007:
    Rósa Jónsdóttir, Margrét Bragadóttir, Guðrún Ólafsdóttir. 2007. Antioxidant effect of aqueous phase of capelin ( Mallotus villosus). Poster presented at the 5th Euro Fed Lipid Congress and 24th Symposium of the Nordic Lipidforum., Gothenburg, Sweden, p. 402.

    Tao Wang, Rósa Jónsdóttir, Guðrún Ólafsdóttir. 2007. Screening of antioxidant activity in Icelandic seaweed. Poster presented at the 5th Euro Fed Lipid Congress and 24th Symposium of the Nordic Lipidforum, Gothenburg, Sweden. View

    2005:
    Rósa Jónsdóttir, Guðrún Ólafsdóttir, Frank Westad, Jon Erik Haugen Characterization of volatile compounds in smoked salmon - the use of electronic nose to predict the quality. 9th Scandinavian Symposium on Chemometrics. August 21st-25th 2005, Reykjavík, Iceland. Abstracts and program, p. 114.

    Rósa Jónsdóttir, Margrét Bragadóttir and Gudmundur Örn Arnarson. 2005. The use of solid-phase microextraction (SPME) to measure changes in volatile compounds during storage of microencapsulated fish oil. The 23rd Nordic Lipid Symposium. Reykjavík, Iceland, June 1 - 4, 2005. Program and Abstracts, p. 27.

    2003:
    Rósa Jónsdóttir, Soffia V. Tryggvadóttir and Guðrún Ólafsdóttir. 2003. Volatile compounds in artificial bait based on fish by-products. First joint Trans Atlanctic Fisheries Technology Conference. 10-14 June 2003 Reykjavik, Iceland. Proceedings, p. 371.

    Guðrún Ólafsdóttir and Rósa Jónsdóttir. 2003. Detection of volatile compound by an electronic nose to monitor freshness of haddock stored in ice. First joint Trans Atlanctic Fisheries Technology Conference. 10-14 June 2003 Reykjavik, Iceland. Proceedings, p. 151.

    Guðrún Ólafsdóttir, Rósa Jónsdóttir, Soffia Vala Tryggvadóttir, Sigurdur Einarsson and Hélène L. Lauzon. 2003. Prediction of freshness quality of haddoc fillets using electronic nose, texture and TVN measurements. First joint Trans Atlanctic Fisheries Technology Conference. 10-14 June 2003 Reykjavik, Iceland. Proceedings, p. 148.

    Guðmundur Örn Arnarson, Rósa Jónsdóttir, Margrét Bragadóttir, Jón Ögmundsson. 2003. Stability of microencapsulated n-3 cod liver oil. First joint Trans Atlanctic Fisheries Technology Conference. 10-14 June 2003 Reykjavik, Iceland. Proceedings, p. 93.

    Kristín Anna Þórarinsdóttir, Guðný Guðmundsdóttir, Rósa Jónsdóttir and Sigurjón Arason. 2003. Weight fractions of by-products from gadios caught around Iceland. First joint Trans Atlanctic Fisheries Technology Conference. 10-14 June 2003 Reykjavik, Iceland. Proceedings, p. 365.


    ARTICLES IN NONS AND JOURNALS / Articles in non-refereed journals:

    Rósa Jónsdóttir. The Icelandic seaweed is special. Útvegsblaðið December 2013. Page. 58-59. Read the article

    Rósa Jónsdóttir, Þóra Valsdóttir, Hörður G. Kristinsson. 2011. Algae, seaweed and health. Food is on the human side, 23rd year. s. 23. Read the article

    Rósa Jónsdóttir and Hörður G. Kristinsson. 2010. Bioactive substances from algae. Ægir, 103 (3).

    Soffía Vala Tryggvadóttir, Rósa Jónsdóttir, Guðrún Ólafsdóttir. 2004. Bait attraction. Ægir 97, 9, 34-37.


    CONFERENCE PROGRAM / Conference proceedings:

    2009:

    Guðjón Þorkelsson, Rósa Jónsdóttir, Aðalheiður Ólafsdóttir, Óli Þór Hilmarsson, Sigríður Jóhannesdóttir, Halla Steinólfsdóttir, Guðmundur Gíslason. Is there a different taste of lamb meat than lamb meat on a regular pasture? Agricultural Research Council 2009, 12 - 13 February, 6th year, p. 385-389. Read the article.

    Rósa Jónsdóttir, Tao Wang, María Jesús Gonzalez, Isabel Medina, Hordur G. Kristinsson, Guðrún Ólafsdóttir. Bioactivity of phlorotannins in brown seaweedF ucus vesiculosus. TAFT. 3rd Joint Trans-Atlantic Fisheries Technology Conference Sept. 15–18. Copenhagen, Denmark. p. 91.

    G. Ólafsdóttir, R. Jónsdóttir, M. Bragadóttir, T. Wang. 2008. Odor development in washed cod muscle system and effect of cooking. OXIFISH in collaboration with PROJECT 4.3 LIPIDTEXT. The 5th SEAFOODplus Conference, 8-10 June 2008, Copenhagen, Denmark

    2007:
    Rósa Jónsdóttir, Margrét Bragadóttir, Guðrún Ólafsdóttir. 2007. Antioxidant effect of aqueous phase of capelin ( Mallotus villosus). In: Book of abstracts of the 5th Euro Fed Lipid Congress and 24th Symposium of the Nordic Lipidforum., Gothenburg, Sweden, p. 402.

    2006:
    Gudrun Olafsdottir, Hélène L. Lauzon, Rósa Jónsdóttir, Emilía Martinsdóttir. 2006. Multivariate Quality Prediction of Cod ( Gadus morhua) and Haddock Fillets ( Melanogrammus aeglefinus) Stored Under Superchilling and Temperature Abusive Conditions. In: Proceedings of the 2nd International Cold Chain Management Workshop 8-9 May 2006.

    2005:
    Guðrún Ólafsdóttir, Chanie E, Westad F, Rósa Jónsdóttir, Bazzo S, Labreche S, Marcq P, Lundby F, Haugen JE. 2005. Rapid Control of Smoked Atlantic Salmon Quality by Electronic Nose: Correlation with Classical Evaluation Methods. In: Marco S, Montoliu I, editors. Proceedings of the 11th International Symposium on Olfaction and Electronic Nose, ISOEN2005, Electronic Department, Physics Faculty, Barcelona University, Barcelona, Spain. p 110-4.

    Rósa Jónsdóttir, Margrét Bragadóttir and Gudmundur Örn Arnarson. 2005. The use of solid-phase microextraction (SPME) to measure changes in volatile compounds during storage of microencapsulated fish oil. The 23rd Nordic Lipid Symposium. Reykjavík, Iceland, June 1 - 4, 2005. Program and Abstracts, p. 27.

    Guðrún Ólafsdóttir, Chanie E, Westad F, Rósa Jónsdóttir, Bazzo S, Labreche S, Marcq P, Lundby F, Haugen JE. 2005. Rapid Control of Smoked Atlantic Salmon Quality by Electronic Nose: Correlation with Classical Evaluation Methods. In: Marco S, Montoliu I, editors. Proceedings of the 11th International Symposium on Olfaction and Electronic Nose, ISOEN2005, Electronic Department, Physics Faculty, Barcelona University, Barcelona, Spain. p 110-4.

    2003:
    Rósa Jónsdóttir, Guðrún Ólafsdóttir, Sigurður Hauksson and Jón Magnús Einarsson. 2003. Volatile flavor compounds in seafood flavorants. First joint Trans Atlanctic Fisheries Technology Conference. 10-14 June 2003 Reykjavik, Iceland. Proceedings, p. 353.

    Rósa Jónsdóttir, Soffia V. Tryggvadóttir and Guðrún Ólafsdóttir, 2003. Volatile compounds in artificial bait based on fish by-products. First joint Trans Atlanctic Fisheries Technology Conference. 10-14 June 2003 Reykjavik, Iceland. Proceedings, p. 371.

    E. Falch, R. Jónsdóttir, NB Shaw, S. Arason, KAÞórarinsdóttir, JP Kerry 3, C. Malone, JP Berge, J. Dumay, J. Rainuzzo, M. Sandbakk, T.Rustad, M. Aursand, 2003. Variation in lipid composition in different rest biomass from species of the gadidae family. First joint Trans Atlanctic Fisheries Technology Conference. 10-14 June 2003 Reykjavik, Iceland. Proceedings, p. 323.

    Guðrún Ólafsdóttir and Rósa Jónsdóttir, 2003. Detection of volatile compound by an electronci nose to monitor freshness of haddock stored in ice. First joint Trans Atlanctic Fisheries Technology Conference. 10-14 June 2003 Reykjavik, Iceland. Proceedings, p. 151.

    Guðrún Ólafsdóttir, Rósa Jónsdóttir, Soffia Vala Tryggvadóttir, Sigurdur Einarsson and Hélène L. Lauzon, 2003. Prediction of freshness quality of haddoc fillets using electronic nose, texture and TVN measurements. First joint Trans Atlanctic Fisheries Technology Conference. 10-14 June 2003 Reykjavik, Iceland. Proceedings, p. 148.

    Guðmundur Örn Arnarson, Rósa Jónsdóttir, Margrét Bragadóttir, Jón Ögmundsson, 2003. Stability of microencapsulated n-3 cod liver oil. First joint Trans Atlanctic Fisheries Technology Conference. 10-14 June 2003 Reykjavik, Iceland. Proceedings, p. 93.

    Kristín Anna Þórarinsdóttir, Guðný Guðmundsdóttir, Rósa Jónsdóttir and Sigurjón Arason, 2003. Weight fractions of by-products from gadios caught around Iceland. First joint Trans Atlanctic Fisheries Technology Conference. 10-14 June 2003 Reykjavik, Iceland. Proceedings, p. 365.

    2001:
    Birna Baldursdóttir, Emma Eyþórsdóttir, Guðjón Þorkelsson, Helga Lilja Pálsdóttir, Óli Þór Hilmarsson and Rósa Jónsdóttir. 2001. Water resistance of pork. Ministerial Conference 2001, p. 265-268, ISSN 1563-2520

    Guðjón Þorkelsson, Baldur Þ. Vigfússon, Rósa Jónsdóttir and Ólafur Reykdal 2001. Chemical composition of foal meat. Ministerial Conference 2001, p. 261-264, ISSN 1563-2520

    1999:
    Birna Baldursdóttir, Rósa Jónsdóttir, Þyrí Valdimarsdóttir and Guðjón Þorkelsson, 1999. Fishmeal in the feed of farmed pigs. Ministerial Conference 1999.

    Þyrí Valdimarsdóttir, Stefán Scheving Thorsteinsson, Guðjón Þorkelsson and Rósa Jónsdóttir, 1999. Sensory quality of lamb meat from autumn breed rams and castrates - Sensory evaluation of autumn-fed rams and geldings. Ministerial Conference 1999: 121-130.

    1998:
    Rósa Jónsdóttir, Þyrí Valdimardóttir, Guðjón Þorkelsson and Birna Baldursdóttir, 1998. Influence of fishoil in feed on fatty acid composition and sensory quality of pork. 44th Intenational Congress of Meat Science and Technology, August 31 to September 3, 1998. Proceedings.

    1997:
    Birna Baldursdóttir, Guðjón Þorkelsson, Þyrí Valdimarsdóttir and Rósa Jónsdóttir, 1997. Fat in the feed of farmed pigs. Ministerial Conference 1997: 276-286.

    1996:
    Rósa Jónsdóttir, Guðjón Þorkelsson and Guðmundur G. Haraldsson, 1996. Influence of dietary fishmeal and fatty acid composition and eating quality of pigs. Í. “Meat for the comsumer”, 42nd International Congress of Meat Science and Technology, 1-6 September 1996. Proceedings, p. 218-219.

    Guðjón Þorkelsson, Ylva Bergquist, Kerstin Lundstrom and Rósa Jónsdóttir, 1996. Fatty acid composition of M.Longissimus Dorsi of different fat grades of Icelandic lamb. In: "Meat for the Comsumer", 42nd International Congress of Meat Science and Technology, 1-6 September 1996. Proceedings, p. 224-225.